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87results about How to "Guaranteed decomposition" patented technology

Casting method of magnesium alloy casting

The invention provides a casting method of a magnesium alloy casting. With the method, advantages of different casting methods are utilized, and defects of the methods are overcome. With a special shell preparation method and a method for preventing magnesium alloy-casting mold interfacial reaction, a unique casting technology suitable for thin-wall complex magnesium alloy part production is formed. The method has important significance for developing magnesium alloy performance advantages and satisfying automotive magnesium alloy application requirements.
Owner:HUBEI UNIV OF AUTOMOTIVE TECH

Device and method for online regenerating low-temperature denitration catalyst by rotary fixed bed

The invention discloses a device for online regenerating a low-temperature denitration catalyst by a rotary fixed bed. The device comprises a fixed bed reactor, an upper end cover, a lower end cover, four air inlet pipes, four air outlet pipes, a driving shaft, a first sealing element, a supporting rack, a motor, a coupler, a rack and a second sealing element, wherein four separators are used for separating the inner space of the fixed bed reactor into four independent reaction zones; the four reaction zones are sequentially a removing zone, a first transition zone, a regeneration zone and a second transition zone; the four air inlet pipes are arranged on the lower end cover, and the four air outlet pipes are arranged on the upper end cover; and each reaction zone respectively corresponds to respective air inlet pipe and respective air outlet pipe. According to the device, a low-temperature denitration catalyst can be online continuously regenerated. The invention further provides an online regeneration method by utilizing the device, and the problem that the low-temperature denitration catalyst is hardly online regenerated in current process of denitrating coal-fired flue gas in the thermal power industry is solved.
Owner:SOUTHEAST UNIV

Low-temperature automobile expansion adhesive and preparation method thereof

The invention discloses a low-temperature automobile expansion adhesive. The low-temperature automobile expansion adhesive is made of the following raw materials in parts by weight: 100 parts of a polymer, 3-5 parts of a peroxide vulcanization agent, 0.5-3 parts of a vulcanization auxiliary agent, 5-15 parts of a foaming agent, 0.5-8 parts of a foaming activator, 1-10 parts of a filler, 2-15 partsof a tackifier, 0.5-3 parts of a lubricant, 0-2 parts of an antioxidant, and 0-10 parts of a flame retardant. According to the low-temperature automobile expansion adhesive, the raw material composition is carefully chosen, the content of each raw material is optimized, and the prepared low-temperature automobile expansion adhesive has high foaming ratio and small product density, and can fill large cavities. The expansion adhesive has high bonding strength with an ABS framework member. The expansion adhesive has good high-temperature baking stability. The expansion adhesive after foaming isnot easy to collapse and shrink. The low-temperature foaming performance and high-temperature foaming ratio are well balanced. The storage stability is good, the product quality is stable, and a storage period is relatively long.
Owner:浙江杰上杰新材料股份有限公司

Preparation method of honeycomb-shaped Mn-based low-temperature denitration catalyst

The invention discloses a preparation method of a honeycomb-shaped Mn-based low-temperature denitration catalyst. The preparation method comprises steps as follows: (1), titanium dioxide, a molecularsieve and a solution containing manganese nitrate, cerium nitrate and iron nitrate are mixed uniformly, a mixture is dried, roasted at low temperature and smashed, and a powdery material is obtained;(2), the powdery material obtained in the step (1) is subjected to a forming process of the denitration catalyst, and the honeycomb-shaped Mn-based low-temperature denitration catalyst is obtained. The catalyst prepared with the method has larger pore volume and higher strength and is good in forming performance and not prone to cracking, the active components are manganese oxides in different valence states, and the catalyst is excellent in denitration performance and has good capability of resisting water vapor and SO2 poisoning.
Owner:CHINA PETROLEUM & CHEM CORP +1

Soft-touch modified material with low volatile organic compounds and low odor and preparation method thereof

The invention discloses a soft-touch modified material with low volatile organic compounds and low odor and a preparation method thereof and belongs to the technical field of high molecular materials.The soft-touch modified material is prepared from the following raw materials in parts by mass: 20 to 40 parts of high-melt-index co-polypropylene, 10 to 30 parts of glass fiber, 1 to 2 parts of an anti-scratching agent, 15 to 40 parts of high-crystallization homo-polypropylene, 20 to 30 parts of a thermoplastic elastomer, 3 to 5 parts of a compatilizer, 0.3 part of a main antioxidant, 0.2 part of an auxiliary antioxidant and 0.5 part of a lubricant. The soft-touch modified material disclosed by the invention can be used for reducing the odor concentration of the material and the content of the volatile organic compounds; a technology is simple and convenient to operate and the production benefits are high.
Owner:贵州凯科特材料有限公司

Vertical type multi-layer aerobic biological composting device

The invention relates to a composting device and discloses a vertical type multi-layer aerobic biological composting device. The vertical type multi-layer aerobic biological composting device comprises a vertical cylinder, wherein a sealing cover is arranged on the top of the vertical cylinder, a feeding hopper is arranged on the sealing cover, a plurality of partition plates are vertically distributed in the vertical cylinder and are used for dividing the vertical cylinder into a plurality of partition layers, and a blanking door is arranged on each partition layer; a rotary shaft which simultaneously penetrates through the sealing cover and the partition plates is vertically arranged, a drive motor is arranged on the outer end part of the rotary shaft, and a plurality of stirrers corresponding to the partition layers are arranged on the rotary shaft. An air feeding tube which is communicated with the partition layers simultaneously is arranged at one side of the outer part of the vertical cylinder, and an air extracting tube which is communicated with the partition layers simultaneously is arranged at the other side of the outer part of the vertical cylinder. The device can be used for recycling various urban and rural organic solid wastes, the floor space of the composting device is reduced, and the device has important theoretical and practical significance in guaranteeing the urban environment to be beautiful and promoting the development of regional economy.
Owner:SHAANXI KINGSAM TECH

Composite material, catalyst using composite material as carrier, and preparation method and applications of catalyst

The invention relates to a composite material, a catalyst using the composite material as a carrier, and a preparation method and applications of the catalyst, wherein particularly an electrocatalystN / MO2-C based on metal oxide-electric conduction material composite fiber / MO2-C and using the metal oxide-electric conduction material composite fiber / MO2-C as a carrier is prepared based on an electrospinning technology and a solution method. According to the present invention, the electrocatalyst carrier / MO2-C is metal oxide-electric conduction material composite fiber; the catalyst carrier canbe dispersed in the solution, and then Pt catalyst particles can be introduced through a reducing method, or a Pt salt precursor can be added to a spinning solution, and then the Pt-based electrocatalyst is prepared through a one-step method; through the addition of the electric conduction carbon material and the one-step low temperature treatment of the polymer nanometer fiber at the late stage,the loose porous structure of the prepared carrier is ensured while the electric conductivity of the carbon material to the carrier and the structural stability are ensured; and through the one-step low temperature treatment in the air or oxygen atmosphere, the oxidation of the metal precursor salt is ensured while the decomposition of the polymer precursor and the stable presence of the carbon material are ensured.
Owner:DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI

Method and system for treating chemical abraum salt containing organic matter through self-propagating pyrolysis method

PendingCN109519928AStable and controllable pyrolysis temperatureUniform temperature distributionIncinerator apparatusPelletizingPre treatment
The invention relates to the field of solid waste treatment, in particular to a method and system for treating chemical abraum salt containing organic matter through a self-propagating pyrolysis method. The method comprises the following steps that pretreatment is carried out in a pelletizing or washing or treating-free mode according to particle size distribution of chemical abraum salt; 2, materials are distributed; 3, pyrolysis treatment is carried out, and particularly organic matter in a material layer is pyrolyzed into a gas compound through a self-propagating pyrolysis method; 4, the pyrolyzed material layer is cooled to obtain finished salt; and 5, flue gas treatment is carried out, and particularly flue gas containing the gas compound is introduced into a flue gas purifying treatment system for purifying treatment. The finished salt obtained from the abraum salt treated through the method has no melting and agglomeration phenomenon, the TOC content is as low as 10.00ppm, and the requirements of ionic membrane caustic soda can be met. The invention further provides a treating system adopting the method, a self-propagating pyrolysis device in the system can sufficiently utilize heat, can stably control pyrolysis temperature and is suitable for treatment various kinds of abraum salt.
Owner:CHONGQING ANGRUIYUE SCI & TECH

Image retrieval method based on robot vision platform

The invention discloses an image retrieval method based on a robot vision platform. The image retrieval method based on the robot vision platform includes: using a binocular camera to collect an image sample, identifying content of the image sample, decomposing an image after being identified according to an image decomposition rule, and obtaining image fragments; sending the image fragments in a tabular form to a retrieval user, and enabling the retrieval user to mark the image fragments; classifying the image fragments after being marked according to a support vector machine model, finding out an image fragment set boundary, removing a part of the image fragments, close to the image fragment set boundary, according to an indexing rule, performing similarity retrieval on the residual image fragments after the image fragments close to the image fragment set boundary are removed, and obtaining an image material highest in similarity. The image retrieval method based on the robot vision platform uses binocular distance measurement to obtain distance features of a space target, improves image decomposition accuracy and objectivity, and improves efficiency and accuracy of the similarity retrieval of the image fragments by establishing the image decomposition rule and the indexing rule.
Owner:JIANGSU CITRON BIOTECH CO LTD

Green kumquat powder as well as preparation method and purpose thereof

The invention relates to the technical field of biology, in particular to green kumquat powder as well as a preparation method and purpose thereof. Cold treatment processes are adopted in the production process of the green kumquat powder, that is, except for a spray drying process, the processing temperature of the other processes is 25-35 DEG C; vitamin C detection and tracking are performed on the green kumquat powder, so that the decomposition quantity of vitamins C in the processing process is controlled by 5 percent or below, and no loss of nutrient substances in the green kumquat powder is ensured. The green kumquat powder provided by the invention can be taken as a raw material of food and a healthcare product and has the effects of reducing phlegm, quenching thirst, promoting digestion, realizing anti-alcoholism and the like.
Owner:HAINAN NANPAI

Plant nutrition bowl used for saline-alkali soil and based on coal-fired flue gas desulfurization gypsum

InactiveCN107810741ASubstitutional sodium reductionConvenience for environmental greeningCalcareous fertilisersReceptacle cultivationAlkali soilDecomposition
The invention discloses a plant nutrition bowl used for saline-alkali soil and based on coal-fired flue gas desulfurization gypsum. The plant nutrition bowl comprises a bowl body, a planting pit withan upward opening is formed in the center of the bowl body, and a water storage hole with an upward opening is formed in the periphery of the bowl body and around the planting pit; the bowl body comprises the coal-fired flue gas desulfurization gypsum. Compared with the mode that the saline-alkali soil forms a relatively independent growth environment, flowers, grass and seedlings can be planted immediately after the planting pit is filled with nutrient soil; the water storage hole around the planting pit provides sufficient water for plant growth, and meanwhile, the water storage hole guarantees decomposition of the nutrition bowl; the nutrition bowl provides nutrients for plants, and meanwhile exchangeable sodium in the saline-alkali soil is replaced with Ca2+ and Mg2+ in the coal-firedflue gas desulfurization gypsum obtained after the nutrition bowl is decomposed, so that the content of the exchangeable sodium in the saline-alkali soil is reduced, and the strong alkali condition ofthe soil is also changed. The nutrition bowl is mainly made of industrial waste, can be industrialized, and facilitates environment greening of the saline-alkali soil and construction of park green land.
Owner:WEIFANG YOURONG IND

Method for determining content of niobium, silicon and phosphorus in ferromanganese niobium

The invention provides a method for determining the content of niobium, silicon and phosphorus in ferromanganese niobium. The method comprises steps that mixed acid, nitric acid and hydrofluoric acidare sequentially added to a ferromanganese niobium sample, after the ferromanganese niobium sample is completely dissolved, the dissolved sample solution is placed in a volumetric flask to prepare thetest solution of to-be-tested elements, the mixed acid is prepared from aqua regia and the dilute sulfuric acid at a volume ratio of 4-7.5:1, a matrix mother solution and a standard solution of the to-be-tested elements are prepared; the content of the to-be-tested elements in the ferromanganese niobium is determined according to the test solution of the to-be-tested elements, the matrix mother solution and the standard solution of the to-be-tested elements; the to-be-tested elements are at least one of niobium, silicon and phosphorus.
Owner:武汉钢铁有限公司

Wavelet packet decomposition based gas turbine engine combustion signal analysis method

The invention discloses a wavelet packet decomposition based gas turbine engine combustion signal analysis method. The wavelet packet decomposition based gas turbine engine combustion signal analysis method comprises the steps of using a sensor to acquire combustion signals in a multi-channel mode, filtering and amplifying the acquired combustion signals, then transmitting the signals to a CPU processor through an FPGA module, establishing a wavelet packet decomposition algorithm in the CPU processor to analyze the combustion signals in a frequency band dividing mode, then respectively transmitting analysis results to a human-computer interface and a control system. The wavelet packet decomposition based gas turbine engine combustion signal analysis method can accurately acquire a combustion pressure pulse signal of a combustion gas turbine and can send a corresponding instruction according to the acquired signal so as to ensure normal, stable and safe operation of a unit.
Owner:DONGFANG ELECTRIC AUTOMATIC CONTROL ENG CO LTD +1

Pyrolysis device for processing desulfurization waste liquid in partial oxidation environment

The invention discloses a pyrolysis device for processing desulfurization waste liquid in a partial oxidation environment. The pyrolysis device comprises a pressure-bearing housing, a jacket, an insulating layer and a refractory brick which are arranged from outside to inside and connected together, and a gas separation section I, a spray pyrolysis section II, a mixed flow pyrolysis section III, an inactive salt pyrolysis section IV and a pyrolysis salt chilling section V are communicated from top to bottom to treat the desulfurization waste liquid in the partial oxidation environment. The device adopts a segmental treatment mode, so that decomposition of aromatic compounds and organic matters in the desulfurization waste liquid is ensured in the partial oxidation environment, COD and sulfides in the generated wastewater are reduced, meanwhile, pyrolysis of the inactive salt in the desulfurization waste liquid in the reducing atmosphere is ensured; therefore, the pollution problem of the desulfurization waste liquid is thoroughly solved and effective components in the desulfurization waste liquid can be recycled.
Owner:TAIYUAN UNIV OF TECH

Method for absorbing wind turbine blade wastes in cement kiln

The invention provides a method for absorbing wind turbine blade wastes in a cement kiln. The method comprises the following steps: separating metal parts and high-chlorine content parts in the wind turbine blade wastes, and segmenting the remaining wind turbine blade wastes as massive wastes; grinding the massive wastes into particles so as to obtain ground materials; and taking the ground materials as alternative fuel of the cement kiln, and combusting the fuel in a cement kiln decomposing furnace. The method disclosed by the invention is simple, practical, less in initial investment and subsequent maintenance cost, environment-friendly and harmless, belongs to a circular economy manner, accords with the treatment policy of 'reduction, recycling and harmlessness' of municipal wastes, can thoroughly implement and carry out the national policy of cooperatively treating non-medical wastes and industrial wastes in the cement kiln, solves the thermosetting material waste disposal difficulty problem troubling the society for a long time, provides alternative fuel and raw materials for the high-energy-consumption cement industry and has wide application prospects.
Owner:SINOMATECH WIND POWER BLADE

Production method of rose vinegar

The invention relates to a production method of rose vinegar. A problem that existing rose vinegar cannot fully perform the medicinal values of rose is solved in the invention. The production method of the rose vinegar comprises the following steps: 1, mixing fresh rose flowers, Ligusticum wallichii, Eucommia ulmoides and Fructus Foeniculi, and crushing the obtained mixture to 200 meshes or below to obtain a first mixture; 2, mixing carefully chosen glutinous rice and mineral water, and boiling the carefully chosen glutinous rice and mineral water for 1 h to obtain a fourth mixture; and 3, mixing a third mixture, a sixth mixture and traditional pure vinegar according to a mass ratio of 1:4:1 to obtain a seventh mixture, adding vinegar koji to the seventh mixture, uniformly stirring the seventh mixture and the vinegar koji, placing the seventh mixture and the vinegar koji in a liquid fermentation tank, carrying out reflux fermentation at 26-30 DEG C for 144-192 h, and standing the fermented seventh mixture for 72-96 h to obtain an eighth mixture. The method is suitable for producing the rose vinegar.
Owner:SHANXI YUANYUAN VINEGAR IND

Preparation method of silicon-steel grade magnesium oxide

The invention relates to the technical field of magnesium oxide production, and concretely relates to a preparation method of magnesium oxide. The method comprises the following steps: 1)placing the crude magnesium oxide powder in a container, adding pure water for blending, washing a blended slurry to remove impurities, 2)pumping the slurry into a revolving bed reactor for reacting to obtain a slip, 3)aging the slip and separating to obtain magnesium hydroxide, drying, and 4)placing magnesium hydroxide in a high temperature calciner, employing a dynamic calcining method for calcining to obtain the magnesium oxide particles, and crushing and grading to obtain the silicon-steel grade magnesium oxide. Compared with a traditional silicon-steel grade magnesium oxide, the silicon-steel grade magnesium oxide produced by the invention has the advantages of low impurity content, uniform and adjustable particle size particle size distribution, low hydration rate, good suspensibility and stable quality.
Owner:上海实业振泰化工有限公司

Aquarium circulation life-supporting system with high load and resistance to water quality fluctuation

The invention discloses an aquarium circulation life-supporting system with high load and resistance to water quality fluctuation. Three independent modules including a sand cylinder filtration module, a water quality purification module and a water quality regulation module are arranged, so that the sand cylinder filtration amount does not need to be completely matched with a subsequent process,and the sand cylinder filtration effect can be greatly improved; an ultraviolet (UV) combined ozone sterilization system is adopted, and an aeration buffer tank is arranged, so that secondary pollution is avoided while efficient sterilization is achieved; the water quality regulation module optimizes quality indexes of outlet water, so that the outlet water is more suitable for survival of organisms; and the sand cylinder module is provided with an automatic countercurrent cleaning process, so that load resistance and regeneration capability of the system are effectively improved. The whole novel circulation life-supporting system can effectively improve the purification rate and purification degree of a water body through organic combination of all parts, water quality fluctuation resistance of the system is improved, stability of the system is enhanced, and the system can be widely applied to various types of aquarium.
Owner:GUANGXI UNIV

Method for preparing building ceramsite from quartz sand tailing

The invention discloses a method for preparing building ceramsite from quartz sand tailing, belongs to the technical field of quartz sand application, and solves the problem of huge cost of high-hardness building ceramsite in the prior art. The method comprises the following steps: (1) preparing materials; (2) feeding; (3) scattering, namely, respectively putting the conveyed quartz tailing and sludge into a scattering machine for scattering; (4) firing in a rotary kiln, namely, putting the mixed raw material which is scattered and uniformly mixed in the step (3) into a rotary kiln for roasting until the size of the mixed raw material is stable and the strength is increased, so as to obtain a primary ceramic material; (5) pelletizing, namely, putting the raw material fired in the rotary kiln in the step (4) into a pelletizing machine to be processed into spheres; (6) calcining, namely, putting the spherical raw material processed and formed by the pelletizing machine in the step (5) into a calcining machine for calcining to obtain a high-hardness and high-strength finished ceramsite product; (7) burdening; and (8) conveying. The ceramsite is high in hardness and low in cost.
Owner:成都南联科技有限公司

Method and device for recognizing mercury forms

The invention discloses a method for recognizing the mercury forms. The method comprises the following steps that 1, a sample is heated to be decomposed, a first curve that the mercury concentration changes along with temperature changes is obtained, and then the decomposing temperatures of various mercury compounds are obtained; 2, the decomposing temperatures of various mercury compounds in the step 1 are compared with the decomposing temperature of a standard mercury compound, and then the forms of part of mercury in the sample are recognized; 3, the mercury compounds which are not recognized in the step 2 are recognized through a step-by-step chemical extraction method. The invention further discloses a corresponding device. According to the method, the forms of most mercury in the mercury-containing solid sample can be recognized through temperature increasing desorption, and meanwhile the forms of the mercury compounds of which the decomposing temperatures overlap in the sample can be further recognized by combining the step-by-step chemical extraction method; in addition, by means of a constant-temperature thermal decomposition unit in the device, it can be guaranteed that mercury in all forms can be completely decomposed, and then mercury form recognition is more accurate.
Owner:HUAZHONG UNIV OF SCI & TECH

Pumpkin seed threshing machine

InactiveCN107950203AAchieve sievingAddressed issue where not all pumpkin seeds were being sifted out of the pulpThreshersPumpkin seedAgricultural engineering
The invention relates to the technical field of an agricultural device, and particularly relates to a pumpkin seed threshing machine. The pumpkin seed threshing machine comprises a frame, a negative pressure blower, a horizontal grid plate and an oblique plate; the grid plate and the oblique plate are fixed on the frame, and the oblique plate is located beneath the grid plate; several lines of pillar blocking lines are evenly arranged on the oblique plate from top to bottom, and every pillar blocking line comprises several blocking pillars, a blocking pillar gap is formed between two adjacentblocking pillars in every pillar blocking line; the pillar blocking gap of a lower line of pillar blocking line is smaller than the pillar blocking gap of an upper pillar blocking line; the inner partof the blocking pillar is provided with a hollow cavity, and the side face of the blocking pillar is provided with several through holes connected with the hollow cavity, and an air suction pipe connected with the hollow cavity is further arranged on the blocking pillar; the air suction pipe is connected with the negative pressure blower. The patent aims to solve the problem that the pumpkin seedthreshing machine in the prior art cannot screen out all pumpkin seeds from a pulp body.
Owner:重庆田益种子有限公司

Nanotube-based fluorescence marked carrier and preparation method thereof

ActiveCN106680252AImprove alloy orderEnsuring efficient radiative recombinationFluorescence/phosphorescenceBroad spectrumSemiconductor
The invention discloses a nanotube-based fluorescence marked carrier and a preparation method thereof. The fluorescence marked carrier comprises a nanotube inner wall, a quantum structure and a nanotube outer wall. The size of the nanotube structure is designed according to the characteristics of a simulated carrying object, and the size of the nanotube structure is regulated and controlled accurately by controlling the growth condition; in the fixed-temperature annealing process, a nanowire in a core-shell structure is guaranteed to be decomposed completely and the quantum structure limited between the nanotube inner wall and the nanotube outer wall is not damaged; the fluorescence marked part of the nanotube adopts a semiconductor quantum structure, has high fluorescence intensity, long duration time and stable photochemical property, is insusceptible to photobleaching and realizes high-efficiency radiative recombination; furthermore, continuous broad spectrum excitation can be adopted, the absorption coefficient is big, fluorescence emission peak is narrow, wavelength trailing is avoided, and the distinguishing degree is high; the nanotube structure can realize fluorescence marked carrying of the carrying object in the tube and also can perform the traditional wrapping or combined type fluorescence marked carrying.
Owner:PEKING UNIV

Air premixed type flare combustor capable of treating poisonous gas

The invention relates to an air premixed type flare combustor capable of treating poisonous gas. A flare gas cylinder body of the combustor is arranged inside an air clamping sleeve body for forming a clamping sleeve body structure, and swirling plates are arranged inside the clamping sleeve body structure; a flare gas nozzle is installed at the upper end of the flare gas cylinder body; a combustion chamber is connected to the outer wall of the upper part of the air clamping sleeve body through a supporting assembly, and the air clamping sleeve body extends into the combustion chamber; a temperature monitoring element is installed on the inner wall of the combustion chamber; the combustion chamber is of a cylindrical shape, and a gap is formed between the lower part of the combustion chamber and the air clamping sleeve body and accepts entry of secondary air; an ever-burning lamp, an igniter and a combustion-assisting device are arranged outside the air clamping sleeve body in the circumferential direction, are connected to the air clamping sleeve body and extend into the combustion chamber. According to the flare combustor, the air partial combustion-supporting mode is adopted, flames are short, combustion is stable, and the burn-off rate of the poisonous exhaust gas is greatly increased; the height and the manufacturing cost of a torch can be effectively lowered on the same exhaust condition.
Owner:BEIJING AEROSPACE PETROCHEM TECH & EQUIP ENG CORP LTD

A kind of preparation method of honeycomb MN-based low-temperature denitration catalyst

The invention discloses a preparation method of a honeycomb Mn-based low-temperature denitration catalyst, which includes the following contents: (1) Mix titanium dioxide, molecular sieve and a solution containing manganese nitrate, cerium nitrate and iron nitrate evenly, and then dry and roast at low temperature. , crushed into powdery material; (2) The powdery material obtained in step (1) is subjected to a denitration catalyst forming process to obtain a honeycomb Mn-based low-temperature denitration catalyst. The catalyst prepared by the method of the present invention has both large pore volume and strength, good molding performance, and is not easy to crack. The active component is manganese oxide in different valence states. The catalyst has excellent denitrification performance and good resistance to water vapor and SO2. 2 Poisoning ability.
Owner:CHINA PETROLEUM & CHEM CORP +1

Application of sago as pore former, pore former and method for preparing foam metal through pore former

The invention belongs to the technical field of preparation of foam metal materials, and particularly relates to application of sago as a pore former, a pore former and a method for preparing foam metal through the pore former. In view of the problems that existing pore formers used for preparing foam metal are high in cost, poor in pore-forming effect, difficult to move and the like, the invention provides the application of sago as the pore former during preparation of foam metal, and further provides the pore former and the method for preparing the foam metal. Metal powder and the pore former of sago are added into a binder to be mixed, then compacted into a billet, demolded and dried; pre-sintering is conducted; and the foam metal is obtained through sintering. The pore former of sagois good in pore-forming effect, easy to remove, is safe and environmentally friendly. The method for preparing foam materials through sago is simple in process, high in cost performance, free of environment pollution, prepared foam steel, foam titanium and foam copper have the advantages of being controllable in pore size, porosity, pore shape and the like, and the pore former and method have goodapplication prospects in the aspects of energy absorption control, biology and filtration separation.
Owner:CHENGDU ADVANCED METAL MATERIALS IND TECH RES INST CO LTD

Method for preparing ethylene from calcium carbide through wet process

InactiveCN102358848AGuaranteed decompositionGenerator carbide compositionsAcetyleneCalcium carbide
The invention discloses a technology for preparing ethylene from calcium carbide through a wet process. Quick lime and coke are taken as raw materials, an electrode paste is used for adhering and is sintered into electrodes, and the raw materials are fused at high temperature of between 2,000 and 2,500DEG C in an electric furnace to form CaC2. The method is carried out in a wet acetylene generator, and a great amount of reaction heat is moved by means of excessive water. Theoretically, when the calcium carbide forms the ethylene, 1kg of calcium carbide requires 0.562kg of water; and actually, 1kg of calcium carbide requires 10 to 20kg of water.
Owner:TIANJIN TAIYUAN INDAL GAS

Method for measuring deuteration rate of single crystal of potassium dideuterium phosphate

A method for measuring single crystal deuterating rate of dideuteropotassium phosphate includes applying NETZSCHSTA 449 c thermogravimeter ; setting temperature up rising program as staring from 30 deg.c , heating up to 260 deg.c with speed rate of 5 deg.c / min and holding constant temperature for one hour , then heating up to 450 deg.c with speed rate of 5 deg.c / min and holding constant temperature for one hour to obtain a thermogravimetric curve ; calculating out weight loss rate from said curve and substituting it into formula of x ( % ) = [ ( x / 1 ¿C x ) x 58.648 ¿C 8.948 ] x 100 for deriving out deuterating rate of DKDP crystal sample .
Owner:FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI

A kind of polyglycolic acid-polycaprolactone film and its preparation method and use

The invention discloses a polyglycolic acid-polycaprolactone film, which consists of 5-15 parts of polyglycolic acid and 85-95 parts of polycaprolactone in parts by weight; 10 to 200 μm particles, the molecular weight of the polyglycolic acid is 9 to 110,000, the molecular weight of the polycaprolactone is 100,000 to 200,000, and the thickness of the polyglycolic acid-polycaprolactone film is 10 ~ 200 μm; the polyglycolic acid-polycaprolactone film of the present invention is a non-porous dense film in the early stage of implantation, which can isolate the postoperative tissue. Because polyglycolic acid has a faster degradation rate than polycaprolactone, it Micropores can be obtained with the degradation of polyglycolic acid after being implanted into the human body. On the one hand, the appearance of micropores accelerates the breaking and degradation of the material. On the other hand, the film after the appearance of micropores can still maintain the original shape, ensuring The effective isolation function of the film shortens the retention time of the film in the human body and reduces the risk of complications; the preparation method of the polyglycolic acid-polycaprolactone film of the present invention has fewer steps and fewer processes, and is easy to realize industrial production.
Owner:SHANDONG ACADEMY OF PHARMACEUTICAL SCIENCES

Compound lonicera and forsythia ammonia-sensitive capsules and preparation technology thereof

The invention discloses compound lonicera and forsythia ammonia-sensitive capsules. The capsules comprise polyacrylic resin II, vitamin C, citric acid, paracetamol, chlorpheniramine maleate, dry lonicera and forsythia paste, starch, weeping forsythia volatile oil, schizonepeta volatile oil, mint oil and beta cyclodextrin. The invention also discloses a preparation technology for the capsules. The technology comprises the following steps of: (A), preparing the dry lonicera and forsythia paste; (B), weighing raw materials; (C), dissolving the polyacrylic resin II; (D), coating the vitamin C and the citric acid with resin liquid; (E), coating the paracetamol with the resin liquid; (F), mixing the chlorpheniramine maleate, the dry lonicera and forsythia paste and the starch; (G), coating the weeping forsythia volatile oil, the schizonepeta volatile oil and the mint oil with the beta cyclodextrin; and (H), putting the obtained fine powder into a mixer, adding the coated weeping forsythia volatile oil, schizonepeta volatile oil and mint oil, mixing and packing. The invention has the advantages that stable content of the raw materials is ensured, the validity period of the capsules is prolonged, the production efficiency is improved, the quality performance of the capsules is stable, and the yield of the capsules is improved.
Owner:四川彩虹制药有限公司

Counterweight telescopic oil-containing waste gas filtering equipment

InactiveCN112354288AImprove processing efficiencyRealize the effect of automatic cleaning and degreasingDispersed particle filtrationTransportation and packagingBristleExhaust fumes
The invention discloses counterweight telescopic oil-containing waste gas filtering equipment, and belongs to the field of waste gas treatment. According to the counterweight telescopic oil-containingwaste gas filtering equipment, during waste gas treatment, rotation of a plurality of interlayer self-cleaning filter plates is controlled, counterweight telescopic brushes can automatically enter and exit from the interlayer self-cleaning filter plates under the action of self gravity, and the effect of automatically washing and degreasing the interlayer self-cleaning filter plate is achieved; meanwhile, in the position changing process, the multiple movable transfer balls continuously transfer the positions, on one hand, the counterweight telescopic brush is assisted to enter and exit fromthe interlayer self-cleaning filter plate, and on the other hand, the movable transfer balls can adsorb part of the oil stain decomposing agent and cooperate with continuous movement of the movable transfer balls, and can continuously collide with the self-reminding brush bristles in the movable brush rod so that an oil stain decomposing agent adsorbed by the self-reminding brush bristles is transferred to the self-reminding brush bristles, the cleaning capacity and efficiency of the self-reminding brush bristles on oil stains on the interlayer self-cleaning filter plate are improved, the manual cleaning frequency of the interlayer self-cleaning filter plate is reduced, and the waste gas treatment efficiency is improved.
Owner:潘玉霞
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