31results about How to "Easy for large-scale industrial production" patented technology

The invention relates to a metal titanium surface titanium oxide nanowire film and the preparation method. The component of the prepared film can be titanate, titanic acid or titanium dioxide, the diameter of the nanowire is between 10nm to 100nm, the nanowires are interlaced and winded to form a great amount of large holes and mesopore networks, and the pore space is between 20nm to 500nm. The main procedures of the preparation method are: firstly, pickling cleaning of the metal titanium surface; secondly, mixed oxidizing solution of strong alkali and oxydol is used to oxidize the metal titanium surface and to form the titanate nanowire film; thirdly, acid soaking is adopted to exchange alkaline metal ions to form the titanic acid nanowire film; fourthly, the titanium dioxide nanowire film is formed through high temperature torrefying. The preparation method of the metal titanium surface titanium oxide nanowire film of the invention is simple, the cost is low, the method is suitable for large-scale industrial production, and the prepared titanium oxide has the application prospect in photochemical catalysis related field and the electrochemistry sensing related field.

A superfine Mn3O4 powder as the high-quality magnetic material with large specific surface area, controlled granularity and high magnetic and catalytic performance is prepared through dissolving the potassium permanganate in the aqueous solution of sodium hydroxide, adding cyclohexanone, stirring, hydrothermal reaction, natural cooling, pump-filtering, washing with distilled water and drying.

The invention provides a lithium iron phosphate with high compact density and a preparation method thereof. The lithium iron phosphate positive electrode material comprise large particles of lithium iron phosphate and small particle of lithium iron phosphate, wherein that small particles of lithium iron phosphate are filled in the voids between the large particle of lithium iron phosphate, and theshape of the small particles of lithium iron phosphate comprises a spherical shape. A method for prepare that lithium iron phosphate precursor comprises sinter the lithium iron phosphate precursor ina protective gas atmosphere, wherein the sintering is three-stage sintering, the sintering temperature of the three-stage sintering is sequentially increased, and aft the three-stage sintering is finished, the lithium iron phosphate positive electrode material is obtained; Wherein the shape of the lithium iron phosphate precursor comprises a spherical shape. The compaction density of the lithiumiron phosphate with high compaction density provided by the invention can reach 2.7 g / cm3, the electrochemical performance is excellent, the first discharge specific capacity of 1C can reach 150 mAh / g, and the capacity retention rate of 50 cycles of 1C can reach 99.9%.

The invention discloses a modified soy protein foaming agent for concrete. The foaming agent consists of the following raw materials, by weight: 10-15 parts of a modified soy protein powder, 1-5 parts of hexadecyl trimethyl ammonium bromide, 1-5 parts of sodium dodecyl benzene sulfonate, 1-3 parts of rhamnolipid, 1-5 parts of Arabia gum, 1-5 parts of carrageenan, 0.1-1 part of hydrogen peroxide, 0.05-0.2 part of protease solution and 100-150 parts of water. The modified soy protein foaming agent for concrete provided by the invention can effectively improve the foaming capacity, foam stability, concrete compatibility, and various performances of the foam concrete, and provide technical support for preparation of novel wall material. The invention has advantages of simple product preparation process, low production cost, simple foaming process, high foaming rate of the foaming agent and good foam stability.

The invention belongs to the technical field of preparing and processing additives, and discloses a walnut green seedcase phenol natural antioxidant and a preparing method and application thereof. The preparing method includes the steps that fresh walnut green seedcase is used as a raw material, selected, washed, dried, broken, extracted through ultrasound and microwave synergic assistance, filtered with a millipore filtering film, purified with macroporous resin, and freeze-dried in vacuum to obtain the walnut green seedcase phenol natural antioxidant. The phenol content in the obtained product is 85.25% or more, and the antioxidant activity retention rate is 95% or more. The prepared phenol antioxidant product is natural and nontoxic, has higher free radical scavenging capacity and antioxidant activity than Vc and BHT and can be widely used in the fields of food, healthcare products, medicine, cosmetics and daily necessities.

The invention relates to a one-step RT-PCR (Reverse Transcription Polymerase Chain Reaction) detection reagent kit for Cucumber green mottle mosaic virus and a detection method thereof. The reagent kit comprises the following various agents for a one-step RT-PRC reaction: an upstream primer of Cucumber green mottle mosaic virus, a downstream primer of Cucumber green mottle mosaic virus, a PCR Buffer, Mgc12, dNTPs, an RNA enzyme inhibitor, a reverse transcriptase, a DNA polymerase, positive control containing Cucumber green mottle mosaic virus and negative control containing no Cucumber green mottle mosaic virus and RNase-free ddH2O. The invention has the advantages of simple preparation method and convenient large-scale industrialized production, and the detection method has the advantages of simple and convenient operation, high sensitivity, strong specificity and good accuracy. The whole detection process is accomplished in a PCR tube and suitable for rapid detection of a batch of samples, thereby simplifying the operation procedure, reducing the detection time, avoiding the cross contamination, and improving the detection efficiency.

The invention belongs to the technical field of biology, in particular relates to the technical field of biomedicine and in particular relates to a cell culture method for enabling human somatic cells to perform reversion differentiation for producing human blood derived auto-retina stem cells as well as a kit and application. The preparation method comprises the following steps: taking somatic cells as raw cells, sequentially culturing the raw cells through a cell culture solution A1, a cell culture solution A2 and a cell culture solution A3, thereby obtaining the blood derived auto-retina stem cells. The human blood cells serve as the raw cells, and the raw cells are subjected to reversion differentiation so as to produce the human blood derived auto-retina stem cells. A cell culture solution formula composed of small molecular substances is used, and the human blood cells are rapidly subjected to reversion differentiation so as to produce the human blood derived auto-retina stem cells under the conditions that the human somatic chromosome DNA sequence is not changed and any foreign gene or DNA fragment is not inserted. The production speed, yield and purity in the invention are obviously superior to those in the prior art.

The invention provides a highly oriented cellulose aerogel and a preparation method thereof and relates to the field of high molecular functional materials. The preparation method of the highly oriented cellulose aerogel comprises the following steps: (a) adding a chemical crosslinking agent into a cellulose solution for chemical crosslinking to obtain a chemical crosslinked cellulose hydrogel; and (b) carrying out pre-traction and alcohol solution replacement on the chemical crosslinked cellulose hydrogel and drying the hydrogel to obtain the highly oriented cellulose aerogel. The highly oriented cellulose aerogel solves the technical problem that a transparent cellulose aerogel with a highly oriented nanofiber structure cannot be prepared by a conventional preparation method. The preparation method of the highly oriented cellulose aerogel adopts an alcohol coagulating bath to freeze and orientate and replace the hydrogel with an alcohol gel, so that the replacement time is shortenedgreatly and the alcohol usage is reduced greatly, and the preparation efficiency of the hydrogel is improved.

The invention discloses oily powder paste with thixotropy and a preparation method of the oily powder paste. The method comprises the steps as follows: the surface of inorganic toner powder is coatedwith aluminum hydroxide through wet processing, the surface of the powder coated with aluminum hydroxide is coated with an organic matter treating agent I and an organic matter treating agent II respectively through wet processing, then, the powder is uniformly stirred with oil and a dispersant, grinding and dispersion are performed, and the oily powder paste with thixotropy is prepared. The powder paste has the advantages of no fluidity during storage, low oily powder separation risk, stirring fluidity during usage, capability of realizing addition by pouring and being uniformly mixed with asystem through low-speed stirring and the like and can be used as a raw material for preparing foundation such as liquid foundation and blusher as well as makeup products.

The invention discloses a modified soy protein foaming agent for concrete. The foaming agent consists of the following raw materials, by weight: 10-15 parts of a modified soy protein powder, 1-5 parts of hexadecyl trimethyl ammonium bromide, 1-5 parts of sodium dodecyl benzene sulfonate, 1-3 parts of rhamnolipid, 1-5 parts of Arabia gum, 1-5 parts of carrageenan, 0.1-1 part of hydrogen peroxide, 0.05-0.2 part of protease solution and 100-150 parts of water. The modified soy protein foaming agent for concrete provided by the invention can effectively improve the foaming capacity, foam stability, concrete compatibility, and various performances of the foam concrete, and provide technical support for preparation of novel wall material. The invention has advantages of simple product preparation process, low production cost, simple foaming process, high foaming rate of the foaming agent and good foam stability.

The invention discloses a hydrogen storage electrode alloy for a Ni-MH secondary battery and a preparation method thereof. The hydrogen storage electrode alloy has a chemical formula of RE1-xMgxTiyNizAlmSin, wherein x is more than or equal to 0.2 and less than or equal to 0.3; y is more than or equal to 0.02 and less than or equal to 0.08; z is more than or equal to 3.0 and less than or equal to 3.5; m is more than or equal to 0.05 and less than or equal to 0.15. In addition to lanthanum, the rare earth elements also contain at least one out of samarium, yttrium, neodymium and praseodymium. The preparation method comprises the following steps: adopting induction heating and smelting under inert gas shielding, directly injecting the molten alloy into a water-cooled copper mold, performing furnace cooling to room temperature under inert gas shielding to obtain an alloy ingot, and uniformly annealing in a vacuum heat treatment furnace. Titanium and silicon are added into the alloy, so that the corrosion resistance of the alloy is improved, and the electrochemical cycling stability of the alloy is improved. The rare earth elements are fully utilized, so that the alloy has high comprehensive electrochemical properties. The preparation process of the alloy is easy to master and suitable for large-scale production.

The invention provides an anti-rust and weather-resistant brush-coating macromolecular material as well as a preparation method and the application thereof, and relates to the technical field of an anti-rust macromolecular material. The anti-rust and weather-resistant brush-coating macromolecular material comprises the following raw materials in parts by mass: 70 to 130 parts of 107 silicon rubber, 10 to 30 parts of a nano-silicon powder, 0.5 to 2 parts of a first silane coupling agent, 0.3 to 1.5 parts of a second silane coupling agent, 1 to 5 parts of ethyl silicate and 0.2 to 1 part of organic tin. The technical problems that the traditional brush-coating material has a low fireproof property, a weather resistance and waterproof property, has probability of peeling off, cracking and falling off, has short service life and high cost, is toxic and not environmentally-friendly, and is complex in construction process and difficult in construction are solved. The anti-rust and weather-resistant brush-coating macromolecular material provided by the invention has a high anti-rust property, a fireproof property, weather resistance and a waterproof property, has low probability of peeling, cracking and falling off under various severe environments, is long in service life, non-toxic, environmentally-friendly, low in cost and simple in manufacturing method, can perform brush-coating with rust, is easy to construct and has a good future application prospect.

The invention provides a platycodon pickle and a making process and application thereof, and relates to the technical field of pickles. The platycodon pickle comprises, by mass, 400-600 parts of platycodon, 10-30 parts of pickle salt, 5-20 parts of antioxidant plant extract, 5-35 parts of lactic acid bacteria and 800-1200 parts of water. The pickle solves the technical problems of uncontrollable fermentation results, long production cycle, unstable product quality, weak antioxidant activity and high nitrite content of the traditional natural fermentation platycodon pickle. In the making process of the platycodon pickle, an antioxidant plant extract and lactic acid bacteria are manually added, the product quality is high, the antioxidant activity is high, the nitrite content is low, the fermentation process is easy to control, and the fermentation time is short. At the same time, the making process of the platycodon pickle is simple, easy to operate, easy to produce in large scale and good in application prospects.

The invention relates to a preparation method of a polycondensation catalyst, the polycondensation catalyst prepared by the preparation method, and a method used for preparing PBS and PBS copolymer by using the polycondensation catalyst. According to the preparation method, on the one hand, activity of titanium is controlled, and dosage of titanium is reduced by taking advantage of coordination effect of a surfactant compound, and controlling hydrolysis speed of titanium silicon; and on the other hand, catalytic action of the catalyst on side reaction of polycondensation and thermal oxidative degradation is inhibited for a certain degree, and physical and mechanical properties and the color of polyester products are improved by controlling the surfactant compound and active center titanium.

The invention provides a high-efficiency low-temperature honeycomb type SCR denitration catalyst and a preparation method thereof. The preparation method includes the steps that precursor materials of the catalyst are completely mixed to obtain mixed pug, the mixed pug is sequentially subjected to extrusion molding, drying and roasting, and the efficient low-temperature honeycomb type SCR denitration catalyst is prepared; according to the present invention, the process conditions are simple, the high NOx removal rate can be achieved in the sulfur-containing waste gas environment at the low temperature range of 180-280 DEG C, and the large-scale industrial production is easily achieved.

The invention relates to a metal titanium surface titanium oxide nano-wire film and a preparation method thereof. The component of the prepared film can be titanate, titanic acid or titanium dioxide, the diameter of each nano-wire is between 10 nm to 100 nm, the nano-wires are interlaced and wound to form a great amount of large holes and mesopore networks, and the pore space is between 20 nm to 500 nm. The preparation method comprises the following main steps: firstly, pickling cleaning is performed to the metal titanium surface; secondly, a mixed oxidizing solution of strong alkali and oxydol is used to oxidize the metal titanium surface and form the titanate nano-wire film; thirdly, acid soaking is adopted to exchange alkaline metal ions to form the titanic acid nano-wire film; and fourthly, the titanium dioxide nano-wire film is formed through high temperature roasting. The invention has the advantages that the preparation method of the metal titanium surface titanium oxide nano-wire film is simple, the cost is low, the method is suitable for large-scale industrial production, and the prepared titanium oxide has broad application prospect in photochemical catalysis related field and the electrochemistry sensing related field.

The invention discloses a pea protein concrete foaming agent and a preparation method thereof. The preparation method is characterized by comprising the steps of: mixing 10 weight parts of pea protein, 0.1 to 1 weight part of papain and 200 weight parts of water, carrying out hydrolysis reaction for 0.5 to 24 hours under the temperature of 10 DEG C to 100 DEG C, deactivating enzyme, and filtering, wherein filtering liquid is a prepared mother solution of the pea protein concrete foaming agent; and uniformly mixing 30 to 200 weight parts of the mother solution of the pea protein concrete foaming agent, 1 to 10 weight parts of stabilizing agent, 1 to 10 weight parts of dispersing agent, 0.1 to 5 weight parts of preservative according to weight proportion to prepare the pea protein concrete foaming agent. The preparation method disclosed by the invention has advantages of readily available raw materials, low production cost, and favorable environmental friendliness, and is easy for realizing large-scale industrial production. A foaming process is simple, and the pea protein concrete foaming agent can efficiently enhance the foaming capacity, foaming stability and concrete consistencyand also efficiently enhance various performances of foaming concrete.

The present invention relates to a Cu-based catalyst, a preparation process thereof and its use as the dehydrogenation catalyst in producing a hydroxyketone compound such as acetoin. Said Cu-based catalyst contains copper, at least one auxiliary metal selected from metal of Group IIA, non-noble metal of Group VIII, metal of Group VIB, metal of Group VIIB, metal of Group IIB and lanthanide metal of periodic table of elements, and an alkali metal, and further contains at least one ketone additive selected from a ketone represented by formula (II) and a ketone represented by formula (II′). Said Cu-based catalyst shows a high the acetoin selectivity as the dehydrogenation catalyst for producing acetoin.R1-C(═O)—CH(OH)—R2  (II)R1-C(═O)—CH(═O)—R2  (II′)In formulae (II) and (II′), each group is defined as in the description.

The invention provides a seabuckthorn feed additive, a seabuckthorn feed and preparation methods as well as application thereof, and relates to the field of livestock and poultry feeds. The seabuckthorn feed additive is prepared from the following raw materials in parts by mass: 10-40 parts of seabuckthorn seed meal, and 2-8 parts of biotin. The seabuckthorn feed additive relieves the technical problem of influence on normal growth and development of animals due to biotin lack, incomplete nutrients or unstable biotin content and low utilization rate of traditional feeds. The seabuckthorn feedadditive provided by the invention is rich in nutrients, stable in biotin content, high in utilization rate, convenient to use, time-saving and labor-saving when being used for breeding, and low in cost; moreover, the seabuckthorn feed additive is also capable of effectively promoting growth and development of livestock and poultry as well as preventing and treating diseases of the livestock and poultry, including dermatitis, foot diseases and the like. Thus, the seabuckthorn feed additive has good application prospects.

The invention relates to the technical field of separation and purification, in particular to a method for extracting L-4-hydroxyisoleucine from fermentation catalyst liquid. The steps of micro-filtration membrane filtering, super-filtration membrane filtering, ion exchange and the like are used for purifying and separating the L-4-hydroxyisoleucine in the L-4-hydroxyisoleucine fermentation catalyst liquid; the extraction system is simple and efficient; the flow process is simple; the implementation is easy; 732 cation resin adsorption is performed on filtration membrane clear liquid; ammoniawater with the ammonia content being 1.2 to 1.5 weight percent is used for elution; the ammonia salt content in the finished product can be reduced; the purity is improved; the alcohol sedimentation is used in primary crystallization; the yield of the primary coarse product can be improved by 50 percent or higher; in secondary crystallization, the alcohol sedimentation is used, the yield of a finished product can be improved by 50 percent or higher; in addition, the product liquid phase purity can be obviously improved; the final product total yield can reach 50 percent; the product purity isnot less than 95 percent. The method has the advantages that the efficiency is high; the cost is low; the large-scale industrial production is easy.

The invention provides a polymer fire-proof and moisture-proof sealing agent and its preparation method and application, and relates to the technical field of fire-proof and moisture-proof sealing materials. The polymer fire-proof and moisture-proof sealing agent includes the following raw materials in parts by mass: vinyl 80-120 parts of silicone oil, 0.3-0.5 parts of the first silane coupling agent, 0.3-1.2 parts of the second silane coupling agent, 2-5 parts of platinum complex and 1-3 parts of hydrogen-containing silicone oil solve the problem of traditional plugging The material is easy to crack, the fireproof and moistureproof effect is poor, the fluidity is weak, the leveling effect is poor, and the technical problems of secondary construction are difficult. The polymer fireproof and moistureproof sealing agent provided by the invention not only has excellent fireproofness, moistureproofness and fluidity And water repellency, it can block the cable gap in all directions without dead ends and achieve excellent fireproof, moistureproof and small animal effects, and it has no corrosion to contact cables and box materials, has certain flexibility, and is easy for secondary construction , the weather resistance will remain unchanged for 20 years, and the blocked parts can be used again. The application market is huge and the prospect is good.

The invention provides a highly oriented cellulose airgel and a preparation method thereof, and relates to the field of polymer functional materials. The preparation method of the highly oriented cellulose aerogel comprises the following steps: (a) adding Chemical cross-linking agent, chemical cross-linking, to obtain chemical cross-linked cellulose hydrogel; (b) pre-stretching and alcohol solution replacement of chemical cross-linked cellulose hydrogel, drying, to obtain highly oriented cellulose airgel The material solves the technical problem that the traditional preparation method cannot prepare highly oriented nanofiber structure and transparent cellulose airgel. The preparation method of the highly oriented cellulose airgel provided by the invention uses an alcohol coagulation bath to freeze the orientation, and at the same time The replacement of hydrogel with alcohol gel greatly reduces the replacement time and alcohol consumption, and improves the preparation efficiency of airgel.

The invention provides a Campanulaceae kimchi and a production process and application thereof, and relates to the technical field of pickles. The Campanulaceae Kimchi comprises the following raw materials in parts by mass: 400-600 parts of Campanulaceae, 10-30 parts of kimchi salt, antioxidant plants 5-20 parts of extract, 5-35 parts of lactic acid bacteria and 800-1200 parts of water, solve the problems of uncontrollable fermentation results, long production cycle, unstable product quality, weak antioxidant activity and nitrite content of traditional natural fermentation of Campanula kimchi High technical problem, the platycodon kimchi provided by the present invention not only has high product quality, strong antioxidant activity, low nitrite content, but also easy to control fermentation process, fermentation time At the same time, the production process of platycodon kimchi is simple, the operation is simple, the large-scale industrial production is easy, and the application prospect is good.

The invention belongs to the technical field of metal material and preparation thereof, and more particularly relates to a hydrogen storage alloy for a Re-Mg-Ni type metal hydride secondary battery and a preparation method thereof. The hydrogen storage alloy has the chemical composition of A(1-x) Mgx Niy Siz, wherein x, y and z are atomic numbers, x is more than or equal to 0.2 and less than or equal to 0.4, y is more than or equal to 3.0 and less than or equal to 3.6, and z is more than or equal to 0.05 and less than or equal to 0.20; A is rare earth element Re or calcium, and the rare earthelement Re is at least one selected from lanthanum, cerium, praseodymium, neodymium and yttrium. The key points of the preparation method are as follows: smelting is carried out in an induction furnace under the inert gas protective atmosphere; the raw materials are cast after being completely melted under the inert atmosphere, and cooled along with the furnace to room temperature under the inertgas atmosphere, so that as-cast alloy ingots can be obtained; the inert gas is one of argon, helium, neon, radon and xenon; and heat treatment step is vacuum annealing carried out in a vacuum heat treatment furnace. The method is simple and easy to produce the hydrogen storage alloy for the Re-Mg-Ni type metal hydride secondary battery in a way of large-scale industrialization, and the hydrogen storage alloy has high capacity and long service life.

The invention discloses a hydrogen storage electrode alloy for a Ni-MH secondary battery and a preparation method thereof. The chemical formula is: RE1-xMgxTiyNizAlmSin; m≤0.15, 0.05≤n≤0.15. In addition to lanthanum, rare earth elements must also contain at least one of samarium, yttrium, neodymium, and praseodymium. The preparation method is to adopt induction heating and smelting under the protection of inert gas, inject the molten alloy directly into a water-cooled copper mold, and cool down to room temperature with the furnace under the protection of inert gas to obtain alloy ingots, which are uniformly annealed in a vacuum heat treatment furnace; in the alloy of the present invention Add titanium and silicon to improve the corrosion resistance of the alloy and improve the electrochemical cycle stability of the alloy. Make full use of rare earth elements, so that the alloy has good comprehensive electrochemical performance. The preparation process of the alloy is easy to master and is suitable for large-scale production.

The invention relates to an electrically exfoliated graphene silicon carbon composite material. A preparation method comprises the following steps: mixing electrically exfoliated graphene, a silicon-based material and a saccharide material according to a certain ratio, and then carrying out ball milling; carrying out spray drying granulation on the ball-milled product; and carrying out high-temperature calcination on the spray-dried product in an inert atmosphere to obtain a final product. The electrically exfoliated graphene silicon carbon composite material is prepared by the preparation method. The invention also discloses an application of the electrically exfoliated graphene silicon carbon composite material in a lithium ion battery. The electrically exfoliated graphene silicon-carbon composite material has the beneficial effects that the electrically exfoliated graphene is compounded with the silicon-based material and the saccharide material to synthesize the electrically exfoliated graphene silicon-carbon composite material with excellent cycle performance, that is, the electrically exfoliated graphene silicon-carbon composite material contains the electrically exfoliated graphene, and the content of the electrically exfoliated graphene can reach 20%; and the adopted method is high in efficiency, the production process is simple and easy to control, and large-scale production is easy.