81results about How to "Rapid phase separation" patented technology

Laboratory Automated System and method for specimen processing, comprising several Clinical and Biological Analytical Modules is provided. The Module consists of coupling centrifuge, analyzers and robot. System produces rapid phase separation, cap removing and testing in one sequential, unbroken process. Several multi-item carriers for tubes and microplates loading provided.

The invention relates to a method of preparing high pure copper from the leachate of primary sulfide ore bacteria, including: it leaches the primary sulfide ores and its mixture by using the mixture of middle and mesophilic bacterias. It filters and extracts the bacterial leaching solution, and conducts thin-layer wash-condensate, coalescence phase, and back-extraction electrowinning for the organic phase load. The invention uses hybrid strains of bacteria and sub-culture techniques to enhance the synergy of the bacterial leaching role and the minerals leaching rate, uses gelatin and other additives without sulfur element to reduce the sulfur impurities.

The invention relates to a method for manufacturing medium-temperature Longquan powder celadon. In the method, a green body and a glaze are mixed with common mineral materials and chemical materials in specific ratios, calcined zinc oxide and calcined talcum are added in the glaze, the Longquan powder celadon is fired at 1,220 to 1,240 DEG C at one time, the problems of high production cost, serious environmental pollution and the like, which are caused by high firing temperature and large energy consumption, of the conventional powder celadon production are solved, the jade textural quality of medium-temperature powder greenish glaze is strengthened.

The invention relates to an aqueous two-phase separation method for total flavonoids, saponins and polysaccharides in astragalus. The method comprises the following steps of smashing an astragalus medicinal material; adding a solvent and performing solid-liquid extraction; filtering and removing impurities to obtain crude extract of the total flavonoids and the saponins of the astragalus; taking and concentrating the crude extract of the astragalus; adding an aqueous two-phase system formed by absolute ethyl alcohol / dipotassium hydrogen phosphate, adding water to make the total amount of the system be a constant value; mixing uniformly and standing, wherein the aqueous two-phase system is divided into an upper phase and a lower phase; taking an ethanol phase which contains a large amount of total flavonoids and saponins of the astragalus out; and concentrating the ethanol phase under a reduced pressure to obtain the extract of the total flavonoids of the astragalus. The method has the beneficial effects that the extraction rate of the total flavonoids and the total saponins of the astragalus; simultaneously the total flavonoids and the total saponins can be separated from the polysaccharides of the astragalus in the crude extract; the used solvent is low in toxicity, favorable to environment friendliness and low in cost; the inactivation or the denaturation of the flavonoids and the saponins of the astragalus cannot be caused; the phase separation time is short; the interfacial tension is low; and residual organic solvent does not exist.

The invention discloses a process of directly reducing liquid high lead slag in reducing furnace, secondary lead-containing materials such as the liquid high lead slag, lead concentrate, scrap leads, waste accumulators and the like generated from the oxygen bottom blowing smelting furnace or zinc leaching residues are used as raw materials and are added from the top end of the reducing furnace; coal powder and natural gas used as fuel and oxygen-enriched air used as combustion improver are continuously led in from the top of the reducing furnace to carry out combustion reaction; the temperature in the reducing furnace is kept at 1000-1500 DEG C; the coal powder and natural gas can be simultaneously used as reducing agents and fall into the reaction tank at the bottom of the reducing furnace after being fully mixed with the raw materials; the lead oxides in the raw materials are reduced to crude lead and the addition of the reducing agents is subject to full reduction of the lead oxides in the raw materials. The process of the invention directly reduces the liquid high lead slag, fully utilizes the thermal energy of the high lead slag and further reduces the coke consumption and flue gas volume, thereby dramatically reducing the smoke dust rate and the smelting cost.

The invention relates to a solid-liquid enrichment separation method for tobacco sheet wastewater in a paper-making method. Nicotine and other components in the wastewater are enriched to a solid phase for separation, wherein the COD removal rate in single-stage separation can reach 70-80 percent; and then a biomedical forced aerobic method or anaerobic / aerobic method are adopted to treat, reuse or discharge the treated water, and the sludge solid can be reused. The solid-liquid enrichment separation method comprises the following steps: blocking slag by grilling; performing coagulation and enrichment reaction; settling; performing subsequent treatment clear water on an upper layer; concentrating sludge solid, and other steps. The solid-liquid enrichment separation method has the advantages that: the prepared calcium-magnesium compound coagulants are easily prepared and can be prepared into quality-grading formulations aiming at fluctuation of the wastewater; the obtained sludge solidobtained by separation is rich in nicotine and other components which can be subsequently extracted as active ingredients of biogenic pesticides; the extracted dry soil powder can be totally used as loading agents of powder pesticides; and special treatment facilities and equipment are unnecessarily used, and the investment and operating cost of biochemical facilities can be reduced simultaneously.

The invention relates to a method for fractionating, extracting and separating zirconium and hafnium, in particular to a method for fractionating, extracting and separating zirconium and hafnium by using di(2-ethylhexyl)phosphorous acid as an extracting agent. The method comprises the following steps of: (1) extraction, using 50-300 parts by weight of di(2-ethylhexyl)phosphorous acid, 25-150 parts by weight of mixing alcohol with the carbon number of 7-9, and 550-925 parts by weight of sulfonated kerosene to prepare a di(2-ethylhexyl)phosphorous acid organic phase to extract; (2) washing, adding oxalic acid into a sulphuric acid solution to prepare a washing solution to wash; and (3) stripping, using a mixing solution of ammonia and carbonate as a strip liquor, stripping to obtain a strip liquor containing hafnium, slowly adding concentrated hydrochloric acid to adjust the solution into acidity, adding concentrated ammonia to obtain hafnium hydroxide precipitate, washing, filtering, calcining, and then obtaining hafnium oxide. The used chemical agents are difficult to volatilize, the toxicity is low, the corrosion is weak, the disposition is easy, and the discharged waste water can not cause the environments to be polluted. The technology has the advantages of quick phase separation, convenient operation, and high and stable product quality.

The invention relates to a method for enriching and separating flavones in cedrela sinensis leaves by an aqueous two-phase system, the cedrela sinensis leaves are firstly dried and crushed, crude extract liquid of the cedrela sinensis leaves is obtained after reflux extraction and impurity removal, ammonium sulfate and ethanol are added according to the proportion after concentration, heating and the even mixing are carried out, thereby being split into upper and lower phases; the flavones are mainly distributed in the upper phase containing the ethanol and further concentrated and purified. The lower phase is cooled, crystallized and filtered after splitting the upper and the lower phases, ammonium sulfate crystals are recovered; anhydrous ethanol is added in the upper phase liquid for precipitating, removing the ammonium sulfate and other residual impurities and then recovering the ethanol, and a product is obtained by vacuum drying the concentrated liquid. The method has the advantages of rapid phase split, integrated process and improves the concentration and purity of the flavones in the upper phase; the material consumption is reduced, the toxicity is small, the ethanol and the ammonium sulfate are easy to be recovered and utilized; the recovery rate of the flavones in the cedrela sinensis leaves is high, the production method is simple, easy to master and not affected by the environment; the cost is low, and the method is applicable to industrial production.

The invention provides an aqueous two-phase extraction system formed by anion / cation mixed surfactant which is induced by fluoroalcohol, a preparation method and an application thereof. The aqueous two-phase extraction system comprises anion surfactant sodium dodecyl sulfate, cation surfactant hexadecyl trimethyl ammonium bromide, hexafluoroisopropanol and water. The extraction system has short phase forming time, wide phase forming range, gentle and simple phase forming condition, low consumption and high efficiency, so the extraction system is a novel extraction system. The invention can extract and separate different types of compounds through the phase forming conditions of the system, so the application prospect is good.

The invention belongs to the technical field of medicines, and relates to a two-aqueous-phase method for extracting total saponin from bittersweet herb. The Two-aqueous-phase method for extracting total saponin from bittersweet herb is characterized by comprising the following steps of: pulverizing bittersweet herb, adding to a solvent, carrying out solid-liquid digestion and then filtering for impurity removal to obtain a coarse extract of the bittersweet herb; concentrating the coarse extract of the bittersweet herb to 1 / 5 of the original volume, adding to a two-aqueous-phase system formed from absolute ethyl alcohol / ammonium sulfate, adding water to ensure that the total amount of the system is a certain value, uniformly mixing and then standing to form an upper phase and a lower phase; and taking out the absolute ethyl alcohol phase containing a great amount of total saponin of the bittersweet herb, and then carrying out pressure-reduction concentration on the absolute ethyl alcohol phase obtain a total saponin extractive of the bittersweet herb. The two-aqueous phase method has the beneficial effects that the extraction rate of the total saponin of the bittersweet herb is improved; as the used solvent has low toxicity, the method is beneficial to environmental protection; and simultaneously the method has convenience and economy.

The invention provides a preparation method of a microcapsule for preparing a temperature-adjusting textile product. The preparation method comprises the following steps: mixing mixed liquid of sodium alginate and calcium carbonate, paraffin and a water-oil composite emulsifying agent, and performing emulsifying reaction to obtain oil-in-water emulsion; mixing the obtained oil-in-water emulsion, petroleum ether and an acidic solvent, and performing curing reaction to obtain a primary microcapsule; performing condensation reaction on the obtained primary microcapsule and a chitosan acidic solution to obtain the microcapsule for coating the surface of the textile product. Results of embodiments show that after the temperature-adjusting textile product, of which the surface is coated with the microcapsule prepared by the method, is washed with water for 1 to 5 times, the mass loss rate is lower than 5 percent, so that the firmness of a phase-change material and a base fabric is high.

The invention discloses a method for ionic liquid aqueous two-phase extraction of flavones and saponins in songaria cynomorium herb. The method comprises the following steps: (1) pretreatment of the songaria cynomorium herb; (2) ultrasonic crude extraction; (3) aqueous two-phase extraction, namely utilizing an ionic liquid / salt aqueous two-phase system to perform extraction; (4) back extraction; (5) vacuum distillation and vacuum drying; (6) recovery of ionic liquid. The method for ionic liquid aqueous two-phase extraction of the flavones and the saponins in the songaria cynomorium herb, disclosed by the invention, has the advantages of simple method, easiness in operation, fast phase splitting, high extraction rate, no need of volatile organic solvents, low environmental pollution and effects of recycling an extraction solution of an extraction system, saving resources, realizing relatively high selectivity and specificity, simultaneously extracting the flavones and the saponins in the songaria cynomorium herb, effectively avoiding the waste of the resources caused by single component extraction, effectively improving the extraction rate of the flavones and the saponins in the songaria cynomorium herb and the comprehensive utilization rate of the songaria cynomorium herb and reducing the deep processing cost of the songaria cynomorium herb.

The invention discloses a method for separating palladium and copper from a solution containing copper, cobalt and nickel. The method employs acylthiourea as an extractant and melted wax as a diluent, Pd and Cu in the copper cobalt nickel palladium system can be selectively separated with a high recovery rate (the recovery rate of Pd and Cu can reach 99.9%) by controlling an acidity of copper cobalt nickel palladium system. According to the invention, the method for extracting palladium has the advantages of short balance time, high enrichment degree and fast phase-splitting; palladium and copper can be continuously extracted and separated from an acidic aqueous solution containing palladium at a time. The extractant enables a recycling use, and has small harm on environment, which has significant meaning for improving the recovery rate of non-ferrous smelting of the precious metals.

The invention discloses a ceramic bonding agent, a preparation method thereof and an application in a CBN grinding wheel, wherein the ceramic bonding agent is prepared from the following components inparts by weight: 41.0 to 44.5 parts quartz, 4.0 to 5.5 parts of alumina, 19.0 to 21.0 parts of boric acid, 3.0 to 5.0 parts of zinc oxide, 6.0 to 8.0 parts of lithium carbonate, 2.5 to 3.5 parts of sodium carbonate, 15.0 to 17.5 parts of barium carbonate, 2.0 to 3.5 parts of strontium carbonate. The preparation method of the ceramic bonding agent comprises the following steps: material preparation step, mixing step, melting step, water quenching step, ball milling step, particle size detection step and drying step. The ceramic bonding agent wets and coats the CBN abrasive particles well, increases the holding force of the bonding agent to the abrasive particles, and improves the strength of the bonding agent.

The invention provides a washing method of oxalic acid precipitation. The mechanism of the method comprises: acid in washing wastewater of the oxalic acid precipitation containing only inorganic acid and oxalic acid is extracted by amine extracting agent to enter organic phase to obtain purified water capable of washing the precipitation, and high concentration alkaline aqueous solution is used to directly neutralize the acid in the organic phase to make the organic phase to be reused. The method has the advantages of large treatment capacity of wastewater, fast reaction speed, rapid phasesplitting, low cost of reagents and small energy consumption, reduces the environmental pollution and recycles comprehensively water resource at the same time, reduces the discharge of wastewater greatly, increases the salinity of the discharged wastewater, reduces the difficulty of further recovery, and reduces the processing cost of wastewater greatly. The recycling of the washing wastewater of the oxalic acid precipitation reduces the impurities brought in the washing water, and improves the quality of the precipitation.

The invention discloses a method for extracting procyanidine from grape seeds by utilizing an aqueous two-phase system. The method comprises the following steps: 1) pretreating a material, namely drying grape seeds in a drying oven at the temperature of 50-80 DEG C for 18-36 hours, and grinding into powder; and 2) performing aqueous two-phase extraction, namely adding an aqueous two-phase extraction solution composed of ethanol, ammonium sulfate, distilled water and sodium chloride into a centrifugal device, adding the grape seed powder, fully mixing, centrifuging at a rotating speed of 3000-6000 revolutions per minute for 10-15 minutes, and standing for extracting, thereby obtaining procyanidine, wherein the aqueous two-phase extraction solution is composed of 30 wt%-35wt% of ethanol, 20wt%-25wt% of ammonium sulfate, 1.8 wt%-2.2wt% of sodium chloride and the balance of distilled water; and a mass ratio of the grape seed powder to the aqueous two-phase extraction solution is 1:(16-30). The method is rapid in phase separation and low in time consumption, the moisture content of the extraction system is high, an extract can be effectively prevented from being inactivated or denatured, the separation process is complete and economic and is simple in operation, and enlarged production and continuous operations are facilitated.

The invention provides a method for separating and purifying phycocyanin by means of combination of two aqueous phase extraction and ultrasonic waves. The method comprises the particular operating steps that spirulina is subjected to wall breaking through a repeated freezing and thawing method, supernatant is collected, and a crude phycocyanin extracting solution is obtained; glucan and inorganic salt two aqueous phase extraction is adopted, the crude phycocyanin extracting solution is put in ultrasonic waves for ultrasonic treatment for 15 min to 30 min, standing is conducted for 10 min to 15 min, the upper phase is taken and subjected to dialysis in a dialysis membrane with the molecular mass cut-off of 5,000 for 12 h to 20 h, freeze drying is conducted, and phycocyanin powder is obtained. The method for purifying the phycocyanin by means of combination of two aqueous phase extraction and the ultrasonic waves has the advantages of being high in selectivity and high in system phase-separation speed, operation is easy and convenient, equipment is conventional, and the method is suitable for industrial production. The phycocyanin purity of the phycocyanin powder prepared through the method reaches up to (A620 / A280) 3.78, and the total yield reaches up to 90.6%.

The invention discloses a double-water phase extracting system and a method of separating and purifying alpha-amylase inhibitor by it. And its phase forming reagents includes polyglycol and fructose-1, 6-diphosphoric metal salt that have stabilizing and protecting effect on the bioactivity of biochemical product. It applies the double-water phase system to the process of separate-extracting alpha-amylase inhibitor, uses the advantages of the double-water phase system: fast to separate phase, simple and convenient to operate and easy to amplify.

The invention discloses a method for purifying wet-process phosphoric acid by using a centrifugal extractor in the technical field of chemical production. The method mainly includes several phases ofpretreatment, extraction, washing, back extraction, desulphurization and condensation; and the main improving point is the extraction, washing and back extraction phases which adopt a centrifugal extractor. The centrifugal extractor can be used as extraction equipment which has low requirement for the phosphoric acid concentration of raw materials, only 30-40% is needed for the content of P2O5, requirements can be met by only performing simple treatment of ordinary semi-aqueous wet-process phosphoric acid without extra energy consumption, but the requirements in the prior art for the phosphoric acid concentration have to be controlled at 40-58%; extra control on the temperature of an extraction section is not needed, normal temperature reaction can be performed, the extraction rate of morethan 75% can be achieved when a phase ratio is 4 : 1, and compared with a rotating disc column, 6-8 : 1 has to be achieved; and through the centrifugal extractor, two phases can be fully mixed undera high-speed condition, so that high extraction efficiency and good split-phase effects can be realized, equivalent phase ratio with the rotating disc column can be achieved, and rapid split-phase andno entrainment can be realized.

A photochemical vapour generator is disclosed having a reaction chamber with a liquid sample inlet, a carrier gas inlet and a carrier gas outlet. A liquid sample support surface for supporting a film of a liquid sample is in the reaction chamber. A source of ultraviolet radiation is positioned in radiative contact with the liquid sample support surface. Also described is a process for detecting and / or quantifying an analyte by providing a liquid film of a sample containing an organic acid or a salt thereof and a precursor compound of the analyte, exposing the liquid film to ultraviolet radiation to generate a volatile species of the analyte, separating the volatile species from the liquid film to form a vapour containing the volatile species, and directing the vapour to a detector to detect and / or quantify the analyte in the vapour. Amalgamation of photochemical reactions with thin film generation and gas-liquid phase separation achieves the benefits of all of these principles in a single unit, providing a simple and effective way of enhancing generation of an expanded suite of elements.

The invention relates to a method for extracting flavones in Sorbus alnifolia through coupled supersonic wave-aqueous two-phase system. The method is characterized by comprising the following concrete steps: step 1) carrying out extraction and separation of flavones in Sorbus alnifolia leaves, wherein a propanol- ammonium sulfate aqueous two-phase system is used and upper-phase liquid and lower-phase liquid are obtained; step 2) subjecting the lower-phase liquid obtained in the step 1) to cooling, crystallization, filtering and recovery of ammonium sulfate crystals; and step 3) subjecting the upper-phase liquid obtained in the step 1) to purification with absolute ethyl alcohol, concentration and drying so as to obtain a finished product. The method has the advantages that phase-splitting is rapid; extraction and separation processes are integrated; the concentration and purity of the flavones in an upper phase are increased; material consumption is reduced; toxicity is low; ethanol and ammonium sulfate are easy to recycle; the recovery rate of flavones in Sorbus alnifolia leaves is high; the method is simple, easy to control, free of influence by environment, low in cost and suitable for industrial production.

A syringe device for separating liquids of different densities is provided with a hollow syringe barrel, a perforated plunger seal with a seal hole, and a hollow plunging tube with a closed bottom with at least one tube hole. The perforated plunger seal has an outer perimeter that resides flush against an interior surface of the hollow syringe barrel. The tube hole is in operational relationship with the seal hole. Optionally, a relief hole is provided on a top portion of the hollow plunging tube to allow a user to create vacuum pressure as necessary.

The invention relates to a coupling process for preparing intermediate of semi-synthetic Cephalosperin antibiotics from penicillin fermentation liquid, which comprises the following five steps of fermentation liquor filtering, liquid-liquid-liquid extracting, inversed extracting, gas aid solvent extracting and hydrolyzing. The disclosed process can integrate the procedures of abstraction and impurity separation, and improve selectivity of the destination product.

The invention discloses a pretreatment method for rapidly determining residues of abamectin pesticide in edible oil, and a quantitative analysis method thereof. The pretreatment method comprises the following steps: (1) diluting the edible oil, adding magnetic ferroferric oxide microspheres to perform magnetic solid phase extraction on the abamectin pesticide in the edible oil; (2) after the extraction is completed in step (1), separating solids from liquid, wherein an obtained solid product is magnetic ferroferric oxide microspheres absorbing the abamectin pesticide residue, washing, desorbing, and re-dissolving the magnetic ferroferric oxide microspheres, wherein an obtained solution is a solution to be determined for rapidly determining the residue of the abamectin pesticide in the edible oil; and (3) performing the quantitative analysis by adopting an external standard method by virtue of liquid phase chromatography-tandem mass spectrum. The pretreatment process of the invention can remove a great number of matrixes in the edible oil, is good in purification effect, good in recovery of pesticide, capable of greatly increasing the separation efficiency of the pesticide by combining the liquid phase chromatography and the tandem mass spectrum, is high in detection sensitivity and accuracy and good in reproducibility.

The invention discloses a process for the extraction separation of bamboo leaf flavonoids by two aqueous phases. For overcoming the drawbacks of complex operation, time consumption, low extraction rate and low quality of extracted bamboo leaf flavonoids and the like of the conventional method for extracting bamboo leaf flavonoids from bamboo leaves, the processes comprises: adding ethanol into bamboo leaf powder, filtering, concentrating filtrate, recovering ethanol, and obtaining concentrated solution; centrifuging the concentrated solution and collecting supernate; adding polyethylene glycol and glucan into the supernate, uniformly mixing, centrifuging and collecting a glucan phase; and separating glucan by a conventional method and obtaining bamboo leaf flavonoids. The method is used for extracting bamboo leaf flavonoids from the bamboo leaves can amplify a project and realize continuous operation and is simple, high in extraction rate, large in handling capacity, low in energy consumption and production cost, free from arousing inactivation or denaturation of bamboo leaf flavonoids, short in phase separation time, small in interface tension and free from organic solvent residue.

The invention discloses a method for separating palladium and copper from a solution containing copper, cobalt and nickel. The method employs acylthiourea as an extractant and melted wax as a diluent, Pd and Cu in the copper cobalt nickel palladium system can be selectively separated with a high recovery rate (the recovery rate of Pd and Cu can reach 99.9%) by controlling an acidity of copper cobalt nickel palladium system. According to the invention, the method for extracting palladium has the advantages of short balance time, high enrichment degree and fast phase-splitting; palladium and copper can be continuously extracted and separated from an acidic aqueous solution containing palladium at a time. The extractant enables a recycling use, and has small harm on environment, which has significant meaning for improving the recovery rate of non-ferrous smelting of the precious metals.

The invention relates to a method for enriching and separating flavones in cedrela sinensis leaves by an aqueous two-phase system, the cedrela sinensis leaves are firstly dried and crushed, crude extract liquid of the cedrela sinensis leaves is obtained after reflux extraction and impurity removal, ammonium sulfate and ethanol are added according to the proportion after concentration, heating andthe even mixing are carried out, thereby being split into upper and lower phases; the flavones are mainly distributed in the upper phase containing the ethanol and further concentrated and purified. The lower phase is cooled, crystallized and filtered after splitting the upper and the lower phases, ammonium sulfate crystals are recovered; anhydrous ethanol is added in the upper phase liquid for precipitating, removing the ammonium sulfate and other residual impurities and then recovering the ethanol, and a product is obtained by vacuum drying the concentrated liquid. The method has the advantages of rapid phase split, integrated process and improves the concentration and purity of the flavones in the upper phase; the material consumption is reduced, the toxicity is small, the ethanol and the ammonium sulfate are easy to be recovered and utilized; the recovery rate of the flavones in the cedrela sinensis leaves is high, the production method is simple, easy to master and not affected by the environment; the cost is low, and the method is applicable to industrial production.

The invention discloses a method for preparing a polycaprolactam hollow fiber membrane. The method comprises the following steps: (1) slicing and drying, namely, slicing granular polycaprolactam, and drying for 6-8 hours in a vacuum drying oven at 100 DEG C; (2) preparing compound diluent, namely, uniformly stirring 20wt% to 100wt% of N-ethyl-o / p toluene sulfonamide and 2,2'-(Ethylenedioxy)diethanol, thereby obtaining the compound diluent; and (3) preparing the hollow fiber membrane, namely, slowly heating the compound diluent, 30wt% to 50wt% of PA6 and 0.05wt% of an antioxidant to be at about 210 DEG C in a dissolving kettle so as to prepare a spinning solution, with nitrogen or white oil as a core solution, curing to form a frozen rubber membrane after air bath and coagulating bath, extracting the frozen rubber membrane for 18 hours by using ethanol or diethyl ether, and subsequently performing cold drawing, thereby obtaining the PA6 hollow fiber membrane. The hollow fiber membrane prepared by using the method can be applied to the fields of water treatment, affine separation and the like, and has the characteristics of simple process, convenience in industrial production and the like.