296results about How to "Short separation time" patented technology

The invention discloses a double-water phase extracting technique of 1, 3-propanediol from ferment liquid in the biological engineering technical domain, which is characterized by the following: adding inorganic salt and hydrophilic organics in the ferment liquid of 1, 3-propanediol to form new double-water phase; extracting to separate 1, 3-propanediol from ferment liquid.

The invention discloses a double-water phase extracting technique of 2, 3-butanediol from ferment liquid in the biological engineering technical domain, which is characterized by the following: adding inorganic salt and hydrophilic organics in the ferment liquid of 2, 3-butanediol to form new double-water phase; extracting to separate 2, 3-butanediol from ferment liquid.

The invention relates to a Chinese magnoliavine fruit monomer composition separation preparation method; ethanol extracts from Chinese magnoliavine fruit are extracted by petroleum ether, chromatography is carried out to the petroleum ether extracts by a silicagel column, and then the petroleum ether is eluted by petroleum ether-ethylacetate, and HPLC is used for monitoring, and then crude extract A and crude extract B are fraction-collected, and eluted; the volume ratio of eluant petroleum ether and ethylacetate is 3-5:1, the crude extract A and crude extract B are respectively applied to a high-speed counter-current chromatography for separation, so as to obtain SCHisanhenol, deoxyschizandrin, schizandrin B, schisandrin C, schizandrol A, schizandrol B and schisantherrin B monomers, and the purity is higher than 98 percent.

A linear trap which allows for charge separation and ion mobility separation in a speedy manner, and enables measurement with high duty cycle. A mass spectrometer comprises an ion source, an ion trap for trapping ions ionized by the ion source, an ion trap controller for controlling a voltage on an electrode included in the ion trap, and a detector for detecting the ions ejected from the ion trap. The ion trap controller includes a table for each mass-to-charge ratio, the table containing a frequency of the voltage used for charge separation, and a gain of the voltage for ejecting a first ion with a first charge outside the ion trap, and retaining in the ion trap a second group of ions with a second charge that is lower than that of the first charge. The ion trap controller controls the voltage based on the mass-to-charge ratio set. The mass spectrometer has significantly improved sensitivity, as compared to the prior art.

The invention provides a small-size quickly separated firer-unlocking bolt. The small-size quickly separated firer-unlocking bolt comprises an unlocking bolt main body (1), a sealing ring (2) and a semiconductor bridge-type pressure cartridge case (3). In the small-size quickly separated firer-unlocking bolt, a semiconductor bridge firing element is adopted as a firer connection and separation mechanism of the firing element; the whole axial length of the small-size quickly separated firer-unlocking bolt is 60 to 65 millimeters, and the radial size is less than or equal to 16 millimeters; the separation time of the small-size quickly separated firer-unlocking bolt is 1.0 to 1.1 microseconds, the separation synchronism is 0.10 to 0.15 microseconds, and the connection bearing capacity is 21 to 25kN. The small-size quickly separated firer-unlocking bolt has the characteristics of small structural size, short separation time, high synchronism, low firing energy and the like; a safe, quick and synchronous separation function of the interstage of a spacecraft can be realized; the small-size quickly separated firer-unlocking bolt can be directly applied to interstage separation systems of the spacecrafts such as high-speed guided missiles, airships, satellites and the like; meanwhile, a beneficial reference is provided for a design of a similar power source firer mechanism.

The invention discloses a method for producing fatty acid by hydrolyzing lipid through three liquid-phase lipase catalytic systems. The method comprises the following steps: firstly, preparing enzyme solution with the lipase concentration of 5-20000 U / mL, and adding soluble inorganic salts, alcohol / ketonic hydrophilic fraction and lipid to the enzyme solution so as to form three liquid-phase systems; secondly, laying the prepared three liquid-phase systems into an agitated vessel for reaction, standing or centrifuging the systems after the reaction so as to divide the systems into an upper layer, a middle layer and a lower layer, and collecting products in the upper layer so as to obtain fatty acid phase. The method adopts the three liquid-phase systems to extract fatty acid in crude enzyme solution, performs direct hydrolyzing to produce fatty acid, can not only greatly reduce the production cost of enzyme, but also solve the problems of high energy consumption for glycerol and enzyme separation, high cost, high pollution and the like.

The invention discloses a treatment method and a separation recovering system of a waste cutting liquid, belonging to the technical field of chemical equipment. The technical scheme is as follows: the treatment method comprises the steps: heating and pressurizing a waste cutting liquid to be treated and then coarsely filtering to remove solid impurities; performing film filtration and separation on the coarsely filtered waste cutting liquid to obtain a cutting clear liquid and a cutting concentrated liquid; and treating the cutting concentrated liquid as a dangerous waste liquid, making the cutting clear liquid be used for preparing a cutting liquid again or conveying the cutting clear liquid to a sewage treatment system, and discharging after the cutting liquid reaches the standard through biochemical treatment. The treatment method disclosed by the invention is simple and reliable in operation and high in separation efficiency, and capable of effectively realizing separation of the cutting liquid from water. The separation recovering system is simple in structure, easy to operate, convenient to maintain, safe and reliable in operation, and good in treatment effect.

The invention relates to an ionic liquid functionalized magnetic nanoparticle and a preparation method and application thereof. FeCl3.6H2O and anhydrous sodium acetate are dissolved in glycol, and react under 200 DEG C, so that Fe3O4 magnetic nanoparticles are obtained; the Fe3O4 magnetic nanoparticles are weighed and mixed with H2O and ethanol, pH is regulated to 9 to 10, tetraethoxysilane is added for reaction, and after vacuum drying, Fe3O4 / SiO2 is obtained; the Fe3O4 / SiO2 is dispersed and suspended in toluene, and after 3-chloropropyltrimethylsilane and triethylamine are added for reaction, chloropropyl magnetic nanoparticles are obtained by way of vacuum drying; the chloropropyl magnetic nanoparticles are added into toluene, N-alkylimidazole derivative is added for reaction, and after vacuum drying, the ionic liquid functionalized magnetic nanoparticles are obtained. When being used for separating target standard protein, the ionic liquid functionalized magnetic nanoparticle has the characteristics of good selectivity and high adsorbing capacity, and cannot contaminate target separated product.

The invention relates to chiral magnetic nano-particles and preparation and application thereof. The preparation comprises the following steps of: (1) preparing Fe3O4 magnetic nano-particles; (2) preparing Fe3O4 / SiO2 composite magnetic nano-particles; (3) preparing cellulose-2,3-di(3,5-dimethyl phenyl carbamate); and (4) performing surface chiral modification on the Fe3O4 / SiO2 composite magnetic nano-particles by using the cellulose-2,3-di(3,5-dimethyl phenyl carbamate). The chiral magnetic nano-particles are used for separating a racemic compound DL-1-phenethyl alcohol, and an optical rotation value test for obtaining components through singly spinning a guide sample and separation proves that laevo-rotation and dextro-rotation are separated very well. The chiral magnetic nano-particles have the advantages of short separation time, simple and convenient operation, and good separation effect of chiral compounds; besides, the chiral magnetic nano-particles can be thoroughly separated from base solution under an external magnetic field, and not only cannot cause pollution to a target separation object but also can be completely recycled, thereby fulfilling two aims of ecumenical efficiency and environmental protection.

The invention discloses a plasma separating chip, and belongs to the field of micro electro mechanical systems. The chip is provided with a micro spiral fluid channel, and a centre around which the micro fluid channel bypasses is provided with a sample inlet; the inner side at a certain position of the micro fluid channel is connected with another concentric micro spiral fluid channel; a plurality of gradient channels are arranged between the two micro spiral fluid channels; and the two micro spiral fluid channels are connected with two different sample outlets. A mixture of different sizes of cells or particles is injected through the sample inlet of the plasma separating chip by a micro pump or an injection pump; and the cells and plasma in the blood are separated into two different circulation channels by inertial characteristics of the fluid and a pressure difference between the inner and outer channels. The plasma separating chip has a compact structure; the total area of the chip is reduced, and the separating efficiency is improved; and time is short in the separating process of the chip.

The invention discloses a two-step simultaneous preparation method for pedunculoside and syringin and belongs to the technical field of natural product extraction and separation. The method comprises the following steps: adding 20-70% (volume fraction) of ethanol water into ovate leaf holly bark, performing reflux extraction, collecting an extracting solution, standing and filtering the extracting solution, and respectively collecting filtrate and residues; 2 drying the residues to obtain crude pedunculoside, and purifying the pedunculoside to obtain the pedunculoside; 3, performing column chromatography separation to the filtrate with macroreticular resin, taking an ethanol-water system as an eluting agent to conduct gradient elution, concentrating and drying elution components to obtain crude syringin, purifying the crude syringin to obtain the syringin. The method is simple and feasible, has a short separation time and high separating efficiency, the purity of the pedunculoside and the purity of syringin can both reach more than 98%, and the method is suitable for large-scale industrial production.

The invention relates to a fingerprint map for controlling the quality and efficacy of rhizoma corydalis and preparation of the rhizoma corydalis and a preparation method of the fingerprint map. The invention discloses that the fingerprint map is one of anti-myocardial ischemic active site in the rhizoma corydalis, and the active site mainly comprises quaternary ammonium base components, wherein, columbamine, 13-methyldehydrocorydalmine, dehydrocorybulbine, palmatine, dehydrocorydaline are the main five components of quaternary ammonium base. The fingerprint map can identify the authenticity of samples and evaluate the quality and efficacy of the rhizoma corydalis or the preparation thereof, so that the quality of the rhizoma corydalis and the preparation thereof have real controllable standards, so as to ensure the product quality to be stable. The method has the advantages of being simple to operate and being accurate and reliable, which is applicable to controlling the quality and efficacy of the rhizoma corydalis and the preparation thereof.

The invention discloses a treatment method and a separation and recovery system of money printing wastewater and belongs to the technical field of the environment-friendly equipment. The treatment method of the money printing wastewater comprises the following steps: pressurizing the money printing wastewater to be treated to the range of 2-3MPa, and then carrying out coarse filtration to remove large-particle substances and obtain a filtrate; performing membrane filtration and separation on the filtrate, thereby obtaining a filtered concentrated liquid and a filtered clear liquid, respectively; performing reverse osmosis treatment on the filtered clear liquid, and removing the salts of the wastewater, thereby obtaining a reverse osmosis concentrated liquid and a reverse osmosis clear liquid; regulating the pH value of the reverse osmosis clear liquid until the reverse osmosis clear liquid is neutral, performing biochemical treatment on the reverse osmosis clear liquid and discharging the treated liquid after the liquid is up to standard; performing evaporating treatment on the reverse osmosis concentrated liquid and the filtered concentrated liquid, and separating to obtain a concentrated liquid and water, and performing de-solidification treatment on the concentrated liquid and conveying the water to mix with the original money printing wastewater for continuous treatment. The method is simple and reliable in operation and high in separation efficiency, and therefore, innocent and reduced emission of the money printing wastewater is reduced; the system is simple in structure, easy to operate, convenient to maintain, safe and reliable in operation, and good in treatment effect.

The invention discloses a method for preparing amylose having a narrow molecular weight distribution range, and aims to provide a simple and low-cost preparation method for separating amylose and amylopectin from retrogradation resistant starch based on the characteristic that only amylose and amylopectin within a certain molecular weight range participate in retrogradation under specific conditions in the starch retrogradation process. The method comprises the following steps: carrying out enzymolysis on the retrogradation resistant starch by thermostable amylase, thus obtaining purified retrogradation resistant starch; dissolving the purified retrogradation resistant starch in 2-4mol / L alkaline liquid; and carrying out precipitation separation on the retrogradation resistant starch dissolved in the alkaline liquid by n-butyl alcohol to obtain the amylose, and carrying out precipitation separation by ethanol to obtain the amylopectin. The method disclosed by the invention is simple, is low in cost, is short in separation time and can obtain a large number of separation products.

The mixed aeration type biological treating system features that there are one circular biochemical pond set beside the mixing pond, which has one inside ejector and two overflow grooves in the top including one connected to the mixing pond via an outside circulating pipe; one first stage air floating pond connected to the other overflow groove and to the mixing pond via a sewage reflux pipe; one second stage air floating pond connected to the first stage air floating pond; one blower connected to the circular biochemical pond via ventilating pipeline; and one shallow aeration pipe in the outlet of the ventilating pipeline. The present invention has combined inside-pond circulation and outside-pond circulation, greatly raised impact resistance, and increased chemical-adding coagulating and air floating pond for raised treating capacity.

The invention discloses a method to prepare high-purity capsaicin monomers. The separation solvent system is composed of alkyl halies, alcohol, water, etc. The separation solvent system is arranged in the separating funnel, and is shaken and then kept still for stratification, the upper phase is taken as fixed phase and the lower phase as mobile phase. A proper dosage of sample is weighed and dissolved in the mixed solution of the upper phase and the lower phase. Firstly, the fixed phase is pumped to fill fully a chromatographic separation column at the specified flow rate, and then the head end of the column is connected with a six-way sample-feeding valve. The speed controller is started; when the rotational speed reaches to 800r / min, the sample solution is pumped into the mobile phase at the flow rate of 2.0mL / min; when the mobile phase effuses from the chromatographic column, the sample is loaded, and each separated peak is collected; high-performance liquid chromatography (HPLC) is adopted to measure the purity, and three monomers i.e. dihydrocapsaicin, capsaicin and nordihydro-capsaicin are achieved. The method is applicable to the preparation of such three high-purity capsaicin monomers by the crude extracts of the capsaicin obtained through various approaches. The method is characterized in simple operation, low production cost and free of organic solvent residue; and the method can be promoted for the preparation of high-purity capsaicin monomers.

The invention discloses a separating and recycling method for an atom transfer radical polymerization catalyst. The separating and recycling method is characterized by comprising the following steps of adding a radical polymerization monomer, an initiator, a catalyst, a ligand, a reducing agent, a first solvent and a second solvent into a reaction vessel, wherein the monomer is an MMA (methyl methacrylate) oil-soluble monomer, the initiator is selected from 2-bromoisobutyryl ethyl ester and ethyl 2-bromopheny lacetate, the reducing agent is azobisisobutyronitrile, the first solvent is polyethylene glycol 200, and the second solvent is selected from methylbenzene or dimethylbenzene; heating the reaction system to reaction temperature to enable the first solvent and the second solvent to mutually dissolve; carrying out atom transfer radical polymerization reaction under a homogeneous phase; after the reaction is ended, cooling to room temperature to enable the first solvent and the second solvent to be layered; separating two phases to enable the catalyst and the ligand to exist in the first solvent and a polymer to exist in the second solvent so as to realize the separation and recycling of the catalyst.

The co-using interface of the method of atom fluorescence spectrum and generation of the hybride in capillary electrophoresis relates to an apparatus thereof. This interface provides the key solutios that the capillary electrophoresis needs stable electric circuit, and that the method of atom fluorescence spectrum needs to convert analysed agent into hydride. The interface includes cross passage 1, T passage with small inner diameter 5, T passage with large inner diameter 7 and gas-liquid separator 6, cross passage 1 connected in turn to T passage with small inner diameter 5, T passage with large inner diameter 7 and gas-liquid separator 6. The interface has ingenious and novel design, having such features as small dead volume, short connecting piping and simple and practical operation.

The invention relates to a gas-chromatography filler capable of separating and analyzing hydrogen isotopes and a preparation method of the gas-chromatography filler and belongs to the technical field of functional materials. The material takes gamma-Al2O3 as a carrier. The synthesis method comprises the steps of loading a metal-organic skeleton compound to the surface of the gamma-Al2O3, carrying out washing and drying, and then, dipping the gamma-Al2O3 in an aqueous solution of a transition metal salt MXn, thereby obtaining a loaded type composite material. The gas-chromatography fixed-phase material is applied to the separation of hydrogen isotopes H2 / D2, the separation effect is good, the quantitative analysis is accurate, and the material can be repeatedly used and is low in price; due to good mechanical properties, the recovery and reuse are very convenient.

The invention relates to a step-by-step oil-water mixture separation method coupled with oil gas washing. The method comprises the following steps: first light oil containing 0.5-6 percent of synthetic water and low-pressure separator gas containing a trace amount of hydrocarbon are mixed and washed, then the light oil containing a trace amount of hydrocarbon flows into a primary oil-water separator from a left sealing head, and wastewater containing 0.05-0.5 percent of oil flows into the primary oil-water separator from a right sealing head; purified low-pressure separator gas is discharged from the top, mixed liquid is discharged into a deep dehydrater, and about 0.05-0.5 percent of water is removed from the light oil; wastewater on the left side flows into a water drum to be discharged, oil-removed wastewater on the right side is discharged nearby the right side of partition board into a deep oil remover, and about 0.03-0.6% of oil is removed from the water; by virtue of deep dehydration as well as oil removal and dehydration by a specially knitted conjugate fiber module in the oil remover, after the water content in the light oil is smaller than 0.02% and the oil content in the water is smaller than 0.01, the light oil and the water are transported outside. According to the method oil-water separation and step-by-step separation are combined, oil dehydration and wastewater oil removal can be realized rapidly and efficiently and oil is recycled to the maximum extent.

The invention provides a method for rapidly detecting the contents of amaranthus red and brilliant blue in foods. The method comprises the following steps of: respectively taking an amaranthus red standard solution, a brilliant blue pigment standard solution and 0.3mL of ion liquid into a colorimetric tube; diluting and making up to volume being 10mL; determining the absorbance of the amaranthus red and brilliant blue pigment standard solutions on a 522nm place and a 630nm place by utilizing an ultraviolet and visible spectrophotometer, and making working curves to obtain equations of linear regression; filtering a liquid food sample or solid food sample dissolving solution and extracting by an ion liquid double-water-phase system formed by 1-butyl-3-methylimidazole bromide and K2PHO4; diluting an ion liquid phase to a constant volume and determining the absorbance of the system; respectively calculating to obtain the contents of the amaranthus red and the brilliant blue in the foods according to the equations of linear regression. The method disclosed by the invention is easy to operate and does not need to use a plurality of volatile solvents; the separation time is short and an instrument is common and easy to obtain; the method disclosed by the invention can be used for performing rapid, convenient, environment-friendly and economical qualitative and quantitative determination for quality inspection departments and manufacturing enterprises.

The invention relates to a method for separating and enriching chlorogenic acid in tobacco. According to the method, the chlorogenic acid in tobacco is separated and enriched by utilizing a solvent flotation technology, and a mixed organic solvent is added to serve as an extracting agent, so that the polarity of the extracting agent is changed, and the extraction rate of the chlorogenic acid is improved. The pH value of a tobacco extracting solution is regulated, so that the polarity of the extracting agent is matched with that of the chlorogenic acid, and the separation, enrichment and purification effect is good. The extraction can be performed at room temperature due to the adopted solvent flotation technology, and the operation conditions are mild. According to floatation of an air floatation solvent, an emulsification phenomenon generated due to shaking during common liquid-liquid extraction is avoided, the amount of the used organic solvent is small, and the method is large in enrichment factor, short in phase separation time, low in cost and feasible to operate.

The invention provides a desorption regeneration method of a hydrophobic macroporous polymer adsorbent adsorbed with butanol. The method disclosed herein comprises the steps of using water-soluble low-boiling polar solvent and water to successively elute the hydrophobic macroporous polymer adsorbent adsorbed with butanol. According to the invention, after a solution containing butanol (e.g. butanol fermentation liquor) is adsorbed by the hydrophobic macroporous polymer adsorbent, by using the desorption regeneration method disclosed herein, the full dissolution and desorption of the adsorbed butanol in the adsorbent can be realized; in addition, the regeneration treatment can be directly carried out on the adsorbent on a fixed bed where the butanol fermentation liquor is adsorbed, and the adsorption process of the next stage can be directly conducted without taking out the adsorbent from the fixed bed, thus a lot of time is saved, and the regeneration efficiency is raised. The method disclosed herein has the advantages of simple process, short separation time, easy, rapid and complete desorption and regeneration, low investment of devices, low pollution, and low energy consumption, and is easy for large scale production.

The red mud separating process includes cyclonic grading the chamotte lixiviating slurry from the chamotte lixiviating step in a swirler while controlling the feeding pressure in 0.245-0.255 MPa, exhausting the slurry with coarse grains and high solid content via the bottom exhaust port to bottom groove, filtering the slurry with fine grains and low solid content in a bag filter to separate red mud from solution, flushing the filter slag to bottom groove, and returning the filtrate to the coarse liquid groove. The present invention has reasonable separation process, short and stable red mud separating period, high alumina and sodium oxide lixiviating rate and other advantages.

The invention provides a separation device and a separation method. The separation device is used for separating a device to be separated. The device to be separated comprises a rigid carrier substrate, a flexible device arranged on the rigid carrier substrate, and a protective film which covers the flexible device. The four edges, which do not cover the flexible device, of the protective film fit the rigid carrier substrate. The separation device comprises a base used for placing the device to be separated, an air knife, and an air knife control member which is used for controlling the air knife to blow the boundary of at least one edge of the protective film and the fit surface of the rigid carrier substrate. The protective film is separated from the rigid carrier substrate. According to the invention, when the rigid carrier substrate and the flexible device are separated by the separation device, the separation time can be reduced without causing damage to the rigid carrier substrate and the flexible device.

The invention discloses a solid-liquid separation method for Pichia pastoris fermentation broth. The method comprises the following steps: uniformly mixing chitosan solution and Pichia pastoris fermentation broth, adjusting pH and stirring, subjecting chitosan to flocculation in the Pichia pastoris fermentation broth, and finally removing strains and macromolecule impurity through centrifugation or filtering to obtain solution comprising recombinant protein. By adopting the method disclosed by the invention, the removal rate of Pichia pastoris strains and the recovery rate of recombinant protein are both significantly improved, the time for separation is short, the cost for separation is low, the obtained solution has high clarity, and the method is more suitable for industrial production.

The invention discloses a microfluidic chip and an exosome extraction method. The microfluidic chip comprises a substrate and a microfluidic channel layer on the substrate, wherein the microfluidic channel layer is provided with a sample inlet, a sample outlet, and a plurality of mixed channels and a magnetic chamber communicated between the sample inlet and the sample outlet, and the magnetic chamber is provided with a magnetic disk. According to the invention, exosomes can be continuously, automatically and efficiently purified, the sample dosage requirement is less, the chip size is less, and the microfluidic chip is convenient to carry. by using the microfluidic chip to extract the exosomes, the degree of automation is high, the separation time is short and the efficiency is high; andin the extraction process, physical damages caused to the exosomes are greatly reduced.

The invention discloses a purification device and a separation method of oily sewage. The device comprises a water inlet allocation device, a column separator, a floating oil collection device, an inflatable cyclone separator, at least one self-sucked type micro-bubble generator and at least one dissolved gas separation micro-bubble generator, wherein the column separator is arranged at the upper part of the column body; the built-in inflatable cyclone separator is arranged at the lower part of the column body; the column separator and the inflatable cyclone separator are communicated vertically; an inflation point of the dissolved gas separation micro-bubble generator is arranged at the upper part of the column body; an inflation point of the self-sucked type micro-bubble generator is arranged at the lower part of the column body. By adopting the two inflation modes that the micro-bubble is generated through negative self-sucked ejection air flow and high-pressure dissolved gas depressurization separation, the hydrocyclone separation and the floating separation are coupled, refined granular oil in the oily sewage can be effectively separated, the low limit of effective flotation granularity is small, the separation time is short, the operation cost is low, and the problem that emulsified oil in the oily sewage is hard to separate is solved.