60results about How to "Improve separation and extraction efficiency" patented technology

The invention provides a method and a device for separating lithium from a lithium-containing solution. The method comprises the following steps: dividing an electrolytic cell into an anode chamber, an organic phase chamber and a cathode chamber by adopting an ion exchange membrane; and transferring lithium ions in the lithium-containing solution inside the anode chamber to a lithium enrichment solution inside the cathode chamber by virtue of an organic phase in the organic phase chamber under the effect of an external voltage, wherein the organic phase is an organic reagent which can selectively have chemical reaction with the lithium ions in the lithium-containing solution; the device comprises the electrolytic cell; the electrolytic cell is divided into the anode chamber, the organic phase chamber and the cathode chamber by adopting the iron exchange membrane; and the organic phase chamber is positioned between the anode chamber and the cathode chamber. Compared with the prior art which has low separation efficiency on the lithium irons and the other metal irons in the lithium-containing solution, the method and the device for separating the lithium from the lithium-containing solution, provided by the invention, can be used for treating a lithium-containing solution which has a relatively high magnetism to lithium ratio.

The invention discloses an extraction method for mangrove plant kandelia candel leaf total protein suitable for two-dimensional electrophoresis. A traditional trichloroacetic acid/acetone precipitation method for protein extraction and a traditional phenol extraction method for protein extraction are combined, a cosolvent SDS solution is introduced, the extraction process is optimized, and the Phe-B method suitable for extraction of the mangrove plant kandelia candel leaf total protein is established. The extraction efficiency and quality of the protein are effectively improved, and the technical scheme can be specifically suitable for extraction of the kandelia candel leaf protein in two-dimensional electrophoresis. The method has the advantages of being easy to operate, high in protein extraction efficiency and fewer in interfering substance, and is suitable for materials with difficult protein extraction, low protein extraction efficiency and more interfering substances. The extracted kandelia candel leaf protein completely meets the requirements of the first direction and the second direction of two-dimensional electrophoresis, a high-quality two-dimensional electrophoresis gel map with high resolution, more clear protein points, uniform distribution and the clear background can be obtained, and experiment repeatability and stability are good.

The invention discloses an irrigating solution, an enzymatic hydrolysate and a method for isolating placenta hematopoietic stem cells. The irrigating solution consists of a penicillin-streptomycin double-antibody, phentolamine, vitamin C and PBS. The enzymatic hydrolysate consists of a basal culture medium, collagenase I, collagenase II, heparin sodium, phentolamine, vitamin C and Z-VAD-FMK. The method comprises the following steps: cleaning blood inside a placenta with the irrigating solution; irrigating the enzymatic hydrolysate into the placenta and enzymatically hydrolyzing at room temperature; collecting the enzymatic hydrolysate, centrifuging and reserving cell sediments; re-suspending the cell sediments by virtue of the PBS, adding a hydroxyethyl starch solution, standing by, reserving and centrifuging upper liquid and discarding supernatant; re-suspending the cell sediments by virtue of a red blood cell lysis solution, promoting lysis to residual red cells, centrifuging and discarding supernatant; and re-suspending the cell sediments by virtue of a culture medium, centrifuging and discarding supernatant, so that the placenta hematopoietic stem cells are obtained. The irrigating solution, the enzymatic hydrolysate and the method disclosed by the invention can significantly improve separation and extraction efficiencies, and a great amount of cells are obtained; the hematopoietic stem cells are high in content, high in survival rate and quite low in cell pollution rate.

The invention belongs to the field of cobalt and nickel separation recycling, and particularly relates to a cobalt and nickel extraction separation method capable of reducing coextraction. The separation method sufficiently combines the characteristics and needs of cobalt and nickel extraction and separation, a buffer action mechanism is used for maintaining the water phase pH to be within the optimal pH range of cobalt rather than the optimal pH range of the nickel in the cobalt and nickel extraction process, meanwhile, key process parameters in the extraction process are controlled and adjusted, the buffer capacity of a buffer solution is maintained, the coextraction of nickel is reduced, and the technical problem that during cobalt and nickel extraction and separation in the prior art,due to the fact that in the extraction process, pH of liquid rises, nickel co-extraction is serious, and finally, the cobalt and nickel separation efficiency is reduced is solved.

The invention discloses a method of separating and extracting coenzyme Q10 from microbial fermentation broth. The method includes filtering the microbial fermentation broth, and drying to obtain bacterial powder; using a micronization technique to crush the bacterial powder into coenzyme Q10 micropowder 2-35 mu m in particle size; extracting, performing solid-liquid separation, carrying out chromatography, and crystallizing to obtain finished coenzyme Q10. The method herein has high yield; product quality is good; the process is simple; extraction time is short; separation and extraction efficiency is high; the cost is low; the method is suitable for industrial production.

The invention discloses a 2,4-diaminotoluene molecularly imprinted polymer, a preparation method and application thereof, and particularly provides the 2,4-diaminotoluene molecularly imprinted polymer prepared from a functional monomer of methyl acrylic acid, a template molecule 2,4-diaminotoluene, and a crosslinking agent divinyl benzene, a preparation method for the molecularly imprinted polymer, and application of the molecularly imprinted polymer to solid phase extraction separation. The 2,4-diaminotoluene molecularly imprinted polymer provided by the invention is more excellent in mechanical property, higher in specific volume, higher in adsorption acting force to 2,4-diaminotoluene, and higher in adsorption capacity to 2,4-diaminotoluene; the preparation method for the 2,4-diaminotoluene molecularly imprinted polymer is short in synthesis time, and the washing of the template molecule is easy; the molecularly imprinted polymer is high in solid phase extraction efficiency to 2,4-diaminotoluene and more thorough in adsorption.

The invention discloses a purification method of ferric trichloride, which comprises the following steps: oxidizing iron-containing chloride into ferric trichloride, adding industrial hydrochloric acid and butyl acetate, extracting, standing for layering, taking an organic phase, adding a stripping agent, carrying out reverse extraction to obtain ferric trichloride with ultralow impurity content, evaporating, concentrating, and removing organic matters to obtain high-purity ferric trichloride. Recyclable organic phase. The purification process is not limited by the purity of production raw materials, is simple to operate and low in equipment investment, and does not use toxic extractant. The ferric trichloride product produced by the process disclosed by the invention can be applied to the fields of drinking water treatment, medical intermediates, analytical testing, precision etching and the like.

The invention discloses a method for comprehensively recovering nickel and magnesium in a bio-leaching process of high-magnesium low-nickel sulfide ore. The method comprises the following steps: treating the bio-leachate of high-magnesium low-nickel sulfide ore through an ion exchange resin column to adsorb nickel ions, and enabling the magnesium-rich solution to flow out; desorbing residual magnesium ions in the ion exchange resin by use of low-acidity sulfuric acid, desorbing nickel ions in the ion exchange resin by use of high-acidity sulfuric acid, and returning the nickel ion desorption solution to the yard; and when the mass concentration of Mg and Ni in the leachate of the yard is lower than 5, extracting nickel with Versatic 10 and performing back extraction of an organic phase to obtain a nickel-rich solution. According to the method, by increasing the nickel-magnesium concentration ratio and reasonably matching the technological parameters, nickel and magnesium are effectively separated, and a recovery method of nickel and magnesium in bio-leachate is realized.

The present invention discloses a pentafluoroethane purification method, which comprises: (a) preparing a reaction device; (b) carrying out extracting rectification; (c) carrying out distillation purification; and (d) using a by-product. According to the present invention, the method has advantages of simple process and easy control; the method sequentially comprising extracting rectification and distillation is used, such that the separation efficiency is high, the crude product is effectively separated, the purity of the separated finished product pentafluoroethane can achieve more than 99.9%, the purity is high, and the quality is good; and the separated by-product chloropentafluoroethane is recycled, and is converted into the product pentafluoroethane so as to improve the utilization rate of the by-product and turn the waste into treasure.

The invention relates to a valveless liquid-liquid extraction device. The device comprises a glass tube with two ends bent inwards as well as a rotatable fixing clamp for fixing the glass tube on a vibrator, wherein one end of the glass tube is a liquid charging end, the other end is a liquid discharging end with scales, a rubber plug and a rubber sealing cap are also arranged at the liquid charging end and the liquid discharging end respectively, the liquid charging end and the liquid discharging end are bent inwards and form a first bent angle and a second bent angle respectively, and a middle section pipeline for accommodating liquid samples and an organic solvent for extraction are formed between the first bent angle and the second bent angle. Compared with the prior art, the device has the advantages of simple structure, economy and practicability, the design of a valve of a traditional separating funnel is avoided, few liquids remain, smoothness is realized during liquid separation, the device is applicable to a few samples, for which the separating funnel cannot be used, with the dosage as few as one milliliter, the extraction separating efficiency is high, and the accurate volume can be detected during liquid discharge separation.

The invention provides a method for recycling rare earth from a waste nickel-metal hydride battery. The method is carried out by the following steps in sequence: crushing the battery, dissolving battery core powder, removing impurities, extracting for a plurality of grades and reversely extracting for a plurality of grades. The step of extracting comprises the step of adding an extracting agent organic solution into a rare earth raw solution without the impurities; the extracting agent organic solution comprises an alkyl methyl amine mixed organic matter, organophosphorus esters, sulfonated kerosene and liquid organic alcohols with more than six carbon atoms; the grades for extracting are at least three grades and the grades for reversely extracting are at least three grades. The recycling method provided by the invention utilizes the special extracting agent organic solution and the extraction and separation efficiency on the rare earth is high and commonly can be up to more than 99%; with the adoption of the recycling method, any sodium ion is not introduced and a sodium removing procedure and the sodium removing cost are saved; an organic extracting agent can be recycled and reutilized so as to further reduce the cost; the organic extracting agent does not need to be saponified so that the saponification cost is saved.

The invention discloses a method for extracting grape seed oil by an ultrasound-assisted supercritical carbon dioxide technology as well as a product of the method and an application of the product. The method comprises the following steps: performing pretreatment crushing on dried grape seeds until 60-80-mesh grape seeds are obtained, placing the crushed grape seeds into a supercritical reactionkettle, controlling pressure of the supercritical reaction kettle to 10-40 MPa, controlling the temperature to 50-100 DEG C, and controlling pressure keeping time to 60-120 min; opening an ultrasonicdevice, and performing extraction to obtain primary grape seed crude oil; and finally, performing separation for two times by using a molecular distiller to obtain the high-purity grape seed oil. According to the method disclosed by the invention, an ultrasonic technology is combined with a supercritical carbon dioxide extraction technology, the ultrasound-assisted supercritical carbon dioxide technology is utilized to realize extraction of the grape seed oil, and purposes of high-efficiency extraction, separation without impurities and high purity of an extraction product are achieved; and the method disclosed by the invention has a simple operation process and short extraction time, reduces costs, improves efficiency of extraction separation, and has stronger technical novelty and creativity.

The invention relates to a packed extraction tower, application thereof and a residual oil solvent deasphalting method. The packed extraction tower is composed of a shell, a raw material inlet locatedat the middle part of the shell, an extraction solvent inlet located at the lower part of the shell, a tower top extraction phase outlet, a tower bottom raffinate phase outlet and extraction structured packing; the extraction structured packing fills the shell of the extraction tower; and the extraction structured packing is grid type packing. The packed extraction tower provided by the inventionis suitable for a heavy oil solvent deasphalting process, and is high in separation efficiency and large in treatment capacity.

The invention discloses a fresh zanthoxylum oleoresin separation and purification process which comprises the following steps: after harvesting fresh zanthoxylum, carrying out cold pressing within two hours to obtain fresh zanthoxylum oleoresin, carrying out countercurrent extraction separation on the fresh zanthoxylum oleoresin through a liquid substance extraction and separation unit of a supercritical CO2 fluid dynamic countercurrent extraction and separation system, and after the countercurrent extraction separation is completed, obtaining fresh zanthoxylum resin from an extraction unit, and obtaining the fresh pepper essential oil through the separation unit. The extraction separation process is as follows: the feeding rate is 40kg/h, the CO2 flow rate is 600L/h, the extraction temperature is 45 DEG C, and the extraction pressure is 20MPa; the separation temperature I is 40 DEG C, the separation pressure I is 7.5 MPa, the separation temperature is 55 DEG C, and the separation pressure II is 4-6 MPa; the total yield of the fresh zanthoxylum oil resin product reaches 98.74%-99.19%, and the separation efficiency reaches 94.00%-99.24%; the volatile oil content of the obtained fresh zanthoxylum bungeanum essential oil can reach 101.94-128.93 ml/100g, and the numb degree is lower than 5 mg/g; and the content of volatile oil in the obtained fresh zanthoxylum bungeanum maxim resin is smaller than 5 ml/100 g, the hemp degree can reach 141.12 mg/g to 182.56 mg/g, and the hemp degree is increased to 42.59% to 53.17%. According to the process disclosed by the invention, the fresh Chinese prickly ash essential oil with high volatile oil content and the fresh Chinese prickly ash resin with high numb degree can be obtained, and the purification effect of the two products is remarkable.

The invention discloses a drug extraction device for biomedicine. The device comprises a tank body and a shell, wherein one side of the tank body is connected with a communicating pipe, the other endof the communicating pipe is connected with the shell, the communicating pipe is provided with a plurality of branch pipes, and a plurality of aeration ports are formed in the branch pipes; a coolingbox is arranged in the shell, a condensation pipe is arranged in the cooling box, a discharge port is formed in the bottom of the cooling box, and the discharge port is an extract liquor discharge port; the communicating pipe is communicated with the cooling box; a clamping mechanism is arranged at the bottom of the cooling box; a safety mechanism is arranged at the top of the shell; the communicating pipe is provided with a plurality of aeration ports, so that the contact area of the supercritical gas and the extraction liquid is increased, the mixing rate of the supercritical gas and the extraction liquid is increased, and the extraction effect is improved; and by arranging a safety mechanism, safe pressure relief is achieved, and the use safety of the equipment is improved.