689results about "Carboxylic acid esters separation/purification" patented technology

The invention belongs to the field of pesticide preparations, and particularly relates to an oil suspending agent containing pleuromutilin and a preparation method of the oil suspending agent. According to the invention, by optimizing the formula, the obtained oil suspending agent can effectively prevent and treat bacterial diseases, the dosage form of the oil suspending agent is more beneficial to application to spraying method pesticide application, and the embodiment verifies that the prevention and treatment effect on the bacterial diseases can reach 90% or above under the condition that the concentration of pleuromutilin is 200PPM. In addition, according to a traditional method, an active compound is obtained through fermentation, and then the active compound is mixed with a corresponding solvent and an auxiliary agent to be processed into a dosage form, so that the cost is high, and great pollution is brought. The method provided by the invention not only meets the control requirements on bacterial diseases, but also saves the energy and power cost from the aspect of process, reduces the use of solvents, is more beneficial to environmental protection, and thus has great economic benefits, environmental benefits and ecological benefits.

The invention relates to a method for purifying a monomer bis (2-hydroxyethyl) terephthalate (BHET) obtained by depolymerizing waste polyester through ethylene glycol (EG), and belongs to the technical field of polyester recycling. The BHET microwave radiation induced film evaporation separation and molecular distillation refining continuous process provided by the invention solves the problems of long process flow, poor continuity, more side reactions and low purity and yield in the direct separation and refining process of BHET in alcoholysis liquid based on a gas-liquid equilibrium separation method at present. The whole technological parameter requirement is mild, the process is short, continuity is good, the BHET purity of the product is larger than or equal to 99.0 wt%, the hue is good, and the BHET yield is larger than or equal to 80.0%. And meanwhile, the method has the advantages that EG is conveniently recycled in a system, the production process is cleaner and more environment-friendly, and the comprehensive efficiency advantage is obvious.

The invention belongs to the technical field of regenerated polyester, and particularly relates to a waste polyester-spandex blended fabric recovery method, which comprises the following steps: carrying out decoloration and depolymerization on a colored waste polyester-spandex blended fabric by using a treating agent; and depolymerizing the decolored polyester fabric by using a depolymerizing agent to obtain the terephthalate. Wherein the treating agent is more than one of dimethyl carbonate, diethyl carbonate and methyl ethyl carbonate; the depolymerizing agent is the same as the treating agent; the depolymerization rate of spandex in the waste polyester-spandex blended fabric is 98-100%, and the decolorization rate of the waste polyester-spandex blended fabric calculated according to the K / S value is 98% or above. The method breaks through the bottlenecks of high pollution and high energy consumption of the traditional process, and solves the contradiction that component separation and decoloration are difficult to take into account in the recovery process of the blended fabric.

The invention discloses an efficient purification method of rBHET, and belongs to the technical field of waste polyester recycling. A reaction raw material obtained after premixing of waste PET polyester raw material particles and a catalyst and ethylene glycol are jointly and continuously introduced into a depolymerization reactor, the reaction raw material and ethylene glycol in the depolymerization reactor are mixed and pass through a plurality of rotating discs, and the materials form a flowing film on the rotating discs rotating at a high speed to promote depolymerization; depolymerization reaction liquid generated in the depolymerization reactor enters a temporary storage tank to be stored after being subjected to impurity removal, the depolymerization reaction liquid in the storage tank is introduced into a rectifying tower to be primarily concentrated and purified, obtained concentrated liquid enters an evaporator to be secondarily concentrated and purified, obtained secondary concentrated liquid enters a cooler to be cooled and then enters a product tank to be crystallized; and drying the crystallized solid to obtain a high-purity rBHET product. According to the method, the production efficiency is improved, and the purity of rBHET is effectively improved.

The invention belongs to the field of medicines, and relates to a compound derived from Sinkiang lithospermum, a preparation method thereof and application of the compound in prevention and treatment of cardiovascular diseases. Specifically, the invention discloses a monoterpene benzoquinone derivative with a novel structure in Sinkiang lithospermum, a preparation method of the monoterpene benzoquinone derivative and application of the compound in preparation of anti-myocardial injury drugs. An in-vitro anti-myocardial cell injury activity experiment proves that the compound has a remarkable protection effect on isoprenaline (ISO)-induced H9C2 cell (rat embryo myocardial cell) injury and hypoxia-reoxygenation-induced H9C2 myocardial cell injury. The result shows that the compound can be used for preparing the anti-cardiovascular disease medicine.

The invention discloses a process for preparing DMT and DOTP by recycling waste printing and dyeing white mud. The process comprises a pretreatment unit, a methyl esterification unit, a rectification unit, a pulping unit, an ester exchange unit and a refining unit, waste printing and dyeing white mud is used for methyl esterification to prepare DMT, DMT rectification and purification, DMT transesterification to prepare DOTP and DOTP purification. According to the process, efficient esterification of the white mud and product separation can be achieved through the catalyst and the process conditions adopted in the methyl esterification stage, the obtained refined DMT can serve as a polyester monomer product and can also serve as a raw material to further react with isooctanol to prepare DOTP, and high-valued conversion and resource utilization of the white mud are achieved through the process.

The invention belongs to the technical field of green cyclic regeneration of waste bottle flakes, and relates to a method for realizing high-purity and high-yield preparation of BHET (butylated hydroxytoluene) by depolymerizing waste PET (polyethylene terephthalate), which comprises the following steps: firstly, carrying out ethylene glycol alcoholysis reaction on the waste PET bottle flakes to obtain alcoholysis liquid; the alcoholysis liquid is sequentially subjected to activated carbon decoloration, cooling crystallization (crystals in the cooled and crystallized material are in a short column shape) and solid-liquid separation to obtain a crystal mixture containing BHET, a small amount of oligomer and a small amount of ethylene glycol, then the crystal mixture containing BHET, a small amount of oligomer and a small amount of ethylene glycol is placed in a film evaporator, residual ethylene glycol is removed in a vacuum state, and the solid-liquid separation product is obtained. And finally, carrying out melt crystallization on the crystal substance containing BHET and the oligomer, and collecting a melt to obtain BHET. The purity of BHET is greater than 99%, and the yield is greater than 90%. According to the method disclosed by the invention, high-purity and high-yield preparation of BHET can be realized, the obtained BHET monomer can be directly used as a raw material for regenerating PET polyester, and a new path is provided for high-quality recovery of waste PET bottle flakes.

The invention relates to the field of maleic anhydride process solvent regeneration, and discloses an oil-water mixed emulsion separation device, an oil-water mixed emulsion separation method, a maleic anhydride process solvent regeneration method and a maleic anhydride process solvent regeneration system. The oil-water mixed emulsion separation device is of a horizontal structure and comprises a barrel and a raw material liquid inlet formed in one side of the barrel, and an oil-water pre-separation area, an oil-water coalescence area and a settling separation area which are communicated are sequentially arranged in the barrel from one side of the raw material liquid inlet. The maleic anhydride process solvent regeneration method and system provided by the invention have the advantages of simple process flow, simple device, continuous operation, stable operation, low device energy consumption, high solvent regeneration efficiency, high regeneration quality, low water content in the separated solvent, low solvent content in wastewater and the like. The solvent washing and impurity removal process can be fully carried out, meanwhile, the solvent and wastewater are rapidly separated, the loss of the solvent in the technological process can be reduced, meanwhile, the wastewater treatment difficulty is reduced, and the economic benefits of a refinery plant are greatly improved.

The invention belongs to the technical field of grease biological enzyme method synthesis, and particularly relates to a method for synthesizing sn-2 site triglyceride with high DHA content by catalyzing algae oil through lipase and application of the method. According to the method, DHA-containing algal oil, sunflower seed fully-hydrolyzed oil and medium-chain and long-chain fatty acid are used as raw materials, and the DHA-containing algal oil is prepared through a multi-step enzyme method. By means of the method, the content of sn-2DHA in the total DHA can be stably increased, and the increasing proportion can reach 60% or above.

A composition is described comprising a mixture of at least one cetylated fatty acid or a mixture of cetylated fatty acids and an antioxidant in reduced percentages by weight, and related methods for treatment of arthritis and of inflammatory joint and musculoskeletal pain. Furthermore a composition is described comprising a mixture of at least one cetylated fatty acid or a mixture of cetylated fatty acids and, optionally, an antioxidant, and related treatment methods for protecting the gastric mucosa and for regulating the blood glucose levels. Additionally, a method is described for preparing the at least one cetylated fatty acid or mixture of cetylated fatty acids and for preparing compositions comprising the cetylated fatty acids and the antioxidant.

The invention relates to the technical field of wind power gear oil, in particular to synthetic ester wind power gear oil base oil and a preparation method thereof, and the synthetic ester wind power gear oil base oil is prepared according to the following steps: mixing neopentyl polyol, dicarboxylic acid, monobasic fatty alcohol and monobasic carboxylic acid according to a specific proportion and sequence, adopting inert gas as a water-carrying agent and shielding gas, and reacting at the temperature of 60-80 DEG C for 1-2 hours to obtain the synthetic ester wind power gear oil base oil. And carrying out esterification reaction under the action of a tin-based esterification catalyst, and carrying out liquid-solid separation on the esterification product and the catalyst while the esterification product is hot. The synthetic ester wind power gear oil base oil disclosed by the invention has excellent viscosity-temperature performance, low-temperature performance and biodegradability, belongs to environment-friendly lubricating oil base oil, and can meet the lubrication protection requirements under harsh working conditions; the problems that existing special gear oil for wind power generation is insufficient in comprehensive performance, short in service life, prone to causing environmental pollution and the like can be effectively solved.

The present application relates to the field of biochemical engineering, and discloses a composition containing eicosapentaenoic acid ethyl ester, a preparation method therefor, and a use thereof. The preparation method for the composition containing eicosapentaenoic acid ethyl ester disclosed in the present application comprises the following steps: transesterification, multi-stage molecular distillation, urea inclusion, rectification and preparative chromatographic purification. In the present application, by means of performing molecular distillation and urea inclusion before rectification, a liquid mixture can be separated, removing high-boiling-point saturated fatty acid ethyl esters and most fatty acid ethyl esters with one double bond, thereby effectively lowering the rectification temperature and preventing the formation of excessive isomers. Furthermore, the composition obtained by means of the described steps can achieve an eicosapentaenoic acid ethyl ester content of as high as 96.5 area% to 99.5 area%, with low isomer and impurity content, making it suitable for use in the preparation of food and pharmaceuticals.

The invention relates to the technical field of organic synthesis, and particularly discloses a synthesis method of bis-diglycerol polyacyl adipate-2, which comprises the following synthesis steps: S1, stirring and mixing isostearic acid, caprylic capric acid, stearic acid and 12-hydroxystearic acid to obtain total fatty acid; s2, stirring and mixing dipolyglycerol, adipic acid, total fatty acid and an organic tin catalyst, and starting to heat; s3, the initial reaction temperature is controlled to be 140-150 DEG C, the reaction vacuum degree is 0.04 MPa, the heating rate is controlled to be 2-10 DEG C / h in the reaction process, the temperature is increased to 190-210 DEG C, then the reaction vacuum degree is converted into 0.1 MPa, and the heat preservation reaction is conducted for 4-10 h; after the reaction is completed, sampling and measuring an acid value; and S4, after the acid value reaches the standard, carrying out heat preservation reaction for 2-5 hours under a high-vacuum condition, cooling, and filtering to obtain the product. The organic tin catalyst is used, the esterification period is shortened, the conversion rate is increased, and the production cost is reduced.

The invention relates to a method for efficiently depolymerizing, decoloring and purifying colored waste polyester, which is characterized by comprising the following steps of: (1) feeding waste polyester, a transition metal salt catalyst and ethylene glycol into a reactor, fully mixing and reacting to obtain a depolymerization solution; (2) adding deionized water into the obtained depolymerization liquid, and continuously stirring to ensure that the whole system still has better flowability at the temperature, so as to obtain a diluent of the depolymerization liquid at the temperature; (3) peroxysulfate is added into the diluent of the depolymerization liquid, and the system begins to be subjected to a decolorization reaction; and (4) recrystallizing the solution obtained after the decoloration reaction is finished, and filtering to obtain the recrystallized depolymerized monomer ethylene glycol terephthalate and recovered ethylene glycol. The depolymerization and decoloration purification method has the advantages of environmental protection, high efficiency and low cost.

The invention discloses a preparation method of an alcoholysis catalyst and application of the alcoholysis catalyst in regenerated DMT synthesis. Zinc, nickel and cobalt metal sources are synchronously loaded on a two-dimensional MXene material through an impregnation method, and then through hydrothermal treatment, calcination and carbon nitrogen compound encapsulation treatment, the self-assembled heterogeneous nitrogen-doped MXene-zinc / nickel / cobalt NC catalyst is prepared and used for ethylene glycol alcoholysis reaction of waste polyester textiles. The method comprises the following steps: carrying out ester exchange reaction on an alcoholysis product obtained by carrying out alcoholysis on the waste polyester textiles by using ethylene glycol and methanol to prepare impurity-containing regenerated DMT, and purifying the regenerated DMT through a reduced pressure sublimation method by utilizing the phase change characteristic of DMT crystals, thereby realizing the preparation of the high-purity regenerated DMT. The heterogeneous alcoholysis catalyst prepared by the method is high in catalytic activity, small in pollution, simple to prepare and easy to separate and recover, meanwhile, the purification process of the ester exchange product DMT is simplified, and the energy consumption and the cost are reduced.

Disclosed in the present invention are a refining device for medicinal ethyl oleate and a use method therefor. The refining device comprises a preset negative pressure vacuum batching apparatus, a vacuum pump, a dynamically adjustable memory reaction kettle, a discharge three-way pipe, a plate-frame circulating filtration assembly, a bag-type filter, a preset negative pressure vacuum finished product storage tank, a second centrifugal pump, and a barrel-type cartridge filter. The preset negative pressure vacuum batching apparatus is in communication with the dynamically adjustable memory reaction kettle; the discharge three-way pipe is disposed at a lower end of the dynamically adjustable memory reaction kettle; an input end of the plate-frame circulating filtration assembly and an input end of the bag-type filter are respectively in communication with and arranged at the other two ends of the discharge three-way pipe; the preset negative pressure vacuum finished product storage tank is in communication with and arranged at an output end of the bag-type filter. The present invention pertains to the field of ethyl oleate production, and specifically provides a refining device for medicinal ethyl oleate and a use method therefor, which overcomes the inability of existing ethyl oleate refining devices to control the peroxide value physicochemical index of the product, and facilitates more uniform and thorough stirring and mixing of materials.

The invention provides a method for preparing high-purity acrylate by removing trace impurity aldehyde, which comprises the following steps: mixing crude acrylate with a polymerization inhibitor to form an organic phase; adding an aqueous solution of a dealdehyding agent into the organic phase to form an oil-water two-phase system; the oil-water two-phase system is forcibly stirred for 0.1-2.0 hours at the temperature of 20-40 DEG C, so that the impurity aldehyde and the dealdehyding agent are subjected to nucleophilic addition reaction, and a generated aldehyde-dealdehyding agent addition product is dissolved in a water phase; standing and layering the reacted material, separating and removing a water phase to obtain an organic phase without impurities; carrying out reduced pressure rectification on the organic phase after impurity removal to obtain a high-purity acrylate product with the total aldehyde content lower than 50ppm; wherein the aldehyde removing agent is sodium hydrogen sulfite, potassium hydrogen sulfite, calcium hydrogen sulfite, ammonium hydrogen sulfite or a mixture of any two or more of the sodium hydrogen sulfite, the potassium hydrogen sulfite, the calcium hydrogen sulfite and the ammonium hydrogen sulfite. The method is efficient, economical, free of solid deposition and easy for industrial continuous operation.

The utility model discloses a device for recovering ethyl acetate in an adhesive production process, which comprises a dehydrating tower, a drying tower, a gas-liquid separation tower, a gas-liquid separation tower, a gas-liquid separation tower and a gas-liquid separation tower, the layering device is connected with the top of the dehydrating tower and is used for layering condensate of tower top components of the dehydrating tower; the deacidification tower is connected with a discharge hole in the bottom of the layering device and is used for removing the layered oil phase component and acetic acid in the oil phase feed liquid; the membrane component is connected with the top of the deacidification tower and is used for carrying out dehydration treatment; and the refining tower is connected with the top of the membrane component and is used for removing an ethanol light component in the feed liquid to obtain an ethyl acetate product. According to the device disclosed by the utility model, the layering pretreatment is combined with the multi-stage rectification, membrane separation and energy collaborative optimization technology, so that efficient recovery of ethyl acetate and green collaboration of waste liquid treatment are realized; the whole process adopts a multi-stage energy recovery design, so that the steam consumption and energy consumption cost are remarkably reduced, and meanwhile, the organic waste liquid discharge is reduced.

The invention discloses an environment-friendly p-hydroxyacetophenone production process, and particularly relates to the technical field of p-hydroxyacetophenone production, which comprises the following steps: step 1, respectively putting dissolved phenol and acetic anhydride into a synthesis reaction kettle, stirring and heating to 128 DEG C, refluxing for 5 hours at normal pressure, then carrying out heat preservation treatment, and reacting to generate phenyl acetate; 2, cooling phenyl acetate generated by the reaction to 60 DEG C, washing with water, standing for layering, and discharging phenyl acetate to generate a small amount of by-products containing 90% of glacial acetic acid; and 3, pumping the dehydrated phenyl acetate into a reaction kettle by a vacuum pump, gradually adding aluminum trichloride, then adding acidic water for hydrolysis, cooling to 60 DEG C, and discharging to obtain a liquid crude product of p-hydroxyacetophenone and o-hydroxyacetophenone. The environment-friendly performance of implementation is good, conditions needed by the technology are mild, the unstable condition is not prone to occurring in the operation process, and the practical application effect of the method is ideal.

A composition is described comprising a mixture of at least one cetylated fatty acid or a mixture of cetylated fatty acids and an antioxidant in reduced percentages by weight, and related methods for treatment of arthritis and of inflammatory joint and musculoskeletal pain. Furthermore a composition is described comprising a mixture of at least one cetylated fatty acid or a mixture of cetylated fatty acids and, optionally, an antioxidant, and related treatment methods for protecting the gastric mucosa and for regulating the blood glucose levels. Additionally, a method is described for preparing the at least one cetylated fatty acid or mixture of cetylated fatty acids and for preparing compositions comprising the cetylated fatty acids and the antioxidant.

The invention relates to the technical field of n-butyl acrylate recovery, in particular to an n-butyl acrylate condensation recovery washing system and a washing process thereof.The n-butyl acrylate condensation recovery washing system comprises a condensation recovery device, a controller, a washing device and a supporting frame, and the condensation recovery device comprises a condensation tank, a cooler, a cooling pump and a conveying pipe. The metal organic framework adsorption particles and the pulse back flushing device are combined, so that specific adsorption of n-butyl acrylate molecules is realized, n-butyl acrylate waste gas released by heating enters a plurality of spiral condensation pipes, the heat exchange area of the waste gas and cooling liquid is increased, efficient recovery of liquid n-butyl acrylate is realized, and the recovery rate of the liquid n-butyl acrylate is increased. A hollow fiber membrane in the washing device enables fine gas flow to form thin layer flow on the surface of a membrane hole, and a plurality of nozzles realize uniform dispersion of micron-sized liquid drops in a spiral washing pipe, so that water is in full contact with waste gas, and therefore, spirally rising thin layer flow gas is washed with water, and residual n-butyl acrylate in the waste gas is removed.

The invention discloses a method for recovering monohydroxyethyl terephthalate from a polyester textile, which comprises the following steps: carrying out multi-stage decolorizing treatment on the polyester textile to be recovered by using ethylene glycol as a decolorizing agent to obtain the decolorized polyester textile; mixing a depolymerization catalyst, a sodium phosphate buffer solution and the decolored polyester textile, and carrying out a depolymerization reaction to obtain a depolymerization solution; adding ethyl acetate into the depolymerization liquid for extraction, rotary evaporation concentration and sublimation treatment to obtain monohydroxyethyl terephthalate. According to the method for recycling the monohydroxyethyl terephthalate from the polyester textile, the decolorization rate of the polyester textile can reach 90% or above, the purity of the recycled monohydroxyethyl terephthalate is larger than 98%, and the whiteness of the recycled monohydroxyethyl terephthalate is larger than 97%. The method for recycling the monohydroxyethyl terephthalate from the polyester textile, provided by the invention, is an efficient, economical and green new method for recycling the polyester, and the recycling of the polyester textile is realized.

The utility model discloses a separation device for ethyl acetate and cyclohexane, which belongs to the technical field of separation and purification, solves the problems of incapability of large-scale separation, high process difficulty and poor separation effect in the prior art, and comprises an extractive distillation tower, the upper part is provided with a polyol solvent inlet, the top is connected with a first condenser, the outlet of the first condenser is connected with a cyclohexane outlet on the other side of the upper part of the extractive distillation tower, and the cyclohexane outlet is connected with a re-separation device. According to the device disclosed by the utility model, the problem of azeotropy of ethyl acetate and cyclohexane is solved by adding polar polyol, the relative volatility of the ethyl acetate and the cyclohexane is changed, and large-scale efficient separation of a mixture of the ethyl acetate and the cyclohexane is realized; the dissolubility of cyclohexane, sodium acetate and ethanol in water is different, so that the separation effect of cyclohexane is further improved, and the whole device is simple in structure.

The invention relates to the technical field of separation and extraction, and provides an extraction method and application of chlorogenic acid in honeysuckle. The invention relates to a method for extracting chlorogenic acid from honeysuckle, which comprises the following steps: mixing honeysuckle powder with an ethanol solution, and carrying out ultrasonic enzymolysis; carrying out suction filtration to obtain a supernatant A containing chlorogenic acid and medicine residues I, and adding an ethanol solution into the medicine residues I to carry out microwave extraction; performing suction filtration to obtain a filtrate B and medicine residues II, mixing the medicine residues II with a citric acid-sodium citrate buffer solution, adding a Fe3O4-coated GO-coated MOFs nano-catalyst, performing hydrothermal reaction, performing suction filtration to obtain hydrolysate, and combining the hydrolysate with the supernate A and the filtrate B to obtain a total extraction solution; concentrating the total extracting solution under reduced pressure, and recovering ethanol until the volume of the concentrated solution is about 1 / 6-1 / 8 of the original volume; and concentrating under reduced pressure to thick paste, and drying to obtain the chlorogenic acid. The extraction efficiency and yield of chlorogenic acid are improved, and the utilization rate of raw materials and the product purity are improved.

The invention relates to the technical field of medicine research of Cichorium glandulosum, in particular to a Cichorium glandulosum extract, a compound separated from the Cichorium glandulosum extract and an extraction method and application thereof.The Cichorium glandulosum extract comprises Cichorium glandulosum lactone A, Cichorium glandulosum lactone B, Cichorium glandulosum picroside and Cichorium glandulosum. And dissolving the crude extract with a solvent, separating, carrying out gradient elution, carrying out gradient elution on the obtained eluate through ODS column chromatography, and carrying out gradient elution on the obtained eluate through high performance liquid chromatography separation to obtain the cichorium glandulosum extract. According to the invention, the cichorium glandulosum extract and the compound separated from the cichorium glandulosum extract are extracted by taking the whole herb of cichorium glandulosum as a raw material for the first time, and the inhibition effect of the compounds, namely cichorium glandulosum lactone A, cichorium glandulosum lactone B, cichorium glandulosum picroside and cichorium glandulosum, separated from the cichorium glandulosum extract on RAW264.7 cells is disclosed for the first time. Therefore, the compound can be applied to preparation of anti-inflammation or / and inflammation treatment medicines.

The present invention relates to the technical field of traditional Chinese medicine extraction and detection, and particularly relates to an extraction method for tannin fractions in fresh Terminalia chebula, an extraction and purification method for tannin compounds, and a detection method. The extraction method for tannin fractions in fresh Terminalia chebula provided by the present invention uses fresh Terminalia chebula fruits as raw materials, and successively performs stone removal, water-added juicing, and ultrasonic extraction, which can not only avoid the degradation of tannic acid, but also obtain an ideal extraction rate, and has a simple process, low energy consumption, and short time consumption. The present invention also provides an extraction and purification method for tannin compounds. Through macroporous adsorption resin elution, alcohol precipitation, octadecylsilyl reverse-phase packing column elution, and preparative chromatography separation, high-purity chebulic acid, gallic acid, 4-galloylshikimic acid, and 5-galloylshikimic acid can be obtained. The detection method provided by the present invention can detect more than ten tannin components, has high efficiency, and helps to provide data support for the in-depth study of tannin components in Terminalia chebula.

The invention discloses a method for extracting chlorogenic acid from sunflower seed meal by using a deep eutectic solvent. The method comprises the following steps: detecting crude protein content of sunflower seed meal; crushing to obtain sunflower seed meal particles; uniformly mixing the sunflower seed meal particles with a deep eutectic solvent according to a mass-volume ratio of 1g: (5-5) mL, and soaking for 30-90 minutes; the selection of the eutectic solvent is determined according to the content of crude protein; when the content of the crude protein is 35-40%, the hydrogen bond acceptor and the hydrogen bond donor are mixed according to the molar ratio of (1.5-1.8): 1; when the concentration is 30-35%, the hydrogen bond acceptor and the hydrogen bond donor are mixed according to the molar ratio of (1.8-2): 1; when the content of the hydrogen bond acceptor is 40-45%, the hydrogen bond acceptor and the hydrogen bond donor are mixed according to the molar ratio of (1.0-1.5): 1, the hydrogen bond acceptor is L-proline or choline chloride, and the hydrogen bond donor is any one of urea, D-tartaric acid and acetamide; after soaking is completed, microwave treatment is carried out for 1-5 min under the microwave conditions of 30-70 DEG C and 500-900 W, filtering and purifying are carried out, and the chlorogenic acid extract is obtained. According to the method, under the assistance of the eutectic solvent and microwaves, the extraction rate of the chlorogenic acid can be increased, and the extraction time can be shortened.

The utility model provides a recovery system which comprises a reactor, an absorption tower, a condenser, a first compressor, a crude product storage tank, a second compressor, a rectifying tower and a gas-liquid separation tank, the top of the reactor is communicated with a first pipeline, the bottom of the absorption tower is communicated with the bottom of the reactor through a second pipeline, and the top of the absorption tower is communicated with the first pipeline through a third pipeline; the condenser is installed on the second pipeline, the first compressor is installed on the third pipeline, the crude product storage tank is communicated with the bottom of the absorption tower through a fourth pipeline and a fifth pipeline, the second compressor is installed on the fifth pipeline, and the middle of the rectifying tower is communicated with the crude product storage tank through a sixth pipeline; the gas-liquid separation tank is communicated with the rectifying tower through at least two eighth pipelines so as to be used for separating rectified materials and realizing reflux of the rectifying tower, and the gas-liquid separation tank is communicated with the crude product storage tank through a ninth pipeline so as to be used for guiding separated gas into the crude product storage tank. The recovery system provided by the utility model is beneficial to improving the raw material utilization rate so as to reduce the production cost.

The application discloses an EBR solvent and a rectification preparation process thereof, and belongs to the technical field of semiconductor material processing; wherein the EBR solvent comprises the following components in percentage: 95-98% of propylene glycol methyl ether acetate and 2-5% of propylene glyyl methyl ether. The EBR solvent is prepared by rectification recovery of waste liquid generated in a dilution cleaning process, and the main steps are as follows: S1, sedimentation filtration: filtering solid impurities in the waste liquid; S2, preliminary water removal: removing part of water in the filtered waste liquid through a common distillation tank to obtain primary waste liquid raw material; S3, feeding: introducing the primary waste liquid raw material into a rectification tower for intermittent distillation purification; S4, water removal: removing water in the primary waste liquid raw material by using an extractant; S5, extractant reflux; S6, extractant extraction: after the water is removed, the extractant is extracted; and S7, EBR solvent extraction. The application solves the problem that the purity of the effective component EBR solvent in the photoresist cleaning waste liquid is not high, and the recycling effect is poor.

This invention relates to a drug for treating neuroinflammation and its application, belonging to the field of pharmaceutical technology. This invention isolates and identifies novel terphenyl compounds from the acetone extract of *Thelephora ganbajun* Zang, and provides a method for the extraction and separation of these new compounds. The acetone extract is obtained by extracting dried fruiting bodies of *Thelephora ganbajun* Zang with acetone, and then separated by normal-phase silica gel column chromatography, reversed-phase silica gel (ODS) column chromatography, and high-performance liquid chromatography (HPLC). The novel compounds of this invention can serve as potential lead compounds for the preparation of drugs for treating neuroinflammation-related diseases.