339results about How to "Promote dissolution" patented technology

The invention discloses a waste battery lithium iron phosphate positive electrode black powder recovery method which comprises the following steps: S1, activating and roasting positive electrode black powder to obtain pretreated black powder, and mixing and ball-milling the pretreated black powder, an oxidizing agent and an activating solvent to obtain pre-oxidized black powder; s3, the pre-oxidized black powder and an inorganic solvent are mixed for a leaching reaction, and mother liquor A and iron phosphate slag are obtained; s4, adding a pH regulator into the mother liquor A to remove impurities so as to obtain mother liquor B; s5, mixing and purifying the iron phosphate slag and phosphoric acid to obtain crude iron phosphate, washing the crude iron phosphate with water, and adding a complexing agent for further purification to obtain high-purity iron phosphate; and S6, concentrating the mother liquor B to obtain concentrated mother liquor C, and introducing carbon dioxide into the concentrated mother liquor C to precipitate lithium to obtain the battery-grade lithium carbonate. According to the process, iron, lithium, phosphorus and other elements in the positive electrode black powder are efficiently separated and recycled, low-acid or acid-free green leaching of lithium is achieved, the lithium leaching rate is larger than or equal to 98.0%, and the purity of obtained iron phosphate is larger than or equal to 99.3%; the purity of lithium carbonate is greater than or equal to 99.0%.

The invention provides a composite exciting agent and application thereof, and relates to the technical field of exciting agents, and the composite exciting agent comprises an alkaline exciting agent, a calcium source exciting agent and an auxiliary exciting component. Industrial solid waste materials such as the slag, the fly ash and the steel slag can work cooperatively in the same system, the gelling performance, the mechanical strength and the durability of the material are remarkably improved, and the purposes of solid waste resource utilization and low-carbon environmental protection are achieved.

The invention discloses a cordyceps militaris mycelium fermentation product as well as a preparation method and application thereof, and belongs to the technical field of daily cosmetics. A preparation method of a cordyceps militaris mycelium fermentation product comprises the following steps: taking cordyceps militaris mycelium as a strain, inoculating the strain into a liquid culture medium, and carrying out enlarged culture to obtain a seed solution; transferring the seed solution into a fermentation tank containing a liquid culture medium, introducing oxygen, stirring, and fermenting for a certain time to obtain a fermentation solution; adding an industrial compound enzyme into the fermentation liquid, and heating and stirring to obtain an enzymolysis treatment liquid; adding a certain amount of alcoholic solution into the enzymolysis treatment liquid, and fully and uniformly mixing to obtain alcohol precipitation liquid; and separating the alcohol precipitation liquid, filtering the supernatant, and collecting the clarified filtrate to obtain the cordyceps militaris mycelium fermentation product. The specific compound enzyme which is low in price and suitable for industrialization is adopted, active substances of cordyceps militaris are fully released, and the effect of the product in cosmetics is improved.

The invention relates to a method for extracting high-purity astragalus polysaccharide. The method comprises the following specific steps: washing astragalus, drying and crushing into coarse powder; under a certain solid-liquid ratio, extracting astragalus polysaccharide by using ultrasonic waves; carrying out mixed enzymolysis on the extracting solution and cellulase, and terminating enzyme reaction through heating; and mixing the enzymatic hydrolysate with specific molecularly imprinted polymers (MIPs), specifically adsorbing the astragalus polysaccharide through a molecular recognition effect, and eluting and purifying by using a mixed solution of water and ethanol. In the preparation process of the MIPs, oligosaccharide fragments of astragalus polysaccharide, acrylamide, ethylene glycol dimethacrylate, potassium persulfate and lauryl sodium sulfate are dissolved in methanol, and free radical polymerization reaction is carried out under the protection of nitrogen. Experimental results show that the purity and the extraction rate of the astragalus polysaccharide extracted by the method are remarkably improved, and the method has the advantages of simplicity and convenience in operation, high efficiency, economy, environmental protection and the like.

The invention belongs to the field of comprehensive utilization of plant resources, and relates to a method for extracting amide components in Chinese prickly ash through a natural eutectic solvent assisted by superfine grinding. The method comprises the following steps: firstly, collecting a pepper raw material, drying the pepper raw material by a heat pump, and performing high-speed crushing and low-temperature superfine crushing to obtain pepper superfine powder; preparing a natural eutectic solvent from a hydrogen bond acceptor and a hydrogen bond donor, mixing the natural eutectic solvent with the pepper superfine powder, performing microwave-assisted extraction, centrifugally collecting supernate after extraction, and completing primary extraction; adding NDES into the remaining precipitate, and repeatedly extracting according to the primary extraction step; and repeatedly extracting for several times, combining the supernate, and finally concentrating and filtering with a filter membrane to obtain an extracting solution, thereby realizing the extraction of the amide components in the Chinese prickly ash. The method provided by the invention overcomes the defects of low extraction efficiency, environmental pollution caused by an extraction reagent, high equipment cost and the like in the existing technical means for extracting the amide components in the Chinese prickly ash, realizes efficient and green extraction of the amide components in the Chinese prickly ash, and has a wide application prospect.

The invention relates to a silicon-based ceramic, a preparation method and application thereof, and a removal method of a ceramic core for titanium alloy casting, the raw materials of the silicon-based ceramic comprise solid powder and a binder, the solid powder comprises 60-100 wt% of silicon dioxide, 0-10 wt% of mullite, 0-10 wt% of kaolin and 0-20 wt% of yttrium oxide; the mass ratio of the solid powder to the binder is 1: (0.01-0.05); the contents of mullite, kaolin and yttrium oxide are all greater than 0; the silicon-based ceramic provided by the invention has excellent room high temperature mechanical properties and good dissolution performance.

The invention provides a co-amorphous substance co-loaded with trilobatin and glycyrrhizic acid as natural sweeteners, which does not need to add any auxiliary materials, does not relate to special processes and equipment, and is simple, convenient and efficient in preparation method, easy to industrialize and low in cost. According to the double-drug-loading co-amorphous substance prepared by the invention, the water solubility of the two components can be remarkably improved at the same time, the sweetness of the double-drug-loading co-amorphous substance is superior to that of the original components, and the double-drug-loading co-amorphous substance can be used for improving the solubility of other insoluble components; the compound can be used as a multifunctional flavoring agent and has a wide application prospect.

The invention discloses a gastrodia elata polypeptide extraction process, and belongs to the technical field of polypeptide extraction. According to the method, gastrodia elata cell membranes are broken through acetone pretreatment, so that protein and lipid are dissociated, trimethylsilyl ether passivates active groups, immobilized enzyme decomposes cellulose and adipose tissues through normal-temperature enzymolysis, a protein stabilizer prevents oxidation and inhibits enzyme activity, differential pressure extraction is combined with a sodium pyrophosphate buffer solution, polypeptide is promoted to be dissolved out, and activity is maintained; the high extraction rate of the gastrodia elata polypeptide and low-active group destructiveness are realized. Reaction sites and binding force are increased by epoxy groups on the surface of an immobilized enzyme carrier prepared by modifying corn starch, enzyme molecules are stable and appropriate due to good biocompatibility, enzyme molecule conformation is optimized through covalent binding, a rigid structure is enhanced, enzyme activity is kept at a high level for a long time, continuous and efficient enzymolysis is performed in gastrodia elata polypeptide extraction, and the gastrodia elata polypeptide extraction efficiency is improved. Compared with the traditional free enzyme, the gastrodia elata polypeptide enzyme has the advantages that the enzyme use cost is reduced, the enzyme consumption and waste generation are reduced, and an efficient and economical scheme is provided for gastrodia elata polypeptide extraction.

The invention discloses a green and environment-friendly sodium ion battery hard carbon negative electrode material preparation method, which comprises: S1, pre-carbonization: pre-carbonizing a biomass raw material under a protective atmosphere to obtain a pre-carbonized material; s2, granularity control treatment: crushing and refining the pre-carbonized material obtained in the step S1 to obtain a refined pre-carbonized material; s3, preparation of a precursor material: stirring and dispersing the refined pre-carbonized material obtained in the step S2, an acid solution and deionized water to form precursor slurry, carrying out temperature-controlled sanding, and then carrying out solid-liquid separation, water washing and drying to obtain the precursor material; s4, high-temperature sintering: performing high-temperature carbonization on the precursor material obtained in the step S3 in a protective atmosphere to obtain a purified hard carbon material; and S5, high-temperature carbon coating: carrying out high-temperature carbon coating on the surface of the purified hard carbon material obtained in the step S4 to obtain the surface-coated hard carbon negative electrode material. The preparation method has the characteristics of greenness, environmental protection, excellent electrochemical performance and good processability.

The invention relates to the technical field of oral solid preparations, in particular to a high-bioavailability coenzyme Q10 tablet and a preparation method thereof. The coenzyme Q10 tablet comprises an active component coenzyme Q10, a filler, an adhesive, a disintegrating agent, a lubricant and a high polymer material, compared with the prior art, hydroxyethyl methylcellulose and hydroxypropyl methylcellulose succinate are mixed according to a certain mass ratio to serve as a high polymer carrier material, the prepared coenzyme Q10 tablet can be rapidly dissolved out in vitro, and the coenzyme Q10 tablet has the advantages that the preparation process is simple, and the cost is low. Moreover, the stability of the medicine can be improved, the medicine can be rapidly absorbed in vivo after being orally taken, the oral bioavailability of the coenzyme Q10 is greatly improved, and a preparation process of the preparation is simple to operate, good in reproducibility and suitable for industrial production.

The invention relates to the technical field of sludge dewatering treatment, in particular to a method for improving sludge dewatering performance through low-temperature hydrothermal coupling of a deep eutectic solvent, which comprises the following steps: putting a hydrogen bond donor and a hydrogen bond acceptor into a reactor, heating and stirring to obtain the deep eutectic solvent; taking sludge to be treated, adding the deep eutectic solvent, and stirring and mixing for reaction; and putting the sludge added with the deep eutectic solvent into a thermal hydrolysis reaction device with a stirring function, carrying out thermal hydrolysis treatment, and continuously stirring to complete the sludge dewatering process. By adding specific DES into the sludge, the thermal hydrolysis treatment temperature can be reduced, and at the lower temperature (lt; the method realizes high-efficiency dehydration at the temperature of 100 DEG C, not only reduces the treatment cost, but also improves the safety, and has extremely profound social significance and economic value.

The invention discloses a preparation method of Chuzhou chrysanthemum water-soluble polysaccharide and application of the Chuzhou chrysanthemum water-soluble polysaccharide as a rice juice stabilizer, and belongs to the technical field of Chuzhou chrysanthemum polysaccharide extraction.The preparation method comprises the steps that firstly, Chuzhou chrysanthemum is soaked and pretreated with ethyl alcohol, then the ethyl alcohol is removed, and pretreated chrysanthemum filter residues are obtained; 2, the obtained pretreated chrysanthemum filter residues are subjected to water extraction, a sodium bicarbonate water solution serves as a water extraction system, and first-step treatment is conducted for 5-10 min under the dual-action conditions of 10-15 KHz ultrasonic treatment and 200-300 Mpa pressure; then carrying out intermittent 10-15 KHz ultrasonic treatment, and carrying out second-step treatment for at least 1 hour under the conditions that the air pressure is 50-60 kpa and the temperature is 80-86 DEG C, so as to obtain a water extraction filtrate; 3, mixing the obtained water extraction filtrate with ethanol, and precipitating, wherein the ethanol concentration in the mixed system is 35-50%; and 4, collecting the precipitate, dissolving the precipitate, dialyzing with running water, and freeze-drying to obtain the water-soluble polysaccharide of Chuzhou chrysanthemum. According to the method, the polysaccharide obtaining rate is increased.

The invention provides a composite mineral admixture based on iron ore tailing mud and a preparation method thereof, and the composite mineral admixture comprises the following raw materials by weight: 30-40 parts of activated iron ore tailing mud, 5-10 parts of layered ultrafine powder, 5-10 parts of a methacrylic acid-cellulose copolymer, 5-7 parts of limestone powder, 1-3 parts of a composite grinding aid, and 1-3 parts of a composite activator. According to the composite mineral admixture disclosed by the invention, the mixing amount of the composite mineral admixture in cement can be increased to the maximum extent, the use amount of cement clinker is reduced, the production cost of the cement is reduced, the composite cement has more excellent mechanical properties, volume stability and durability, and the composite mineral admixture plays a role similar to a crystal nucleus effect in a cement hydration process; and meanwhile, the hydration products tend to be uniformly distributed in the whole interface transition area, the hydration products with better stability are generated, and the anti-permeability performance is improved.

The preparation method comprises the following steps: degreasing polygonatum cyrtonema leaf superfine powder, sequentially carrying out ultrasonic-assisted enzymolysis treatment on cellulase, xylanase, high-temperature-resistant alpha-amylase, papain and saccharifying enzyme, and carrying out alcohol precipitation, dialysis and vacuum freeze drying treatment to obtain the polygonatum cyrtonema leaf polysaccharide. The polygonatum cyrtonema leaf enzyme extraction crude polysaccharide is obtained; and separating the enzyme-extracted crude polysaccharide through a cellulose column, and purifying through a sephadex column to obtain the polygonatum cyrtonema leaf enzyme-extracted polysaccharide. Polysaccharide in polygonatum cyrtonema leaves is extracted through ultrasonic-assisted compound enzyme, single pure polysaccharide is obtained through alcohol precipitation, dialysis, cellulose column chromatography and gel column chromatography, and the purity can reach 99.86%; the obtained enzyme extraction polysaccharide has good anti-cancer activity, can significantly inhibit proliferation of breast cancer cells and colorectal cancer cells, has the characteristics of good biocompatibility, strong specificity, low toxic and side effects and the like, and has wide application prospects.

The invention provides gasified slag sprayed concrete which is prepared from the following components in parts by mass: 320 to 750 parts of activated gasified slag silica fume compound, 150 to 550 parts of medium sand, 300 to 500 parts of Portland cement, 50 to 100 parts of fly ash, 500 to 700 parts of gravel, 10 to 20 parts of water reducing agent, 10 to 25 parts of accelerator and 140 to 200 parts of water, wherein the raw materials of the activated gasification slag silica fume compound comprise gasification slag, silica fume and salt-containing wastewater, the mass ratio of the gasification slag to the silica fume to the salt-containing wastewater is (30-70): (1-3): (1-2), the concentration of chloride ions in the salt-containing wastewater is 4000-4500 mg / L, and the concentration of sulfate radicals in the salt-containing wastewater is 69000-78000 mg / L. According to the gasified slag sprayed concrete provided by the invention, the initial setting time and the rebound rate can be effectively reduced, and meanwhile, the compressive strength can be enhanced.

The invention discloses a separation preparation method and application of cattle hide collagen, and belongs to the technical field of collagen preparation. According to the method, the cow leather is subjected to freezing and two-step pre-fermentation treatment, so that the cow leather is fully swelled, dissolution of collagen is promoted, and the extraction rate is increased; an organic weak acid medium and a compound enzyme are used for co-extraction subsequently, so that the collagen is fully dissolved out, the content of impurity protein is reduced, and the purity and the extraction rate of the collagen are improved; the process is high in cowhide protein extraction rate, adopts biotechnology extraction in the whole process, avoids negative effects of strong acid and strong alkali on the collagen, is safe, environment-friendly and pollution-free, is also suitable for extraction of collagen in other raw materials, and is worthy of large-scale popularization and application.

The invention provides a mulberry leaf extract rich in sugar inhibition components and a preparation method and application thereof, and the method comprises the following steps: S1, after mulberry leaves are subjected to water extraction, collecting a first water extract and water extraction residues; s2, fermenting the water extraction residues, performing water extraction, and collecting a second water extraction solution; s3, mixing the first water extract and the second water extract, and then performing flocculation, microfiltration, ultrafiltration, membrane concentration and drying; a flocculating agent in the flocculation process is modified chitosan; the modified chitosan is prepared from the following raw materials in parts by weight: 10 parts of chitosan, 1-2 parts of aldehyde sucrose and 3-4 parts of amino polyethylene glycol. According to the preparation method, the steps of the preparation process are controlled, so that the mulberry leaf extract with high sugar inhibition component content is prepared.

The invention provides a cow dung organic controlled-release fertilizer and a preparation method thereof. The preparation method comprises the following steps: preparing porous cow dung biochar; preparing a cow dung organic fertilizer; uniformly mixing and stirring the porous cow dung biochar, the natural fibers in the treated cow dung and the cow dung organic fertilizer, and extruding and granulating in a granulator at normal temperature; drying to obtain the composite porous cow dung biochar with the sea urchin structure; preparing a hydrogel membrane solution, soaking the composite porous cow dung biochar with the sea urchin structure in the hydrogel membrane solution, and drying to obtain the cow dung organic controlled-release fertilizer. The cow dung organic controlled-release fertilizer formed by wrapping the cellulose hydrogel film layer with the composite porous cow dung biochar with the sea urchin structure is adopted, the porous cow dung biochar retains organic matter and nutritional ingredients in cow dung, and meanwhile moisture and pathogenic microorganisms are reduced through the carbonization process; the organic fertilizer is suitable for release and utilization of long-acting nutrient substances, the cow dung organic fertilizer is slowly released and utilized firstly, and the cow dung biochar is released and utilized for a long time.

The invention provides a high-porosity and high-strength silicon-based ceramic, a preparation method and application thereof, and a removal method of a ceramic core for a titanium alloy casting, the silicon-based ceramic comprises the following raw materials: solid powder and a binder, the solid powder comprises 60-100 wt% of silicon dioxide, 0-20 wt% of kaolin, and 0-20 wt% of calcium hydroxide; wherein the content of kaolin is greater than 0, and the content of calcium hydroxide is greater than 0; the mass ratio of the solid powder to the binder is 1: (0.01-0.05); the silicon dioxide is taken as a raw material, and the kaolin and calcium hydroxide powder are taken as mineralizers, so that the sintering of the material and the generation of christobalite can be effectively promoted, the open porosity of the silicon-based ceramic is improved, the collapsibility is improved, and meanwhile, a new phase is formed and is mutually combined to form a framework so as to enhance the mechanical property of the silicon-based ceramic.

The invention discloses a letemovir composition and a preparation method thereof. The specific dosage form of the letemovir composition is granules. Through dosage form, prescription and process optimization, the preparation is better in taste, easier to take, faster in dissolution and more stable in quality, the effectiveness and safety of clinical medication are guaranteed, and the applicable crowd of the medicine is expanded. Meanwhile, the preparation process designed by the invention is convenient to operate and easy to industrially amplify.

The invention relates to a method for leaching gold by catalyzing thiosulfate through a solid catalyst, and belongs to the technical field of production of precious metal gold through hydrometallurgy. The method comprises the following steps: grinding gold ore, and mixing to obtain gold ore pulp with the concentration of 10-40wt%; the method comprises the following steps: adding molybdenum disulfide solid powder or molybdenum disulfide nano-suspension into gold ore pulp, then adding thiosulfate, adjusting the pH value to 9-12, leaching gold under an illumination condition, filtering to obtain a gold leaching solution, and cleaning molybdenum disulfide obtained by filtering for reutilization; or the container wall is coated with molybdenum disulfide printing ink, gold ore pulp is added, then thiosulfate is added, the pH is adjusted to be 9-12, gold leaching and filtering are conducted under the illumination condition, gold leaching liquid is obtained, and the molybdenum disulfide printing ink coated on the container wall is reused after being cleaned. According to the method, molybdenum disulfide is used as a solid catalyst, and thiosulfate gold leaching can be efficiently catalyzed under conventional conditions. The cleaning device has the characteristics of high cleaning efficiency and high universality.

The invention discloses a Baoyuan decoction for relieving fatigue and regulating immunity and a preparation method thereof, and relates to the technical field of traditional Chinese medicine. The preparation method comprises: crushing ginseng, astragalus, licorice and cinnamon to obtain raw material A; mixing raw material A with extraction solvent 1, adding mixed enzyme, extracting, filtering to obtain extract 1 and filter residue 1; mixing filter residue 1 with water to obtain filter residue liquid, stirring and passing ozone treatment, filtering, washing, drying, and obtaining raw material B; mixing raw material B with extraction solvent 2, extracting, and combining extracts to obtain extract 2; mixing extract 1 and extract 2 uniformly, centrifuging, taking supernatant, adding water, and obtaining the Baoyuan decoction for relieving fatigue and regulating immunity. The present invention optimizes the extraction process, improves the efficacy, obtains better anti-fatigue effect and immunity improvement effect, and reduces the dosage of medication and improves patient compliance.

The invention discloses a preparation method of a mesoporous material, foamed aggregate, a mesoporous material-doped lithium slag micro-powder foamed material and a preparation method of the mesoporous material-doped lithium slag micro-powder foamed material, and belongs to the technical field of environmental substitute materials. Specific lithium slag is ground to a certain specific surface area and then mixed with silica powder and a mesoporous material, and then a binding agent, a fiber material, an exciting agent and a foaming agent are added according to a certain sequence; and the foaming material with uniform pores, firmness and light weight is obtained by fully stirring and adopting a physical and chemical combined foaming mode. The foaming material is environment-friendly and low in cost, and various properties of the foaming material are better than those of materials in the prior art.

The utility model relates to the technical field of mulberry leaf polysaccharide extraction, and discloses a mulberry leaf polysaccharide extraction device which comprises a device main body, a crushing and stirring mechanism is arranged at the top of the device main body, the crushing and stirring mechanism comprises a crushing box, a feeding hopper, a motor, a rotating shaft and a crushing cutter, and the crushing box is fixedly installed at the top of the device main body. According to the utility model, the crushing knife can crush mulberry leaves, so that the subsequent extraction effect is improved, an additional crusher is not needed to crush the mulberry leaves and then add the crushed mulberry leaves into the extraction tank, the stirring rod can uniformly mix mulberry leaf materials with an extraction solvent, and the scraping plate can scrape off the mulberry leaf materials attached to the inner wall of the extraction tank; the situation that part of mulberry leaf materials cannot be evenly mixed with the extraction solvent is avoided, the heating equipment can accurately control the extraction temperature, and polysaccharide dissolution can be accelerated.

The invention discloses an iron protein succinate solid dispersion and a preparation method thereof, and belongs to the technical field of medicines. The solid dispersion is prepared from iron protein succinate and a solid dispersion matrix, wherein the solid dispersion matrix is polyethylene glycol or hydroxyethyl starch. The solid dispersion provided by the invention only adopts the iron protein succinate and the solid dispersion matrix as raw materials, and by adjusting the ratio of the iron protein succinate to the solid dispersion matrix, the dispersion has the following advantages: no preservative is added; few types of safe auxiliary materials are used in the prescription; the preparation is formed into a soluble solid form and is convenient to take and carry; the requirements on safety and compliance of pregnant women and infants are met; the adverse reaction of constipation caused by an iron supplement is reduced; the preparation method is easy to implement. The solid dispersion provided by the invention also has the characteristics of no obvious rust flavor and no irritation to the mouth and the tongue; the stability of the dispersoid and the stability of particles prepared from the dispersoid are equivalent to those of commercially available iron protein succinate oral solutions.

The invention discloses a preparation method of ampelopsis grossedentata flavored beer, and relates to the technical field of flavored beer preparation, and the preparation method comprises the following steps: selecting high-quality ampelopsis grossedentata leaves, cleaning, and dehydrating; carrying out superfine grinding on the dried ampelopsis grossedentata leaves to prepare fine ampelopsis grossedentata powder; according to a traditional beer brewing process, maltose saccharification and fermentation steps are completed, and a basic beer stock solution is obtained; after the beer stock solution is cooled to a proper temperature, adding ampelopsis grossedentata powder; according to the preparation method of the ampelopsis grossedentata flavor beer, the ampelopsis grossedentata is subjected to superfine grinding, so that the contact surface area of the ampelopsis grossedentata and the beer stock solution is greatly increased, the dissolution of flavor substances is promoted, the uniform distribution of the ampelopsis grossedentata flavor in the beer is ensured, and the problem that the bitter taste is too thick possibly caused by a traditional soaking method is avoided. In addition, the reasonable addition proportion ensures that the flavor of the ampelopsis grossedentata does not cover the taste of the beer, the ampelopsis grossedentata and the beer complement each other, and brand-new drinking experience is provided for consumers.

The invention discloses a porous polyimide film and a preparation method thereof, and belongs to the technical field of polyimide films, the preparation method comprises: preparing a first polyamic acid solution, preparing a second polyamic acid solution, mixing, and coating. The step of preparing the second polyamide acid solution comprises the following steps: in a nitrogen atmosphere, adding silicon-containing diamine into a mixed solvent, stirring at room temperature until the silicon-containing diamine is completely dissolved, adding dianhydride, and stirring to obtain the second polyamide acid solution; mixing: stirring the first polyamic acid solution at room temperature in a nitrogen atmosphere, adding the second polyamic acid solution into the first polyamic acid solution at the same time, stirring after adding, adding the white carbon black dispersion liquid, and stirring to obtain a mixed solution; the prepared porous polyimide film is low in dielectric constant and also has excellent dimensional stability, high temperature resistance, hydrophobicity and mechanical performance.

The invention provides a tillite health-care wine production process, and relates to the technical field of health-care wine brewage, the tillite health-care wine production process comprises the following steps: S1, raw material preparation, S2, raw material treatment: crushing the dried raw materials through crushing operation; s3, stirring: putting the powdery raw materials formed in the step S2 into a reaction kettle; s4, purifying and filtering; s5, cooking: cooking the tillite extracting solution and common food materials for wine brewing; s6, performing fermentation: performing fermentation on the food material extracting solution obtained in the step S5, honey and yeast together; s7, sterilization and disinfection; s8, blending: blending the sterilized raw stock of the brewed wine in the S7 with distilled wine; s9; performing packaging; the traditional Chinese medicine composition is helpful for regulating the metabolic process in the body and regulating blood fat, insulin sensitivity and vasodilation, so that blood sugar, blood pressure and blood fat are reduced; and by taking a proper amount of the health-care tea, the immunity can be enhanced, the beauty is maintained, the senescence is delayed and the sexual function is improved.

The application discloses a separation system for recycling leaf filter waste residue in an alumina production process, comprising a pressure separation device, a feed pump connected between a leaf filter waste residue slurry source and a feed inlet of the pressure separation device, an external tank dilution circuit, an overflow outlet of the pressure separation device connected to an inlet front end of the feed pump through a shunt pipeline, a underflow pump connected to an underflow outlet of the pressure separation device, a vacuum belt filter connected to an outlet of the underflow pump, a pulping tank arranged below a filter cake discharge outlet of the vacuum belt filter, and a conveying pump connected between an outlet of the pulping tank and a pre-desilication process of an alumina production system. Through the synergistic effect of high solid content mud layer sedimentation technology and external tank dilution technology, the industry problem that leaf filter waste residue is difficult to settle, concentrate and filter and separate due to easy hydrolysis under the condition of low caustic alkali concentration and low molecular ratio and a large amount of fine planktonic matter is effectively solved.

According to the aspirin-containing dry suspension and the preparation method thereof, ethyl cellulose and calcium carbonate serve as coating powder and are mixed with ethyl alcohol to prepare a coating solution, aspirin particles are coated, due to the wrapping effect of the ethyl cellulose and the calcium carbonate, aspirin is effectively isolated from dihydroxyaluminum aminoacetate and heavy magnesium carbonate, and the aspirin-containing dry suspension is prepared. Compared with the existing dosage forms in the market, good stability and taste masking effect are accidentally obtained, the preparation method is simple, the operability is high, the content of effective substances in the dry suspension can be increased, and the dry suspension has good dissolution effect, stability, taste masking effect and compliance, is more suitable for the old and children and has great clinical significance compared with the existing dosage forms in the market.