81 results about "Sulfate zinc" patented technology

The application discloses a kind of genetic engineering escherichia coli plasmid expression culture medium and fermentation process, including basic medium and feed medium;The basic medium includes glycerol, yeast hydrolysate, yeast peptone, L-glutamic acid, L-valine, L-isoleucine, arginine, tyrosine, lysine, proline, glycine, ammonium sulfate, potassium dihydrogen phosphate, dipotassium hydrogen phosphate, citric acid, magnesium sulfate, ferrous sulfate, zinc sulfate, calcium chloride, manganese chloride, cobalt chloride, copper chloride, sodium ethylenediaminetetraacetate;Feed medium includes glycerol, citric acid, magnesium sulfate, ferrous sulfate, zinc sulfate, calcium chloride, manganese chloride, cobalt chloride, copper chloride, sodium ethylenediaminetetraacetate.The application inhibits the accumulation of harmful metabolites, and creates the optimal intracellular environment for stable replication of plasmid.In industrial fermentation scale, the amount of plasmid harvested per liter of fermentation broth is more than 1 gram, and the supercoiling ratio of plasmid DNA is stably maintained at more than 90%, with minimal batch-to-batch variation.

This utility model discloses a comprehensive treatment system for zinc-containing waste generated in viscose fiber production, belonging to the field of waste treatment in viscose fiber production. The system includes a reaction tank, filter press, pretreatment device, filter, ion exchange resin column, and acid bath preparation tank, ensuring a comprehensive treatment pathway for zinc-containing waste. This facilitates the mixing of highly acidic, high-salt zinc-containing wastewater with zinc-containing sludge. The strong acidity of the wastewater allows for the acid leaching of zinc sulfide and zinc hydroxide in the sludge, simultaneously obtaining a zinc sulfate solution and recovering sulfate to prepare sodium sulfate and sulfuric acid. This reduces the salinity of the wastewater, thereby decreasing the amount of reagents used in treating zinc-containing wastewater, mitigating scaling risks, and reducing the load on subsequent biochemical systems.

This invention provides a method for the synergistic recovery of sulfuric acid and copper and zinc from waste acid from copper strip washing, comprising the following steps: S1, waste acid pretreatment; S2, novel bipolar membrane electrodialysis separation; S3, copper-targeted precipitation separation: adding a copper-targeted precipitant to the heavy metal concentrate to form a stable precipitate, followed by filtration and washing to obtain a copper-enriched precipitate; S4, zinc sulfate preparation: adjusting the pH of the filtrate after copper precipitation separation and removing reducing impurities, then evaporating and concentrating to a solution density of 1.4-1.5 g / cm³, cooling and crystallizing, and centrifuging to obtain zinc sulfate crystals, with the mother liquor returned to the evaporation and concentration unit for recycling. This method can achieve efficient recovery and recycling of sulfuric acid, while simultaneously achieving precise separation of copper and zinc ions and the preparation of high-value products, significantly improving the resource utilization efficiency of waste acid and reducing treatment costs.

This invention relates to the field of agricultural fertilizer technology, specifically to a foliar fertilizer for navel oranges containing γ-aminobutyric acid (GABA) and its application. The foliar fertilizer comprises the following components in parts by weight: 10-25 parts GABA; 5-12.5 parts citric acid; 5-12.5 parts potassium citrate; 5-10 parts boric acid; 5-10 parts zinc sulfate; 0.5-2.5 parts sodium selenite; and water to 100 parts. The foliar fertilizer for navel oranges provided by this invention has advantages such as synergistic effects, environmental friendliness, precise and significant effects, and good stability. It can efficiently supplement trace elements and promote the overall quality improvement of fruits, meeting the requirements of green agriculture and possessing significant industrial application value and practical significance.

This invention relates to a method for preparing a core-shell structured Al-Zn@Al2O3 composite phase change thermal storage material, belonging to the technical field of medium- and high-temperature phase change thermal storage materials. This invention involves adding an aluminum powder suspension to an HCl solution and stirring at 45–65°C for 5–10 minutes. Gelatin is then added, and the mixture is reacted at 45–65°C with stirring for 10–20 minutes to obtain solution A. NH4F solution is slowly added to solution A at 40–60°C with stirring, and the reaction continues for 30–60 minutes. A mixture of zinc sulfate solution and ethylenediaminetetraacetic acid is then added, and the mixture is reacted for 3–5 hours. After standing, the solid and liquid are separated. The solid is washed 3–5 times alternately with anhydrous ethanol-water-anhydrous ethanol and dried to obtain solid B. Under a protective atmosphere, solid B is uniformly heated to 600–660°C and calcined at high temperature for 2–4 hours to obtain aluminum-zinc alloy powder. Under an air atmosphere, the aluminum-zinc alloy powder is uniformly heated to ~800°C and calcined at high temperature for 1–4 hours to obtain a core-shell structured Al-Zn@Al2O3 high-temperature phase change heat storage material.

This invention discloses a full-ocean-depth metal-seawater fuel cell. The metal anode material mainly comprises one or more of the following components: Mg, Sn, B, La, Ce, Pr, Nd, Dy, Sm, Ti, and Ca, with the balance being Al. The electrolyte of this invention is a mixed aqueous solution of natural seawater, sodium stannate, zinc oxide, zinc sulfate, sodium carbonate, and cerium chloride, with the pH adjusted to between 12 and 14. The metal anode of this invention, in the above electrolyte, not only significantly reduces the hydrogen evolution corrosion rate but also directionally induces product formation, thereby improving electrochemical performance. The preparation method of this metal anode and electrolyte is simple, applicable to different temperature and pressure variations and operating current densities, and can be applied to metal-seawater fuel cells under various operating conditions at full ocean depth.

This invention relates to a method for the synergistic separation of iron and copper-zinc in zinc sulfate solution using ultrasonic-enhanced goethite, belonging to the field of hydrometallurgical technology. This invention separates iron and copper-zinc from zinc sulfate solution containing Fe. 2+ Cu 2+ and Zn 2+ An acidic zinc sulfate solution was placed in an ultrasonic field, and an oxidant was slowly added to pre-oxidize the solution until Fe was added. 3+ A pre-oxidized acidic zinc sulfate solution with a concentration of 0.01~1.00 g / L was obtained. Goethite seed crystals and a copper-zinc liquid phase stabilizer were added to the pre-oxidized acidic zinc sulfate solution and mixed evenly. A neutralizing agent was added under ultrasonic conditions to adjust and control the pH of the solution system to 2.5~4.0, and the reaction proceeded. This caused the iron in the solution system to form a goethite precursor and directionally crystallize into α-FeOOH. At a pH of 2.5~4.0, the ultrasonic density was adjusted to promote the directional crystallization of Fe until the Fe concentration in the solution did not exceed 0.1 g / L. This allowed the directionally crystallized α-FeOOH particles in the solution system to grow in an orderly manner and inhibited disordered flocculation and agglomeration. Solid-liquid separation yielded a goethite precipitate with low copper and zinc entrainment and a copper-zinc enriched purification solution. This invention can achieve efficient removal of iron and low loss retention of copper and zinc.

The application discloses a metal organic framework salt-alkali soil modifier and a preparation method thereof. The modifier is formed by bridging coordination of a metal cluster, inorganic ligand phosphoric acid, organic ligand and structure directing agent urea under hydrothermal conditions; the metal cluster is ferric chloride hexahydrate and / or zinc sulfate heptahydrate; the organic ligand is one or a combination of two of oxalic acid dihydrate, citric acid monohydrate and tartaric acid; and the molar ratio of the metal cluster, phosphoric acid, organic ligand, urea and deionized water in the hydrothermal reaction is 1-2:6:1-2:2.5-3:100. The modifier has the functions of improving salt-alkali soil and slow-release fertilizer, can provide sufficient nutrients for crops and significantly reduce the salt effect of the nutrients.

This invention discloses a method for separating zinc and magnesium from the frozen crystallization product of waste electrolyte in hydrometallurgical processes, belonging to the field of hydrometallurgical technology. The frozen crystallization product of the waste electrolyte in hydrometallurgical processes is heated to 950-1050℃ and held for 2-4 hours, causing zinc sulfate heptahydrate to decompose into zinc oxide and magnesium sulfate heptahydrate to dehydrate into anhydrous magnesium sulfate. Both are transferred as pyrolysis solid products to the next process. Then, the pyrolysis solid products are added to an aqueous leaching solution at a liquid-to-solid ratio of 2-10:1, maintaining the temperature at 20-60℃, and leaching with stirring for 10-60 minutes. Solid-liquid separation yields magnesium-rich solution and zinc-rich slag, achieving zinc-magnesium separation. This method, through thermodynamic transformation, converts ion-selective separation into a solid-liquid leaching separation process based on the differences in the physical properties of the phases, resulting in more efficient, thorough, and cleaner separation. The process flow is shorter, and energy consumption is lower, improving resource utilization while reducing processing costs.

The utility model discloses a kind of sulfuric acid absorption towers for zinc sulfate heptahydrate, including tower body mechanism, still including the packing absorption mechanism for containing packing and the poking extrusion mechanism for avoiding crystallization blockage by poking to packing and the bounce mechanism for improving poking effect by cooperating with the poking extrusion mechanism, the packing absorption mechanism is installed in the tower body mechanism inside, the poking extrusion mechanism is vertically installed on the packing absorption mechanism, the bounce mechanism is installed on the poking extrusion mechanism top. Impact force of water flow cooperates with poking extrusion mechanism, so that conical cover can drive main shaft and extruding block rotation, so that top separates the packing inside frame and pokes, so that packing is mutually rubbed, so that crystal on surface is rubbed off, improve the flow effect of liquid, so as to improve the combination between sulfuric acid gas and liquid, improve absorption effect.

The application relates to the technical field of fertilizers, and discloses a chitosan-grafted polyacrylic acid slow-release fertilizer and a preparation method thereof. The chitosan-grafted polyacrylic acid slow-release fertilizer is obtained by spray drying of a nutrient solution, a carrier dispersion liquid and a calcium chloride aqueous solution; the nutrient solution is obtained by mixing urea, potassium dihydrogen phosphate, zinc sulfate heptahydrate, iron sodium ethylenediaminetetraacetate, amino acid and deionized water; the carrier dispersion liquid is obtained by mixing a porous carrier, deionized water and polyoxyethylene sorbitan monooleate; the porous carrier is prepared from sulfonated chitosan powder, deionized water, an acrylic acid neutralizing solution, ammonium persulfate and N,N'-methylenebisacrylamide; and the sulfonated chitosan powder is prepared from formamide, chlorosulfonic acid and chitosan powder. The application can reduce the release rate of nutrients and improve the utilization rate of nutrients.

The application discloses a kind of phosphorus-free scale inhibiting dispersants and preparation method thereof.In one aspect, the application provides a kind of phosphorus-free scale inhibiting dispersants, and the mass fraction ratio of each component of the phosphorus-free scale inhibiting dispersants includes: modified polyaspartic acid-acrylic acid-EDTA copolymer 24~28 parts, itaconic acid-styrene sulfonic acid copolymer 60~64 parts, zinc sulfate 2~3 parts.In another aspect, the application provides the preparation method of the above-mentioned phosphorus-free scale inhibiting dispersant, including the following steps: S1, preparation modified polyaspartic acid-acrylic acid-EDTA copolymer;S2, preparation itaconic acid-styrene sulfonic acid copolymer;S3, according to formula amount weighing each component, after being mixed sufficiently, phosphorus-free scale inhibiting dispersant is prepared.The high temperature stability of the application is better, and the scale inhibiting effect of calcium, magnesium, barium and other ions is all more excellent.

The application discloses a eutectic electrolyte based on ionic liquid and application thereof in a water-based zinc-iodine battery, and belongs to the technical field of eutectic electrolytes. First, a sulfonic acid pyrrolidone copolymer is prepared by radical polymerization with 2-acrylamido-2-methylpropanesulfonic acid and N-vinylpyrrolidone as monomers, then a stable eutectic liquid phase system is constructed by regulating the amount of deionized water with zinc sulfate heptahydrate as a zinc salt and 1-ethyl-3-methylimidazolium chloride as a core functional component, and then the sulfonic acid pyrrolidone copolymer is introduced to prepare the eutectic electrolyte based on ionic liquid. When the electrolyte is used for assembling the water-based zinc-iodine battery, the iodine-based four-electron transfer reaction can be stably realized, the migration of iodide and the disorderly growth of zinc dendrites are effectively inhibited, and the water-based zinc-iodine battery has long-term cycle stability.

The present application belongs to the technical field of aquatic feed, and discloses a special feed for Eriocheir sinensis breeding and a preparation method thereof. The raw materials of the feed include fish meal, soybean meal, corn meal, wheat meal, shrimp meal, spirulina powder, black soldier fly larvae powder, yeast powder, bile acid, chitosan, calcium dihydrogen phosphate, choline chloride, vitamin C ester, ferrous sulfate and zinc sulfate. The preparation method includes key steps such as raw material ultrafine grinding, grading mixing, liquid conditioning, ring die granulation, post-curing drying and surface spraying of flavor attractant. The present application realizes the synergistic effect among components through the precise compounding of various conventional and functional raw materials and the targeted processing technology. When the feed is applied to the breeding of Eriocheir sinensis, the growth rate, feed conversion rate, immunity and food quality of the finished crab can be significantly improved, and the water pollution in the breeding process can be effectively reduced, so that the breeding goal of health, high efficiency and ecology is achieved.

A method for recovering tin and indium from lead ore refining slag, comprising: adding limestone and crushed coal to lead ore refining slag, uniformly mixing same, then feeding same into a side-blown furnace for smelting under oxygen-enriched air conditions, cooling collected slag, and then adding a sulfuric acid solution and sodium dodecyl sulfate for grinding to obtain slag powder; adding an acid solution to the slag powder for acid leaching, filtering and separating same to obtain a filtrate A and a residue B, drying and pulverizing the residue B, and then smelting and recovering same to obtain crude tin; adding sodium sulfite to the filtrate A for stirring treatment, then adding calcium carbonate to adjust the pH to 4.5-5.5, performing stirring treatment, and then filtering to obtain a filtrate C and a residue D; adding an acid solution to the residue D for secondary acid leaching to obtain a leaching solution, adding zinc powder into the leaching solution for displacement and recovery to obtain crude indium, and at the same time, collecting the post-displacement solution and mixing same with the filtrate C to prepare zinc sulfate. The method can improve the recovery efficiency of tin and indium elements in refining slag, thereby facilitating recovery and utilization of lead ore refining slag.

This invention provides a low-temperature aqueous zinc-ion battery electrolyte, its preparation method, and its application. The low-temperature aqueous zinc-ion battery electrolyte comprises a zinc salt, water, and a diluent; the diluent is one of tetrahydrofuran, methyl tert-butyl ether, cyclopentyl methyl ether, dioxane, and ethylene glycol diether; the zinc salt is one of zinc sulfate heptahydrate, zinc gluconate, zinc acetate, zinc trifluoromethanesulfonate, and zinc chloride; and the water is deionized water. This aqueous zinc-ion battery electrolyte exhibits excellent interfacial stability, high and low temperature performance, and cycle performance. Batteries prepared using this aqueous zinc-ion battery electrolyte exhibit high coulombic efficiency, excellent cycle stability, excellent high and low temperature cycle performance, and excellent cycle discharge performance.

This invention relates to a method for simultaneously migrating and co-precipitating iron, fluoride, and chloride in zinc sulfate solution using the goethite process, belonging to the field of hydrometallurgical technology. This invention involves... 2+ An acidic zinc sulfate solution containing fluoride and chloride was placed in an ultrasonic field, and hydrogen peroxide was slowly added as an oxidant at a temperature of 298-368 K to pre-oxidize the solution until Fe was added. 3+ A pre-oxidized acidic zinc sulfate solution with a concentration of 0.01~1.00 g / L was obtained. Under ultrasound, a neutralizing agent was added to the pre-oxidized acidic zinc sulfate solution to adjust the pH of the solution system to 2.5~4.0. Simultaneously, a synergistic fixation promoter and a structure regulator were added, and the reaction was carried out for 20~100 min, causing the iron in the solution system to form a goethite precursor and directionally crystallize into α-FeOOH. The ultrasonic power density was adjusted to 350~600 W / cm³. 2 This method promotes the directional co-precipitation and crystallization of Fe, simultaneously fixing fluorides and chlorides. Solid-liquid separation yields a fluorine- and chlorine-containing goethite precipitate and a zinc-enriched purified solution. This invention enables the simultaneous and deep removal of iron, fluorine, and chloride in the same unit operation.

This invention discloses a trace element composition and its application for improving the fermentation efficiency of *Clostridium autoethanogenum* under conditions containing CO2 and H2 syngas, belonging to the field of microbial fermentation technology. The trace element composition comprises the following components: 1.5% nitroglycerin, 3% magnesium sulfate, 0.5% manganese sulfate, 0.1% ferrous sulfate, 0.18% cobalt sulfate, 0.1% calcium chloride, 0.18% zinc sulfate, 0.01% copper sulfate, 0.02% potassium aluminum sulfate, 0.01% boric acid, 0.01% sodium molybdate, 0.03% nickel chloride, and 0.004% sodium tungstate. Using the trace element composition of this invention, after 4 days of fermentation under conditions containing CO2 and H2 syngas (CO2:H2=1:2, CO-free), the cell concentration is nearly twice that of the control group without the composition, and the syngas utilization rate is significantly improved. This invention provides an effective technical solution to the problem of low fermentation efficiency of self-producing ethanol Clostridium in a pure CO2 and H2 system, and has good prospects for industrial application.

The application belongs to the field of solid waste resource utilization and electrochemical energy storage technology, and more particularly relates to a solid electrolyte based on waste cement paste as well as a preparation method and application thereof. Through directional conversion reaction between calcium-silicon-aluminum hydration phase in waste cement paste and zinc sulfate solution, a gypsum-alkali zinc sulfate composite phase (ZnCP composite material) with a layered crystal structure is in-situ constructed, and a collaborative breakthrough of high-value recycling of waste resources and development of high-performance solid electrolyte is realized. The structure-performance synergistic mechanism of the ZnCP composite material makes the solid electrolyte provided by the application maintain excellent electrochemical stability in a wide temperature range of-20-60 DEG C, the Zn / / polyaniline full battery assembled has a cycle life of more than 420 times, and the zinc / / zinc symmetric battery is stably operated for more than 1500 hours without dendrite and hydrogen evolution.

This invention discloses an additive-free, high-temperature fission activated silicon-calcium-potassium-magnesium-boron-zinc complete nutrient fertilizer and its preparation method, belonging to the field of mineral fertilizer preparation technology. This invention uses potassium feldspar, dolomite, limestone, and natural gypsum as basic raw materials. After crushing and mixing, the raw materials undergo additive-free high-temperature calcination fission at 1200-1300℃. After calcination, the materials are rapidly cooled to below 60℃, and then borax and zinc sulfate monohydrate are added and mixed evenly to obtain the finished product. This invention eliminates the need for chemical additives such as fluxes and combustion aids, effectively reducing production costs. High-temperature calcination allows for full fission of the potassium feldspar lattice, resulting in an effective potassium dissolution rate of ≥90%. The addition of gypsum supplements sulfur, and combined with trace elements such as boron and zinc, forms a complete nutrient formula containing silicon, calcium, potassium, magnesium, sulfur, boron, and zinc. This formula is environmentally friendly to paddy fields and is particularly suitable for rice cultivation. Nutrients are not easily lost and are released stably under flooded conditions. It also meets the nutritional needs of field crops such as wheat and corn throughout their entire growth period, achieving a yield increase of 15-25%. It improves soil compaction, enhances crop resistance to lodging and disease, and features a simple process, low cost, and significant effects, resulting in extremely high economic and ecological benefits.

This invention relates to the field of microbial technology. It provides a culture medium for regulating a single nitrogen source in white-rot fungi, its preparation method, and its applications. The culture medium uses water as a solution and further includes potassium dihydrogen phosphate, disodium hydrogen phosphate, a carbon source, magnesium sulfate heptahydrate, manganese sulfate tetrahydrate, zinc sulfate heptahydrate, copper sulfate pentahydrate, calcium chloride heptahydrate, ferrous sulfate heptahydrate, and a nitrogen source. The core advantage of the culture medium and preparation method designed in this invention lies in the precise control of the type of nitrogen source, effectively eliminating interference from multiple nitrogen sources. This provides a dedicated culture medium for studying the physiological metabolism, molecular mechanisms, and biosynthesis of white-rot fungi under specific nitrogen source environments, and is widely applicable to transcriptional, protein and metabolic regulation, as well as biodegradation and synthetic biology in white-rot fungi.

This invention discloses a bio-fertilizer and soil improvement method for reducing continuous cropping obstacles in cucumbers. By weight, the bio-fertilizer comprises the following raw materials: 30-40 parts of well-rotted livestock and poultry manure, 20-30 parts of straw or rice husks, 1-2 parts of borax, 2-3 parts of urea, 2-4 parts of ammonium sulfate, 2-3 parts of zinc sulfate, 2-3 parts of magnesium sulfate, 1-2 parts of humic acid, and 1-2 parts of a microbial compound agent. The microbial compound agent comprises 4-6 parts of Bacillus megaterium, 2-3 parts of Bacillus polymyxa, 2-4 parts of Trichoderma echinococcus, 2-3 parts of Trichoderma viride, 3-5 parts of Pseudomonas fluorescens, 4-5 parts of Azotobacter chrysogenum, and 2-4 parts of Candida albicans. Using this bio-fertilizer and soil improvement method for reducing continuous cropping obstacles in cucumbers can significantly reduce the impact of continuous cropping obstacles, not only significantly reducing the incidence of cucumber wilt and root-knot nematodes and significantly promoting cucumber seedling growth, but also significantly increasing cucumber yield.

This invention relates to the field of corrosion and scale inhibitors, specifically to a method for preparing a highly efficient and environmentally friendly corrosion and scale inhibitor. The invention utilizes polyepoxysuccinic acid, sodium D-gluconate, benzotriazole, polycaprolactam-urea copolymer, zinc sulfate heptahydrate, and thiourea to formulate a highly efficient and environmentally friendly corrosion and scale inhibitor. Polyepoxysuccinic acid is an environmentally friendly green corrosion and scale inhibitor because the oxygen atoms in its polar groups contain unpaired electrons, which can act as adsorption centers in solution, thus inhibiting corrosion. Furthermore, polyepoxysuccinic acid is also a chelating agent, capable of chelating calcium ions in water, thereby inhibiting scale formation. When thiourea is combined with other agents, it can exert a synergistic effect, making the adsorption layer on the metal surface more compact and increasing the corrosion inhibition performance of the formulation. The highly efficient and environmentally friendly corrosion and scale inhibitor prepared by this invention is phosphorus-free, non-toxic, highly efficient, and environmentally friendly, possessing significant economic and utilization value.

The application discloses application of Prunella vulgaris extract in prevention and treatment of fish parasitic disease infection. Inclined tube worm in-vitro soaking experiments show that the insecticidal effect of Prunella vulgaris extract and zinc sulfate is equivalent after 48 hours, and the mortality rate is above 95.44%; based on the growth condition of rainbow trout feeding on Prunella vulgaris extract, the specific growth rate of fish is significantly improved, the growth performance is improved, and the growth of fish is promoted; the plasma biochemical indexes after parasitic infection show that the addition of 0.25% to 1% Prunella vulgaris extract in feed can significantly reduce stress caused by pathogenic stress and protect the health of fish liver.

This invention relates to the field of resource utilization and pollution control technology for steel solid waste, specifically disclosing a method for deep thallium removal at multiple nodes throughout the wet process of a steel solid waste treatment plant. This method incorporates a three-stage deep thallium removal process into the entire recovery process of potassium, sodium, and zinc: in the potassium and sodium recovery line, the first stage of deep thallium removal is performed on the purified potassium and sodium rinsing solution using a Na2S+Na2CO3 co-precipitation method; in the zinc recovery line, the second stage of deep thallium removal is performed on the neutral leachate after iron removal using an ultrasonic-enhanced zinc powder replacement method; and in the deeply purified zinc sulfate solution section, a third stage of guaranteed deep thallium removal is performed using zinc-based composite powder. This invention achieves the graded and efficient removal of trace heavy metal thallium by applying the most suitable thallium removal technology at different process nodes, ensuring the high purity of potassium and sodium salts and nano-zinc oxide products, and preventing the cyclic enrichment of thallium within the system.

This invention relates to the field of infant formula technology, and discloses an infant formula milk powder and its preparation method. The infant formula milk powder is obtained by mixing demineralized whey powder, whey protein powder, fructooligosaccharides, choline chloride, taurine, fat molecule inclusion complex, complex mineral casein phosphopeptide chelate, water-soluble vitamin premix, and fat-soluble vitamin premix. The complex mineral casein phosphopeptide chelate is prepared from casein phosphopeptide, deionized water, sodium hydroxide aqueous solution, vitamin C, calcium citrate, ferrous sulfate, and zinc sulfate. The fat molecule inclusion complex is prepared from β-cyclodextrin, deionized water, walnut oil, docosahexaenoic acid, and anhydrous ethanol. This invention can delay the oxidation of unsaturated fatty acids in infant formula.

This invention discloses a method and application for in-situ construction of a protective layer on the surface of a zinc anode in an aqueous zinc-ion battery, belonging to the technical field of aqueous zinc-ion batteries. The method involves first pre-treating the zinc metal surface with progressive grinding and ultrasonic cleaning, then preparing a 2 mol / L zinc sulfate liquid electrolyte, to which (3-amino-3-carboxypropyl)dimethylsulfonium chloride (concentrations of 0.01, 0.02, and 0.05 mol / L) is added. After thorough stirring, the electrolyte is assembled with the pre-treated zinc electrode and a glass fiber filter membrane to form a Zn||Zn coin cell. Its core mechanism lies in the presence of -COOH, -NH2, and S in the additive molecules. + Synergistic effect of functional groups: -COOH and Zn² + Strong coordination regulates solvation structure and deposition behavior, forming a dense organic adsorption layer; -NH2 and Zn² + Weak coordination, synergistic homogenization of Zn² + Migration pathway; S + Introducing a positive charge onto the zinc surface creates a positively charged electrostatic shielding layer, suppressing parasitic reactions such as corrosion and hydrogen evolution. This method can construct a stable protective layer in situ, significantly improving battery cycle stability. Furthermore, the preparation process is simple and inexpensive, showing promising prospects for industrial application.

The application discloses a kind of no pricklyash male and female flower flowering period synchronous regulation and control method, belong to plant cultivation technical field.The method includes: flower bud differentiation period is applied to control nitrogen and increase phosphorus and potassium special base fertilizer, and female plant is sprayed with the first flower regulating nutrient agent consisting of potassium dihydrogen phosphate, borax, zinc sulfate and brassinolide;Pruning and clearing garden are carried out during dormancy period;Male tree disc is covered with cooling during germination and bud stage, and the whole garden is applied to phosphorus and potassium type quick-acting fertilizer, and is sprayed with the second flower regulating nutrient agent consisting of potassium dihydrogen phosphate, calcium magnesium phosphate fertilizer, gibberellin and amino acid water-soluble fertilizer;According to the development of male flower and female flower, once directional fine adjustment is carried out using regulating agent before flowering period, and borax and cane sugar mixed solution are sprayed during initial flowering period.The present application is precisely controlled in stages and differentially intervened in male and female, so that the overlapping time of male and female flower full flowering period reaches more than 7 days, the fruit setting rate is increased to 82.5%, the yield per plant is increased by more than 2 times, and the operation is simple, low in cost, suitable for large-scale popularization.

This invention discloses an induction culture medium and a culture method for isolating *Hypericum sinense* strains from *Cordyceps sinensis* branches. The induction culture medium includes sucrose 5-20 g / L, starch 5-20 g / L, potassium nitrate 1-5 g / L, ammonium nitrate 4-8 g / L, zinc sulfate 5-20 mg / L, glycine 1-5 mg / L, calcium chloride 1-5 g / L, magnesium sulfate 1-2 g / L, ascorbic acid 0.3-0.6 g / L, NAA 0.1-2 mg / L, β-cyclodextrin 5-20 g / L, and agar 20 g / L. The culture method includes: (1) generating aerial mycelia from *Cordyceps sinensis* branches; (2) culturing the aerial mycelia in the induction culture medium to obtain *Hypericum sinense* strains. The cultivation method provided by this invention can isolate the Chinese trichomoniasis strain from broken branches of Cordyceps sinensis, which can reduce or avoid resource waste, lower cultivation costs, is convenient and fast, has a high mycelial germination rate, and a fast strain growth rate, which is conducive to the large-scale promotion of artificial cultivation technology of Cordyceps sinensis.

This invention discloses a method for preparing and applying an additive-modified aqueous zinc-ion battery electrolyte. The preparation process includes the following steps: Step 1: Prepare zinc sulfate raw material and a corrosion-resistant stirred tank, then add the zinc sulfate raw material to the stirred tank to prepare a 2 mol / L solution. ‑1 A zinc sulfate (ZnSO4) aqueous solution was used as the base electrolyte, i.e., 2 M ZnSO4. Step two: A certain amount of phenylboronic acid was weighed and added according to 3 g / L... ‑1 A concentration of PBA was added to the above 2 M ZnSO4, and the mixture was stirred in a water bath at 80°C for 1 hour at room temperature until the phenylboronic acid was completely dissolved, yielding an aqueous zinc-ion battery electrolyte containing phenylboronic acid additive. This invention effectively suppresses the growth of zinc anode dendrites and hydrogen evolution side reactions through the addition of PBA, improving the cycle stability and coulombic efficiency of the battery. It provides a high-performance electrolyte system for the practical application of aqueous zinc-ion batteries, and also provides a full battery using this electrolyte to explore its application potential in practical energy storage scenarios.