69 results about "Cuprous chloride" patented technology

The application provides a kind of superfine copper powder and its preparation method and application, the preparation method of the above-mentioned superfine copper powder uses two-step liquid phase reduction method to prepare superfine copper powder, and improves process conditions, using dropwise feeding mode. Among them, the first step uses alkaline ascorbic acid solution to reduce copper chloride to cuprous chloride with narrow particle size distribution; the second step uses ferrous sulfate and sodium citrate as mixed reducing agent, and sodium citrate can also be used as a complexing agent, which helps to reduce the cuprous chloride to spherical, well-dispersed, uniform particle size distribution of superfine copper powder. At the same time, the raw materials used by the application are easy to obtain, the reaction process is mild, and organic solvents and toxic and hazardous reagents such as sodium borohydride and hydrazine hydrate are not needed, the preparation process has cost effectiveness, is friendly to the environment, and is suitable for industrial production.

The application discloses a synthesis method of 2,3,3',4'-biphenyl tetracarboxylic dianhydride, characterized in that 2,3-dimethylaniline is used as a starting raw material, 2,3-dimethylaniline diazonium salt is prepared through a diazotization reaction, then 2,3,3',4'-tetramethyl biphenyl is prepared through a coupling reaction of the 2,3-dimethylaniline diazonium salt and o-xylene under the catalysis of cuprous chloride, and finally 2,3,3',4'-biphenyl tetracarboxylic dianhydride is prepared through an oxidation reaction and dehydration to form anhydride. The coupling reaction in the synthesis method has good selectivity, 3,3,4',4'-tetramethyl biphenyl which is difficult to separate is not generated, high-purity a-BPDA can be finally obtained, and the coupling reaction in the synthesis method only needs to use low-cost cuprous chloride as a catalyst, so that the production cost is greatly reduced compared to a high-cost catalytic system in the prior art, and the synthesis method is more suitable for industrial mass production.

The application belongs to the technical field of fluorescent probe detection, and discloses a bimetallic nanocluster fluorescent probe compound and application thereof in preparation of a product for rapidly detecting acetylene. The fluorescent probe compound is a gold-copper bimetallic nanocluster solution modified by adamantane thiol, which is used as a fluorescent probe for acetylene detection. The solution has a clear and controllable preparation process. Through specific proportioning and reaction conditions of cuprous chloride, adamantane thiol, tetrachloroauric acid, sodium borohydride and other reagents, a probe solution with stable fluorescence characteristics can be prepared. The bimetallic nanocluster fluorescent probe compound is applied in preparation of a product for rapidly detecting acetylene. Through specific combination of fluorescent molecules and acetylene gas to trigger the secondary effect of fluorescence quenching, detection is realized, and other substances cannot trigger quenching. At a wavelength of 700 nm, the linear relationship (R 2 >0.99) between the fluorescence intensity and the acetylene concentration realizes accurate quantification of the acetylene concentration, and the minimum detection limit is 0.026 muL / L.

The invention relates to the technical field of organic synthesis, and discloses a synthesis method of 2-fluoro-3-bromine-5-chloroaniline, which specifically comprises the following steps: S1, mixing a compound I, hydrochloric acid and cuprous chloride, dropwise adding a sodium nitrite aqueous solution under the stirring condition of 45-55 DEG C, adding water after the reaction is finished, heating for water steaming, and recrystallizing and purifying with ethanol to obtain a compound II; s2, mixing the compound II with sulfuric acid, dropwise adding dibromohydantoin under a stirring condition at 25-30 DEG C, adding water after the reaction is finished, extracting with ethyl acetate, washing with water, layering, desolventizing, and recrystallizing and purifying with ethanol to obtain a compound III; and S3, mixing the compound III, ethanol and a platinum-carbon catalyst, introducing hydrogen while stirring at 70-80 DEG C, filtering after the reaction is finished, desolventizing filtrate to recover ethanol, cooling to separate out a solid, and filtering to obtain a compound IV, namely 2-fluoro-3-bromo-5-chloroaniline. The method is reasonable in design route, short in synthesis route, high in safety coefficient and suitable for industrial production.

The present application relates to a kind of bactericidal liquid agent based on cuprous hydroxide, and its preparation method and use method, with the suspension of cuprous hydroxide as bactericidal liquid agent, can effectively prevent and cure the disease caused by a variety of oomycetes, fungi and / or bacteria, wherein the suspension of cuprous hydroxide is obtained by stirring in water by the solution state cuprous chloride coordination compound decomposition.This bactericidal liquid agent of the present application can be far lower than the existing copper ion bactericide while the single copper dosage is lower, and the prevention and cure range of disease is wider.This not only solves the risk of heavy metal excess residue caused by the existing copper preparation, but also avoids the problem of needing to use multiple bactericides simultaneously to prevent and cure one or more diseases.The bactericidal liquid agent of the present application has important significance for plant disease prevention and cure, and has great application potential in agricultural market.

The invention discloses a preparation method of a CuInS2 / FeS2 wood mildew-proof antibacterial agent, which comprises the following steps: dissolving cuprous chloride, indium chloride tetrahydrate, ferric trichloride hexahydrate and thiourea or thioacetamide in ethylene glycol, and carrying out one-step solvothermal reaction and calcination to obtain a CuInS / FeS composite antibacterial agent; the material has triple effects of photo-thermal, photocatalysis and copper ion slow release, and can inhibit mildew and decay fungi on the surface of wood under the condition of visible-near infrared illumination or no illumination. NH4VO3 and 2-methylimidazole are added into a reaction system and calcined in an ammonia-containing atmosphere, so that a V < 5 + > / V < 4 + > redox pair can be formed on the surface, near-infrared absorption is further widened, electron-hole recombination is delayed, and long-acting antibiosis under weak light is realized. The process is simple, does not contain chromium and arsenic heavy metals, and is suitable for environmental protection of wood materials.

The application discloses a preparation method of refined cuprous chloride, which comprises the following steps: preparing an oxygen-containing copper compound into refined cuprous chloride, wherein the method does not need high-purity copper salt compared with the existing wet process, so that the production cost is low; in addition, the method further introduces a protective agent and a reducing agent to coordinate with each other, so that the product purity is higher than that of the existing process; in addition, the method does not involve waste liquid, and the recovered liquid can be reused, so that the process flow is short, safe and environmentally friendly.

The application discloses a method for preparing chiral amino alcohol compounds by using water as a hydrogen source and nickel metal as a catalyst. The method comprises the following steps: dissolving a nickel metal catalyst, zinc powder, an additive and a ligand in a dry organic solvent under an inert gas atmosphere; then adding an o-phthalimido ketone compound and water; and reacting at 40-70 DEG C to obtain a target product. The additive is one or more of silver iodide, cuprous bromide, cuprous iodide and cuprous chloride. The ligand is ( S, S p )- t‑ Bu-Phosferrox, S, S p )-Bn-Phosferrox, R, R p )-Ph-Phosferrox or R, R p )- i‑ Pr-Phosferrox. The application uses water as a hydrogen source and nickel metal as a catalyst to catalyze amino ketone compounds to obtain a series of chiral amino alcohol compounds. The method is simple, clean and environmentally friendly, and is suitable for the conventional preparation of chiral amino alcohol compounds.

The invention provides a reflective integrated electrochromic device. The reflective integrated electrochromic device sequentially comprises a first substrate layer, a working electrode layer, an integrated electrochromic layer, a counter electrode layer and a second substrate layer, the integrated electrochromic layer comprises a metal source compound; the metal source compound is selected from silver chloride, silver acetate, silver nitrate, silver perchlorate, silver sulfate, silver cyanide, silver sulfide, silver hexafluorophosphate, silver tetrafluoroborate, silver tetrachloroaluminate, silver trifluoromethanesulfonate, silver bis (trifluoromethane sulfonimide), copper fluoride, copper chloride, copper cyanide, copper sulfate, copper acetate, copper aluminate, cuprous fluoride, cuprous chloride, cuprous cyanide, gold chloride and gold cyanide; the catalyst is one or more of gold sulfide, gold chloride, gold (II) sulfide, nickel chloride, nickel sulfate, cobalt chloride and platinum chloride. The device has a relatively large transmittance / reflectivity dynamic change range, can perform light and heat management at the same time, and can keep a stable coloring or fading state for one month or even several months under a no-load condition.

The application provides a method for preparing bismuth trioxide-cuprous oxide nanocomposite based on a synergistic reaction, which comprises the following steps: dispersing sodium bismuthate, sodium sulfite and cuprous chloride in deionized water to obtain a solid-liquid mixture; and placing the solid-liquid mixture under a hydrothermal condition, so as to in-situ prepare the Bi2O3-Cu2O nanocomposite through the synergistic effect of the redox reaction between sodium bismuthate and sodium sulfite in the system and the anion exchange reaction between cuprous chloride and hydroxyl ions generated in-situ. The application is based on the synergistic effect of the redox reaction and the anion exchange reaction under the same hydrothermal condition, and high-purity Bi2O3-Cu2O nanocomposite can be prepared in-situ in one step without adding an alkali source and a template agent. The prepared composite can effectively form a p-n heterojunction, significantly inhibit the recombination of photo-generated carriers, improve the photocatalytic activity and redox capacity of the material, and the preparation process is simple, green and economical, and easy for industrialized production.

The invention discloses a preparation method of sabesartan sodium in the technical field of medicines, which comprises the following steps of: adding cuprous chloride and a catalyst in the SN2 nucleophilic substitution reaction process of 8-chloro ethyl caprylate serving as a raw material and capralan, so that the reaction selectivity and the reaction yield are improved; a sodium hydroxide hydrolysis reaction is carried out, and a reducing agent is added under an anaerobic condition, so that the formation of colored impurities is minimized; and finally salifying with sodium hydroxide in an alcohol solvent to obtain a final product SNAC. The method has the advantages of high efficiency, simplicity, easiness in factory operation, good product appearance, high purity, economical and easily available raw materials and good industrialization prospect.

The invention discloses a method for treating chloride ions in a lithium precipitation mother liquor concentrated solution, which comprises the following steps: adding copper sulfate into an acid-regulated lithium precipitation mother liquor concentrated solution for reaction to obtain a copper chloride-containing lithium precipitation mother liquor concentrated solution; regulating the pH value of the lithium precipitation mother liquor concentrated solution, adding sodium sulfite to precipitate copper chloride in the form of cuprous chloride, and separating to obtain cuprous chloride precipitate and lithium precipitation feed liquid containing residual chlorine and bivalent copper; further concentrating the lithium precipitation feed liquid containing residual chlorine and bivalent copper to obtain concentrated feed liquid; and finally, regulating and controlling the pH value of the concentrated feed liquid, adding sodium sulfite into the concentrated feed liquid to reduce residual bivalent copper into monovalent copper, and adding cuprous chloride precipitate as a guide seed crystal to deeply remove residual chlorine and copper so as to obtain a lithium precipitation liquid.

The invention provides an application of a benzoate compound in a synthesis process of copper phthalocyanine, which comprises the following steps: S1, adding 3g of benzoate compound, 310g of 100% phthalic anhydride, 231g of urea and 1500ml of solvent alkylbenzene into a 3000ml three-neck bottle provided with a stirring device, a thermometer and a condenser, uniformly heating to 170 DEG C within 4 hours while stirring, and keeping the temperature for 2 hours; s2, 231 g of urea is added, the temperature is evenly increased to 190 DEG C within one hour, and heat preservation is conducted for 2 hours; s3, adding 61 g of 100% cuprous chloride and 4 g of 100% ammonium molybdate, uniformly heating to 210 DEG C within 5 hours, carrying out heat preservation and stirring reaction for 6 hours, and cooling to 100 DEG C; according to the application of the benzoate compound in the synthesis process of the copper phthalocyanine, a proper amount of the benzoate compound is added in the synthesis process of the copper phthalocyanine, so that the product yield is increased, the consumption of raw materials is reduced, and the emission of three wastes is reduced, and therefore, the production cost is reduced, and the pollution to the environment is reduced.

The application belongs to the technical field of organic synthesis, and relates to an aryl-substituted halogenated s-triazine compound and a preparation method thereof. The aryl-substituted halogenated s-triazine compound is shown as formula (I). The preparation method of the compound is as follows: a benzonitrile derivative, ethylene glycol methyl ether, dicyandiamide and potassium hydroxide are mixed and heated, and compound 1 is obtained through reaction; compound 1 and acetonitrile are mixed, and a sulfuric acid solution, sodium nitrate and a cuprous chloride solution are added dropwise in sequence, and then reaction is carried out after dropwise addition is completed; and a target product is obtained. The synthesis method has the advantages of less impurity generation, high conversion rate and high product quality.

This invention provides a method for preparing and applying a photoluminescent ink. The method involves adding a small amount of polyvinyl alcohol to a sodium tungstate dihydrate solution, then adding an appropriate amount of sulfuric acid to adjust the pH to 1.2-2.0 to obtain a tungstic acid solution. Further reaction and decomposition yield WO3, with the WO3 particles being kept small within the acidic range. Nickel sulfate hexahydrate is then added for reaction, and finally, a small amount of cuprous chloride is added to the solution and stirred to obtain the photoluminescent ink. This invention does not produce any toxic or harmful substances during the preparation of the photoluminescent ink, making it environmentally friendly and pollution-free. Furthermore, the process can be completed at room temperature, without any energy loss. The prepared photoluminescent ink can be used for writing and drawing on hydrophilic substrates such as paper and cotton cloth. Additionally, by adding an adhesive to the photoluminescent ink, patterns can be quickly printed using a stamp. After drying, the pattern becomes invisible, but it becomes visible under ultraviolet light. This method offers significant advantages in intelligent anti-counterfeiting and instant display applications.

The invention discloses a preparation method of a compound 2-N-tert-butyloxycarbonyl-2, 3-diaminopropionic acid, and mainly solves the technical problems that a product in the original process is yellow in color, contains iodine residues and is low in yield. The preparation method comprises the following steps: suspending 3-Cl-2-N-t-butyloxycarboryl alanine in ammonia water, adding a catalyst cuprous chloride, heating to 40 DEG C, carrying out a sealed reaction for 72 hours, carrying out suction filtration after the reaction is completed, carrying out vacuum concentration to remove ammonia, adding methanol to precipitate a solid, and carrying out suction filtration to obtain 2-N-t-butyloxycarboryl-2, 3-diaminopropionic acid.

The invention provides a Cu2MoS4 / CS-CDs compound nano-enzyme and a preparation method and application thereof, the preparation method comprises the following steps: (1) mixing and stirring sodium molybdate, cuprous chloride and thiourea, and then reacting to obtain Cu2MoS4; (2) mixing chitosan, citric acid, dopamine and an acetic acid aqueous solution, carrying out ultrasonic treatment, and then digesting to obtain CS-CDs; and (3) mixing the Cu2MoS4 with the CS-CDs and water, and then carrying out centrifugation and drying so as to obtain the Cu2MoS4 / CS-CDs compound nano enzyme. The compound nano enzyme provided by the invention is used in proline detection, and has the advantages of wide linear range and low detection limit, the detection method has the characteristics of high accuracy, simplicity, rapidness and strong specificity, and coexisting amino acids and other substances do not interfere with the determination of a sample.

The invention discloses a method for preparing cuprous chloride from copper chloride, and belongs to the technical field of vacuum preparation of cuprous chloride. The invention relates to a method for preparing cuprous chloride by using copper chloride, which comprises the following steps: carrying out microwave radiation heating on a mixed solution of CuCl2.H2O and CO (NH2) 2 under a vacuum condition, and respectively recovering generated CO2 and ammonia gas to obtain cuprous chloride; the temperature preservation stage of microwave radiation heating comprises three stages: in the first stage, the temperature is 10-25 DEG C, and the temperature is preserved for 10-30 minutes; the temperature of the second stage is 30-45 DEG C, and the heat preservation time is 15-35 minutes; and in the third stage, the temperature is 50-70 DEG C, and the heat preservation time is 15-45 minutes. The urea and the copper chloride solution are used as raw materials, and cuprous chloride with high purity and high yield can be obtained in a three-section heating and microwave radiation superposed manner. In addition, according to the preparation method of cuprous chloride, damage of covalent bonds of copper chloride can be accelerated, the decomposition temperature of copper chloride is reduced, and the reaction time is shortened.

The invention discloses an industrial circulating cooling water electrochemical dechlorination automation system and method based on cuprous chloride solid phase fixation. The method comprises the steps that industrial circulating cooling water containing chloride ions is introduced into a chlorine absorption reaction zone; in the chlorine absorption reaction zone, reducing current or reducing potential is applied to a cathode electrode, and chloride ions are fixedly removed from a water phase by generating an insoluble cuprous chloride solid phase; cuprous chloride is separated and transferred from the main water body; in the regeneration zone, cuprous chloride is converted into bivalent copper ions and chloride ions in an electrochemical oxidation or chemical oxidation mode. Through the mode, the industrial circulating cooling water electrochemical dechlorination method based on cuprous chloride solid-phase immobilization realizes selective immobilization and removal of chloride ions, and cuprous chloride is migrated or discharged from an industrial circulating cooling water system through the regeneration step, so that under the condition of industrial circulating cooling water with the chloride ion concentration of 500-2000mg / L, the chloride ions in the industrial circulating cooling water can be effectively removed. The substantial reduction of the total chlorine content is realized.

A separator for lithium-ion batteries and a modification method. The modification method comprises: using anisole as a solvent, octakis(chloropropyl)silsesquioxane as an initiator, methyl methacrylate as a monomer, cuprous chloride as a catalyst, and pentamethyldiethylenetriamine as a ligand, and synthesizing polymethacrylate-polyhedral oligomeric silsesquioxane by means of an atom transfer radical polymerization method; preparing a modified slurry from the polymethacrylate-polyhedral oligomeric silsesquioxane; and coating a surface of a base film of a separator with the modified slurry and drying same, so as to obtain a separator coated with polymethacrylate-polyhedral oligomeric silsesquioxane. The improved technique not only achieves significant effects in terms of improving the mechanical properties and thermal stability of a separator, but also realizes the optimization of cost efficiency and supply stability while maintaining good electrolyte wettability and reducing the internal resistance of a battery cell, thereby exhibiting potential in a wide range of applications.

The invention provides a plasma copper etching method and semiconductor process equipment. According to the method for etching the copper through the plasma, firstly, a copper layer is modified through first process gas, the surface of the copper layer is modified into cuprous chloride, then, second process gas reacts with the cuprous chloride to generate cuprous nitride, and the reaction is continuously carried out in the direction of etching the copper layer till etching of the copper layer is completed. The cuprous nitride is low in melting and boiling point and is easy to volatilize in the etching process, so that the etching uniformity is improved, a process chamber is prevented from being polluted, and the process stability is improved.

The utility model relates to the technical field of dust recycling equipment, in particular to a dust recycling system in cuprous chloride production, which comprises a mounting base, a linkage assembly is arranged on the upper side of the mounting base and comprises a main sliding seat, a pair of movable sliding rails is arranged at the lower end of the main sliding seat and is fixedly connected with the upper end of the mounting base through bolts, and the movable sliding rails are connected with the mounting base through bolts. The lower end of the main sliding seat is connected with the pair of movable sliding rails in a sliding mode, a servo motor is arranged at the left end of the main sliding seat, the right end of the servo motor is fixedly connected with the left end of the main sliding seat through a bolt, and the output end of the right side of the servo motor penetrates through the main sliding seat. A right-angle pipe on the right side of a front linkage frame and a dust collection hopper at the right end of the front linkage frame are controlled to swing in a left-right shaking mode through a first double-linkage air cylinder, the height of a sliding table is controlled through a second double-linkage air cylinder to control the height of the right-angle pipe and the height of the dust collection hopper at the right end of the right-angle pipe, and the suction area for dust recycling is increased by continuously changing the position of the dust collection hopper. Therefore, the working efficiency of dust recovery is improved.

The invention relates to a preparation method of a chlorinated indolocarbazole compound, and belongs to the technical field of chemical synthesis. The preparation method comprises the following steps: in a reaction solvent and an alkali environment, controlling the reaction temperature and time, and reacting a reaction substrate under the condition of a bimetallic salt catalyst to obtain a chloroindolocarbazole compound product, the bimetallic salt catalyst comprises palladium salt and copper salt. The palladium salt is selected from at least one of palladium acetate and palladium chloride; the dosage of the palladium salt is 0.0005-0.01 times of the mole number of the reaction substrate. The copper salt is selected from at least one of copper powder, cuprous chloride, cuprous bromide, cuprous iodide and cuprous oxide; the dosage of the copper salt is 0.01-1 time of the mole number of the reaction substrate. When the chloroindolocarbazole structure is prepared, the dosage of the palladium catalyst can be remarkably reduced, no ligand is needed, the raw material conversion rate is high, post-treatment is simple and convenient, and the method is suitable for industrial production.

The invention provides an acetylene hydrochlorination reaction liquid copper-based catalyst and a preparation method and application thereof, and belongs to the technical field of chemical industry catalysis. The liquid copper-based catalyst for the acetylene hydrochlorination reaction is obtained by uniformly mixing cuprous chloride, concentrated hydrochloric acid and metal chloride. The copper-based catalyst exists in a reactor in a liquid complex state, and has the advantages of high activity and good stability; and the copper-based catalyst belongs to a fluid type catalyst, has good intermolecular heat transfer performance, is easy to replace and regenerate, does not have the problem of pressure drop between bed layers, is uniform in heat transfer, and does not cause the phenomenon of overhigh local temperature. The copper-based catalyst is used for catalyzing an acetylene hydrochlorination reaction to prepare vinyl chloride, the reaction is carried out on the surface and / or in the liquid complex, the conversion rate of acetylene is greater than 98%, the by-product (mainly dichloroethane) is lower than 0.5%, and the copper-based catalyst has a good application prospect.

This invention relates to the field of pollutant detection technology, and discloses a method for preparing bimetallic selenides and its non-enzymatic electrochemical sensor and applications. The reference electrode of the non-enzymatic electrochemical sensor is a silver / silver chloride electrode, the auxiliary electrode is a platinum wire electrode, and the working electrode is a glassy carbon composite electrode containing a bimetallic selenide coating. The bimetallic selenide is CuInSe2, which exhibits sensitivity in identifying parathion. This improves the accuracy and ease of operation in detecting parathion and reduces the detection cost. The method for preparing the bimetallic selenide proposed in this invention uses ethylamine and N,N-dimethylformamide as solvents, and through a solvothermal reaction, reacts cuprous chloride, indium chloride, and selenium powder to generate CuInSe2, which has the advantages of high reaction efficiency and low manufacturing cost.

The application discloses a kind of semi-fluorocarbon for removing emulsified silicone oil filling and its preparation method and application, comprising, olefin and perfluoroalkyl iodine are dissolved in acetonitrile, initiator is added and reacted under light source, to obtain fluorine-containing iodoalkane;Fluorine-containing iodoalkane is dissolved in isopropyl alcohol, and after adding reducing agent and heating reaction, it is washed to obtain semi-fluorocarbon with the structure of CF3 (CF2) 3 (CH2) 4CH3, named semi-fluorinated nonafluorononane;Wherein, the molar ratio of the olefin and perfluoroalkyl iodine is 1:1-1.4, and the initiator is cuprous chloride.The application controls the proportion of raw materials, carries out reaction under the condition of suitable initiator, simultaneously preferably zinc powder is used as reducing agent, effectively improves product purity and product yield, and operation process is simple, safe, and CF3 (CF2) 3 (CH2) 4CH3 prepared has not only good stability, but also good biocompatibility, no cytotoxicity, no skin sensitization, no acute eye irritation, can dissolve or wrap emulsified silicone oil droplets, and play a great role in the removal of emulsified silicone oil.

A method of removing arsenic from a liquor which comprises a platinum group metal and arsenic by adjusting the HCl concentration in the liquor to at least 6 M, adding a reducing agent to the liquor either before, during or after adjusting the HCl concentration to reduce the oxygen-reduction-potential value of the liquor to less than 625 mV, and then removing the arsenic by distillation. HCl can be added during distillation to maintain the HCl molarity. The reducing agent can be a transition metal chloride, e.g. cuprous chloride (CuCl) or ferrous chloride (FeCl2). After removal of arsenic the Cu : Pt ratio can be reduced by blending with a Pt containing liquor with a lower copper concentration.

This invention discloses a method for producing copper oxide nanosheets from PCB acidic etching solutions, belonging to the field of PCB acidic etching solution treatment technology. This invention uses a reducing agent to react with acidic waste etching solution for precipitation. During the precipitation process, by controlling the pH, the content of hydroxide-type alkalis, and carbonate-type alkalis, copper ions can first be converted into cuprous chloride and basic copper carbonate intermediates before decomposing into copper oxide nanosheets. The process of this invention is simple, low-cost, and can produce high-purity copper oxide nanosheets from PCB acidic waste etching solution without high-temperature calcination. The provided method is applicable to copper plating, energy storage, solar cells, and chemical catalysts in the electronics industry.

The invention relates to a sterilization liquid agent based on cuprous hydroxide, and also relates to a preparation method and a use method thereof, the suspension of cuprous hydroxide is used as the sterilization liquid agent, and diseases caused by various oomycetes, fungi and / or bacteria can be effectively prevented and treated; wherein the turbid liquid of cuprous hydroxide is obtained by stirring a cuprous chloride coordination compound in a solution state and decomposing the cuprous chloride coordination compound in water. According to the sterilization liquid, the single-time copper dosage is far lower than that of an existing copper ion sterilization agent, and meanwhile the prevention and treatment range of diseases is wider. Therefore, the risk of excessive heavy metal residue caused by the existing copper preparation is solved, and the problem that multiple bactericides need to be used at the same time for preventing and treating one or more diseases is also avoided. The bactericidal liquid provided by the invention has important significance for preventing and treating plant diseases, and has huge application potential in the agricultural market.

The invention discloses a method for synchronously removing copper and chlorine in zinc hydrometallurgy, which comprises the following steps: S1, taking a pre-copper deposition solution with the pH value of 2.5-3.0, adding iron powder which is 0.9-1.2 times of a theoretical calculation value to carry out a replacement reaction, and carrying out solid-liquid separation to obtain copper slag and a post-replacement solution; and S2, the copper slag obtained in the S1 and the replaced liquid are added into waste electrolyte, the pH is adjusted to range from 1.5 to 2.0, an oxidation-reduction reaction is carried out under the weak acid condition, and cuprous chloride and dechlorinated liquid are obtained. Copper removal and dechlorination are combined into one procedure, and copper removal and dechlorination are realized under a weak acid condition, so that valuable metal recovery and impurity removal of the whole zinc smelting system are improved.