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131 results about "BASIC COPPER SULFATE" patented technology

Method for producing basic copper chloride, cupric sulfate pentahydrate from copper-containing etching waste liquid

The invention relates to a method for producing copper chloride hydroxide and blue vitriod by using cupriferous etching wastewater; the method comprises the following steps: acidic copper chloride etching wastewater and alkaline copper chloride etching wastewater are neutralized and crystallized to get acidic copper chloride crystal under the condition of strictly controlling filling liquid and the Ph range of a reaction kettle, and then pumped and filtrated, and centrifugated; part of the obtained alkaline copper chloride crystal is dried to obtain finished products while the other is added with NaOH solution for alkali conversion to obtain copper oxide, and then is acidulated by sulphuric acid, crystallized, washed, centrifugated, and dried to obtain blue vitriod products. The method for producing blue vitriod by directly using sulphuric acid-oxyful etching wastewater includes the following steps: sulphuric acid-oxyful etching wastewater and composition brass wasterwater in a PCB manufacture are blended together and added with NaOH to form cupric hydroxide precipitation which filtrated, washed, and then acidulated by sulphuric acid to obtain copper sulphate solution; after the copper sulphate solution is cooled, crystallized, centrifugated and dried, and the blue vitriod is obtained.
Owner:HUIZHOU DONGJIANG ENVIRONMENTAL PROTECTION TECH

Production method for health food rich in multiple trace elements and used for rehabilitation of coronary heart disease

InactiveCN103355607AOvercome absorbencyOvercome the disadvantages of side effects caused by direct administrationFood preparationChromium(III) chlorideBASIC COPPER SULFATE
The invention relates to a production method for health food rich in multiple trace elements and used for rehabilitation of a coronary heart disease. The production method comprises the following steps: filling 10 kg of grains into a square container and weighing 29 to 31 g of chromium chloride, 248 to 252 g of zinc chloride, 2.5 to 2.8 g of nickel chloride, 6 to 7 g of sodium selenite, 0.6 to 0.7 g of sodium metavanadate, 88 to 89 g of germanium tetrachloride, 155 to 160 g of copper sulphate, 140 to 145 g of manganese chloride, 288 to 292 g of iron chloride, 10 to 14 g of lithium chloride, 7 to 8 g of sodium molybdate, 0.6 to 0.7 g of cobalt chloride, 605 to 607 g of sodium silicate, 82 to 85 g of strontium sulfate and 65 to 68 g of sodium fluoride; mixing above-mentioned salts, adding water for dilution of the salts until 6 to 6.5 kg of a mixed salt solution is obtained and allowing the salt solution to be completely absorbed by the grains; and drying and crushing the grains so as to obtain the health food. The health food provided by the invention has a plurality of trace elements needed by a human body, and the trace elements and amino acids are compounded to form a plurality of amino acid salts which can be easily absorbed by the human body; the health food can maintain balance of trace elements in the human body, prevent and correct metabolic disorders of inorganic salts and trace elements, prevent and restore incomplete cells and regenerate new cells, enables blood vessels to be unblocked and rehabilitation of the coronary heart disease to be realized and has prevention and health care effects on the coronary heart disease.
Owner:买世禄 +1

Comprehensive utilization method of waste liquor in production of basic cupric carbonate

The invention discloses a comprehensive utilization method of waste liquor in the production of basic cupric carbonate and relates to the field of treatment methods of industrial wastewater. The invention aims at providing a comprehensive utilization method of waste liquor in the production of basic cupric carbonate, and in particular relates to a method for reusing sodium bicarbonate in the waste liquor. The waste liquor in the production of the basic cupric carbonate is the waste liquor generated after the basic cupric carbonate is produced by a reaction between an acidic copper chloride solution or an acidic copper sulfate solution and a sodium carbonate solution. The comprehensive utilization method of the waste liquor in the production of the basic cupric carbonate mainly comprises the following steps: adding a little distilled water into a reaction kettle as a base solution; when the reaction temperature rises to 35-90 DEG C, starting a stirring device, and adding the waste liquor containing sulfate radicals or chlorine and the acidic copper solution into the reaction kettle for reaction, wherein the pH value during the addition of the solutions is controlled to be 3-6; and filtering, washing, drying and sieving reaction products to obtain the basic copper salt. The method disclosed by the invention is simple to operate, easy to control reaction conditions, and widely applicable to the recycling and reusing of the waste liquor in the production of basic cupric carbonate.
Owner:SHENZHEN SHENTOU ENVIRONMENT TECH CO LTD

Soluble fine-denier PVA (Polyvinyl Alcohol) fiber and purpose thereof

The invention discloses a soluble fine-denier PVA (Polyvinyl Alcohol) fiber. The PVA fiber has the single-fiber linear density of 0.1dtex to 1.0dtex and the dry break strength which is greater than or equal to 4cN/detx, and has the property of being dissolved in water at 20 to 100 DEG C; the PVA fiber is made through the steps of the preparation of a spinning stock solution, the preparation of a nascent fiber and post treatment by adopting PVA with the polymerization degree of 1,000 to 2,500 and the alcoholysis degree of 88.0(mol)% to 99.9(mol)% as a raw material; the preparation of the spinning stock solution comprises the following steps of agitating and mixing the PVA with a cross-linking agent, then dissolving in the water, and confecting to be the spinning stock solution; the cross-linking agent is one or multiple of boric acid, borax, aluminum chloride, aluminum sulfate, zinc sulfate, copper sulfate, copper chloride and titanium chloride; the mass concentration, in the spinning stock solution, of the PVA is 10 percent to 20 percent; the addition amount of the cross-linking agent is 0.8 percent to 2.0 percent of the mass of the PVA. The PVA fiber provided by the invention is low in linear density and good in dispersity which can reach a grade 1; when being used in the fracturing of oil and gas fields, the fracturing temporary plugging of the oil and gas fields and the well cementation of the oil and gas fields, the fiber can be more uniformly dispersed in base fluid, so as to improve the fracturing, temporary plugging and well cementing performance of the soluble fine-denier PVA fiber.
Owner:CHINA PETROCHEMICAL CORP +1

The water bath preparation method of cu2znsns4 or cu2cdsns4 nanocrystalline film

The invention discloses a low-temperature preparation method of a Cu2ZnSnS4 or Cu2CdSnS4 nanocrystalline film with low cost and high quality, comprising the following steps of: firstly adding a certain amount of copper sulphate, zinc chloride or cadmium chloride, stannous chloride and thioacetamide into a beaker with deionized water, letting glass which undergoes ultrasonic cleaning by the use ofalcohol, acetone and deionized water vertically suspend inside the beaker; adding dropwisely a diluted hydrochloric acid solution into the beaker to adjust the pH value and make the solution to stay in the acid condition; heating up and reacting for a certain time at a certain stirring rate, carrying out annealing treatment on the glass, on which the Cu2ZnSnS4 or Cu2CdSnS4 nanocrystalline film grows, in Ar and H2S(5%) atmospheres to finally obtain the high-quality Cu2ZnSnS4 or Cu2CdSnS4 nanocrystalline film. The invention has the following advantages: the nanocrystalline preparation method issimple; the synthesis temperature is low; the cost of precursor materials is low; and the nanocrystalline film prepared is uniform and compact. The Cu2ZnSnS4 or Cu2CdSnS4 nanocrystalline film prepared in the invention can be used as an absorbed layer for photovoltaic devices or a good thermoelectric material.
Owner:SHANGHAI UNIV

Method for preparing basic bluestone by utilizing PCB ammonium persulfate-H2SO4 micro-etched waste liquid

The invention discloses a method for preparing basic bluestone by utilizing PCB ammonium persulfate-H2SO4 micro-etched waste liquid. The method comprises the following steps of: (1) preheating ammonium persulfate-H2SO4 micro-etched waste liquid and basic solution to the temperature of between 50 and 100 DEG C respectively, and adding the preheated micro-etched waste liquid into a neutralizing reaction kettle with a stirring device; (2) gradually adding the basic solution into the micro-etched waste liquid with the stirring for neutralization reaction, and controlling the pH value in the neutralizing reaction kettle to be between 8.0 and 13.0; (3) after filtering precipitate, adding dispersant into filtrate; (4) transferring the filtrate of which the pH value is regulated to an ammonia evaporation reaction kettle for atmospheric distillation to ensure that ammonia escapes from the reaction kettle till the pH value is reduced to be between 7.5 and 8.5, and completing ammonia evaporation; and (5) filtering, washing, drying and sifting basic bluestone precipitate in the material to obtain a crystal-type basic bluestone product. The method has the advantages of efficiently recycling copper resource and contributing to generating high-purity basic bluestone, along with simple whole process equipment, easily controlled operating conditions, and less equipment investment.
Owner:GUANGZHOU KECHENG ENVIRONMENTAL PROTECTION TECH

Method for preventing and curing ginseng diseases by mixing carbendazim with basic copper sulfate

InactiveCN102150687ABig impact on productionBiocideFungicidesPlant diseaseBiology
The invention provides a method for preventing and curing ginseng diseases by mixing carbendazim with basic copper sulfate, belonging to the field of the modernization of the traditional Chinese medicines, and aiming at solving the problems that the carbendazim is easy to generate drug resistance to the pathogenic bacteria and is bad in a disease-resistant effect when the carbendazim is independently taken as the bactericide. The method for sterilizing the ginseng soil comprises the steps of: taking the smashed plant straw, the turfy soil or the fine bed soil as a carrier, evenly mixing the carbendazim and the basic copper sulfate with the carrier, splashing the mixture on the surface of the ginseng bed soil before transplanting, evenly mixing with the bed soil, and transplanting. The method for sterilizing the bed surface before the ginseng is sprouted comprises the steps of: mixing the carbendazim with the basic copper sulfate to prepare mixed water solution, and spraying the water solution onto the surface of the bed before the ginseng is sprouted. The method for preventing and curing the disease after the ginseng is sprouted comprises the steps of: mixing carbendazim with basic copper sulfate to prepare mixed water solution, and irrigating the mixed water solution onto the surface of the bed after the ginseng is sprouted. The method is used for preventing and curing the melasma, the rust corrosion disease and the sclerotiniose of the ginseng.
Owner:JILIN AGRICULTURAL UNIV

Cu2O@CuO semi-core-shell structure nano composite material and preparation method therefor

InactiveCN105116030AEffective use of electrochemical detectionEvenly dispersedMaterial electrochemical variablesCrosslinked chitosanPorous carbon
The invention discloses a Cu2O@CuO semi-core-shell structure nano composite material and a preparation method therefor. The structure comprises porous carbon sponge and Cu2O@CuO semi-core-shell structure nanoparticles absorbed on the sponge. The carbon sponge employs crosslinked chitosan as a framework and CNTs are embedded into the crosslinked chitosan. The Cu2O@CuO semi-core-shell structure nanoparticles comprise a Cu2O core at the inner layer and a CuO shell at the outer layer. The CuO shell at the outer layer is a semi-shell structure formed on the surface of the carbon sponge. The preparation method is as follows: carbon sponge is prepared through an ice template method; copper sulphate is absorbed by the carbon sponge; the copper sulphate is subjected to in-situ reduction by sodium borohydride; further oxidation in the air is carried out; cleaning and drying are carried out. The method is advantaged by simple technology, mild reaction conditions, low preparation cost and good stability. In the prepared composite material, the CS plays a support role, the embedded CNTs play a role in electron conduction, the Cu2O@CuO semi-core-shell structure has advantages compared with a complete core-shell structure, namely, CuO at the outer layer play a main catalysis role, and the lower part of Cu2O at the inner layer contacts with the surface of the carbon sponge directly and plays a role in auxiliary catalysis and electron conduction. The composite material can be widely applied in the biosensor field.
Owner:OCEAN UNIV OF CHINA

Preparation of nano cuprous oxide by two-step method of electron beam irradiation and compressed air oxidation

The invention relates to preparation of nano cuprous oxide by a two-step method of electron beam irradiation and compressed air oxidation, which comprises the steps: taking cupric sulfate as a raw material, and preparing 0.05 mol/L cupric sulfate by using deionized water; taking polyethylene glycol (PEG) as a surfactant; using ammonia water and acetic acid to adjust the pH value of a cupric sulfate solution to be 4.0; using high-energy electron beams generated by an electron accelerator to irradiate the cupric sulfate solution at normal temperature and pressure, wherein the irradiation dose is 300 kGy; controlling the dimension of irradiated product particles by controlling the growth rate of crystal nucleus through the surfactant and the concentration of copper ions in the solution; introducing air into irradiated suspension for oxidation reaction at normal temperature and pressure, wherein the airflow rate is 3 L/min, and the reaction time is 8 hours; performing centrifugal separation and washing on the suspension after reaction; and drying the obtained product for 3 hours in a vacuum drying chamber, and obtaining grey cuprous oxide powder. The nano cuprous oxide particles are spherical; and the particle diameter of the nano cuprous oxide particles is between 25 and 50 nanometers, and the mean particle diameter of the nano cuprous oxide particles is 30 nanometers.
Owner:SHANGHAI UNIV
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