46 results about "Basic copper carbonate" patented technology

The invention relates to the field of catalysts, in particular to a preparation method of a green and efficient copper catalyst. Comprising the following steps: (1) mixing basic cupric carbonate, ammonia water and water, adding ammonium salt at the same time, and preparing a copper ammonia solution as a precursor solution at room temperature; (2) mixing the precursor solution with a carrier or a carrier precursor to realize active component loading and catalyst preparation; and (3) filtering, washing, drying and roasting the mixed system in the step (2) to prepare the copper-based catalyst. According to the preparation method of the copper ammonia complexing precursor solution, preparation of the copper ammonia complexing solution at room temperature can be achieved, heating operation in the precursor preparation process is avoided, meanwhile, the nitrogen content of the system and nitrogen emission in the subsequent roasting process can be reduced by preparing the copper-based catalyst through the basic copper carbonate precursor, and efficient and green preparation of the catalyst is achieved.

The invention provides a novel mineral separation activating agent for sulphide ores and a preparation method of the novel mineral separation activating agent. The cleaning agent comprises 1-2 parts of basic cupric carbonate, 2-4 parts of ammonium chloride, 2-4 parts of nanometer jade powder, 2-3 parts of alginic acid, 1-2 parts of allyl glycidyl ether, 2-3 parts of peregal O, 2-3 parts of sodium di-sec-octyl maleate sulfonate, 2-3 parts of vinyl acetate, 4-7 parts of hydrogen peroxide, 4-6 parts of disodium hydrogen phosphate and 40-50 parts of water. The preparation method comprises the following steps: firstly mixing basic cupric carbonate and ammonium chloride to obtain a first mixture, then mixing the rest components, heating and stirring to obtain a second mixture, and finally uniformly mixing the first mixture and the second mixture. The activating agent overcomes the defects of a traditional activating agent, has efficient activating performance, can improve the beneficiation efficiency of low-grade, complex and refractory sulfide ore, is environmentally friendly, good in stability and high in adaptability, and provides technical support for efficient development of sulfide ore resources.

The invention relates to the technical field of etching waste liquid treatment, and provides a nickel-containing etching waste liquid treatment method which comprises the following steps: 1, neutralizing and extracting copper; step 2, nickel deposition; step 3, evaporative crystallization; wherein the step I specifically comprises the following steps: slowly adding sodium bicarbonate into the nickel-containing waste liquid, stirring to adjust the pH value of the waste liquid to weak acidity, preferentially forming a basic cupric carbonate Cu2 (OH) 2CO3 precipitate when Cu < 2 + > is within the pH value range, and stably remaining Ni < 2 + > in the solution, and carrying out operations such as filtering separation and the like; and the step 2 specifically comprises the treatment of adding sodium hydroxide into the nickel-containing filtrate from which most of copper is removed to adjust the pH value to be neutral and the like. According to the technical scheme, the problems that according to an existing nickel-containing etching waste liquid treatment method, the harmless treatment effect is achieved in a chemical precipitation mode, the main purpose is to stabilize solid nickel, although the emission requirement is met, the waste liquid still contains copper, soluble salt and other components, and huge resource waste is caused by direct emission are solved.

The application discloses a preparation method of a high-selectivity hydrogen peroxide production catalytic electrode, and the method comprises the following steps: (1) dissolving a soluble copper salt and a soluble zinc salt in water to prepare a mixed precursor solution containing Cu2+ and Zn2+ with different proportions; (2) adding a precipitant solution to the mixed precursor solution obtained in the step (1) under stirring, controlling the pH range of the reaction system, regulating the local coordination environment, the local electronic structure, especially the microenvironment of the lattice hydroxyl of the basic copper carbonate, and making the system generate a zinc-modified basic copper carbonate precipitate through aging crystallization, and then performing solid-liquid separation, washing and drying treatment to obtain a zinc-modified basic copper carbonate material; and (3) dispersing the zinc-modified basic copper carbonate material obtained in the step (2) into a solvent to form a catalyst slurry, and loading the catalyst slurry on the surface of a conductive substrate, and then performing drying to obtain a supported zinc-modified basic copper carbonate catalytic electrode. The reasonable lattice hydroxyl structure of the obtained material can be used for electrochemical oxidation of water to prepare hydrogen peroxide in a sulfate electrolyte system, and the material has good hydrogen peroxide production capacity and faradic efficiency.

This invention relates to the field of non-ferrous metal smelting technology and discloses a high-recovery, emission-reducing copper anode mud treatment process with controlled potential. Each step employs a controlled potential method to regulate the metal leaching rate and reduction rate, thereby reducing the loss rate of valuable metals in each step and improving the overall metal recovery rate. A sulfidation process is used to treat the antimony-bismuth removal solution, enriching antimony and bismuth in the form of sulfides. An evaporation crystallization method is used to open most of the copper in the anode mud in the form of crude copper sulfate. While enriching antimony and bismuth, the production of basic copper carbonate is significantly reduced, eliminating the "rotary kiln selenium distillation" and "water leaching copper separation" processes, and reducing system acid expansion caused by the "rotary kiln selenium distillation" process. By using the recycled reduction solution and secondary gold separation solution as acid sources for the antimony-bismuth removal process and the primary gold separation solution, the waste acid reuse rate and valuable element recovery rate can be improved. This effectively reduces the total wastewater discharge, simplifies the process flow, and improves the recovery rate of valuable metals.

The invention belongs to the technical field of composite coatings, and particularly relates to a copper-tin electroplating solution and a preparation method and application thereof.The preparation method of the electroplating solution comprises the steps that citric acid is dispersed in water, potassium hydroxide is added, and a reaction solution 1 is obtained; basic cupric carbonate is added into the reaction solution until the solution becomes clear and does not generate bubbles, the solution is cooled, monopotassium phosphate is added, and a reaction solution 2 is obtained; dissolving potassium stannate in a dilute alkali hot solution, and after the potassium stannate is completely dissolved, adding hydrogen peroxide to obtain a reaction solution 3; and adding the cooled reaction liquid 3 into the reaction liquid 2 to obtain the electroplating liquid. The preparation method of the electroplating solution is simple and almost free of pollution, the electroplating solution is used for electroplating a metal test piece, and an obtained plating layer has high corrosion resistance.

Provided is a copper oxide, for which the specific surface area measured by a nitrogen adsorption method is 2.9 m2 / g or more, and the tap density measured in accordance with JIS Z 2512: 2012 is less than 1.1 g / cm3.

The application relates to the technical field of waste copper recovery, and discloses a process for producing special copper oxide by recycling waste copper materials, which comprises the following steps: obtaining copper powder by pretreating waste copper materials, preparing a copper dissolving reagent, introducing Cu 2+ catalyst precursor into the copper dissolving reagent, carrying out a copper dissolving reaction to obtain a copper ammonia solution, continuously introducing air after ammonia is dispersed, carrying out an ammonia evaporation reaction and ammonia absorption by heating, stopping when the solution is green and muddy, carrying out solid-liquid separation to obtain basic copper carbonate solid and a low-concentration copper ammonia solution, washing the basic copper carbonate solid with pure water, calcining again, and grinding to obtain special copper oxide. The Cu element plays a catalytic role in different forms at different stages, and the two problems of slow copper dissolving and poor crystallization are solved systematically without introducing external impurities. Through the synergistic effect of the catalytic mechanism and the accurate process parameters, the high purity, particle size control and special performance of the final copper oxide product are improved, and the special application requirements are met.

To provide an electrochromic material and a method for producing the same, which are used in a coating material that exhibits reversible color change between black and transparent, as well as a coating material and a mixed coating material containing the electrochromic material and methods for producing the same, a color-variable electrode, and an electrochromic device. [Solution] A black electrochromic material that reversibly changes color between black and transparent through an electrochemical redox reaction, comprising one or more nanoparticles selected from the group consisting of copper oxide nanoparticles that are heat-treated products of basic copper carbonate, titanium oxide nanoparticles, titanium nitride nanoparticles, nickel oxide nanoparticles, nickel hydroxide nanoparticles, zirconium oxide nanoparticles, and metallic iridium nanoparticles.

The invention relates to the field of metal catalyst synthesis, and discloses a method for continuously preparing a metal catalyst copper adipate. The method comprises the following steps: S1, processing a heterogeneous mixture of adipic acid and basic cupric carbonate into an emulsion; s2, conveying the emulsified liquid into a tubular reactor, and carrying out an acid-base neutralization reaction; and S3, after the reaction, collecting effluent, cooling to room temperature, then carrying out reduced pressure suction filtration, collecting a filter cake, washing and drying to obtain copper adipate. According to the method for continuously preparing the metal catalyst copper adipate, disclosed by the invention, the emulsified liquid is prepared by utilizing a high-speed shearing emulsifying machine, so that the problem that continuous production of a heterogeneous mixture is difficult to realize is solved; according to the method, the process is strengthened, the reaction time is shortened, the production efficiency is improved, the generation of byproducts is reduced, the product quality is stable, meanwhile, the post-treatment process of the method is simple, the generation of three wastes is reduced, the requirements of a green production process are met, and finally cost reduction and efficiency improvement of a copper adipate product can be realized.

This invention relates to a deodorant, its preparation method, and its application, belonging to the field of deodorization technology. The invention provides a deodorant preparation method, specifically involving the following steps: a mineral-based deodorizing carrier, anhydrous calcium chloride, magnesium stearate, calcium peroxide, ferrous sulfate, basic copper carbonate, zinc oxide, and mesoporous silica are orderly mixed to obtain a composite powder. This powder is then mixed with a sodium silicate aqueous solution, kneaded, pressed into shape, and cured to obtain a raw blank. The raw blank is then immersed in a composite treatment solution containing silica sol, a silane coupling agent, and nano-titanium dioxide. After removal, it is dried and heat-treated to obtain the deodorant. The deodorant prepared by this invention can be applied to kitchens, bathrooms, and shoe cabinets, exhibiting excellent deodorizing effects.

The invention belongs to the technical field of flue gas purification, and discloses a bifunctional catalyst which is simple in preparation process, excellent in low-temperature catalytic activity, N2 selectivity, sulfur resistance and water resistance and capable of removing CO and NOx at the same time, and a preparation method and application of the bifunctional catalyst. The bifunctional catalyst for simultaneously removing CO and NOx comprises microspheres formed by assembling nano-particles and a shell layer coated on the surfaces of the microspheres, the nanoparticles are mainly composed of Cu, V and O; and the shell layer is mainly made of TiO2. The preparation method of the bifunctional catalyst comprises the following steps: (1) taking basic cupric carbonate and V2O5 as raw materials, and synthesizing Cu3V2O7 (OH) 2.2 H2O microspheres through a hydrothermal method; and (2) synthesizing the bifunctional catalyst by using the Cu3V2O7 (OH) 2.2 H2O microspheres, tetrabutyl titanate and ammonia water as raw materials through a hydrothermal method.

The invention relates to the field of bronze ware, in particular to a bronze ware distressing method which comprises the following steps: S1, cleaning the surface of a bronze ware, uniformly coating the cleaned surface of the bronze ware with an etchant, and standing to obtain an oxidized bronze ware; s2, the surface of the oxidized bronze ware is washed until eluate is clear, then the whole oxidized bronze ware is soaked in a sodium bicarbonate solution for 24 h, the pH is 7.5-8, and the rusted bronze ware is obtained; s3, the rusted bronze ware is washed and dried, and the antique bronze ware is obtained; the corrosion inducing agent is at least one of silver nitrate, copper chloride and aspartic acid. According to the method, the surface of the bronze ware is eroded through the corrosion inducing agent, then the basic carbonate aerugo rust layer is formed on the erosion layer of the bronze ware through sodium bicarbonate induction, and finally the antique bronze ware is obtained through washing and drying, so that the antique effect of the surface of the bronze ware can be achieved within a short time; and uniform distribution of the antique layer on the surface of the bronze ware can be ensured.

The application provides a preparation method and application of a nitrogen-doped activated carbon composite zirconium-metal organic framework material. The zirconium-metal organic framework is compounded with the nitrogen-doped activated carbon, mixed and ground, and the mixed powder is bonded into a form by using a binder to obtain a broad-spectrum adsorption material capable of carrying multiple adsorption sites and synergistically acting on various toxic and harmful gas pollutants; then, the broad-spectrum adsorption material is impregnated and loaded with ammonium bicarbonate, basic copper carbonate, basic zinc carbonate, silver nitrate, ammonium molybdate tetrahydrate and potassium hydroxide by using ammonia water; the nitrogen-doped activated carbon composite zirconium-metal organic framework material has good protection capability for benzene, chloroethane, hydrocyanic acid, cyanogen chloride, sulfur dioxide, hydrogen sulfide and ammonia gas.

The invention relates to micro-nano silver coated copper conductive powder and a preparation method and application thereof.The preparation method comprises the steps that carbon dioxide serves as an acid-base regulator to dynamically regulate and control the precipitation and separation process of a copper precursor to obtain a basic copper carbonate carrier material, and basic copper carbonate loaded silver carbonate precipitate is obtained through cation exchange of a silver source; and carrying out chemical reduction, solid-liquid separation, washing and drying to obtain the micro-nano silver coated copper conductive powder. Compared with the prior art, the method is based on the acidity and precipitation effects of CO2, operation is easy, green and environment-friendly, and the prepared micro-nano silver-coated copper conductive powder is narrow in particle size distribution, high in conductivity, low in silver content and good in stability.

The application discloses a targeted drug for treating glioma and a preparation method and application thereof. Alkaline copper carbonate, dopamine hydrochloride and ammonia water are mixed and dissolved, then defatted cotton is added, stirring is conducted until the defatted cotton is dissolved, and copper ammonia fiber solution is obtained by reaction at room temperature; a mixed solution of soluble copper ion salt, zinc ion salt and cobalt ion salt is prepared as a metal ion acid bath solution; the copper ammonia fiber solution is slowly injected into the metal ion acid bath solution, stirring reaction is completed, and then centrifugal separation is conducted; the obtained precipitate is added into a temozolomide solution, ultrasonic treatment is conducted under ice bath, and then centrifugal separation is conducted to obtain a precipitate; the precipitate is washed and freeze-dried to obtain polydopamine modified temozolomide adsorbed copper ammonia fiber; finally, the obtained polydopamine modified temozolomide adsorbed copper ammonia fiber is added into phosphate buffer solution containing Anti-ATRX antibody for incubation, and then washing, freeze-drying and grinding are conducted to obtain the product.

The invention discloses a micro-smoke reducing agent suitable for spraying fireworks and cold light fireworks. The micro-smoke reducing agent is prepared from the following raw material components in parts by weight: 25-35 parts of plant fiber powder, 18-22 parts of carbon powder, 15-25 parts of cationic modified starch, 19-22 parts of ferrocene and 8-12 parts of basic cupric carbonate. The raw materials are mixed according to a general method, and the raw materials are respectively crushed or mixed and crushed until the granularity is not greater than 200 meshes. The safety can be effectively improved, and the production cost is reduced.

The invention relates to the technical field of industrial waste gas treatment, and particularly discloses composite desulfurization powder for industrial kiln waste gas desulfurization and a preparation method thereof. The composite desulfurization powder is prepared from the following raw materials in parts by weight: 78-85 parts of sodium bicarbonate, 10-15 parts of sodium percarbonate, 3-5 parts of adipic acid and 1-3 parts of basic cupric carbonate. Experimental results show that under the same conditions, the desulfurization efficiency of the composite desulfurization powder is improved by about 10% compared with that of single sodium bicarbonate, the sodium alkali utilization rate is improved by 30% or above, the whole-process operation cost of materials, transportation and waste residue treatment is directly reduced, and the composite desulfurization powder is particularly suitable for complex waste gas conditions with high requirements for desulfurization efficiency and large working condition fluctuation.

The invention provides a preparation method of electronic-grade copper oxide powder, and relates to the technical field of copper oxide. According to the method, the barium carbonate is adopted to precipitate the copper sulfate solution, the obtained mixed solid is dissolved by the ammonia water and then is separated into the solid and the copper ammonia complex solution, the copper ammonia complex solution is heated and decomposed into basic copper carbonate, the basic copper carbonate is calcined to obtain the copper oxide powder with high purity and high activity, and the content of metal impurities is very low.

The invention relates to the technical field of basic cupric carbonate drying devices, in particular to a basic cupric carbonate low-temperature thermal crystallization material drying integrated device. Comprising a base frame and further comprises a conveying shaft barrel rotationally installed on the base frame, a centrifugal conical disc is fixedly installed on the upper portion of the conveying shaft barrel, spraying outer holes are formed in the position, corresponding to the lower portion of the centrifugal conical disc, of the peripheral face of the conveying shaft barrel in an array mode, circulating discharging ports are formed in the upper portion of the conveying shaft barrel in an array mode, and circulating returning ports are formed in the lower portion of the conveying shaft barrel in an array mode; a first shock excitation unit for driving the material vibrating frame to periodically vibrate in a variable amplitude mode is arranged between the material vibrating frame and the material vibrating frame, a spraying shaft pipe is rotationally installed on the material vibrating frame, and spraying inner holes are formed in the periphery of the spraying shaft pipe in an array mode. The device has the beneficial effects that through the centrifugal material throwing structure of the centrifugal conical disc, the hot air gradient drying system with the inner and outer double jet holes and the reverse rotation cooperation of the spiral conveying blade and the conveying shaft barrel, the initial state that materials are fed, namely caking is broken through.

This invention discloses an ecological slow-release algaecide and its preparation method, relating to the field of water treatment technology. The algaecide comprises 30%-50% copper oxychloride, 5%-50% basic copper carbonate, 5%-50% copper hydroxide, 5%-50% copper oxalate, 8%-12% copper sulfate pentahydrate, 2%-8% calcium sulfate dihydrate, 2%-8% oxalic acid dihydrate, 9%-18% pregelatinized starch, and 1.5%-2% magnesium stearate. The preparation method includes: weighing and mixing the components; pulverizing the mixed powder, sieving, and drying in an oven; and pressing the dried powder into tablets. This invention features a simple preparation process and low raw material costs. The algaecide of this invention has stable and long-lasting release, effectively reducing the frequency of algaecide application, and ensuring that the copper ion concentration in the water does not exceed the standard, greatly reducing the risk of water pollution caused by excessive algaecide application, while also reducing the labor costs associated with long-term algaecide application.

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.

This invention relates to the field of catalysts for the synthesis of N-methylaniline, specifically to a basic copper carbonate-based composite catalyst for the N-methylation synthesis of N-methylaniline from aniline and its preparation method. Conventional copper-based catalysts struggle to achieve selectivity of over 90% for N-methylaniline during the N-methylation reaction. To address this problem, this invention provides a basic copper carbonate-based composite catalyst for the N-methylation synthesis of N-methylaniline from aniline, with the structural formula CuM(OH)x(CO3)y. In this general formula, M includes one or more of the metal elements zinc, aluminum, chromium, lanthanum, and manganese. By optimizing the composition of the metal elements in the catalyst and the pH during the co-precipitation process, a basic copper carbonate-based composite catalyst with relatively good catalytic performance was obtained. While maintaining a high yield of N-methylaniline, it can operate stably and continuously for 1000 hours without significant deactivation.

The present disclosure provides a gas-generating agent composition, a gas-generating agent, and a preparation method and the use. The gas-generating agent composition comprises the following components, in percentages by mass: 30-70% of guanidine nitrate, 20-60% of basic copper nitrate, 0-10% of basic copper carbonate, 1-10% of ammonium perchlorate and 1-15% of a slag-forming agent, wherein the slag-forming agent comprises a first component and a second component, the first component being selected from aluminum hydroxide, and the second component being selected from at least one of a zirconate and a silicate.

The utility model belongs to the technical field of copper production equipment, and particularly relates to an efficient and energy-saving reaction tower kettle for preparing high-purity basic cupric carbonate on a large scale. A reaction tower kettle for efficient and energy-saving large-scale preparation of high-purity basic cupric carbonate comprises a stripping tower and a reaction kettle, a plurality of layers of tower plates are arranged in the stripping tower, a gas outlet is formed in the top of the stripping tower, a material distribution disc is arranged below the gas outlet, a gas sensor is arranged between the material distribution disc and the gas outlet, and the gas sensor is connected with the reaction kettle. A material inlet is formed in the side surface of the material distribution disc, and an eccentric stirrer is arranged in the reaction kettle. The device is compact in structure and high in practicability, steam passes through the tower plates layer by layer through combined use of the stripping tower and the reaction kettle, ammonia-containing water vapor can be condensed into water on the tower plates and returns to the reaction kettle with heat, the heated tower plates can heat newly added ammonia water and carbon dioxide, and the heat can be fully utilized.

The application discloses a basic copper carbonate gallium composite oxide and a preparation method and application thereof, and relates to a method for preparing a basic copper carbonate gallium composite oxide by hydrothermal reaction of a mixed solution containing copper nitrate, gallium nitrate and urea. The method has the advantages of simple preparation process, good repeatability and convenience for batch synthesis of the composite oxide catalyst, and the catalyst has an ultra-wide stable potential range, the stable potential range is wide to-0.6~‑1.8V, and the CO / H2 ratio can be stably adjusted. The basic copper carbonate gallium composite oxide is prepared, CO2 is electrically reduced to prepare syngas, the syngas efficiency is above 90%, and the catalyst is expected to be widely applied in the field of electric catalysis.

The invention provides a copper-hyaluronic acid composite nanomaterial as well as a preparation method and application thereof. Metal copper ions (Cu < 2 + >) and bovine serum albumin form a precursor solution, then the precursor solution and sodium carbonate are co-precipitated to form a basic cupric carbonate precursor, hyaluronic acid is added, the hyaluronic acid is covalently modified on the surface of the nano material through an amido bond, and finally dialysis purification is performed to remove unreacted hyaluronic acid and other byproducts. The method has the characteristics of simple production process, low raw material cost, high yield, good reproducibility and the like, and low-cost large-scale production can be realized under normal conditions at room temperature. The preparation method has remarkable advantages in preparation of solid tumor treatment drugs, and combines the antitumor activity and immune activation of copper ions and the targeting delivery characteristic of hyaluronic acid to form a multi-mechanism synergistic treatment strategy.

The invention relates to the technical field of preparation of active copper oxide, in particular to a process for preparing active copper oxide by taking crude copper sulfate as a raw material, which comprises the following steps: reacting an aqueous solution of crude copper sulfate with a certain amount of H2O2, and then adjusting the pH value for the first time by using a NaOH solution; adding a ferric sulfate solution into the obtained solution, heating and stirring, and then adjusting the pH value for the second time by using a NaOH solution, so that impurity ions form precipitates, thereby obtaining a refined copper sulfate solution; adding a certain amount of sodium carbonate precipitant into the refined copper sulfate solution, and reacting to generate basic cupric carbonate precipitate; washing and drying the basic cupric carbonate precipitate for multiple times, and calcining the basic cupric carbonate precipitate in a muffle furnace to generate copper oxide; the crude copper sulfate is used as the raw material to prepare the active copper oxide, the crude copper sulfate is a relatively cheap industrial raw material and is wide in source, and when the crude copper sulfate is used as the raw material for preparing the active copper oxide, the production cost can be reduced, and the economic benefit can be improved.

The invention relates to the technical field of waste copper recovery, and discloses a process for producing special copper oxide by recovering a waste copper material, which comprises the following steps: pretreating the waste copper material to obtain copper powder, preparing a copper dissolving reagent, introducing a Cu < 2 + >-containing catalyst precursor into the copper dissolving reagent, putting the copper powder into the copper dissolving reagent, and carrying out copper dissolving reaction to obtain a copper ammonia solution; firstly dispersing ammonia, then continuously introducing air, raising the temperature, carrying out an ammonia distillation reaction and absorbing ammonia, and stopping when the solution is in a green slurry state; and carrying out solid-liquid separation to obtain basic cupric carbonate solids and a low-concentration copper ammonia solution, washing the basic cupric carbonate solids with pure water, and calcining and grinding to obtain the special copper oxide. According to the invention, the Cu element plays a catalytic role in different forms at different stages, the two problems of slow copper dissolution and poor crystallization are systematically solved, and no foreign impurities are introduced. Through the synergistic effect of a catalytic mechanism and precisely controlled process parameters, the high purity, particle size control and special performance of a final copper oxide product are improved, and special application requirements are met.