10 results about "BASIC CUPRIC CARBONATE" patented technology

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 discloses an analysis method for determining the content of water-soluble chlorine in basic cupric carbonate. Compared with the prior art, the method has the advantages that by optimizing sample treatment and determination conditions, the determination accuracy and precision are remarkably improved, and meanwhile, the analysis time is shortened. Specifically, a set of sample pretreatment process is customized according to different contents of water-soluble chlorine in a sample, and rapid and accurate chlorine content determination is realized through an improved potentiometric titration technology. According to the method, the detection efficiency is improved, and the reliability of the result is ensured by reducing personal errors. In addition, the analysis speed of the method is 1.5 times higher than that of a traditional method, the accuracy is improved by 30%, and the precision error range is reduced to 5%.

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.

The invention relates to the field of spectral absorption analysis, and provides an analysis method for determining mercury in basic cupric carbonate through hydrochloric acid dissolution, which comprises the following steps: dissolving basic cupric carbonate at low temperature by using hydrochloric acid without reducibility, steaming to 2-3mL, oxidizing mercury in a sample into high-valence mercury by using potassium permanganate, and determining the mercury content in the sample by using hydrochloric acid without reducibility. And completely reducing mercury in the sample into mercury vapor by using stannous chloride, and measuring the mercury content on a cold atomic absorption spectrometer. At present, a standard analysis method for mercury elements in materials such as basic cupric carbonate is lacked in China. Mercury is a harmful substance in the nature, and it is particularly important to analyze whether mercury can be accurately analyzed. The method is improved on the basis of a conventional analysis processing method, adopts single hydrochloric acid to dissolve the sample, and has the characteristics of high measurement precision, wide range, high accuracy, strong practicability and the like.

The present invention relates to a method for preparing a polyether amine catalyst, and polyether amine. A polyether amine catalyst is a supported metal catalyst; γ-Al2O3 is used as a carrier; basic cupric carbonate, basic nickel carbonate and basic cobalt carbonate are used as precursors of supported metals; and the polyether amine catalyst is prepared by performing twice adsorption roasting and once reduction by means of an equivalent-volumetic impregnation method. Easier decomposition is achieved by using basic carbonate, and only water and carbon dioxide are generated, such that processes and costs for treating waste gases can be saved. By using the polyether amine catalyst to prepare polyether amine, a conversion rate and primary amine selectivity can be improved, and the color of products can be reduced. Therefore, the obtained polyether amine can have higher activity and wider application.

The invention belongs to the technical field of tungsten-copper alloys, and particularly relates to a high-thermal-conductivity tungsten-copper alloy and a preparation method thereof.The preparation method comprises the following steps that S1, ammonium paratungstate, copper oxide, copper tungstate, basic cupric carbonate, a silver-containing compound, an organic coordination agent, rare earth oxide and copper powder are obtained to serve as raw materials; s2, the raw materials except the copper powder are subjected to ball milling to obtain composite sol, the composite sol is dried to obtain precursor powder, and the precursor powder is subjected to heat treatment to obtain composite powder; and S3, the composite powder and the copper powder are laid according to the structure of bottom layer copper powder-composite powder-top layer copper powder, a composite pressed blank is obtained through pressing, infiltration sintering is conducted on the composite pressed blank, and the tungsten-copper alloy is obtained. By forming the three-stage core-shell structure of tungsten core-copper silver solid solution shell-rare earth transition layer, the comprehensive performance is superior to that of an existing silver nitrate / silver powder system, no harmful gas is discharged, and the green manufacturing requirement is met.

The invention provides a preparation method of a copper oxide material rich in oxygen vacancies, the copper oxide material and application, and belongs to the technical field of material preparation. According to the preparation method of the copper oxide material rich in oxygen vacancies provided by the invention, a solution combustion method based on basic cupric carbonate and an external oxidant is adopted, and the accurately controlled protective atmosphere and calcination conditions are combined, so that the copper oxide material rich in oxygen vacancies with a specific electronic structure can be simply and efficiently constructed; the oxygen vacancy content and the specific surface area of the copper oxide material are remarkably improved, so that a large number of oxygen vacancies exist in the material and can be in full contact with oxygen molecules. Therefore, the copper oxide material prepared by the method has excellent oxygen molecule activation performance, oxygen molecules in the environment can be continuously activated through oxygen vacancies even under the dark condition, sufficient reactive oxygen species (ROS) can be generated, and efficient antibiosis in dual modes of illumination and darkness can be realized.

The invention relates to the technical field of basic cupric carbonate drying, and discloses low-temperature drying equipment for preparing large-particle high-specific-gravity basic cupric carbonate through a wet method.The low-temperature drying equipment comprises a drying device, the top of the drying device is communicated with a feeding frame, a discharging hole is formed in the lower surface of the drying device, and the inner wall of the drying device is fixedly connected with a slope frame; a tiling part is arranged below the inclined plane frame; and the tiling part comprises two bottom plates, the ends, away from each other, of the two bottom plates are fixedly connected with a power device and a rotating rod correspondingly, and the end, away from the bottom plate, of the rotating rod is rotationally connected with the inner wall of the drying device. When a screw rod rotates, a moving frame is pushed to slide on the surface of a limiting plate, when the moving frame moves, a center rod is pushed to move through a bent plate, when the center rod moves, an inclined plate is pushed to move at the bottom of the inner wall of a drying frame, and when the inclined plate moves, basic cupric carbonate is pushed to move in the drying frame; and non-uniform drying caused by accumulation of basic cupric carbonate in the drying rack is avoided.

The invention discloses a preparation method of amorphous basic cupric carbonate. The method comprises the following steps: (1) respectively preparing a soluble copper salt solution and a precipitant solution; (2) adding bottom water and a stabilizer into a reactor, adding the soluble copper salt solution and the precipitant solution obtained in the step (1) into the reactor in a parallel flow manner, and reacting while stirring to obtain slurry; the stabilizer is a solution containing isopropylamine chain dodecyl benzene sulfonate; (3) carrying out suction filtration and first washing on the slurry obtained in the step (2); (4) adding the material obtained in the step (3) into a solvent, and freezing; and (5) sequentially carrying out second washing, third washing and fourth washing on the material obtained in the step (4), and carrying out freeze drying on the washed material to obtain the amorphous basic cupric carbonate. According to the method, crystal structure transformation of amorphous basic cupric carbonate in the preparation process can be avoided, and the method is simple and easy to operate and does not need expensive instruments.

The invention discloses a preparation method and application of a copper tannate bactericide. The method comprises the following steps: dissolving refined basic cupric carbonate in a hot concentrated sodium bicarbonate solution, slowly dropwise adding a tannic acid solution into the basic cupric carbonate solution to carry out liquid-liquid reaction, and carrying out acid-base neutralization after the tannic acid solution is added because the sodium bicarbonate solution of the basic cupric carbonate is alkaline; a microenvironment with the pH value of 4-5 required by a coordination reaction is formed, and meanwhile, due to excessive copper ions, sufficient coordination combination of the copper ions and tannic acid is promoted, so that the product yield is increased. The whole preparation process is carried out under mild conditions, does not involve highly toxic and high-pollution substances, and is environment-friendly and high in safety. The prepared copper tannate can be applied to prevention and treatment of pathogenic microorganisms in agriculture, has multiple effects of resisting bacteria and viruses, promoting plant growth, enhancing crop stress resistance and the like, can remarkably improve the yield and quality of crops, does not generate drug resistance, and can solve the harm of the pathogenic microorganisms in a short time.