Industrial preparation method and application of copper oxide CuO powder

Overview of copper oxide CuO powder

Copper oxide is an inorganic substance with the chemical formula CuO, which is a black oxide of copper, slightly amphiphilic and slightly hygroscopic. It is insoluble in water and ethanol, and easily soluble in acid. It is stable to heat and decomposes oxygen at high temperature. Copper oxide is mainly used to make rayon, ceramics, glazes and enamels, batteries, petroleum desulfurizers, pesticides, and also for hydrogen production, catalysts, green glass, etc.

Industrial production method of copper oxide CuO powder

1. Copper powder oxidation method

Using copper ash and copper slag as raw materials, it is roasted and heated with coal gas for preliminary oxidation to remove moisture and organic impurities in the raw materials. The generated primary oxide is naturally cooled, and after pulverization, it undergoes secondary oxidation to obtain crude copper oxide. The crude copper oxide is added to the reactor pre-installed with 1:1 sulfuric acid, and the liquid is reacted with heating and stirring until the relative density of the liquid is doubled. The pH value of 2-3 is the end of the reaction, and the copper sulfate solution is generated. After clarification, under heating and stirring conditions, iron shavings are added to replace the copper, and then washed with hot water until there is no sulfate and iron. After centrifugal separation, drying, oxidizing and roasting at 450°C for 8 hours, cooling, crushing to 100 mesh, and then oxidizing in an oxidizing furnace to obtain copper oxide powder.

2. Copper nitrate thermal decomposition method

The electrolytic copper is dissolved in dilute nitric acid and evaporated to dryness on a water bath, and then heated in a desiccator from 90°C to 120°C very slowly. When a soft basic salt is formed, it is boiled in water, filtered and dried; then it is slowly heated to 400°C to remove most of the nitric acid; then crushed and heated to 850°C for 1 hour to decompose into oxidation copper. In order to make the reaction more complete, the product can be pulverized again, heated at about 700°C for 1 hour, and then placed in a desiccator to cool.

3. Copper carbonate thermal decomposition method

Put copper powder or copper wire in a fume hood with as little 6mol/L nitric acid as possible to completely dissolve it. If the solution is opaque, it needs to be filtered. In addition, the sodium carbonate solution is mixed with the copper nitrate solution and boiled to generate black basic salt precipitation. When the solid settles, discard the supernatant liquid, fully wash, filter, and dry by decantation. Put it on the evaporating dish and heat it with a small fire with sufficient stirring to decompose it into copper oxide.

4. Nitration of copper wire or copper powder

Dissolve the copper wire or copper powder in 6mol/L nitric acid to keep the copper in excess, heat the solution to a pH value of 3-4 to remove the iron hydroxide precipitation, then mix it with 10% (mass) sodium carbonate solution, and heat to boil. Alkaline salt is precipitated, discard the supernatant liquid, wash thoroughly with water, filter and dry. The dried basic copper carbonate is heated and decomposed into black copper oxide powder with sufficient stirring in a small fire. When no more carbon dioxide is produced, the decomposition is complete.

5. Conductive water dissolution method

Dissolve high-purity copper nitrate with conductive water, filter, add excess high-purity NH3·H2O to the clear liquid, filter out impurities and precipitate, and use high-purity nitric acid to neutralize the filtrate to precipitate copper hydroxide. Filter, wash once with conductive water, add nitric acid to dissolve the precipitate, add high-purity ammonium carbonate to precipitate copper carbonate, then wash, spin dry, dry in an oven at 200 ℃, burn at 450-550 ℃ for 3-4 hours, get Spectral pure copper oxide.

Application of copper oxide CuO powder

1. It can be used as an organic synthesis catalyst, analytical reagent (for nitrogen determination), oxidant, catalyst and petroleum desulfurizer, and it can also be used to determine carbon in organic compounds.

2. Used as a coloring agent in glass, enamel, and ceramic industries, an anti-Zou agent in paint, and a polishing agent in optical glass. Used in the manufacture of dyes, organic catalyst carriers and copper compounds. It is also used in the rayon manufacturing industry and as a desulfurizer for grease. Used as a raw material for the manufacture of other copper salts, as well as a raw material for making artificial gems.

3. Uses of Nano Copper Oxide

(1) It is widely used as an important inorganic material in the fields of catalysis, superconductivity and ceramics.

(2) Used as catalyst and catalyst carrier and electrode active material.

(3) Used as a coloring agent for glass and porcelain, a polishing agent for optical glass, a catalyst for organic synthesis, a desulfurizing agent for oils, and a hydrogenating agent.

(4) Manufacturing artificial gems and other copper oxides.

(5) Used in the manufacture of rayon, gas analysis and determination of organic compounds, etc.

(6) It can also be used as a burning rate catalyst for rocket propellants. Nano copper oxide powder has better catalytic activity and selectivity than large-size copper oxide powder and other

Copper oxide CuO powder price

The price of copper oxide  CuO powder will vary with random factors such as production cost of copper oxide CuO powder, transportation costs, international situation, market supply and demand for copper oxide CuO powder. Tanki New Materials Co., Ltd. aims to help various industries and chemical wholesalers find quality products. Provide high-quality, low-cost nanomaterials and chemicals by providing a full set of customized services. If you are looking for copper oxide CuO powder, please feel free to send an inquiry to get the latest price of copper oxide CuO powder.

Copper oxide CuO powder supplier

As a global copper oxide CuO powder supplier, Tanki New Materials Co., Ltd. has extensive experience in the performance, application and cost-effective manufacturing of advanced engineering materials. The company has successfully developed a series of powder materials (titanium oxide, silicon oxide, titanium oxide, etc.), high-purity target materials, functional ceramics and structural devices, and provides OEM services.