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2022
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Full of dry goods, sharing the role of indirect zinc oxide
Indirect zinc oxide is a widely used product, which can be produced and prepared in chemical and metallurgical industries. The difference is that chemical plants use commercial zinc as the main raw material to produce zinc oxide. In the actual production process, most enterprises produce zinc oxide by indirect method. With the continuous updating, development and improvement of zinc oxide production technology, the application of zinc oxide is more and more extensive, the output is increasing, and the production technology is constantly updated and upgraded. The indirect zinc oxide industry has broad prospects.
Indirect zinc oxide is the oxide of zinc, commonly known as zinc white. The shape of zinc oxide is white solid, and its chemical form is ZnO. Insoluble in water, it may have long-term adverse effects on the aquatic environment and great harm to aquatic organisms. Therefore, zinc oxide and containers contacting zinc oxide are strictly stored in hazardous wastes.
Normally, the main forms of zinc are white powder and sphalerite. Zinc ore is usually yellow and red, because marmatite contains a small amount of manganese. When the temperature rises, zinc oxide crystals decompose to produce zinc vapor and oxygen. When the zinc oxide crystal is heated by physical heating, a small amount of oxygen atoms will overflow from the crystal, causing the substance to be yellow, and the crystal will return to white state after cooling. If you want to reduce zinc in zinc oxide, you can react with elemental carbon at high temperature. Zinc oxide can also react with strong base to form soluble zincate, such as sodium hydroxide.
Indirect zinc oxide can also produce carboxylates, such as oleate and stearate, but zinc oxide reacts slowly in fatty acids. In industrial production, zinc oxide is used to remove hydrogen sulfide from mixed gas. When contacting with linseed oil, magnesium powder, aluminum powder and chlorinated rubber, fire, explosion and other accidents may occur, because they react violently through contact. Zinc oxide can also be mixed with water to generate hydrogen peroxide under ultraviolet light.
Indirect zinc oxide is a chemical additive commonly used in metallurgy and chemical industry. The industrial extraction method is obtained by roasting zinc and sphalerite. Zinc oxide often exists in sphalerite in nature. Zinc oxide is also a semiconductor material, which is usually used in liquid crystal displays, thin film transistors, and even in hollow glass, light-emitting diodes and other products. At the same time, zinc oxide is also used in the production of batteries, cement products, plastics, ceramics, paints, sealants, adhesives and other products.
Indirect zinc oxide crystals have the following different crystal structures: under natural conditions, there is a single hexagonal wurtzite structure; At room temperature, when the pressure reaches the volume reduction of zinc oxide, zinc oxide changes into tetragonal salt mineral structure, and zinc oxide with sphalerite structure can only exist stably on the cubic phase matrix. Generally, the oxygen atom near each zinc atom is bound into a tetrahedron structure. The zinc atoms are arranged in a hexagonal close packed manner. The tetrahedron surface is parallel to the positive electrode surface and the negative electrode surface, and the top angle of the tetrahedron.
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Luoyang Danke Zinc Industry Co., Ltd.
Add：Huayang Industrial Cluster, Mengjin County, Luoyang, Henan
Tel：+86-0379-67862286
Mobile：+86-13525964944
+86-15837919773
Email：lydkxy@163.com