Introduction to Zinc Oxide Production Methods

2021-07-02

Today, the editor of Shandong Xingyuan Zinc Industry Technology Co., Ltd. will mainly share with you the production methods of zinc oxide. Interested users, let's take a look! The production methods of zinc oxide are mainly divided into two categories: wet method and dry method. The wet method uses acid, alkali or ammonium carbonate solution, etc., to extract various zinc oxide ores, zinc-containing fumes and other zinc-containing substances. The dry method is divided into two types: direct method (American method) and indirect method (French method).

　　Shandong Xingyuan Zinc Industry Technology Co., Ltd. is a powerful professional zinc oxide manufacturer in Shandong Province, with more than 30 years Zinc oxide of production experience. It is one of the professional zinc oxide and zinc powder production bases in North China. The company's main products include: rubber-grade zinc oxide, reagent zinc oxide, zinc oxide for phosphating liquid, indirect zinc oxide, zinc powder, medical-grade zinc powder, electronic zinc oxide, medical-grade nitrile zinc oxide, nano zinc oxide, etc. Xingyuan Zinc Industry has excellent equipment, advanced production technology, complete testing methods, stable product quality, an indirect zinc oxide output of 30,000 tons, and zinc powder output of 8,000 tons. Today, the editor of Shandong Xingyuan Zinc Industry Technology Co., Ltd. will mainly share the production methods of zinc oxide with you. Interested users, let's take a look!

　　The production methods of zinc oxide are mainly divided into two categories: wet method and dry method.


Zinc oxide


　　 I. Wet method of zinc oxide production

　　The wet method uses acid, alkali, or ammonium carbonate solutions to extract various zinc oxide ores, zinc-containing fumes, and other zinc-containing substances. Impurities are removed from the clean liquid, basic zinc carbonate is precipitated, dried and calcined to obtain finished zinc oxide. Zinc oxide produced by the wet method is also called active zinc oxide. The former Soviet Union, Germany, and Japan all have production. In China, Tianjin, Shanghai, Sichuan, Guizhou and other provinces and cities have production, but the output is relatively small, and an industrial scale has not yet been formed.

　　 II. Dry method of zinc oxide production

　　The dry method is divided into two types: direct method (American method) and indirect method (French method).

　　The direct method boils zinc sulfide concentrate, adds a carbonaceous reducing agent to form globules (in some cases, no globules are formed), and then adds it to a Wetherill furnace. At high temperatures, zinc is reduced and immediately oxidized by carbon dioxide in the furnace gas and oxygen in the introduced air. After cooling, it enters the baghouse to obtain finished zinc oxide. This method can also be used to process low-grade zinc oxide ores or various zinc-containing residues, such as flat-can zinc slag and vertical-can zinc slag, to produce external zinc oxide.

　　The indirect method melts zinc ingots and adds them to an evaporation furnace. At high temperatures, zinc is evaporated, and the zinc is introduced into an oxidation furnace (chamber) for oxidation. After cooling, it enters the baghouse to obtain finished zinc oxide.

　　The indirect method of zinc oxide production is widely used. In China, the annual output of indirect zinc oxide accounts for Zinc oxide more than 70% of the total. Due to different production equipment, the indirect method can be divided into methods such as trough furnaces, crucible furnaces, distillation furnaces, and reverberatory furnaces. The latter three production methods are commonly used.

关键词:

上一条:

What is nano zinc oxide, and what are the uses of zinc oxide?

下一条:

Zinc oxide leak, how to deal with it?