A little about zinc oxide
Zinc oxide is an inorganic, synthetically obtained pigment that is formed mainly by oxidation or sublimation of metallic zinc. This powder is white (it is colorless at room temperature), becoming yellow under the influence of temperature. When 1800 degrees are reached, it sublimates, that is, the transition from a solid state to a gaseous state.
Zinc belila (another name for this chemical) have a huge field of application. So zinc oxide is required in enterprises producing combined feed, it is added to premixes. Zinc belila also uses pharmaceuticals. In this area, belila are called «Zinc Paste.» For example, Teimurov ointment is made on their basis. In these industries, production is controlled by FAMI-QS and GMP.
According to statistics, humanity annually consumes about 11 million tons of Zn, of which 8% is just zinc oxide. Of the entire zinc produced in the world, 27 — 29% is the processing of scrap, as well as waste generated during zinc production. Europe contributed to the protection of the environment, and thanks to the diligent processing of waste into zinc oxide, it reduced the figure to 1%.
Each manufacturer produces white with a different composition, physicochemical characteristics and particle size. The international market sells 4 brands of zinc oxide:
- Pharma. This brand is used exclusively in the medical and electronic fields.
- Red Seal. Well established in the production of tires.
- Neige. It is used in the manufacture of various high-quality rubber products, ceramic products, food additives and chem. drugs. In this brand, compared to Pharma, the percentage of components such as cadmium and lead is slightly higher.
- Green Seal. Belila of this brand is purchased for the production of RTI, chemical and glass production, where finished products or products of medium quality are obtained.
The percentage of zinc oxide consumption in the cosmetic area is 65%, and Neige and Pharma brands are used, since high quality whitewash is required. For the production of ceramics, Neige 5% and Red Seal 90% are used. In the manufacture of RTI and tires, in addition to these, Pharma is also used.
It is worth noting that the production of oxide in relation to zinc is capricious. That is why before introducing whitewash from a new manufacturer or a new batch, it is necessary to conduct a test kneading in order to identify whether the substance is suitable or not. To do this, the vendor usually sends free samples from the new batch in stock to the sample.
The largest percentage of zinc whitefish consumption comes from the rubber and tire industry. The fact is that they are indispensable for the vulcanization of rubber, where they play the role of an activator. However, manufacturers in this area have reduced the use of this component to a ratio of ZnO to rubber of 3:100, respectively.
Recently, the copy paper production segment disappeared from the market, which consumed especially dispersed whitefish. But it is not necessary to consider that the market seeks to abandon the use of such an important component. In the European market, the consumption of zinc whitefish is 320−350 tons. tons/year. This indicator is influenced only by the number of RTI consumed by humanity, as well as the supply of whitewash from China.
As for the Russian Federation, here the possibilities of zinc oxide consumption (the BTs0 brand is often used) are limited only by the high cost of zinc and the lack of medium-price category raw materials.