Zinc oxide is produced by melting and vaporizing zinc metal. On contact with the air, the zinc vapour combines with oxygen to from the zinc oxide.
Zinc oxide is used in the manufacture of Paint, Rubber, Ceramics, Chemicals, Floor Tiles, Matches, Dental Cements, Soaps and Textiles and as a Micronutrient for animal and Plant Growth.
Zinc produces various grade of zinc oxide including Pharmaceutical, Paint, Rubber, Palletized, PA Coated, Feed Grade, Fertilizer/Agricultrual and Submicronic grades.
Leaching zinc in sulphuric acid produces zinc sulphate. Once this process has been completed, the solution is purified to remove excess heavy metals and impurities. The zinc sulphate is then either stored as a solution for resale or processed by spray drying into mono hydrate powder or Hepta hydrate crystal, depending on the required zinc content or level of water content.
Zinc sulphate can be used as a zinc salt in the preparation of inorganic zinc salts. In agriculture, it is used as a trace element supplement where soil deficiencies for zinc exist. It is similarly used in the animal feed industry to provide trace elements for animal nutrition. It can also be in the preservation of wood and animal hides. In mining applications, it is used for froth flotation of minerals. Zinc sulphate is also used for zinc plating.
Zinc sulphate is supplied in three basic forms:
Zinc Alloys I used for pressure die casting, hot chamber casting, spin casting and gravity casting or as an additive in continuous galvanizing.
Zinchem uses a unique designed Zinc Dust plant to product a range of zinc dust with the highest purity and a finely, uniformly controlled particle size. The range complies with ASTM D520 standard. The Zinc Dust is suitable for both organic and inorganic primers. The complete range ensures that the different dry film thickness for a range of zinc primers can be attained.