Manufacturing Process

Of all the different types of Zinc Oxide, we have been involved in the manufacture of white seal Zinc Oxide using French Process or Indirect Process. In this process, the starting point is metallic zinc which may be virgin,secondary (recovered), galvanisers dross. The metal is volatilized from retorts and the vapors are oxidized to finely divided zinc oxide. By means of different starting materials and different settings, various grades of zinc oxide can be manufactured. This process is the most widely used in the world for the manufacture of White Seal grade Zinc Oxide.