Proses Ekstraksi Seng Oksida Dari Seng Dross Menggunakan Metode Hidrometalurgi Sistim Terbuka

Abstract

Zinc oxide is one of the chemical that widely used in public, such as for cosmetic industry, health industry, rubber industry and agricultural industry. For now, to fulfill the needs of zinc oxide in Indonesia we still have to import it from other countries. To substitute the import of zinc oxide, we need to find potential material that can be used to make zinc oxide, one of it is zinc dross which is the byproduct from hot-dip galvanizing industry. The purpose of this research is to get the condition of zinc dross extraction process with glacial acetic acid, so it will form zinc oxide. The extraction process will need hydrometallurgy method with time process variable (30 minutes, 60 minutes, 90 minutes and 120 minutes), temperature process ( 150 oC, 170 oC dan 190 oC) and glacial acetic acid concentration (20 %, 40 %, and 60 %). The result for the research of extraction process of zinc oxide by using zinc dross shows that the best condition is 90 minutes for the time, 150oC for the temperature and 60 % for the concentration of glacial acetic acid, it’s also resulted in 62,5 % of it and the level of concentration of zinc in it is by 70,23 %. Based on XRD analysis, zinc oxide crystal that was form is equal to the standard zinc oxide. So, Zinc dross is a potential material to make zinc oxide and also it can be used as import substitution material.