... equipment in China. The main products include mineral-processing equipment such as crusher, ball mill, magnetic separator, flotation machine, rotary kiln ... Europe, Africa, Latin America etc.Rotary Kiln is well known being as key-equipment for treatment of Zn bearing residues like ... EAF dust, low grade zinc ore etc. The rotary kiln process for ZnO Production from Zn-bearing materials will includes 1 ...