Method of extracting zinc from zine slag

Application Number: 00107360
Application Date: 2000.05.11
Publication Number: 1323909
Publication Date: 2001.11.28
Priority Information:
International: C22B7/04;C22B19/04
Applicant(s) Name: Central-South China Polytechnic Univ.
Address:
Inventor(s) Name: Qiu Keqiang;Chen Qiyuan
Patent Agency Code: 43200
Patent Agent: yuan xiang
Abstract A recovery process of zinc from the zinc residues puts the zinc residue slags into the vacuum distillation furnace as keeping the vacuum degree of the furnace at the range of 26.66-13.33 pa, the temperature of the furnace at 650-1000 deg.C, distillation period time of 2.5-8 hours in order to let zinc containing in the material put into the furnace and let the zinc revert out to be condensed to the condensor after their evaporation. The quality of the zinc product obtained from this recovery process can reach A grade standard by laboratary's testing.