Microbe leaching-out method of valuable metals from deep-sea polymetal nodule

Application Number: 00102747
Application Date: 2000.02.22
Publication Number: 1310239
Publication Date: 2001.08.29
Priority Information:
International: C22B3/18
Applicant(s) Name: Inst. of Chemical Metallurgy, Academia Sinica
Inventor(s) Name: Li Haoran;Feng Yali;Ou Yangfan
Patent Agency Code: 31002
Patent Agent: gao cunxiu
Abstract The microbe leaching-out method uses the strain of ferrous oxide thiobacillus, sulfur oxide thiobacillus or their mixture; Leathen culture medium and textile dye sewage culture medium; pyrite ferrous sulfate or sulfur element as reductant; and mycetophilous pyrite lixiviant for pH regulation. The polymetal nodule without being dried and ground is leached out directly with the acclimated bacterial at normal temperature and acid condition. The sludge after leaching out is used as microbe fixing carrier for sewage treatment. The said method is simple, low in cost and favorable to environmental protection.