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Title:
METHOD FOR LEACHING LOW-GRADE LEAD-ZINC OXIDE ORES BY MEANS OF ELECTROOXIDATION, AND LEACHING DEVICE THEREOF
Document Type and Number:
WIPO Patent Application WO/2017/031949
Kind Code:
A1
Abstract:
A method for leaching low-grade lead-zinc oxide ores by means of electrooxidation comprises the following steps: A, pulping: carrying out crushing and ball milling on the low-grade lead-zinc oxide ores, and adding water to mix the ores to make a pulp; B, leaching: after the pulp is fed into an electrolytic bath, adding alkali liquor and an activating agent to the electrolytic bath to form a solid-liquid mixture, and carrying out leaching at a normal temperature under a normal pressure, so as to obtain leached liquor and spongy lead; C, carrying separation and extraction on the leached liquor to obtain zinc powder, carrying out regeneration treatment on filter liquor, and then returning the filter liquor to the electrolytic bath to be recycled; D recycling the sponge lead; and E, treating waste water and waste residues. The electrolytic bath comprises a cathode region (3), an anode region (4), a stirrer (5), a cathode plate (8) and an anode plate (7).

Inventors:
YUAN QI (CN)
LIAO YINONG (CN)
Application Number:
CN2016/072471
Publication Date:
March 02, 2017
Filing Date:
January 28, 2016
Export Citation:
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Assignee:
SICHUAN HUAFUYU SCIENCE AND TECH CO LTD (CN)
International Classes:
C22B3/12; C22B19/20; C25C1/18
Foreign References:
CN105039691A2015-11-11
CN101012514A2007-08-08
CN204369999U2015-06-03
CN104532295A2015-04-22
US4606765A1986-08-19
Attorney, Agent or Firm:
SHENZHEN HEDAOYINGLIAN PATENT FILM (GENERAL PARTNERSHIP) (CN)
深圳市合道英联专利事务所(普通合伙) (CN)
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