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Title:
METHOD FOR COMPREHENSIVE RECOVERY OF SILVER-CONTAINING LEAD SLAG
Document Type and Number:
WIPO Patent Application WO/2018/082516
Kind Code:
A1
Abstract:
A method for comprehensive recovery of silver-containing lead slag, mainly comprising the following steps: impurity removal, deleading, reduction and filtration, lead dissolving, hot filtration, quenching filtration, cleaning, thermal decomposition, and the like. Silver is recovered in the form of silver powder, and lead is recovered in the form of red lead, yellow lead and lead chloride respectively.

Inventors:
PAN, De'an (No. 100 Pingleyuan, Chaoyang District, Beijing 4, 100124, CN)
WU, Yufeng (No. 100 Pingleyuan, Chaoyang District, Beijing 4, 100124, CN)
LI, Liquan (No. 100 Pingleyuan, Chaoyang District, Beijing 4, 100124, CN)
Application Number:
CN2017/108239
Publication Date:
May 11, 2018
Filing Date:
October 30, 2017
Export Citation:
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Assignee:
BEIJING UNIVERSITY OF TECHNOLOGY (No. 100 Pingleyuan, Chaoyang District, Beijing 4, 100124, CN)
International Classes:
C22B7/04; C22B11/00; C22B13/00
Attorney, Agent or Firm:
BEIJING SIHAI TIANDA INTELLECTUAL PROPERTY AGENCY LTD. (Room 302, The East Wing of Old Library Beijing University of Technology, NO.100 Pingleyua, Chao Yang District Beijing 4, 100124, CN)
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