Title:
NEW METHOD FOR EXTRACTING METAL NICKEL FROM LATERITE NICKEL ORE LEACHING LIQUOR
Document Type and Number:
WIPO Patent Application WO/2021/147573
Kind Code:
A1
Abstract:
Disclosed is a method for extracting metal nickel from a laterite nickel ore leaching liquor. The whole technological process of the method comprises the following steps: enabling laterite nickel ore leaching liquor to enter a resin tower from a raw material tank via a feed pipe, wherein nickel ions in the laterite nickel ore leaching liquor are adsorbed onto and enriched with resin; and after the resin is saturated through adsorption, enabling a leachate to enter the resin tower through a leachate-feeding pipe, and then washing the laterite nickel ore leaching liquor with nickel that is not adsorbed back into the raw material tank to wait for the next adsorption, etc. Compared with a conventional static bed system, the method has the advantages that the utilization rate of the resin can be improved by 20% or more, the use efficiency of the resin can be increased by 40% or more, and the production cost can be reduced by 30-50%. In addition, due to the fact that a channel rotation switching valve system uses full sealing and the interval operation of the extraction liquid adsorption and the water ejection by means of a material, the water consumption and wastewater drainage throughout the whole operation process are reduced, the production reliability is improved, and year-round uninterrupted operation can thus be achieved.
Inventors:
YU JIA (CN)
GUO FUMIN (CN)
LI SUIDANG (CN)
LIU QIONG (CN)
KOU XIAOKANG (CN)
GUO FUMIN (CN)
LI SUIDANG (CN)
LIU QIONG (CN)
KOU XIAOKANG (CN)
Application Number:
PCT/CN2020/136835
Publication Date:
July 29, 2021
Filing Date:
December 16, 2020
Export Citation:
Assignee:
SUNRESIN NEW MAT CO LTD (CN)
International Classes:
C22B3/24; C22B23/00
Foreign References:
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Attorney, Agent or Firm:
SUNSHINE INTELLECTUAL PROPERTY INTERNATIONAL CO., LTD. (CN)
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