Title:
METHOD FOR CONCENTRATING IRON BY COMPREHENSIVELY UTILIZING STEELMAKING DUST
Document Type and Number:
WIPO Patent Application WO/2020/107670
Kind Code:
A1
Abstract:
A method for concentrating iron by comprehensively utilizing steelmaking dust: steelmaking dust is mixed with a reducing agent, an additive and water, is pressed into balls which are dried and then baked in vacuum, and a volatile substance and solid residue are collected. The volatile substance is elemental zinc in the gas phase, which is fed into a condensation collector and then condensed into a solid; the solid residue is broken and ball-milled, then pickled to remove impurities in a residual iron phase to obtain iron concentrate. Processing parameters are controlled, while the recovery rates of iron and zinc are increased.
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Inventors:
XU BENJUN (CN)
HUANG RUN (CN)
HUANG CAIJUAN (CN)
WU QINGHUI (CN)
LV XIAODONG (CN)
WU QINZHI (CN)
HUANG RUN (CN)
HUANG CAIJUAN (CN)
WU QINGHUI (CN)
LV XIAODONG (CN)
WU QINZHI (CN)
Application Number:
PCT/CN2019/071272
Publication Date:
June 04, 2020
Filing Date:
January 11, 2019
Export Citation:
Assignee:
UNIV GUIZHOU (CN)
International Classes:
C22B19/30; C22B1/02; C22B1/248; C22B5/02; C22B5/10; C22B7/02; C22B19/04
Foreign References:
| CN1147021A | 1997-04-09 | |||
| JP2002194452A | 2002-07-10 | |||
| JP2012201946A | 2012-10-22 | |||
| CN105838876A | 2016-08-10 | |||
| CN101457269A | 2009-06-17 | |||
| CN102510906A | 2012-06-20 |
Attorney, Agent or Firm:
GUIYANG RUITENG INTELLECTUAL PROPERTY AGENCY CO, LTD. (CN)
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