Title:
METHOD FOR SEPARATING AND PURIFYING HIGH-ANTIMONY CRUDE TIN
Document Type and Number:
WIPO Patent Application WO/2023/005810
Kind Code:
A1
Abstract:
The present invention relates to the technical field of non-ferrous metal pyrometallurgy, and specifically relates to a method for separating and purifying high-antimony crude tin. According to the present invention, vacuum gasification treatment is performed on the high-antimony crude tin, volatile impurity elements in the crude tin are gasified to the maximum extent, and mixed metal steam is formed by means of gasification and volatilization; and the mixed metal steam is guided into a fractional condenser connected to a vacuum gasification furnace, the temperatures of condensing areas of the fractional condenser are controlled to be 550-700°C, 300-450°C, and 100-250°C respectively, and crude lead, crude antimony, and crude arsenic products, and refined tin products left by gasification and volatilization are obtained respectively. The method solves the problem of circulation of an antimony element in a tin refining system, has the advantages of short flow, no generation of three wastes, maximum recovery of valuable metals, low treatment cost, high metal recovery rate, direct recovery rate, good operation environment, and safe and controllable process.
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Inventors:
LI YIFU (CN)
ZHANG HUAN (CN)
YANG BIN (CN)
LIU DACHUN (CN)
XU BAOQIANG (CN)
TIAN YANG (CN)
CHEN XIUMIN (CN)
XU JUNJIE (CN)
ZHOU SHENGAN (CN)
ZHANG HUAN (CN)
YANG BIN (CN)
LIU DACHUN (CN)
XU BAOQIANG (CN)
TIAN YANG (CN)
CHEN XIUMIN (CN)
XU JUNJIE (CN)
ZHOU SHENGAN (CN)
Application Number:
PCT/CN2022/107214
Publication Date:
February 02, 2023
Filing Date:
July 22, 2022
Export Citation:
Assignee:
UNIV KUNMING SCIENCE & TECHNOLOGY (CN)
International Classes:
C22B13/00; C22B9/02; C22B25/00; C22B30/02; C22B30/04
Foreign References:
| CN113737007A | 2021-12-03 | |||
| CN111607708A | 2020-09-01 | |||
| CN107217145A | 2017-09-29 | |||
| CN104651626A | 2015-05-27 | |||
| CN101781711A | 2010-07-21 | |||
| CN206232790U | 2017-06-09 | |||
| CN104651625A | 2015-05-27 | |||
| CN102492861A | 2012-06-13 |
Attorney, Agent or Firm:
BEIJING HENGLV INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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