Title:
ANTIMONY-SULFIDE-CONTAINING ORE-BASED MOLTEN SALT ELECTROLYSIS CONTINUOUS PRODUCTION METHOD AND APPARATUS
Document Type and Number:
WIPO Patent Application WO/2023/246367
Kind Code:
A1
Abstract:
An antimony-sulfide-containing ore-based molten salt electrolysis continuous production method and apparatus. The method comprises: (1) putting antimony sulfide ore and eutectic molten salt in a high-antimony electrolytic furnace for constant-current voltage-limiting heating electrolytic smelting, in the smelting process, blowing an inert gas to stir the melt, and respectively discharging a metal antimony liquid and elemental sulfur from an antimony discharge port of the high-antimony electrolytic furnace and a flue gas port of the high-antimony electrolytic furnace; and (2) feeding the post-electrolysis melt obtained in step (1) into a depletion electrolytic furnace through a chute for constant-voltage dilution electrolysis, supplementing molten salt before the electrolysis, respectively discharging the metal antimony liquid and elemental sulfur from an antimony discharge port of the depletion electrolytic furnace and a flue gas port of the depletion electrolytic furnace, and discharging post-depletion slag from a slag discharge port. According to the design of molten salt electrolysis antimony smelting in two connected furnaces, the whole electrolysis process can be carried out simultaneously under two different process parameters according to requirements, so that the purpose of enabling low antimony content in the molten salt electrolysis slag, and molten salt and slag component separation is achieved, and the economic and feasible requirements of industrial production technology are satisfied.
Inventors:
YANG JIANGUANG (CN)
ZHU QIANG (CN)
DING RUIZE (CN)
TANG CHAOBO (CN)
NAN TIANXIANG (CN)
ZENG WEIZHI (CN)
ZHU QIANG (CN)
DING RUIZE (CN)
TANG CHAOBO (CN)
NAN TIANXIANG (CN)
ZENG WEIZHI (CN)
Application Number:
PCT/CN2023/093924
Publication Date:
December 28, 2023
Filing Date:
May 12, 2023
Export Citation:
Assignee:
UNIV CENTRAL SOUTH (CN)
International Classes:
C25B1/01; C25C3/34; C25B15/00; C25C7/06
Domestic Patent References:
| WO2007106709A2 | 2007-09-20 |
Foreign References:
| CN115012003A | 2022-09-06 | |||
| CN104313643A | 2015-01-28 | |||
| CN111172563A | 2020-05-19 | |||
| CN107326400A | 2017-11-07 |
Attorney, Agent or Firm:
CHANGSHA RONG ZHI PATENT AGENCY et al. (CN)
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