COPPER SLAG THERMAL-STATE EDDY CURRENT DILUTION METHOD

WIPO Patent Application WO/2022/227183

A1

A copper slag thermal-state eddy current dilution method, comprising the following steps: (1) adding thermal-state copper slag to a dilution furnace to form a molten pool, heating the molten pool and maintaining the temperature using an electrode, or heating the molten pool and maintaining the temperature by means of blowing an oxygen-enriched fuel; (2) stirring the molten pool to form an eddy current; (3) adding a dilution agent for an eddy current dilution reaction; and (4) after the dilution reaction, stopping the stirring, discharging copper slag out of a copper slag layer, discharging materials out of a matte layer, and obtaining diluted slag and matte, respectively. By means of the method provided by the present invention, the uniformity of a temperature field in the dilution furnace is enhanced, the volatilization loss of the dilution agent under high-temperature conditions is reduced, the dilution reaction time is shortened, and the dilution effect is greatly improved.

ZHANG TINGAN (CN)
DOU ZHIHE (CN)
LV GUOZHI (CN)
LI XIAOLONG (CN)
LIU YAN (CN)
ZHANG ZIMU (CN)
HE JICHENG (CN)

PCT/CN2021/096801

November 03, 2022

May 28, 2021

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UNIV NORTHEASTERN (CN)
DONGDA NONFERROUS SOLID WASTE TECH RESEARCH INSTITUTE LIAOLING CO LTD (CN)

C22B7/04; C22B15/00

CN105671325A	2016-06-15
CN105671326A	2016-06-15
CN110106433A	2019-08-09
CN110004352A	2019-07-12
CN105779778A	2016-07-20
CN102888483A	2013-01-23
KR101821253B1	2018-01-23

SHENYANG DONGDA INTELLECTUAL PROPERTY AGENCY CO., LTD (CN)

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