Title:
METHOD AND APPARATUS FOR COMPREHENSIVE RECYCLING OF COPPER SMELTING SLAG
Document Type and Number:
WIPO Patent Application WO/2019/128754
Kind Code:
A1
Abstract:
A method and apparatus for the comprehensive recycling of copper smelting slag. The method comprises the following steps: introducing copper smelting slag to a cavity by means of a first inlet; and in the heat supply state of an electrode and in the presence of a reducing agent, recycling valuable metal in the copper smelting slag. The apparatus used in the method comprises a CR furnace and a reducing agent supply device. The reducing agent supply device is used for supplying a reducing agent to the CR furnace. The CR furnace comprises a housing and an electrode; a cavity is formed in the housing; the housing is provided with a first inlet; the electrode passes through the housing and extends to the cavity for heat supply; and the volume of the part of the electrode extending into the cavity accounts for 1.5-5.5% of the total capacity of the cavity. The process can more comprehensively recycle the valuable metal in the copper smelting slag, is simple, can remove the hidden danger of secondary pollution of slag flotation tailings, and thus is suitable for industrial large-scale application.
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Inventors:
LI DONGBO (CN)
LU ZHIFANG (CN)
WEI KEJIAN (CN)
JIANG JIMU (CN)
LIANG SHUAIBIAO (CN)
RU HONGSHUN (CN)
GUO YAGUANG (CN)
LI MIN (CN)
LU JINZHONG (CN)
ZHANG HAIXIN (CN)
WU CHUANGU (CN)
LI BING (CN)
CAO KEFEI (CN)
LIU KAI (CN)
SUN XIAOFENG (CN)
LU ZHIFANG (CN)
WEI KEJIAN (CN)
JIANG JIMU (CN)
LIANG SHUAIBIAO (CN)
RU HONGSHUN (CN)
GUO YAGUANG (CN)
LI MIN (CN)
LU JINZHONG (CN)
ZHANG HAIXIN (CN)
WU CHUANGU (CN)
LI BING (CN)
CAO KEFEI (CN)
LIU KAI (CN)
SUN XIAOFENG (CN)
Application Number:
PCT/CN2018/121457
Publication Date:
July 04, 2019
Filing Date:
December 17, 2018
Export Citation:
Assignee:
CHINA ENFI ENG CORP (CN)
International Classes:
C22B7/04; C22B4/04; C22B5/10; C22B7/02; C22B15/00
Foreign References:
| CN108034832A | 2018-05-15 | |||
| CN108165755A | 2018-06-15 | |||
| CN208008863U | 2018-10-26 | |||
| CN101838739A | 2010-09-22 | |||
| CN101845554A | 2010-09-29 | |||
| CN101603127A | 2009-12-16 | |||
| JP5074332B2 | 2012-11-14 |
Attorney, Agent or Firm:
KANGXIN PARTNERS,P.C. (CN)
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