Features of the bottom blown oxygen copper smelting technology

Zhao, Baojun, Cui, Zhixiang and Wang, Zhi (2013). Features of the bottom blown oxygen copper smelting technology. In: Copper 2013: Copper International Conference, Santiago, Chile, (PY21.1-PY21.2). 1-4 December, 2013.

Author Zhao, Baojun
Cui, Zhixiang
Wang, Zhi
Title of paper Features of the bottom blown oxygen copper smelting technology
Conference name Copper 2013: Copper International Conference
Conference location Santiago, Chile
Conference dates 1-4 December, 2013
Publication Year 2013
Sub-type Published abstract
Open Access Status
Start page PY21.1
End page PY21.2
Total pages 2
Language eng
Formatted Abstract/Summary
The first commercial scale bottom blown oxygen copper smelting furnace has been installed and operated at Dongying Fangyuan Nonferrous Metals Co., Ltd. for 4 years. This is the first modern copper smelting technology developed in China with the advantages of

1) high oxygen enrichment, which results in high productivity, low off-gas volume and negative pressure inside the furnace;

2) high Fe/SiO2 ratio in the slag, which not only reduce the direct cost of the flux (SiO2) but also reduce the slag volume and therefore the heat loss associated with the slag and workload of the slag cleaning;

3) high grade matte (over 70 wt% Cu) and low Cu content (2-3 wt%) in the smelting slag which significantly increase the direct recovery of the smelting process;

4) autothermal operation. When normal concentrate is treated in the bottom blown oxygen furnace no extra fuel is required due to a) low temperature operation (1160-1180 oC); b) high Fe/SiO2 ratio results in low slag volume for less heat loss; c) high concentration oxygen reduces the heat loss associated with the off-gas; d) high heat efficiency as a result of submerge combustion.

The details of these advantages and their influences on the operations are discussed.
Q-Index Code EX
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Conference Paper
Collection: School of Chemical Engineering Publications
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Created: Mon, 17 Mar 2014, 12:37:59 EST by Dr Baojun Zhao on behalf of School of Chemical Engineering