Zinc Residue Fuming Process
in Side-Submerged Combustion
Furnace + Fuming Furnace
Liang Xu and Shaobin Ma
Abstract Zinc hydrometallurgy is the main zinc smelting process in the world.
The leaching residues produced by different hydrometallurgical processes have different components, but usually contain valuable metals such as zinc, lead, and silver.
In China, the slag is defined as hazardous waste, which needs to be treated harmlessly while recovering valuable metals. This paper introduces the process of treating
zinc residue by side-submerged combustion furnace and fuming furnace developed
by ENFI and makes a detailed comparison with rotary kiln, top-submerged lance
smelting furnace, and fuming furnace which are used in the China.
Keywords Zinc residue · Lance · Side-submerged combustion · Oxygen
Introduction of Zinc Residue Treatment Technology
Zn hydrometallurgy is the main zinc smelting technology in the world. It accounts
for more than 85% of the total zinc smelting in the world. The leaching residues
produced by different hydrometallurgical processes have different components, but
usually contain valuable metals such as Pb, Cd, and As. China has identified leaching
residues as hazardous waste. Therefore, zinc smelting smelter needs to dispose of
leaching residues harmlessly and recover valuable metals such as zinc, lead, and
silver at the same time.
At present, the main technology of zinc residues treatment in China is rotary kiln
(Waelz), fuming furnace (FF) and top-submerged lance smelting furnace (TSL).
L. Xu (B)
China ENFI Engineering Co., Ltd., Beijing 100038, China
e-mail: xuliang@enfi.com.cn
S. Ma
Yunnan Chihong Zn & Ge Co., Ltd., Huize 654200, China
e-mail: 2364310322@qq.com
© The Minerals, Metals & Materials Society 2020
A. Siegmund et al. (eds.), PbZn 2020: 9th International Symposium
on Lead and Zinc Processing, The Minerals, Metals & Materials Series,
https://doi.org/10.1007/978-3-030-37070-1_22
265
in Side-Submerged Combustion
Furnace + Fuming Furnace
Liang Xu and Shaobin Ma
Abstract Zinc hydrometallurgy is the main zinc smelting process in the world.
The leaching residues produced by different hydrometallurgical processes have different components, but usually contain valuable metals such as zinc, lead, and silver.
In China, the slag is defined as hazardous waste, which needs to be treated harmlessly while recovering valuable metals. This paper introduces the process of treating
zinc residue by side-submerged combustion furnace and fuming furnace developed
by ENFI and makes a detailed comparison with rotary kiln, top-submerged lance
smelting furnace, and fuming furnace which are used in the China.
Keywords Zinc residue · Lance · Side-submerged combustion · Oxygen
Introduction of Zinc Residue Treatment Technology
Zn hydrometallurgy is the main zinc smelting technology in the world. It accounts
for more than 85% of the total zinc smelting in the world. The leaching residues
produced by different hydrometallurgical processes have different components, but
usually contain valuable metals such as Pb, Cd, and As. China has identified leaching
residues as hazardous waste. Therefore, zinc smelting smelter needs to dispose of
leaching residues harmlessly and recover valuable metals such as zinc, lead, and
silver at the same time.
At present, the main technology of zinc residues treatment in China is rotary kiln
(Waelz), fuming furnace (FF) and top-submerged lance smelting furnace (TSL).
L. Xu (B)
China ENFI Engineering Co., Ltd., Beijing 100038, China
e-mail: xuliang@enfi.com.cn
S. Ma
Yunnan Chihong Zn & Ge Co., Ltd., Huize 654200, China
e-mail: 2364310322@qq.com
© The Minerals, Metals & Materials Society 2020
A. Siegmund et al. (eds.), PbZn 2020: 9th International Symposium
on Lead and Zinc Processing, The Minerals, Metals & Materials Series,
https://doi.org/10.1007/978-3-030-37070-1_22
265