Investigation on resource utilization of stainless steel sludge containing nickel and chromium
FENG Qi1,WANG Qiang2,PENG Feng2
（1. Gansu Runyuan Environmental and Resource Technology Co., Ltd., JISCO,Jiayuguan 735100, Gansu, China 2. Metallurgy and Raw Materials Department, China Metallurgical Industry Planning and Research Institute, Beijing 100711, China）
Abstract：Stainless steel production will generate a large number of nickel- chromium solid wastes such as stainless steel dust and pickling sludge. If handled inappropriately, it will not only cause the waste of nickel, chromium and other resources, but also bring serious environmental pollution. Although there are many resource utilization methods of the wastes presently, there are also some limitations on the recycling of valuable metal elements or the resource utilization for producing cement, ceramsite, chemical paint and fertilizer. Therefore, the resource utilization of sludge should be focused on the direct recycling in stainless steel production in the future.
2018, Vol. 28 
