Industrial experiment on heavy metal recovery of stainless steel slag

Volume 7, Issue 2, April 2023     |     PP. 29-42      |     PDF (387 K)    |     Pub. Date: May 4, 2023
DOI: 10.54647/environmental610361    66 Downloads     84052 Views  

Author(s)

Li Baosheng, Li Baosheng, Luoyang Mining Machinery Engineering Design Institute Co.，Ltd. Luoyang, Henan 471039, China
Li Sizhe, Li Sizhe, Trine Engineering Institute, Shaanxi University of Technology, Hanzhong, Shanxi 723001, China

Abstract
Industrial experiments on the hydrometallurgical recovery of heavy metals were carried out to identify ways to prevent heavy metal leaching from stainless steel tail slag and provide a scientific basis for producing steel slag fertilizers. The results showed that the comprehensive recovery percentages for metals could reach up to 86% to 95% with the process described in this paper. The average recovery percentages for Cr and Ni were about 90%. The experimental research results have been applied to engineering, and good results have been achieved. Based on mineralogical phase components of heavy metals and separation mechanisms, technological characteristics and influencing factors of the process were analyzed, and techniques for debugging are described herein. All the results should provide a good reference for widespread applications of the process.

Keywords
Stainless steel slag,Heavy metals,Industrial experiment

Cite this paper
Li Baosheng, Li Sizhe, Industrial experiment on heavy metal recovery of stainless steel slag , SCIREA Journal of Environment. Volume 7, Issue 2, April 2023 | PP. 29-42. 10.54647/environmental610361

References

[ 1 ] Bulut U,Ozverdi A,Erdem M. Leaching behavior of pollutants in ferroc-hrome arc furnace dust and its stabilization/so-lidification using ferrous sulphate and Portland cement. Journal of Hazardous Materials, 2009.162: 893–898.
[ 2 ] A-M.FaE llman. Leaching of chromium and barium from steel Slag in laboratory and field tests-a solubility controlled process Waste Management, 2000(20): 149–154.
[ 3 ] Zhuo Lin，Li Hua，Shi Yonglin，et al. Study on the utilization of steel slag resources in agriculture. Scitech information development ＆ economy, 2011, 21(33):149–150 (in Chinese).
[ 4 ] Zhen Changliang，Na Xianzhao，Qi Yuanhong，et al. Toxicity leaching Characteristic and harmless disposal of stainless steel slag. Journal of Iron and Steel Research, 2012, 32(10): 1–6 (in Chinese).
[ 5 ] Wang Yide. Current status and development of stainless steel in Taiyuan Iron and Steel（Group）Co.Ltd. The chinese journal of nonferrous metals, 2004, 14(5): 72–76 (in Chinese).
[ 6 ] Han Wei，Hydro-processing of stainless steel slag and It’ s application in Baosteel. Baosteel Technology , 2010, 18(3): 32–33 (in Chinese).
[ 7 ] Li Guanghui，Wu Bin，Zhang Yuanbo, et al. Mineralogical characteristics and comprehensive utilization of converter steel slag. Journal of central south university, 2010, 53 (12): 2066–2069 (in Chinese).
[ 8 ] Editorial board of“Mineral Processing Design Manual”. Design Manual for mineral processing.Beijing: Metallurgical Industry Press,1998:180–181.
[ 9 ] Dusing D C,Bishop P L.Effect of redox potential on leaching from stabilized/solidified waste materials.Journal of the Air and Waste Management Association, 1992 (42):56.
[ 10 ] State Environmental Protection Administration. GB5085.7-2007 Identification standards for hazardous wastes-Identification for extraction toxicity. Beijing: China Environmental Science Press,2007(in Chinese).
[ 11 ] Chen Zihong，Ma Guojun Microstructural properties and leaching behavior of the stainless steel EAF slag.Journal of Wuhan University of science and technology, 2009, 35 (10):467–469(in Chinese).
[ 12 ] Luo Liqun，Wang Tao，Liu Linfa. Developments of iron concentrate up gradingand impurity reducing. Morden mining, 2009, 26 (10):2-5 (in Chinese).
[ 13 ] Pillay K，Von Blottniz H，Petersen J.Ageing of chromium(Ⅲ)- bearing slag and its relation to the atmospheric oxidation of solid chromium(Ⅲ)-oxide in the presence of calcium oxide. Chemosphere,2003(52):1771-1799.
[ 14 ] Ma G. Gr(Ⅵ)-containing electric furnace dust and filter cake:characteristics，formation，leachability and stabiliza tion. Pretoria:University of Pretoria, 2005, 25-98.
[ 15 ] Wei Daixiu，Xu Anjun. Beneficial reuse of EAF slag and its leaching behavior of Gr. Iron and steel, 2012, 59 (10)：92-95 (in Chinese).
[ 16 ] Donghee Park，Mechanism and kinetics of reduction by Waste slag generated from iron making industry[J]. Hydrometallurgy, 2008, (93)：72-75.