Leaching of the residue from the dry off-gas de-dusting and desulfurization process of an iron ore sinter plant

Christof Lanzerstorfer; Qi Xu; Robert Neuhold

doi:10.1007/s12613-015-1051-9

Volume 22 Issue 2

Feb. 2015

Turn off MathJax

Article Contents

Abstract

International Journal of Minerals, Metallurgy and Materials > 2015 > 22(2): 116-121. > DOI: 10.1007/s12613-015-1051-9

Christof Lanzerstorfer, Qi Xu, and Robert Neuhold, Leaching of the residue from the dry off-gas de-dusting and desulfurization process of an iron ore sinter plant, Int. J. Miner. Metall. Mater., 22(2015), No. 2, pp.116-121. https://dx.doi.org/10.1007/s12613-015-1051-9

Cite this article as:

PDF (234 KB)

Leaching of the residue from the dry off-gas de-dusting and desulfurization process of an iron ore sinter plant

Author Affilications

School of Engineering/Environmental Sciences, University of Applied Sciences Upper Austria, Stelzhamerstraße 23, Wels A-4600, Austria
Siemens VAI Metals Technologies GmbH, Turmstraße 44, Linz A-4031, Austria

Funds:

by the Styrian Business Promotion Agency

and by the Tiroler Zukunftsstiftung. The authors also gratefully acknowledged the help from Mrs. Suzan Falkensammer for proofreading.

by the federal states of Upper Austria, Styria, and Tyrol

by the Federal Ministry for Transport, Innovation and Technology

This work was financially supported by the research program of K1-MET, which has been financially supported within the Austrian competence centre program COMET by the Federal Ministry of Economy, Family and Youth

Received: 13 April 2014; Revised: 18 July 2014; Accepted: 21 July 2014; Available Online: 09 June 2021

Graphical Abstract

Abstract

Abstract

The residue from a second-stage dry sinter plant off-gas cleaning process contains both the fine dust from the sinter plant and the sorbent used. Recycling of the material that is usually handled by landfills to the sinter plant feed is not possible because of its chloride content. Leaching of the chlorides allow the recycling of remaining solids. The saline leachate produced contains some heavy metals and must be treated before it is discharged into the sea. In laboratory experiments, leaching tests with the subsequent treatment of the leachate were conducted. After the process was optimized, all heavy-metal concentrations were below the permissible values. The optimum treatment conditions for heavy-metal precipitation were observed to be the filtration of the suspended solids followed by the dosing of liquid with lime milk (pH 10) and the subsequent precipitation using sodium sulfide.
- heavy metals,
- off-gas cleaning,
- recycling,
- residues,
- leaching,
- sinter plants

FullText(HTML)

References (0)

[1]	Peng Xing, Bao-zhong Ma, Peng Zeng, Cheng-yan Wang, Ling Wang, Yong-lu Zhang, Yong-qiang Chen, Shuo Wang, Qiu-yin Wang. Deep cleaning of a metallurgical zinc leaching residue and recovery of valuable metals [J]. International Journal of Minerals, Metallurgy and Materials, 2017, 24(11): 1217-1227. DOI: 10.1007/s12613-017-1514-2
[2]	Dong-hui Liu, Hao Liu, Jian-liang Zhang, Zheng-jian Liu, Xun Xue, Guang-wei Wang, Qing-feng Kang. Basic characteristics of Australian iron ore concentrate and its effects on sinter properties during the high-limonite sintering process [J]. International Journal of Minerals, Metallurgy and Materials, 2017, 24(9): 991-998. DOI: 10.1007/s12613-017-1487-1
[3]	Guo-liang Zhang, Sheng-li Wu, Bo Su, Zhi-gang Que, Chao-gang Hou, Yao Jiang. Influencing factor of sinter body strength and its effects on iron ore sintering indexes [J]. International Journal of Minerals, Metallurgy and Materials, 2015, 22(6): 553-561. DOI: 10.1007/s12613-015-1107-x
[4]	Le Wang, Wen-ning Mu, Hong-tao Shen, Shao-ming Liu, Yu-chun Zhai. Leaching of lead from zinc leach residue in acidic calcium chloride aqueous solution [J]. International Journal of Minerals, Metallurgy and Materials, 2015, 22(5): 460-466. DOI: 10.1007/s12613-015-1094-y
[5]	Nouari Saheb. Spark plasma and microwave sintering of Al6061 and Al2124 alloys [J]. International Journal of Minerals, Metallurgy and Materials, 2013, 20(2): 152-159. DOI: 10.1007/s12613-013-0707-6
[6]	Ze-quan Li, Li-yue Ru, Cheng-guang Bai, Na Zhang, Hai-hua Wang. Effect of sintering temperature on the electrolysis of TiO₂ [J]. International Journal of Minerals, Metallurgy and Materials, 2012, 19(7): 636-641. DOI: 10.1007/s12613-012-0606-2
[7]	Gen-sheng Feng, Sheng-li Wu, Hong-liang Han, Luo-wen Ma, Wei-zhong Jiang, Xiao-qin Liu. Sintering characteristics of fluxes and their structure optimization [J]. International Journal of Minerals, Metallurgy and Materials, 2011, 18(3): 270-276. DOI: 10.1007/s12613-011-0433-x
[8]	Jik-chang Leong, Kai-wun Jin, Jia-shyan Shiau, Tzer-ming Jeng, Chang-hsien Tai. Effect of sinter layer porosity distribution on flow and temperature fields in a sinter cooler [J]. International Journal of Minerals, Metallurgy and Materials, 2009, 16(3): 265-272. DOI: 10.1016/S1674-4799(09)60048-0
[9]	Yan-guang Chen, Zhan-cheng Guo, Zhi Wang, Gen-sheng Feng. NO_x reduction in the sintering process [J]. International Journal of Minerals, Metallurgy and Materials, 2009, 16(2): 143-148. DOI: 10.1016/S1674-4799(09)60024-8
[10]	Wenxia Pan, Fanxiu Lü, Toyonobu Yoshida. Rapid Sintering of Alumina in Low Pressure RF Plasma [J]. International Journal of Minerals, Metallurgy and Materials, 1999, 6(2): 133-135.

Cited By

Cited by

Periodical cited type(3)

1.	Z. Yi, J. Qin, Z. Deng, et al. Prediction NOx emission from sintering plant with a radial basis function and back propagation hybrid neural network. International Journal of Environmental Science and Technology, 2022, 19(6): 5049. DOI:10.1007/s13762-021-03379-y
2.	Christof Lanzerstorfer. Potential of industrial de-dusting residues as a source of potassium for fertilizer production – A mini review. Resources, Conservation and Recycling, 2019, 143: 68. DOI:10.1016/j.resconrec.2018.12.013
3.	Christof Lanzerstorfer. Ironmaking and Steelmaking Processes. DOI:10.1007/978-3-319-39529-6_18