CAS OpenIR  > 湿法冶金清洁生产技术国家工程实验室
NH4Cl selective leaching of basic oxygen furnace slag: Optimization study using response surface methodology
Sun, Yong1,2; Zhang, Jing Ping2; Zhang, Lian3
2016-09-01
Source PublicationENVIRONMENTAL PROGRESS & SUSTAINABLE ENERGY
ISSN1944-7442
Volume35Issue:5Pages:1387-1394
Abstract

The basic oxygen furnace slag (SL) was selectively leached by NH4Cl. Response surface methodology and the central composite design (CCD) were employed in determining the optimal condition. The process parameters such as leaching duration, NH4Cl concentration, liquid solid ratio (LSR), and leaching temperature were chosen as independent variables in CCD. The quadratic model was developed for process optimization and statistical experimental designs. It is found that the leaching duration, NH4Cl concentration and liquid solid ratio are significant to the extraction of Ca2+ and Mg2+. The optimal conditions with setting maximum extraction of calcium and magnesium cations from SL are as following: 68min (X-1), 1.8mol/L NH4Cl (X-2), LSR 12mL/g (X-3), 53 degrees C (X-4), with the predicted Ca2+ and Mg2+ concentration reaching 13.3 and 3.2g/L, respectively. The proposed simplified leaching mechanism indicates a two-stage leaching. The prone leachable MgFe2O4 and Ca2Fe2O5 are extracted in the fast stage, while the extraction of CaO occurs throughout slow stage. (c) 2016 American Institute of Chemical Engineers Environ Prog, 35: 1387-1394, 2016

KeywordBasic Oxygen Furnace Steelmaking Slag Nh4cl Statistical Analysis Optimization
SubtypeArticle
WOS HeadingsScience & Technology ; Technology ; Life Sciences & Biomedicine
DOI10.1002/ep.12365
Indexed BySCI
Language英语
WOS KeywordCOAL FLY-ASH ; CO2 MINERAL SEQUESTRATION ; FISCHER-TROPSCH SYNTHESIS ; VACUUM SWING ADSORPTION ; ACTIVATED CARBON ; STEELMAKING SLAG ; CALCIUM-CARBONATE ; H3PO4 ACTIVATION ; TRACE-ELEMENTS ; GAS SEPARATION
WOS Research AreaEngineering ; Environmental Sciences & Ecology
WOS SubjectEngineering, Environmental ; Engineering, Chemical ; Engineering, Industrial ; Environmental Sciences
WOS IDWOS:000384044300019
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/21622
Collection湿法冶金清洁生产技术国家工程实验室
Affiliation1.Edith Cowan Univ, Sch Engn, 270 Joondalup Dr, Joondalup, WA 6027, Australia
2.Chinese Acad Sci, Natl Engn Lab Cleaner Prod Technol, Inst Proc Engn, Beijing 100190, Peoples R China
3.Monash Univ, Dept Chem Engn, Monash, Vic 3800, Australia
Recommended Citation
GB/T 7714
Sun, Yong,Zhang, Jing Ping,Zhang, Lian. NH4Cl selective leaching of basic oxygen furnace slag: Optimization study using response surface methodology[J]. ENVIRONMENTAL PROGRESS & SUSTAINABLE ENERGY,2016,35(5):1387-1394.
APA Sun, Yong,Zhang, Jing Ping,&Zhang, Lian.(2016).NH4Cl selective leaching of basic oxygen furnace slag: Optimization study using response surface methodology.ENVIRONMENTAL PROGRESS & SUSTAINABLE ENERGY,35(5),1387-1394.
MLA Sun, Yong,et al."NH4Cl selective leaching of basic oxygen furnace slag: Optimization study using response surface methodology".ENVIRONMENTAL PROGRESS & SUSTAINABLE ENERGY 35.5(2016):1387-1394.
Files in This Item:
File Name/Size DocType Version Access License
NH4Cl selective leac(711KB)期刊论文出版稿限制开放CC BY-NC-SAApplication Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Sun, Yong]'s Articles
[Zhang, Jing Ping]'s Articles
[Zhang, Lian]'s Articles
Baidu academic
Similar articles in Baidu academic
[Sun, Yong]'s Articles
[Zhang, Jing Ping]'s Articles
[Zhang, Lian]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Sun, Yong]'s Articles
[Zhang, Jing Ping]'s Articles
[Zhang, Lian]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.