Treatments of Magnesium slag to Recycle Waste from Pidgeon Process

被引：11

作者：

Han, Fenglan ^{[1
]}

Yang, Qixing ^{[2
]}

Wu, Laner ^{[1
]}

Guo, Shengwei ^{[1
]}

机构：

[1] Beifang Univ Nationalities, Sch Mat Sci & Engn, Ningxia 750021, Peoples R China

[2] Lulea Univ Technol, Minerals & Metals Res Lab, SE-971 87 Lulea, Sweden

来源：

MATERIALS PROCESSING TECHNOLOGY, PTS 1-3 | 2012年 / 418-420卷

关键词：

Magnesium; Pidgeon Process; Slag; Disintegration; Valorization; Sintering; Stabilization; Building Material; Borates; DESULFURIZATION; REDUCTION; IRON;

D O I：

10.4028/www.scientific.net/AMR.418-420.1657

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Magnesium slag powder from a local magnesium plant was treated to improve the volume stability for its application as building materials. The slag was mixed with borates, pressed into briquettes, and then sintered at high temperature. SEM studies show that at the higher temperature Ca2SiO4 polymorphs were stabilized by Na and B ions in the added borates. The free MgO content in the slag was also decreased by the sintering treatment. The slag powder, after mixing with 0.4-0.6% of borates and sintered at 1200 degrees C in 5-6 hours, has become volume stable aggregates. It is then possible to use the treated slag in constructions, saving valuable natural resources and decreasing the global warming impact from magnesium production via Pidgeon process.

引用

页码：1657 / +

页数：2

共 29 条

[1] FactSage thermochemical software and databases - recent developments [J].

Bale, C. W. ;

Belisle, E. ;

Chartrand, P. ;

Decterov, S. A. ;

Eriksson, G. ;

Hack, K. ;

Jung, I. -H. ;

Kang, Y. -B. ;

Melancon, J. ;

Pelton, A. D. ;

Robelin, C. ;

Petersen, S. .

CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY, 2009, 33 (02) :295-311

[2] A way to reduce environmental impact of ladle furnace slag [J].

Branca, T. A. ;

Colla, V. ;

Valentini, R. .

IRONMAKING & STEELMAKING, 2009, 36 (08) :597-602

[3] Economical and environmental factors in light alloys automotive applications [J].

Caceres, Carlos H. .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2007, 38A (07) :1649-1662

[4]

CHEN Wan-kun, 1995, CHANGSHA, P165

[5]

*CHIN NONF MET IND, 2005, YB NONF MET IND CHIN, P503

[6]

Cui Z., 2006, FLY ASH COMPR UTIL, P8

[7]

Cui Zizhi, 2008, J NINGXIA U NATURAL, V29, P230

[8] Borate distribution in stabilized stainless-steel slag [J].

Durinck, Dirk ;

Arnout, Sander ;

Mertens, Gilles ;

Boydens, Eddy ;

Jones, Peter Tom ;

Elsen, Jan ;

Blanpain, Bart ;

Wollants, Patrick .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2008, 91 (02) :548-554

[9]

Durinck Dirk, 2008, GLOBALSLAGMAGAZI MAR, P25

[10] Assessing environmental impact of magnesium production using Pidgeon process in China [J].

Gao Feng ;

Nie Zuo-ren ;

Wang Zhi-hong ;

Gong Xian-zheng ;

Zuo Tie-yong .

TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA, 2008, 18 (03) :749-754

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