The behavior of arsenic trioxide in non-ferrous extractive metallurgical processing

M. Sadegh Safarzadeh; J.D. Miller; H.H. Huang

首页> 外文期刊>Revue de Metallurgie: Cahiers d'Informations Techniques >The behavior of arsenic trioxide in non-ferrous extractive metallurgical processing

【24h】

The behavior of arsenic trioxide in non-ferrous extractive metallurgical processing

机译：The behavior of arsenic trioxide in non-ferrous extractive metallurgical processing

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相关主题

摘要

Study of the acid bake-leach process has shown potential advantages for the treatment of enargite (Cu_3AsS_4) concentrates. Among the most important advantages of the process is the transformation of enargite to water-soluble copper sulfate and highly soluble arsenic trioxide (arsenolite). Because arsenic is retained in the condensed phase during the baking, the vapor pressure of arsenic trioxide should be estimated at typical baking temperatures (e.g. 473 K). To that end, the vapor pressure of As_40_6 (g) was estimated under the baking conditions based on published thermodynamic values. The vapor pressure of arsenolite at 473 K was found to be approximately 9.03 x 1CT~(4) atm. Based on the linear regression analysis of the published vapor pressure values for arsenolite in the temperature range 366-579 K, the equation for the best fit line was found to be as follows, with a correlation coefficient of 0.9973:Available information on arsenic trioxide does not allow a definite conclusion regarding the arsenolite/claudetite transformation temperature and their exact melting points. However, the transition temperature has been reported to be in the wide range of 240-506 K in different references. Furthermore, the thermodynamic information concerning arsenolite/claudetite is sparse and at times not consistent. An effort has been made in this paper to compile the most reliable thermodynamic information for arsenic trioxide (arsenolite and claudetite).

著录项

来源
《Revue de Metallurgie: Cahiers d'Informations Techniques》 |2014年第2期|95-105|共11页
作者
M. Sadegh Safarzadeh; J.D. Miller; H.H. Huang;
展开▼
作者单位

Department of Materials and Metallurgical Engineering, South Dakota School of Mines and Technology, 501 East Saint Joseph Street, Rapid City, SD 57701-3995, US.;

Department of Metallurgical Engineering, College of Mines and Earth Sciences, University of Utah,135 South 1460 East, Room 412, William C. Browning Building, Salt Lake City, UT 84112-0114, US.;

Department of Metallurgical and Materials Engineering, Montana Tech of The University of Montana, 215 ELC Building, 1300 West Park Street, Butte, MT 59701-8997, US.;

展开▼
收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种英语
中图分类冶金工业;
关键词
acid bake; enargite; vapor pressure; arsenolite; claudetite; copper sul-fate;

The behavior of arsenic trioxide in non-ferrous extractive metallurgical processing

摘要

著录项

相关主题

期刊订阅