TREATMENT OF SULFIDE MINERALS BY OXIDATIVE LEACHING WITH OZONE

被引：33

作者：

Carrillo Pedroza, Francisco Raul ^{[1
]}

Soria Aguilar, Maria de Jesus ^{[1
]}

Pecina Trevino, Teresa ^{[2
]}

Martinez Luevanos, Antonia ^{[3
]}

Sanchez Castillo, Marco ^{[4
]}

机构：

[1] Univ Autonoma Coahuila, Fac Met, Monclova 25710, Coahuila, Mexico

[2] Univ Autonoma Coahuila, Escuela Super Ingn, Nueva Rosita, Coahuila, Mexico

[3] Univ Autonoma Coahuila, Fac Ciencias Quim, Saltillo, Coahuila, Mexico

[4] Univ Autonoma San Luis Potosi, Fac Ciencias Quim, San Luis Potosi, Mexico

来源：

MINERAL PROCESSING AND EXTRACTIVE METALLURGY REVIEW | 2012年 / 33卷 / 04期

关键词：

coal; copper; gold; hydrometallurgy; ozone; silver; sulfide; HYDROGEN-PEROXIDE; CHALCOPYRITE; DESULFURIZATION; SULFUR; COAL;

D O I：

10.1080/08827508.2011.584093

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Sulfide minerals are one of the most important sources of metal values. On the other hand, some sulfides such as pyrite are considered as one of the major impurities in solid fossil fuels such as coal. Oxidation of these sulfides has been one route to obtain base metals and to remove sulfur by leaching. This work summarizes the results obtained regarding the use of ozone in the oxidation of sulfide ores containing gold, silver, and copper. Results show that the extraction of gold and silver is increased by at least 15%, with lower cyanide consumption; the extraction of copper increased by 16% and in less time; and in the case of coal, sulfur is removed above 70%. These results indicate that oxidation treatment with ozone could be a promising clean technology to optimize ore processing, which is difficult to treat by current industrial methods.

引用

页码：269 / 279

页数：11

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