Leaching of Pre-Oxidated Pyrargyrite with Na2S2O5

被引：0

作者：

Gonzales Martinez, Vicente ^{[1
]}

Hernandez Martinez, Isabel ^{[1
]}

Reyes Perez, M. ^{[1
]}

Perez Labra, M. ^{[1
]}

Juarez Tapia, J. C. ^{[1
]}

Reyes Dominguez, Ivan A. ^{[2
]}

Flores Guerrero, Mizraim Uriel ^{[3
]}

Urbano Reyes, Gustavo ^{[1
]}

机构：

[1] Autonomous Univ State Hidalgo, Acad Area Earth Sci & Mat, Rd Pachuca Tulancingo Kilometer 4-5 Mineral Refor, Pachuca 42180, Hidalgo, Mexico

[2] Autonomous Univ San Luis Potosi, Met Inst, Av Sierra Leona 550,Lomas Second Sect, Potosi 78210, San Luis Potosi, Mexico

[3] Technol Univ Tulancingo, Ind Electromech Area, Rd Ahuehuetitla 301 Col Presas, Tulancingo 43642, Hidalgo, Mexico

来源：

CHARACTERIZATION OF MINERALS, METALS, AND MATERIALS 2020 | 2020年

关键词：

Leaching; Oxidation; Metabisulfite; Pyrargyrite; Cyanide; EXTRACTION; SILVER; GOLD;

D O I：

10.1007/978-3-030-36628-5_64

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Recently, Mexico has established itself as the largest producer of silver in the world; however, the minerals extracted have a very complex mineralogy. Pyrargyrite presents problems of leaching with cyanide. For this reason, the effect of oxidation with metabisulfite prior to leaching with cyanide is studied. The characterization of the mineral confirmed the presence of a single phase of Ag3SbS3, identified in the pattern of DRX PDF 00-019-1135. The MEB-EDS analysis shows the elements of pyrargyrite, antimony 22.90, sulfur 17.4, and silver with 59.6%. From analysis by FTIR, the presence of antimony oxides was found and the formation of sulfates. The leaching of silver with cyanide [0.03]M pre-oxidized with metabisulfite [0.105]M and 96 h, reaches a percentage of silver extraction of 25% in 68 h. The increase in the concentration of oxidizing agent at [0.210]M and the leaching time contributes to achieve recoveries of 37%.

引用

页码：651 / 659

页数：9

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