METHOD FOR PRODUCTION OF ARSENIC ACID Russian patent published in 1996 - IPC

Abstract RU 2053201 C1

FIELD: chemical technology. SUBSTANCE: method for production of arsenic acid includes leaching of copper arsenide slime by means of solution of hydrogen peroxide in the presence of elementary sulfur. Optimal parameters of leaching process: temperature 60-70 C; duration of the process 120-150 min; L: S= 5: 1-10:1; concentration of hydrogen peroxide 5-10%; sulfur consumption 0.2-0.25 g per gram of copper in slime. EFFECT: reduced consumption of hydrogen peroxide and simplified process. 1 tbl

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RU 2 053 201 C1

Authors

Kuzgibekova Khanat[Kz]

Isabaev Sagintaj Makatovich[Kz]

Sivak Lidija Fedorovna[Kz]

Dates

1996-01-27—Published

1991-12-27—Filed