METHOD FOR ELEMENTAL SULFUR PRODUCTION Russian patent published in 1994 - IPC

Abstract RU 2006456 C1

FIELD: elemental sulfur production. SUBSTANCE: method is carried out by reduction phosphorogypsum (gypsum, calcium sulfate) by gaseous mixture at elevated temperature. Said gaseous mixture contains, vol % : methane 0.5-2.1, aqueous vapor 97.8-99.5. Reduction takes place within 30-60 min at 950-1050 C. Degree of sulfur recovery is 57.3- 74.25% . EFFECT: improves efficiency of the method. 1 tbl

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RU 2 006 456 C1

Authors

Oshchapovskij V.V.

Dates

1994-01-30—Published

1990-08-13—Filed