FIELD: chemical treatment. SUBSTANCE: method involves chemical treatment of gases from F2, HF, Cl2 and ClF3. Absorbing agent has, wt.-% dehydrated CaSO4 30-50; pyrite 50-70. To prepare absorber agent the charge made of CaSO4 and pyrite is moistened, granulated and dried at 300-320 C. Method is used for scrubbing exhaust technological gases. EFFECT: enhanced quality of absorbing agent. 1 tbl
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Authors
Dates
1995-11-10—Published
1992-06-16—Filed