FIELD: production of industrial sorbents. SUBSTANCE: waste from aluminium foil production glued to paper or polymer film is disintegrated into stripes with width not larger than 1.5 mm which are molded under pressure 3-6 MPa. Then thus obtained material is carbonized for 10- 15 min at 630-770 C and activated by heat treatment in presence of steam for 10-15 min at 780-920 C. Product is finally crushed and fraction with particle size lesser than 0.3 mm is isolated. EFFECT: utilized waste. 2 cl, 1 tbl
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Authors
Dates
1997-01-27—Published
1993-06-29—Filed