Material for treating heavy metals and metal ions

Details Material for treating heavy metals and metal ions Material for treating heavy metals and metal ions

1989-03-17

1991-04-16

Dixon, Jr., William R.

Compositions: coating or plastic

Coating or plastic compositions

Inorganic settable ingredient containing

C04B 702

Patent

active

050079654

ABSTRACT:
A material for treating heavy metals and metal ions. The material contains as its main components quicklime and cement, and also contains, with respect to the quicklime and the cement, 0.05 to 0.35% by weight of potassium chloride, 0.03 to 0.20% by weight of magnesium chloride, 0.03 to 0.20% by weight of sodium chloride, 0.03 to 0.25% by weight of calcium chloride, 0.00002 to 0.01% by weight of cobalt chloride, 0.00002 to 0.01% by weight of citric acid, and 0.001 to 0.02% by weight of sodium sulfate. Harmful heavy metals and metal ions contained in effluents, slurries and sludges can be securely and inexpensively confined in a state in which they are prevented from elution. A coating of a fatty acid may be formed on the surface of the quicklime.

REFERENCES:
patent: 3663287 (1972-05-01), Mizunoma et al.
patent: 3867161 (1975-02-01), Torii et al.
patent: 3891454 (1975-06-01), Cunningham et al.
patent: 4124405 (1978-11-01), Quienot
patent: 4190454 (1980-02-01), Yamagisi et al.
patent: 4450009 (1984-05-01), Childs et al.
patent: 4741776 (1988-05-01), Bye et al.
patent: 4840671 (1989-06-01), Lynn et al.

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