Process for the disposal and economic use of the residue of the

Details Process for the disposal and economic use of the residue of the Process for the disposal and economic use of the residue of the

1980-06-06

1984-04-10

Suchfield, George A.

Hydraulic and earth engineering

Earth treatment or control

Chemical

299 11, E02D 314

Patent

active

044418400

ABSTRACT:
An improved process for utilizing the residues of a thermal energy power plant washer in which limestone or lime residue is converted to gypsum and the substrate is recrystallized to alpha sulfate hemihydrate and is treated with water. The improvement comprises mixing the alpha sulfate hemihydrate with at least one additive. The additive is selected from the group consisting of flue ash from a coal combustion installation, waste washings or local tailings from coal recuperation, granulate of ash from coal combustion, slag from steel production, clacium sulfate from exhaust gas washers, and calcium sulfate dehydrate from exhaust gas washers.

REFERENCES:
patent: 2492212 (1949-12-01), Dailey
patent: 3500934 (1970-03-01), Magnuson
patent: 3582376 (1971-06-01), Ames
patent: 3859799 (1975-01-01), Jaco, Jr.
patent: 3927719 (1975-12-01), Maser
patent: 4136998 (1979-01-01), Bassier et al.
patent: 4236849 (1980-12-01), Kennedy-Skipton

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