Methods for the flocculation of coal fines and insoluble metals

Details Methods for the flocculation of coal fines and insoluble metals Methods for the flocculation of coal fines and insoluble metals

1991-08-29

1993-02-02

Silverman, Stanley S.

Liquid purification or separation

Processes

Making an insoluble substance or accreting suspended...

210728, 210730, 210735, C02F 156

Patent

active

051835754

ABSTRACT:
Coal fines and suspended insoluble metals are flocculated from coal mine drainage waters by adding a polymeric tannin-amine compound.

REFERENCES:
patent: 2069024 (1937-01-01), Vohmann et al.
patent: 3374081 (1968-03-01), Miller
patent: 4558080 (1985-12-01), Quamme et al.
patent: 4775744 (1988-10-01), Schilling et al.
patent: 4781839 (1988-11-01), Kelly et al.
patent: 4781840 (1988-11-01), Schilling et al.
patent: 4906386 (1990-03-01), Vasconcellos et al.

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