Process for clarifying coal wash waters

Details Process for clarifying coal wash waters Process for clarifying coal wash waters

1977-05-02

1979-02-27

Spear, Jr., Frank A.

Liquid purification or separation

With alarm, indicator, register, recorder, signal or...

Responsive to fluid flow

B01D 2101

Patent

active

041418271

ABSTRACT:
Use of quaternized Mannich bases of low molecular weight polyacrylamides is highly effective in clarifying coal wash waters.

REFERENCES:
patent: 3014896 (1961-12-01), Colwell et al.
patent: 3023162 (1962-02-01), Fordyce et al.
patent: 3578586 (1971-05-01), Gal et al.
patent: 3864312 (1975-02-01), Suzuki et al.
patent: 3897333 (1975-07-01), Field et al.
patent: 3907758 (1975-09-01), Sackman et al.
patent: 3943114 (1976-03-01), Hoke
patent: 3956122 (1976-05-01), Coscia et al.
patent: 4024328 (1977-05-01), Zweigle

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