Fuel and related compositions – Coal treating process or product thereof – Removal of undesirable
Patent
1995-06-13
1996-06-25
Willis, Jr., Prince
Fuel and related compositions
Coal treating process or product thereof
Removal of undesirable
209 5, 210732, 210733, C10L 500
Patent
active
055295886
ABSTRACT:
The invention provides an improved method for dewatering coal tailing aqueous slurries in a twin belt press process. The method including the step of adding to the slurry a high molecular weight anionic flocculant followed by a coagulant containing vinylamine. The flocculated coal is then mechanically dewatered using a twin belt press.
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Pillai Krishnan J.
Sommese Anthony G.
Charlier Patricia A.
Drake James J.
Miller Robert A.
Nalco Chemical Company
Silbermann James M.
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