Publications related to Coal mining

Polymeric flocculant for removal of solids from aqueous suspensions or sludges containing coal

The solids are removed from an aq. suspension contg. 4-12 g coal fines/L using a suspension of a water-sol., high-mol. wt., highly crosslinked copolymer of di-Me diallyl ammonium chloride and 0.1-3 mol.% of a crosslinked comonomer, optionally mixed with an ...

(Akademie der Wissenschaften der DDR, Germany).1991

Polyelectrolytic flocculant for accelerating solid sedimentation from coal-containing wastewater

Jutta Christine Wandrey

Sedimentation of solids is accelerated and complete, resulting in a high-quality effluent, when a 0.1% soln. of equal parts of poly(dimethyl-diallyl-ammonium chloride) cationic flocculant and a nonionic or anionic polyacrylamide is used at a rate of 0.25-4 ...

(VEB Braunkohlenkombinat Senftenberg, Ger. Dem. Rep.).1985

Flocculant for promoting solid sedimentation from coal-containing wastewaters

Jutta Christine Wandrey

An aq. soln. of cationic, high mol. wt. poly(diallyldimethylammonium chloride) (I) [26062-79-3], synthesized in very alk. soln. with a ternary initiation system, is added in amts. of 0.25-4.0 mL/L to accelerate sedimentation of solid particles from coal-co ...

(Ger. Dem. Rep.).1983

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