Production of aqueous coal slurries having high coal contents

Details Production of aqueous coal slurries having high coal contents Production of aqueous coal slurries having high coal contents

1984-02-17

1986-06-03

Dixon, Jr., William R.

Fuel and related compositions

Liquid fuels

Aluminum or heavy metal, other than lead, containing

44 73, 44 77, 252351, 252357, C10L 132

Patent

active

045927596

ABSTRACT:
Coarse coal particles are pulverized to at least 70% passing through a standard 200 mesh screen in the presence of water in an amount to form aqueous coal slurries having a coal concentration from 60 to 80% by weight. The pulverization is carried out also in the presence of polyether typed polyoxyalkylene adducts having a high molecular weight with polyols having at least three active hydrogen atoms, phenol/aldehyde condensates of polyalkyleneimines, or derivatives of these adducts.

REFERENCES:
patent: 4251229 (1981-02-01), Naka et al.
patent: 4282006 (1981-08-01), Funk
patent: 4358293 (1982-11-01), Mark
patent: 4389219 (1983-06-01), Naka et al.
patent: 4436527 (1984-03-01), Yamamura et al.

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