Apparatus for the enhanced separation of impurities from coal
AssigneeThe Standard Oil Company
InventorsLester E. Burgess, Karl M. Fox, Phillip E. McGarry, David E. Herman
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Abstract
An improved process for the beneficiation of coal and the separation of impurities therefrom comprising subjecting coal to surface treatment by contact with an aqueous medium comprising polymerizable monomer, polymerization catalyst and liquid organic carrier, thereby rendering said coal hydrophobic and oleophilic, the improvement comprising the high shear intermixing of the surface treated coal with at least one water wash medium thereby providing for the removal of further hydrophilic impurities, such as mineral ash from the coal. Apparatus for carrying out the process and the products prepared therefrom are also provided.
Claims7
An arrangement for producing a beneficiated coal product, said arrangement comprising in sequential combination:
- coal pulverization means;
- means for feeding pulverized coal from said coal pulverization means to a surface treatment reaction zone;
- a surface treatment reaction zone having means for introducing measured amounts of chemical reactants for providing surface treatment of said coal in an aqueous medium;
- means for introducing surface treated coal from said surface treatment reaction zone to a water wash zone;
- and
- at least one water wash zone having means for admixing ingredients introduced or contained therein under high shear agitation.
Dependencies are inferred from the claim text.