Process for the selective agglomeration of sub-bituminous coal f

Details Process for the selective agglomeration of sub-bituminous coal f Process for the selective agglomeration of sub-bituminous coal f

1984-07-09

1988-02-23

Dixon, Jr., William R.

Fuel and related compositions

Liquid fuels

Aluminum or heavy metal, other than lead, containing

44 56, 44 57, 44 61, 44 23, 44 24, C10L 132

Patent

active

047268107

ABSTRACT:
The process involves adding a low quality oil to an aqueous slurry of sub-bituminous coal particles to act as a selective agglomerating agent. When the mixture is agitated, as by pumping it through a pipeline loop, the coal particles agglomerate and may later be separated from the minerals by screening. The low quality oil used is selected from the group consisting of bitumen, heavy oil, and emulsions thereof. In a preferred aspect, a light hydrocarbon diluent, selected from the group consisting of kerosene, naphtha, and diesel oil, is added to improve the agglomeration results.

REFERENCES:
patent: 3957456 (1976-05-01), Verschuur
patent: 4153419 (1979-05-01), Clayfield et al.
patent: 4209301 (1980-06-01), Nicol et al.
patent: 4217110 (1980-08-01), Verschuur
patent: 4448585 (1984-05-01), Yoo

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