Incorporation of a coprocessing additive into coal/oil agglomera

Details Incorporation of a coprocessing additive into coal/oil agglomera Incorporation of a coprocessing additive into coal/oil agglomera

1992-01-08

1993-03-02

McAvoy, Ellen

Fuel and related compositions

Coal treating process or product thereof

Removal of undesirable

44621, 44623, C10L 910, C10L 900

Patent

active

051905663

ABSTRACT:
In the present invention, iron sulfate is added in the form of an aqueous wash solution to coal agglomerates after separation of ash from the agglomerated coal. As the agglomerates remain in a continuous water phase, a good dispersion of the iron sulfate solution throughout the agglomerate matrix occurs. At this stage an unexpectedly strong adsorption of Fe ions onto the coal surfaces occurs without any adverse effects on agglomerate integrity and the ability to separate it selectively by floatation. Furthermore, this good dispersion also results in over 94% of the iron sulfate in the wash solution being transferred to the agglomerates. This manner of addition of iron sulphate to coal has been shown to elevate advantageously the lowest temperature at which coke formation occurs during coprocessing.

REFERENCES:
patent: 1990948 (1935-02-01), Loghry
patent: 4171957 (1979-10-01), Moriyama et al.
patent: 4175924 (1979-11-01), Kindig et al.
patent: 4249910 (1981-02-01), Masologites et al.
patent: 4284413 (1981-08-01), Capes et al.
patent: 4396396 (1983-08-01), Mainwaring
patent: 4448585 (1984-05-01), Yoo
patent: 4741278 (1988-05-01), Franke et al.

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