Solids recovery from coal liquefaction slurry

Details Solids recovery from coal liquefaction slurry Solids recovery from coal liquefaction slurry

1976-04-20

1977-06-14

Gantz, Delbert E.

Mineral oils: processes and products

Phenolic or toxic oils

C10G 104

Patent

active

040295672

ABSTRACT:
A process for removing mineral matter from a solubilized coal slurry while retaining the asphaltenes with the coal solution in which the slurry is agitated with an alkanolamine or other hydrophilic agglomerating agent in the presence of an aromatic solvent or a polyvinyl alcohol, to form relatively large agglomerates which contain substantially all of the mineral matter, the undissolved coal, the agglomerating agent and some entrained coal solution and which can be separated rapidly from the coal solution by gravity settling. The agglomerates can then be washed with a solvent to recover entrained coal solution, which can in turn be distilled to recover solvent, a high boiling coal solution and agglomerating agent for recycling.

REFERENCES:
patent: 2476999 (1949-07-01), Orchin
patent: 3535224 (1970-10-01), Corey et al.
patent: 3791956 (1974-02-01), Gorin et al.
patent: 3852183 (1974-12-01), Snell
patent: 3997425 (1976-12-01), Gatsis et al.

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