Method for separating liquid and solid products of liquefaction

Details Method for separating liquid and solid products of liquefaction Method for separating liquid and solid products of liquefaction

1976-01-12

1978-04-18

Gantz, Delbert E.

Mineral oils: processes and products

Phenolic or toxic oils

210 56, C10G 104

Patent

active

040850293

ABSTRACT:
A method of improving the quality of slurry products taken from coal liquefaction reactors comprising subjecting the slurry to treatment with an alkaline compound such as caustic soda in the presence of steam in order to decompose the phenolic and acidic materials present in the slurry, and to also lower the slurry viscosity to allow separation of solid particles by sedimentation.

REFERENCES:
patent: 1794865 (1931-03-01), Pier et al.
patent: 1925551 (1933-09-01), Wietzel et al.
patent: 2202901 (1940-06-01), Dreyfus
patent: 2266359 (1941-12-01), Edwards et al.
patent: 2605212 (1952-07-01), Lobban
patent: 2654695 (1953-10-01), Gilbert et al.

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