Process for removing tar bases from Lurgi tar acid stream

Details Process for removing tar bases from Lurgi tar acid stream Process for removing tar bases from Lurgi tar acid stream

1982-07-14

1984-01-31

Lone, Werren B.

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

568749, 568759, C07C 3774, C07C 3768

Patent

active

044291701

ABSTRACT:
A process is disclosed for purifying the tar acid mixture that is obtained from the Lurgi process of coal gasification. The tar acid is treated with dilute aqueous sulfuric acid solution to form non-volatile tar base salts from the tar base component and to hydrolyze the neutral oil component and then distilling the tar acid component off from the non-volatile tar base salts and the hydrolysis products of the neutral oil component.

REFERENCES:
patent: 2298816 (1942-10-01), Ambler
patent: 2301270 (1942-11-01), Gerlicher
Fisher et al., "Bureau of Mines Report, Dept. of Interior Extraction Methods for Determining Tar Acids and Bases, and Variable Affecting their Accuracy" dated 1937, 5303, pp. 1-34.

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