Process for removal of hydroxy- and/or mercapto-substituted hydr

Mineral oils: processes and products – Refining – Sulfur removal

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208263, C10G 2920, C10G 1700

Patent

active

043828558

ABSTRACT:
Removal of hydroxy-substituted and/or mercapto-substituted-hydrocarbons from coal liquids which comprises contacting the coal liquids with an aqueous composition containing an alkanolamine, thereby providing a two-phase mixture, and then separating the mixture into an aqueous extract phase and a naphtha rich raffinate phase.

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Suurpere et al., A Study of the Separation of Phenols from Shale Oil by Means of Ethanolamine Water Solutions, Tr. Tallin. Politekh. Inot, Ser. A (270) 105-111, 1969.
Chemical Abstracts, vol. 58, Item 10788f.

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