Solvent extraction of aromatic compounds using alkylsulfoxide solvents
AssigneeUop LLC
InventorsPaul R. Kurek, Dusan J. Engel, Richard L. Fergin
Life of this patent
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Abstract
Dialkyldisulfinyl-, dialkyldisulfonyl- or alkylsulfinylalkylsulfonylalkanes in which the alkyl portion of the compound contains from 1 to about 10 carbon atoms and the alkane portion of the radical contains from about 3 to about 30 carbon atoms may be used as extraction solvents in liquid/liquid extraction processes whereby aromatic compounds may be separated from a mixture of aromatic compounds and other hydrocarbons.
Claims21
A process for the solvent extraction of an aromatic compound from a mixture of said aromatic compound and other hydrocarbons which comprises treating said mixture with a solvent selected from the group consisting of compounds having the generic formulae:
- ##STR3## in which R and R' are alkyl radicals containing from about 1 to 10 carbon atoms and n is an integer of from 3 to about 30 carbon atoms at extraction conditions, and recovering the purified aromatic compound.
Dependencies are inferred from the claim text.