04179362 is referenced by 7 patents and cites 5 patents.

Petroleum fractions may be separated into aromatic rich and paraffinic-rich hydrocarbon streams by the use of methanol/water mixtures having at least 10% water by volume. The paraffinic-rich stream is recovered as raffinate and the aromatic-rich as extract. After the extraction step additional water is added to the extract and raffinate streams where it acts as an anti-solvent to effect separation of the hydrocarbon from the solvent. The water and methanol are then separated for example by flash distillation or by using super critical CO.sub.2 as an extraction solvent.

Title
Process for aromatics extraction from a 300.degree.-430.degree. F. boiling range naphtha
Application Number
5/867209
Publication Number
4179362
Application Date
January 5, 1978
Publication Date
December 18, 1979
Inventor
Frederic Leder
1635 Reefview Cir., Corona Del Mar, 92625
CA, US
Daniel J McHugh
204 W. Grant Ave., Edison, 08817
NJ, US
Stephen S Kasegrande
80 Mountain Height Ave., Lincoln Park, 07035
NJ, US
Cyrus A Irani
312 Penn Lear Ct., Monroeville, 15146
PA, US
Agent
Edward H Mazer
James H Callwood
IPC
C10G 21/28
C10G 21/16
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