The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 05, 1987
Filed:
Sep. 04, 1985
Yuk-Mui Louie, Philadelphia, PA (US);
Fred S Zrinscak, Woodbury Heights, NJ (US);
Mobil Oil Corporation, New York, NY (US);
Abstract
A process for recovering HF catalyst and acid soluble oil from an HF alkylation unit acid stream containing HF and acid soluble oils. The acid stream is charged to a distillation column, wherein free HF acid, and stripping fluid added to the column, are removed as an overhead fraction. A bottoms fraction is removed from this column containing acid soluble oil and some HF. This bottoms fraction is cooled and mixed with a light hydrocarbon, and the mixture is allowed to settle. The mixture separates into an HF-lean acid soluble oil, plus solvent upper phase and an HF-rich acid soluble oil lower phase. The HF-lean phase may be withdrawn from the process as a product or upgraded to improve its quality, permitting recycle of the HF-rich phase with reduced acid soluble oil content, to the alkylation unit.