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:
Apr. 22, 1980
Filed:
Feb. 22, 1977
Frank W Skraba, Sweeny, TX (US);
Phillips Petroleum Company, Bartlesville, OK (US);
Abstract
A method and apparatus for recovering HF catalyst from an alkylation unit acid stream containing acid soluble oil wherein a bottoms stream, which contains HF, acid soluble oils and a minor quantity of water, from an HF rerun column are processed. The bottoms mixture is cooled in a heat exchanger to a temperature sufficiently low so as to effect separation of HF from the acid soluble oil with the mixture then being passed to a separating vessel to allow the separation of the HF from the acid soluble oil due to the reduced mutual solubility. A gradient of HF concentration is effected within the separation vessel wherein an HF-rich acid soluble oil mixture is withdrawn as a stream separate from a substantially HF-free acid soluble oil portion which is also recovered as a separate stream.