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:
Sep. 26, 1978
Filed:
Jul. 05, 1977
George B Fozzard, Bartlesville, OK (US);
Phillips Petroleum Company, Bartlesville, OK (US);
Abstract
An olefinically unsaturated mononitrile is reacted with a monadduct of an olefinically unsaturated mononitrile and an olefinically unsaturated hydrocarbon compound to produce a dinitrile product and undesired compounds having higher boiling points than the dinitrile product. The undesired compounds are separated from the dinitrile product and subjected to distillation to produce a light cut and a heavy cut thereof. The light cut is then subjected to pyrolysis conditions to decompose at least a portion thereof to olefinically unsaturated mononitrile, olefinically unsaturated hydrocarbon compound, and monoadduct, which can be recovered and recycled to the dinitrile synthesis.