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:
Jun. 17, 1986
Filed:
Nov. 26, 1984
Haruhisa Yamamoto, Yokosuka, JP;
Kin-ichi Okumura, Takaoka, JP;
Nippon Zeon Co. Ltd., Tokyo, JP;
Abstract
A process for producing butadiene which comprises (1) a reaction step of forming butadiene by gas-phase catalytic oxidative dehydrogenation of n-butene, (2) a cooling step of cooling the resulting gas discharged from the reaction step (1) to remove trace amounts of high boiling by-products contained in the resulting gas, (3) an aldehyde removal step of removing small amounts of aldehydes contained in the cooled gas discharged from the cooling step (2), (4) a compression step of compressing the gas discharged from the aldehyde removal step (3), and (5) a C.sub.4 component recovery step of recovering a C.sub.4 component containing butadiene and other C.sub.4 hydrocarbons from the compressed gas discharged from the compression step (4).