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. 26, 1977
Filed:
May. 21, 1975
Applicant:
Inventors:
Carlo Rescalli, San Donato Milanese, IT;
Alessandro Ginnasi, San Donato Milanese, IT;
Assignee:
Snam Progetti S.p.A., San Donato, Milanese, IT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
2606 / ; 2606 / ;
Abstract
The present invention is directed to a process for the separation of butadiene from a stream-cracked C.sub.4 hydrocarbon stream by a sequential etherification of isobutylene and the acetylenic compounds that is followed by a distillation step.