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:
Mar. 03, 1981
Filed:
Jun. 07, 1979
Applicant:
Inventors:
Giovanni Manara, San Donato Milanese, IT;
Vittorio Fattore, San Donato Milanese, IT;
Marco Taramasso, San Donato Milanese, IT;
Bruno Notari, San Donato Milanese, IT;
Assignee:
Snamprogetti S.p.A., Milan, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
585640 ; 585733 ;
Abstract
A process is disclosed for preparing tertiary olefins having a high degree of purity and in good yields starting from tertiary ethers such as methyltert.butyl ether and in which the improvement comprises using an extremely efficient catalyst system which consists of a crystalline silica having a high specific surface area and which has been modified by an oxide of a metallic cation having an at least partially amphoteric character. Such catalyst may be, if appropriate, accompanied by an alumina-modified silica as an adjuvant co-catalyst.