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:
Jan. 31, 1978
Filed:
Aug. 12, 1976
Francesco Ancillotti, San Donato Milanese, IT;
Gianni Oriani, Milan, IT;
Ermanno Pescarollo, Milan, IT;
Snamprogetti S.p.A., Milan, IT;
Abstract
Methyl tert-butyl ether of high purity is prepared by reacting methanol with isobutylene in the presence of an acid ion exchange resin in two stages by feeding methanol and isobutylene mixed with other hydrocarbons to the respective members of a pair of interconnected reactors so that the quantity of alcohol present in one of the reactors is in excess of the stoichiometric equivalent of the quantity of isobutylene therein, while the quantity of isobutylene present in the other reactor is in excess of the stoichiometric equivalent of the quantity of methanol therein, and the methyl tert-butyl ether so formed is recovered through distillation.