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. 23, 2004
Filed:
Oct. 22, 2001
Applicant:
Inventors:
Grigore Pop, Bucuresti, RO;
Rodica Ganea, Bucuresti, RO;
Doina Ivanescu, Bucuresti, RO;
Rodica Boeru, Bucuresti, RO;
Gheorghe Ignatescu, Bucuresti, RO;
Ruxandra Birjega, Bucuresti, RO;
Assignee:
Casale Chemicals SA, Lugano-Besso, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 1/20 ;
U.S. Cl.
CPC ...
C07C 1/20 ;
Abstract
Methanol is converted in light molecular olefins C -C with 93-100% degree of transformation and more than 90% selectivity in which more than 80% are ethylene and propylene upon a microspherical catalyst based on SAPO-34 zeolite, with continuous reaction-regeneration in a fluidized bed reactor-regenerator system. Ethylene/propylene ratio is changed in relatively large limits 0.69-1.36, by the modification of reaction temperature and space velocity of the feed.