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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.:

US 5310534 B1

PDFFull Text
Date of Patent:
May. 10, 1994

Filed:

Nov. 26, 1991

Process for dealuminization of the synthetic zeolites of large pores,

Applicant:
Inventors:

Francois Fajula, Montpellier, FR;

Elodie Bourgeat-Lami, Montpellier, FR;

Catherine Zivkov, Orthez, FR;

Thierry Des Courieres, Lyons, FR;

Didier Anglerot, Lons, FR;

Assignee:

Societe Nationale Elf Aquitaine, Paris, FR;

Attorney:

Burgess, Ryan and Wayne

Primary Examiner:

Carl F Dees

Int. Cl.
CPC ...
C01B / ; B01J / ; B01J / ;
U.S. Cl.
CPC ...
423715 ; 423D / ; 423714 ; 502 60 ;
Abstract

A process is provided for dealuminization of zeolites having large pores, the diameter of the aperture of the pores being greater than or equal to about 0.7 nm and the silica/alumina ratio greater than or equal to about 6. The process comprises acid leaching of the raw zeolite containing the structuring agent. The dealuminized zeolites obtained are useful as catalysts for the transformation of hydrocarbons and as selective organophilic adsorbents.

Find Patent Forward Citations

Fajula, Francois. (1994). Process for dealuminization of the synthetic zeolites of large pores, (U.S. Patent No. 5310534). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5310534

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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