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:
Jun. 29, 1993
Filed:
Jan. 08, 1992
Applicant:
Inventors:
Eckehart Roland, Hanau, DE;
Peter Kleinschmit, Hanau, DE;
Akos Kiss, Alzenau-Wasserlos, DE;
Frank Heindl, Rodenbach, DE;
Assignee:
Degussa Aktiengesellschaft, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01B / ;
U.S. Cl.
CPC ...
423713 ; 423715 ; 423D / ; 502 79 ;
Abstract
An aqueous suspension of zeolite NaY is treated in with sodium hydroxide solution. The treated zeolite NaY is subsequently dealuminized with silicon tetrachloride.