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. 25, 1986
Filed:
Jul. 16, 1984
Applicant:
Inventors:
Hans-Peter Rieck, Hofheim am Taunus, DE;
Hans-Jurgen Kalz, Hofheim am Taunus, DE;
Assignee:
Hoechst Aktiengesellschaft, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01B / ; B01J / ; B01J / ;
U.S. Cl.
CPC ...
502 71 ; 423305 ; 423306 ; 423328 ; 423329 ; 502 77 ; 502214 ;
Abstract
The invention provides a process for the manufacture of a crystalline, phosphorus-containing zeolite of the ZSM-5 type by mixing water, a silicon dioxide source, an alkali metal hydroxide and an aluminum compound, and reacting this mixture at a temperature of from 95.degree. to 230.degree. C. until the zeolite has crystallized, which comprises carrying out the reaction without addition of an organic compound but in the presence of aluminum phosphate. The zeolite obtained has the following molar ratios: