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:
Jul. 13, 1982
Filed:
Feb. 24, 1981
Applicant:
Inventor:
Hans Strack, Alzenau, DE;
Assignees:
Degussa AG, Frankfurt, DE;
Henkel Kommanditgesellshaft auf Aktien (Henkel KGaA), Duesseldorf, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01B / ;
U.S. Cl.
CPC ...
423329 ; 423328 ;
Abstract
There is produced a crystalline zeolite powder of Type A which can be employed as a phosphate substitute in washing agents by a precipitation reaction by a specific sequence in which there are simultaneously added to water in a container a waterglass solution and a sodium aluminate liquor and subsequently in succession a waterglass solution and then sodium aluminate liquor. The crystalline product has an average particle size of 6.7 to 8.mu. as well as a narrow particle size distribution curve.