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:
Apr. 13, 2021
Filed:
Dec. 01, 2016
Applicant:
Basf SE, Ludwigshafen am Rhein, DE;
Inventors:
Frank Jaekel, Mannheim, DE;
Michael Klemens Mueller, Hassloch, DE;
Assignee:
BASF SE, Ludwigshafen am Rhein, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C11D 3/33 (2006.01); C11D 11/00 (2006.01); C11D 11/02 (2006.01); C11D 7/32 (2006.01); C11D 3/20 (2006.01); C11D 3/04 (2006.01); C07C 227/40 (2006.01);
U.S. Cl.
CPC ...
C11D 3/33 (2013.01); C07C 227/40 (2013.01); C11D 3/046 (2013.01); C11D 3/2075 (2013.01); C11D 7/3245 (2013.01); C11D 11/0082 (2013.01); C11D 11/02 (2013.01);
Abstract
Process for manufacturing granules of at least one alkali metal salt of aminopolycarboxylic acid (A), comprising the steps of (a) providing an aqueous slurry of alkali metal salt of aminopolycarboxylic acid (A), (b) maintaining said aqueous slurry at a temperature in the range of from 50 to 90° C. over a period of time in the range of from 2 to 180 hours, (c) spray granulating said slurry with a gas inlet temperature of at least 150° C.