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:
Jan. 10, 2017
Filed:
Oct. 11, 2010
Frank Mrzena, Mutterstadt, DE;
Ullrich Menge, Grenzach-Wyhlen, DE;
Michael Schoenherr, Frankenthal, DE;
Thomas Heidenfelder, Hirschberg, DE;
Frank Mrzena, Mutterstadt, DE;
Ullrich Menge, Grenzach-Wyhlen, DE;
Michael Schoenherr, Frankenthal, DE;
Thomas Heidenfelder, Hirschberg, DE;
BASF SE, Ludwigshafen, DE;
Abstract
A process for the preparation of a powder comprising one or more complexing agent salts of the general formula comprises atomizing an aqueous solution comprising the one or more complexing agent salts in the presence of a crystalline fine dust of the same complexing agent salts and a drying step, wherein the concentration of the one or more complexing agent salt is from 10 to 80% by weight, based on the total weight of the aqueous solution, with an upper limit for the average particle diameter of the crystalline fine dust which is lower by at least a factor of 2 than the lower limit of the average particle diameter of the powder obtained after the process, and the fraction of the crystalline fine dust is from 0.1 to 20% by weight, based on the weight of the powder obtained after the process.