Degussa Aktiengesellschaft

Evonik Operations Gmbh

Degussa Gmbh

Evonik Degussa Gmbh

Waldemar Hessberger

Harald Jakob

Ralph Overdick

Juergen Lattich

Hans Joachim Hasselbach

Lothar Kaiser

Jürgen Lattich

Dominik Egly

The present invention relates to a process for producing a particulate composition containing methionine, methionylmethionine, potassium in the form of potassium salt and ammonium sulfate, and use thereof.

Production method for dipeptide-containing granules

The invention relates to a process for the preparation of coated granular sodium percarbonate having a low TAM value. The preparation is carried out by fluidized-bed spray granulation at a temperature Tin the range from 45 to 75&#xb0; C., and the coating is effected by the spray application of an aqueous solution containing at least one coating component in a fluidized bed at a temperature Tin the range from 35 to 100&#xb0; C. According to the invention, a) after the fluidized-bed spray granulation but before the coating, drying is carried out at Tof greater than T, or b) the fluidized-bed granulation is carried out in at least two steps at T, T. . . T, Tor Tbeing higher than T1, and drying being unnecessary if &#x2154; of the granulate have been formed at T1, or c) drying takes place not after the granulation but after the coating, at T, Tbeing at least 20&#xb0; C. higher than T.

Process for the preparation of coated granular sodium percarbonate, and product obtainable by the process

The invention relates to uncoated and/or coated sodium percarbonate with improved internal stability and storage stability; and, a process that provides uncoated and/or coated sodium percarbonate with improved internal stability and storage stability.

Process for improving the internal stability of sodium percarbonate

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Alzenau, Germany

Waldemar Hessberger