Haarmann & Reimer Gmbh

Miles Inc.

Haarmann & Beimer

Theo G Schroeder

Bhalchandra H Patwardhan

David J Solow

Helmut A Mothes

Disclosed are compositions of particulate citric acid or an alkali metal or alkaline earth metal salt thereof prepared by an improved method and an improved method of preparing a detergent builder composition. The method of preparing particulate citric acid or salts thereof involves spray granulating citric acid or a salt thereof from its partially purified fermentation broth to form granules which are freer flowing and less inclined to fracture than is citric acid or its salts prepared by crystallization techniques which properties render the material prepared by the present method suitable for handling in bulk. The same properties may be imparted to detergent builder compositions by adding detergent builders to the partially purified fermentation broth or by introducing a detergent builder solution into a fluidized bed reactor together with appropriate seed particles to thereby form granules which include such detergent builders. This method may be used advantageously to prepare the detergent builder, tartaric monosuccinate/tartaric disuccinate which is particularly difficult to crystallize, in a dry granular form.

Method for the production of detergent builder formulations utilizing

Disclosed is an improved method for preparing a particulate citric acid or an alkali metal or alkaline earth metal salt thereof. The method involves spray granulating citric acid or a salt thereof from its partially purified fermentation broth to form granules which are freer flowing and less inclined to fracture than is citric acid or its salts prepared by crystallization techniques which properties render the material prepared by the present method suitable for handling in bulk.

Method for the production of granular citric acid and salts thereof

Disclosed is an improved method for preparing a particulate citric acid or an alkali metal alkaline earth metal salt thereof. The method involves spray granulating citric acid or a salt thereof from its partially purified fermentation broth to form granules which are freer flowing and less inclined to fracture than is citric acid or its salts prepared by crystallization techniques which properties render the material prepared by the present method suitable for handling in bulk.

Disclosed is an improved method for preparing a particulate citric acid material. The method involves spray granulating citric acid from its partially purified fermentation broth to form granules which are freer flowing and less inclined to fracture than is citric acid prepared by crystallization techniques which properties render this material suitable for handling in bulk.

Growing community of inventors

Wuppertal, Germany

Theo G Schroeder