Helmut Mothes

US Patent:

52682838, Dec 7, 1993

Filed:

May 12, 1992

Appl. No.:

7/882168

Inventors:

Helmut A. Mothes - Granger IN
Bhalchandra H. Patwardhan - Elkhart IN
Theo G. Schroeder - Wuppertal, DE
David J. Solow - Elkhart IN

Assignee:

Miles Inc. - Elkhart IN

International Classification:

C12P 748
C12R 173
C12R 1685

US Classification:

435144

Abstract:

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.

US Patent:

50454595, Sep 3, 1991

Filed:

Oct 5, 1990

Appl. No.:

7/594548

Inventors:

Helmut A. Mothes - Granger IN
Bhalchandra H. Patwardhan - Elkhart IN
Theo G. Schroeder - Wuppertal, DE
David J. Solow - Elkhart IN

Assignee:

Haarmann & Reimer Corp. - Springfield NJ

International Classification:

C12R 1685
C12R 173
C12P 748

US Classification:

435144

Abstract:

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.

US Patent:

51047993, Apr 14, 1992

Filed:

Apr 29, 1991

Appl. No.:

7/692616

Inventors:

Helmut A. Mothes - Granger IN
Bhalchandra H. Patwardhan - Elkhart IN
Theo G. Schroeder - Wuppertal, DE
David J. Solow - Elkhart IN

Assignee:

Haarmann & Reimer - Springfield NJ

International Classification:

C12P 748
C12R 173
C12R 1685

US Classification:

435144

Abstract:

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.

US Patent:

51496437, Sep 22, 1992

Filed:

Nov 15, 1991

Appl. No.:

7/792667

Inventors:

Helmut A. Mothes - Granger IN
Bhalchandra H. Patwardhan - Elkhart IN
Theo G. Schroeder - Wuppertal, DE
David J. Solow - Elkhart IN

Assignee:

Haarmann & Beimer - Elkhart IN

International Classification:

C12P 748
C12R 173
C12R 1685

US Classification:

435144

Abstract:

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.