Preparation of metal gluconates

A metal gluconate is prepared from a supersaturated solution of the gluconate in an aqueous solution having a pH between about 4 and about 7, the degree of supersaturation with respect to the metal gluconate being of at least about 1.3, by introducing seed crystals into the solution and removing wat...

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Bibliographic Details
Main Authors NURMI, JUHA V, HEIKKILA, HEIKKI O
Format Patent
LanguageEnglish
French
German
Published 27.01.1988
Subjects
ACYCLIC OR CARBOCYCLIC COMPOUNDS
CHEMISTRY
METALLURGY
ORGANIC CHEMISTRY
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Summary:A metal gluconate is prepared from a supersaturated solution of the gluconate in an aqueous solution having a pH between about 4 and about 7, the degree of supersaturation with respect to the metal gluconate being of at least about 1.3, by introducing seed crystals into the solution and removing water at a temperature in excess of 50 DEG C to crystallize the dissolved metal gluconate, while maintaining the supersaturation. The resulting crystals are agitated to further crystallize dissolved metal gluconate and the crystallized gluconate is then recovered.
Bibliography:Application Number: EP19870306312