Patent ID: 6638539
Filing Date: 2003-10-28
Classification: A23K,A61K,A61P

Abstract:
A method of preparing a trace element solution, said method consisting essentially of the steps of:(a) preparing a single solution comprising more than one EDTA-complex as a sodium salt in a single continuous process by suspending either disodium EDTA in water or suspending EDTA acid in water with sodium hydroxide, and adding a metal compound selected from the group consisting of metal oxides, metal hydroxides and metal carbonates to the EDTA solution to form the EDTA-complex; and (b) adding sodium selenite to the solution of EDTA-complexes to form the trace element solution in which the molar ratio of selenium in the form of sodium selenite to the metal compounds to the EDTA complexes varies between 1:4.8:4.8 and 1:19:19.