Composition and method for preparing amino acid chelate hydroxides free of interfering ions
US6458981B1 · kind B1 · utility
13Cited by
17References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 11, 2000 |
| Grant date | Oct 1, 2002 |
| Priority date | — |
| Expiry date | Oct 11, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C227/16
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to compositions and methods of preparing amino acid chelates that are essentially free of interfering ions. The composition is prepared by reacting in an aqueous solution, a calcium oxide and/or hydroxide, an amino acid, and a soluble metal sulfate salt at a ratio sufficient to allow substantially all of the ions present in solution to react forming a positively charged metal amino acid chelate having a hydroxide counter-ion, and calcium sulfate, and wherein the metal amino acid chelate has a ligand to metal molar ratio from 1:1 to 2:1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.