EP 1325012 A2 20030709 - A COMPOSITION AND METHOD FOR PREPARING AMINO ACID CHELATES FREE OF INTERFERING IONS
Title (en)
A COMPOSITION AND METHOD FOR PREPARING AMINO ACID CHELATES FREE OF INTERFERING IONS
Title (de)
ZUSAMMENSETZUNG UND VERFAHREN ZUR HERSTELLUNG VON AMINOSÄURECHELATEN, DIE FREI VON STÖRENDEN IONEN SIND
Title (fr)
COMPOSITION ET PROCEDE POUR PREPARER DES CHELATES D'ACIDE AMINE EXEMPTS D'IONS INTERFERANTS
Publication
Application
Priority
- US 0131758 W 20011010
- US 68668400 A 20001011
- US 68604600 A 20001011
Abstract (en)
[origin: WO0230948A2] The present invention relates to compositions and methods of preparing amino chelates that are free of interfering ions, and optionally, electrically neutral. In one embodiment, the compsosition 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 metal amino acid chelate and an essentially inert calcium sulfate, and wherein the metal amino acid chelate has a ligand to metal molar ratio from 2:1 to 3:1. Alternatively, the composition can be 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 a calcium sulfate, and wherein the metal amino acid chelate has a ligand to metal molar ratio from 1:1 to 2:1.
IPC 1-7
C07F 1/08; C07F 3/02; C07F 3/06; C07F 13/00; C07F 15/02; C07F 15/06
IPC 8 full level
C07C 227/16 (2006.01); C07C 229/76 (2006.01)
CPC (source: EP)
C07C 227/16 (2013.01)
Designated contracting state (EPC)
AT BE CH FR GB IT LI
DOCDB simple family (publication)
WO 0230948 A2 20020418; WO 0230948 A3 20020718; AU 1310602 A 20020422; CA 2425473 A1 20020418; EP 1325012 A2 20030709; EP 1325012 A4 20050810
DOCDB simple family (application)
US 0131758 W 20011010; AU 1310602 A 20011010; CA 2425473 A 20011010; EP 01981466 A 20011010