C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 53/122 (2006.01) A23K 1/175 (2006.01) C07C 51/41 (2006.01) C07C 53/10 (2006.01)
Patent
CA 2232393
A catalyzed process is disclosed for producing a polyvalent metal C2-C3 carboxylate having the formula M(CH3(CH2)xCOO-)y, wherein M is the polyvalent metal cation that is manganese (Mn+2), cobalt (Co+2), or chromium (Cr+3), x is zero or 1 and y is an integer equal to the cationic charge of M. The polyvalent metal C2-C3 carboxylate is prepared by admixing (i) a dry polyvalent metal compound that is an oxide, hydroxide or carbonate of Mn+2, Co+2 or Cr+3, (ii) an anhydrous C2-C3 carboxylic acid, and (iii) a catalytic agent at a relative molar ratio of about 1:2-10:0.01-3 in the absence of an added solvent or other diluent to form a reaction mixture. The reaction mixture is heated to complete the reaction, remove the produced water and about 80 percent of the unreacted carboxylic acid. The product in residual carboxylic acid is solidified, ground and the product is recovered. The metal carboxylates can be used as biologically available and economical sources of trace metal ions for supplementation in animal diets.
L'invention porte sur un procédé catalysé permettant la production d'un carboxylate C¿2?-C¿3? de métal polyvalent ayant la formule M (CH¿3?(CH¿2?)¿x?COO?-¿)¿y?. Dans cette formule, M représente le cation métallique polyvalent, à savoir manganèse (Mn?+2¿), cobalt (Co?+2¿), ou chrome (Cr?+3¿), x vaut zéro ou 1 et y est un nombre entier égal à la valeur de la charge cationique de M. On obtient ce carboxylate C¿2?-C¿3? de métal polyvalent en mélangeant (i) un composé métallique polyvalent sec, oxyde, hydroxyde ou carbonate de Mn?+2¿, Co?+2¿ ou Cr?+3¿, (ii) un acide carboxylique C¿2?-C¿3? anhydre et (iii) un agent catalytique selon un rapport molaire relatif d'environ 1/2-10/0,01-3, en l'absence d'un solvant ajouté ou d'autre diluant, afin de former un mélange réactif. On chauffe ce dernier afin de faire se terminer la réaction, de retirer l'eau produite et environ 80 % de l'acide carboxylique non réagi. Le produit se trouvant dans l'acide carboxylique résiduel est solidifié, meulé puis extrait. Il est possible d'utiliser ces carboxylates métalliques comme sources, biodisponibles et économiques, d'ions métal sous forme de traces pour compléter des régimes alimentaires pour animaux.
Catron Douglas Howard
Nelson Christopher E.
Fetherstonhaugh & Co.
Kemin Industries Inc.
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