Pulverulent compositions of a complex between an acid and a metal and method of preparation thereof
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United States of America Patent
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Aug 1, 2017
Grant Date -
Feb 26, 2015
app pub date -
Mar 15, 2013
filing date -
Mar 16, 2012
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Abstract
Pulverulent compositions of a complex between an acid and a metal form an at least partially spherical particle. The acid is selected from 2-hydroxy-4-methyl-thiobutanoic acid (HMTBA), methionine, aspartic acid, the alginic acids, the pectinic acids, and the corresponding anions, in particular 2-hydroxy-4-methyl-thiobutanoate, methioninate, aspartate, the alginates and the pectinates. The metal is divalent or trivalent. The particle has an amorphous fraction the mass of which represents at least 50% of the total mass of the particle. The particle is substantially devoid of uncomplexed acid or anion and of uncomplexed metal or metal cation.
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