エネルギー効率の良い金属キレートの無溶媒製造方法

Japanese Patent JP7167057

B2

The invention relates to a method for producing, amongst other things, amino-acid and/or hydroxycarboxylic-acid metal chelates, a solvent-free mixture of at least one metal oxide, metal hydroxide, metal carbonate or oxalate, and the solid organic acid is subjected to intensive mechanical stress. According to the invention, this is done in that the reaction partners are introduced in particle form into a fluid stream of a fluid-bed countercurrent mill operating without grinding elements, wherein mechanical activation of at least one of the reaction partners is effected by collision processes within a reaction chamber formed in a region of the fluid stream, and a solid body reaction to form the metal chelate is triggered. The novel method operates very energy-efficiently and with a high specific yield. It leads to a product having compact particles in the small, single-digit micrometer range having a comparatively narrow particle size distribution and a large surface. The product is homogenous and very pure. Thermal loading or decomposition of the organic chelate ligands, in particular of the amino acids, is likewise avoided, as are contaminants from milling and grinding element abrasion.

Kauffman, Dieter Yi.
Namisuro, Yang Shee.
Bubble Chinek, Birgit
Floresque, romance

JP2019556258A

November 08, 2022

January 08, 2018

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Technische Universitat Clausthal

C07C227/18; A23K20/142; A23K20/158; A23K20/20; A23K20/24; C07C229/76; C07C319/20; C07C323/58; C07F1/08; C07F3/06

JP2008526689A
JP2015504911A

US20140037960

Masatoshi Kurata
Nobuhisa Nogawa
Tadashi Inoue
Shigeru Iino
Naoki Kono
Sanae Kaneko

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