The present invention relates to a method for the preparation of a new metal lactate powdery product and to the resulting product itself with new properties. The metal lactate powder of the present invention is made via spray-drying and has a higher flowability, is less sticky and dusty, has an improved dissolution rate and is very suited for tabletting purposes. The invention is also directed to product applications in which said spray-dried metal lactate product may be applied, wherein the metal is selected from zinc and magnesium.
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(2009/10/09)
Kinetic Parameters of Thermal Dehydration and Decomposition from Thermoanalytical Curves of Zinc dl-Lactate
Zinc dl-lactate trihydrate undergoes dehydration followed by single step decomposition to ZnO when heated at the rate of 1/6 K s-1 in air. Kinetic parameters of the two steps have been approximated employing Freeman-Carroll, Horowitz-Metzger, Coast-Redfern, Fuoss, Karkhanavala-Dharwadkar and Zsako methods. The latter four methods furnished more consistent values. Both the steps follow Avrami-Erofeev laws.