B - Operations – Transporting – 01 – J
Patent
B - Operations, Transporting
01
J
B01J 2/02 (2006.01) A61K 31/7016 (2006.01) B01D 1/18 (2006.01) B01J 2/30 (2006.01) C07H 3/04 (2006.01) C13K 13/00 (2006.01)
Patent
CA 2645917
The present invention relates to a method of preparing a non-hygroscopic pulverulent composition, comprising a step for the spray drying, without an atomization support, of an aqueous solution containing at least one initially hygroscopic product, having a glass transition temperature ranging from 10°C to 110oC, and a cryogenic fluid, especially a food-grade cryogenic fluid, or a mixture of cryogenic fluids, particularly chosen from liquid air, nitrogen and carbon dioxide, said aqueous solution being obtained by dissolving said cryogenic fluid in an initial aqueous solution containing said initially hygroscopic product.
La présente invention concerne un procédé de préparation d'une composition pulvérulente non hygroscopique comprenant une étape de séchage par atomisation, sans support d' atomisation, d'une solution aqueuse contenant au moins un produit initialement hygroscopique, présentant une température de transition vitreuse de 10°C à 110oC, et un fluide cryogénique, notamment un fluide cryogénique alimentaire, ou un mélange de fluides cryogéniques, notamment choisi parmi l'anhydride carbonique, l'azote, l'air liquide, ladite solution aqueuse étant obtenue par dissolution dudit fluide cryogénique dans une solution aqueuse initiale contenant ledit produit initialement hygroscopique.
Buisson Pierre
Chesse Claude
Goudreau Gage Dubuc
Innov'ia
LandOfFree
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