C - Chemistry – Metallurgy – 07 – H
Patent
C - Chemistry, Metallurgy
07
H
C07H 13/06 (2006.01) A23D 9/007 (2006.01) A23D 9/013 (2006.01) A23L 1/308 (2006.01) C07H 15/04 (2006.01)
Patent
CA 2277171
Processes for treating a polyol fatty acid polyester comprise feeding an unrefined polyol fatty acid polyester containing impurities and soap, and a wash solution into a mixing vessel and dispersing the contents to form a mixture. The treated mixture is allowed to settle and separate into a first phase comprising treated polyol fatty acid polyester and a second phase comprising the wash solution, soap and impurities. A treated polyol fatty acid polyester is produced by the processes described herein. Impurities soluble in the wash solution, such as color bodies, and the like are among the impurities which can be removed by the processes of the present invention. Chelating agents can be included in the wash solution to aid in the removal of impurities such as trace metals.
Procédés servant à traiter un polyester d'acide gras de polyol et consistant à introduire un polyester d'acide gras de polyol non raffiné, du savon et une solution de lavage dans un récipient de mélange et à disperser le contenu afin de constituer un mélange. On laisse le mélange traité reposer et se séparer en une première phase composée de polyester d'acide gras de polyol traité et en une deuxième phase composée de la solution de lavage, de savon et d'impuretés. Ces procédés permettent d'obtenir un polyester d'acide gras de polyol traité. Ils permettent également de supprimer les impuretés solubles contenues dans la solution de lavage, telles que, par exemple, des corps colorés. La solution de lavage peut contenir des agents chélatants contribuant à enlever des impuretés, telles que des métaux à l'état de traces.
Howie John Keeney
Kenneally Corey James
Sarama Robert Joseph
Sebastian Clay Reginald
Dimock Stratton Llp
The Procter & Gamble Company
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