Additives for increasing the separation yield of tall oil...

Details Additives for increasing the separation yield of tall oil... Additives for increasing the separation yield of tall oil...

C - Chemistry, Metallurgy

11

B

C11B 13/00 (2006.01)

Patent

CA 2675775

Methods of increasing the yield of tall oil soap from a black liquor are provided. In an embodiment, the method comprises adding a separation aid to the black liquor. The separation aid comprises alkyl alcohol alkoxylates of formula RO[(CH2CHCH3O)x(CH2CH2O)y]M and combinations thereof, wherein R is straight or branched alkyl of about 8 to about 22 carbon atoms; x is 1 to about 20; y is about 20 to about 80 and M is H or an alkali metal.

L'invention concerne des procédés d'augmentation du rendement de savons à l'huile de pin à partir d'une liqueur noire. Dans un mode de réalisation, le procédé comprend l'ajout d'un agent de séparation à la liqueur noire. L'agent de séparation comprend des alcoxylats d'alcool alkylique de formule RO[(CH2CHCH3O)x(CH2CH2O)y]M et des combinaisons de ceux-ci, où R est un groupe alkyle linéaire ou ramifié d'environ 8 à environ 22 atomes de carbone ; x est 1 à environ 20 ; y est environ 20 à environ 80 et M est H ou un métal alcalin.

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