B - Operations – Transporting – 01 – F
Patent
B - Operations, Transporting
01
F
B01F 17/00 (2006.01)
Patent
CA 2379347
This invention addresses methods and compositions for providing alkyl diphenyl oxide sulfonic acid blends at useful viscosities for use in surfactants such as DOWFAX - containing surfactants. The low viscosity alkyl diphenyl oxide sulfonic acid blend is made by admixing a fatty acid having a carboxylic chain length between 1 and 12 (for example, formic acid, acetic acid, propionic acid, butanoic acid, pentanoic acid, valeric acid, hexanoic acid, heptanoic acid, octanoic acid, nonanoic acid, decanoic acid, undecanoic acid, or dodecanoic acid into an alkyl diphenyl oxide sulfonic acid reaction product to provide between 5 weight percentage and 50 weight percentage of fatty acid in the admixture.
L'invention concerne des procédés et des compositions permettant de produire des mélanges d'acide alkyle diphényle oxyde sulfonique à des viscosités utiles, qui permettent d'utiliser lesdits mélanges dans des tensioactifs, tels que des tensioactifs contenant DOWFAX. Les mélanges d'acide alkyle diphényle oxyde sulfonique sont obtenus par mélange d'un acide gras possédant une longueur de chaîne carboxylique comprise entre 1 et 12 (par exemple, l'acide formique, l'acide acétique, l'acide propionique, l'acide butanoïque, l'acide pentanoïque, l'acide valérique, l'acide hexanoïque, l'acide heptanoïque, l'acide octanoïque, l'acide nonanoïque, l'acide décanoïque, l'acide undécanoïque, ou l'acide dodécanoique) dans un produit de réaction d'acide alkyle diphényle oxyde sulfonique, afin que lesdits mélanges contiennent entre 5 et 50 % en poids d'acide gras.
Gallagher Timothy J.
Wallick David E.
Smart & Biggar
The Dow Chemical Company
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