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US 12,570,923 B2Granted
Tuning sulfonation and controlling oleo-furan surfactant compositions
AssigneeSironix Renewables, Inc.
InventorsShawn Eady, Tyler Robison, Michelle Cruz, Trenton Wilke, Sabrina Conrad, Maryam Ansari, Christoph Krumm
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Abstract
Disclosed herein are methods for sulfonation of oleo-furan compounds derived from a furan moiety and either an individual fatty acid or a mixture of fatty acids representative of those yielded from one or more plant oils. Additionally, this disclosure describes tuning sulfonation conditions to produce oleo-furan sulfonate blends which can demonstrate beneficial surfactant characteristics and improvements in various applications.
Claims20
A method comprising:
- providing an oleo-furan compound according to the formula (1):
- and
- sulfonating the provided oleo-furan compound to produce at least two of a first oleo-furan sulfonic acid according to formula (2), a second oleo-furan sulfonic acid according to formula (3), and a third oleo-furan sulfonic acid according to formula (4):
- wherein n is an extended saturated alkyl chain from 1 to 21 carbon atoms in length, and wherein a, b, and c represent mole ratios of the at least two of the first oleo-furan sulfonic acid according to formula (2), the second oleo-furan sulfonic acid according to formula (3), and the third oleo-furan sulfonic acid according to formula (4).
1 more element
A method comprising:
- providing an oleo-methylfuran compound according to the formula (1):
- and
- sulfonating the provided oleo-methylfuran compound to produce at least two of a first oleo-methylfuran sulfonic acid according to formula (2), a second oleo-methylfuran sulfonic acid according to formula (3), and a third oleo-methylfuran sulfonic acid according to formula (4):
- wherein n is an extended saturated alkyl chain from 1 to 21 carbon atoms in length, and wherein a, b, and c represent mole ratios of the at least two of the first oleo-methylfuran sulfonic acid according to formula (2), the second oleo-methylfuran sulfonic acid according to formula (3), and the third oleo-methylfuran sulfonic acid according to formula (4).
1 more element
Dependencies are inferred from the claim text.