Back to results
US 2019/0001239 A1Published application
Foam control composition for phosphoric acid production
OwnerEder TORRES, Alexsandro BERGERinventors
Life of this patent
Estimating the term…
Abstract
The present invention relates to a composition containing an anionic surfactant based on an alkali salt of sulfosuccinic acid dialkylester to promote the obtention of an inverse microemulsion which is used as foam control composition in a phosphoric acid production medium. The present invention also discloses a process to produce said composition by stirring the components of such a composition to obtain a microemulsion. The invention also aims at a method for controlling foam during the production of phosphoric acid by wet process, avoiding its formation or decreasing its amount.
Claims20
Foam control composition comprising:
- a) at least one anionic surfactant based on an alkali salt of sulfosuccinic acid dialkylester;
- b) at least one C8-C28 linear or branched fatty acid ester;
- c) at least one C8-C28 linear or branched fatty acid and
- d) at least one oxygenated solvent.
1 more element
Dependencies are inferred from the claim text.