Back to results
US 9,144,758 B2Granted
Defoaming composition for high acid strength media
AssigneeArr-Maz Custom Chemicals, Inc.
InventorsGuoxin Wang, Jeffrey Walker, Timothy Cameron
Life of this patent
Estimating the term…
Abstract
All natural defoaming compositions useful in high strength acid media utilizing phosphatide emulsifiers that are considerably more effective at reduced application rates than prior art compositions are described.
Claims12
A method for controlling foam in the manufacture of phosphoric acid, the method comprising the steps of:
- combining sulfuric acid and phosphate rock:
- and
- adding a defoaming effective amount of a defoaming composition comprising naturally derived vegetable phospholipid emulsifiers,
- wherein said phospholipid emulsifiers are by-products derived from edible vegetable oil processing.
1 more element
Dependencies are inferred from the claim text.