IP Library › Granted Patent US 9,144,758
Granted Patent B2
US 9,144,758 · App. 13/106,217 · Granted Sep 29, 2015

Defoaming composition for high acid strength media

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Quick Facts
Patent No.
US 9,144,758
App. No.
13/106,217
Granted
Sep 29, 2015
Kind
B2
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.

Claims (15)

1. 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.

2. The method according to claim 1 , wherein said vegetable oil sources are selected from the group consisting of soya, canola, cottonseed and mixtures thereof.

3. The method of claim 1 , wherein said phospholipid emulsifiers contain in part a naturally derived phosphatidylcholine, a phosphatidylethanolamine, or combinations of said phosphatidylcholine and said phosphatidylethanolamine.

4. The method of claim 3 , wherein the phosphatidylcholine and phosphatidylethanolamine comprise from about 1% to 15% by weight of the defoaming composition.

5. The method of claim 3 , wherein the phosphatidylcholine and phosphatidylethanolamine comprise from about 5% to 10% by weight of the defoaming composition.

6. The method of claim 1 , wherein said composition further comprises an emulsifiable oil phase.

7. The method of claim 6 , wherein the oil phase consists of primarily of C 16 to C 18 saturated and unsaturated fatty acids and fatty ester derivatives.

8. The method of claim 7 , wherein the fatty acids are derived from vegetable oil sources, tall oil sources, or combinations thereof.

9. The method of claim 7 , wherein the fatty esters are derived from vegetable oil sources, tail oil sources, or combinations thereof.

10. The method of claim 7 , wherein the fatty esters are derived from fatty acids and glycerol.

11. The method of claim 1 , wherein said composition comprises a vegetable oil derived soapstock by-product.

12. The method of claim 1 , wherein said composition comprises an acidulated soapstock sludge by-product.

Assignments (8)
CHANGE OF NAME Recorded Dec 14, 2022
From: ARR-MAZ PRODUCTS LP
To: ARRMAZ PRODUCTS INC.
Reel/Frame 062082/0725 →
RELEASE OF SECURITY INTEREST UNDER REEL/FRAME NO. 029529/0862 Recorded Jul 1, 2019
From: ANTARES CAPITAL LP
To: ARR-MAZ PRODUCTS, L.P.
Reel/Frame 049646/0588 →
RELEASE OF SECURITY INTEREST UNDER REEL/FRAME NO. 029538/0691 Recorded Jul 1, 2019
From: ANTARES CAPITAL LP
To: ARR-MAZ CUSTOM CHEMICALS, INC.
Reel/Frame 049645/0931 →
ASSIGNMENT OF INTELLECTUAL PROPERTY SECURITY AGREEMENTS Recorded Jun 29, 2017
From: GENERAL ELECTRIC COMPANY, AS SUCCESSOR IN INTEREST BY MERGER TO GNEERAL ELECTRIC CAPITAL CORPORATION
To: ANTARES CAPITAL LP, AS ADMINISTRATIVE AGENT
Reel/Frame 043061/0511 →
PATENT SECURITY AGREEMENT Recorded Dec 24, 2012
From: ARR-MAZ CUSTOM CHEMICALS, INC.
To: GENERAL ELECTRIC CAPITAL CORPORATION
Reel/Frame 029538/0691 →
RELEASE OF SECURITY INTEREST IN INTELLECTUAL PROPERTY AT REEL/FRAME NO. 027161/0320 Recorded Dec 24, 2012
From: GENERAL ELECTRIC CAPITAL CORPORATION
To: ARR-MAZ PRODUCTS, L.P.; ARR-MAZ CUSTOM CHEMICALS, INC.
Reel/Frame 029538/0945 →
SECURITY AGREEMENT Recorded Nov 2, 2011
From: ARR-MAZ CUSTOM CHEMICALS, INC.; ARR-MAZ PRODUCTS, L.P.
To: GENERAL ELECTRIC CAPITAL CORPORATION, AS AGENT
Reel/Frame 027161/0320 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 12, 2011
From: WANG, GUOXIN; WALKER, JEFFREY; CAMERON, TIMOTHY
To: ARR-MAZ CUSTOM CHEMICALS, INC.
Reel/Frame 026267/0809 →