Emulsifier particles and methods for making and using same

Patent metadata

Field	Value
Publication number	US-11591452-B2
Application number	US-202016746367-A
Country	US
Kind code	B2
Filing date	Jan 17, 2020
Priority date	Nov 27, 2014
Publication date	Feb 28, 2023
Grant date	Feb 28, 2023

Abstract

Emulsifier particles and methods for making and using same. The emulsifier particles can include an alkali metal salt or an alkaline earth metal salt of a carboxylic acid terminated fatty amine condensate, an alkali metal salt or an alkaline earth metal salt of a modified tall oil, or a blend of an alkali metal salt or an alkaline earth metal salt of a carboxylic acid terminated fatty amine condensate and an alkali metal salt or an alkaline earth metal salt of a modified tall oil. The emulsifier particles can have a BET specific surface area of about 0.3 m2/g to about 1 m2/g. The method for making the emulsifier particles can include reducing a size of an emulsifier solid via a mechanical attrition process to produce the emulsifier particles.

First claim

What is claimed is:

1. A method for making emulsifier particles, the method comprising
distilling a liquid composition to produce a molten emulsifier, wherein the liquid composition comprises (1) an alkali metal salt or an alkaline earth metal salt of a carboxylic acid terminated fatty amine condensate, (2) an alkali metal salt or an alkaline earth metal salt of a modified tall oil, or (3) a blend of an alkali metal salt or an alkaline earth metal salt of a carboxylic acid terminated fatty amine condensate and an alkali metal salt or an alkaline earth metal salt of a modified tall oil;
cooling the molten emulsifier to produce an emulsifier solid; and
reducing a size of an emulsifier solid via a mechanical attrition process to produce emulsifier particles having:
a Brunauer/Emmett/Teller (BET) specific surface area of about 0.3 m 2 /g to about 1 m 2 /g,
a BET pore volume of at least 0.001 cm 3 /g to about 0.005 cm 3 /g,
a BET average pore width of about 50 angstroms to about 200 angstroms,
a bulk density of about 0.3 g/cm 3 to about 0.6 g/cm 3 , and
a weight average particle size of about 5 μm to less than 80 μm.

2. The method of claim 1 , wherein the mechanical attrition process includes at least one of: grinding, milling, or a combination of grinding and milling.

3. The method of claim 1 , wherein the liquid includes water.

4. The method of claim 1 , wherein cooling the molten emulsifier to produce the emulsifier solid comprises contacting the molten emulsifier with a substrate having a temperature less than the melting point of the molten emulsifier.

5. The method of claim 1 , wherein the emulsifier particles comprise an alkali metal salt or an alkaline earth metal salt of a modified tall oil and the method further comprises at least one of:
adding an alkali metal hydroxide, an alkaline earth metal hydroxide, an alkali metal oxide, an alkaline earth metal oxide, or any mixture thereof to a modified tall oil, to produce the alkali metal salt or the alkaline earth metal salt of the modified tall oil;
reacting a tall oil distillate component and an unsaturated polycarboxylic acid, a carboxylic anhydride, or a mixture of an unsaturated polycarboxylic acid and a carboxylic anhydride, to produce the modified tall oil; or
a combination thereof.

6. The method of claim 5 , wherein at least one of:
the tall oil distillate component comprises tall oil fatty acids, tall oil rosin acids, or a mixture thereof;
the unsaturated polycarboxylic acid comprises maleic acid, fumaric acid, phthalic acid, trans-2-hexenedioic acid, trans-3-hexenedioic acid, cis-3-octenedioic acid, cis-4-octenedioic acid, trans-3-octenedioic acid, succinic acid, or any mixture thereof;
the carboxylic anhydride comprises maleic anhydride, succinic anhydride, or a mixture thereof; or
a combination thereof.

7. The method of claim 1 , further comprising reacting a tall oil distillate component with maleic anhydride to produce the modified tall oil, wherein the tall oil distillate component comprises tall oil fatty acids, tall oil rosin acids, or a mixture thereof.

8. The method of claim 1 , wherein the emulsifier particles comprise an alkali metal salt or an alkaline earth metal salt of a carboxylic acid terminated fatty amine condensate, and wherein the method further comprises at least one of:
adding an alkali metal hydroxide, an alkaline earth metal hydroxide, an alkali metal oxide, an alkaline earth metal oxide, or any mixture thereof to a carboxylic acid terminated fatty amine condensate, to produce the alkali metal salt or the alkaline earth metal salt of the carboxylic acid terminated fatty amine condensate;
reacting a fatty acid amine condensate and a polycarboxylic acid, a carboxylic anhydride, or a mixture of a polycarboxylic acid and a carboxylic anhydride, to produce the carboxylic acid terminated fatty amine condensate; or
a combination thereof.

9. The method of claim 1 , wherein the emulsifier particles have a BET specific surface area of about 0.5 m 2 /g to about 1 m 2 /g.

10. The method of claim 1 , wherein the emulsifier particles have:
a bulk density of about 0.4 g/cm 3 to about 0.6 g/cm 3 ; and
a BET average pore width of about 50 angstroms to about 150 angstroms.

11. The method of claim 1 , wherein the emulsifier particles have:
a Krumbein roundness of 0.1 to less than 0.8, and
a Krumbein sphericity of 0.1 to less than 0.8.

12. The method of claim 1 , wherein the emulsifier particles have a BET pore volume of at least 0.0012 cm 3 /g to about 0.002 cm 3 /g.

13. The method of claim 1 , wherein the emulsifier particles have an average particle size of less than 54 μm.

14. The method of claim 1 , wherein the emulsifier particles have:
a BET specific surface area of about 0.5 m 2 /g to about 1 m 2 /g;
a BET pore volume of at least 0.0012 cm 3 /g to about 0.003 cm 3 /g; and
a BET average pore width of about 50 angstroms to about 150 angstroms.

15. The method of claim 1 , wherein the emulsifier particles have:
a BET pore volume of at least 0.0012 cm 3 /g to about 0.002 cm 3 /g; and
a BET average pore width of about 50 angstroms to less than 100 angstroms.

16. The emulsifier particles of claim 1 , wherein the emulsifier particles have:
a BET specific surface area of at least 0.5 m 2 /g to about 1 m 2 /g;
a BET pore volume of at least 0.0012 cm 3 /g to about 0.002 cm 3 /g;
a BET average pore width of about 50 angstroms to less than 100 angstroms;
a weight average particle size of about 5 μm to less than 27 μm; and
an average Krumbein roundness of 0 . 1 to 0 . 7 .

Assignees

• Ingevity South Carolina Llc

Inventors

• Rediger Richard Arthur

Classifications

• B01F23/802

  Cooling the mixture · CPC title

• B01F2101/27

  Mixing ingredients for grinding, polishing or lapping materials · CPC title

• B01F23/804

  Drying the mixture · CPC title

• C08K5/175 Primary

  containing COOH-groups; Esters or salts thereof · CPC title

• B01F23/81

  Grinding the mixture · CPC title