Process for producing a lubricant from an epoxy-triglyceride

Patent metadata

Field	Value
Publication number	US-9593287-B2
Application number	US-201514729128-A
Country	US
Kind code	B2
Filing date	Jun 3, 2015
Priority date	Jun 9, 2014
Publication date	Mar 14, 2017
Grant date	Mar 14, 2017

Abstract

A process for producing a lubricant from an epoxy-triglyceride comprising treating the epoxy-triglyceride with an esterifying agent in the presence of a heterogeneous catalyst under conditions to produce the lubricant is disclosed.

First claim

We claim:

1. A process for producing a lubricant from an epoxy-triglyceride, the process comprising:
a) treating the epoxy-triglyceride with an esterifying agent in the presence of a heterogeneous catalyst under conditions to produce the lubricant, wherein the heterogeneous catalyst comprises a titanium-substituted silica catalyst.

2. The process of claim 1 , wherein the esterifying agent comprises a C 1 to C 6 alkyl acid anhydride.

3. The process of claim 1 , wherein the esterifying agent comprises a carboxylic acid.

4. The process of claim 1 , wherein the esterifying agent comprises a carboxylic acid selected from the group consisting of acetic acid, succinic acid, maleic acid, and glutaric acid.

5. The process of claim 2 , wherein the esterifying agent comprises acetic anhydride.

6. The process of claim 5 , wherein the acetic anhydride is used at about 1.5 wt % to about 4 wt % of the epoxy triglyceride.

7. The process of claim 1 , wherein the titanium-substituted silica catalyst has an Si/Ti ratio of at most about 80.

8. The process of claim 1 , wherein the heterogeneous catalyst comprises a sulfated titanium-substituted silica catalyst.

9. The process of claim 1 , wherein the heterogeneous catalyst comprises sulfated Ti-SBA-15.

10. The process of claim 9 , wherein the sulfated Ti-SBA-15 has a Si/Ti ratio of about 10.

11. The process of claim 1 , wherein the heterogeneous catalyst comprises at least one of Ti-SBA-15 and sulfated Ti-SBA-15.

12. The process of claim 1 , wherein about 5% to about 20% catalyst is present by weight with respect to a weight of the epoxy-triglyceride.

13. The process of claim 1 , further comprising filtering a product of a) to recover the heterogeneous catalyst.

14. The process of claim 1 , further comprising agitating the epoxy-triglyceride, esterifying agent, and heterogeneous catalyst at a speed of at least about 600 rpm.

15. The process of claim 1 , further comprising agitating the epoxy-triglyceride, esterifying agent, and heterogeneous catalyst at a speed of at least about 1000 rpm.

16. The process of claim 1 , further comprising carrying out a) at a reaction temperature of about 100 degrees Celsius to about 140 degrees Celsius.

17. The process of claim 1 , further comprising carrying out a) at a reaction temperature of about 128 degrees Celsius to about 132 degrees Celsius.

Assignees

• Univ Saskatchewan

Inventors

• Dalai Ajay Kumar
• Sharma Rajesh Vishnudev

Classifications

• C10M177/00 Primary

  Special methods of preparation of lubricating compositions; Chemical modification by after-treatment of components or of the whole of a lubricating composition, not covered by other classes · CPC title

• C10M105/36 Primary

  of polycarboxylic acids · CPC title

• C11C3/08

  with fatty acids · CPC title

• C10M105/42

  Complex esters, i.e. compounds containing at least three esterified carboxyl groups and derived from the combination of at least three different types of the following five types of compound: monohydroxy compounds, polyhydroxy compounds, monocarboxylic acids, polycarboxylic acids and hydroxy carboxylic acids · CPC title