METHOD FOR MAKING A TITANIUM-CONTAINING LUBRICANT ADDITIVE

• US 20090318318A1
• Filed: 06/18/2008
• Published: 12/24/2009
• Est. Priority Date: 06/18/2008
• Status: Active Grant

• Current Assignee: Afton Chemical Corporation
• Original Assignee: Afton Chemical Corporation
• Inventors: GUEVREMONT, Jeffrey M., MATHUR, Naresh C.
• Granted Patent: US 8,008,237 B2
• Time in Patent Office: Days
• US Class Current: 508/165
• CPC Class Codes: C01G 23/047 Titanium dioxide
• CPC Class Codes: C01G 23/053 Producing by wet processes, e.g. hydrolysing titanium salts
• CPC Class Codes: C10M 125/10 Metal oxides, hydroxides, carbonates or bicarbonates
• CPC Class Codes: C10M 139/00 Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing atoms of elements not provided for in groups C10M127/00 - C10M137/00
• CPC Class Codes: C10M 141/12 at least one of them being an organic compound containing atoms of elements not provided for in groups C10M141/02 - C10M141/10
• CPC Class Codes: C10M 2201/062 Oxides; Hydroxides; Carbonates or bicarbonates
• CPC Class Codes: C10M 2215/04 having amino groups bound to acyclic or cycloaliphatic carbon atoms
• CPC Class Codes: C10M 2215/086 Imides
• CPC Class Codes: C10M 2215/28 Amides; Imides
• CPC Class Codes: C10M 2217/043 Mannich bases
• CPC Class Codes: C10M 2227/065 derived from Ti or Zr
• CPC Class Codes: C10N 2010/08 Groups 4 or 14
• CPC Class Codes: C10N 2020/06 Particles of special shape or size
• CPC Class Codes: C10N 2030/06 Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
• CPC Class Codes: C10N 2030/12 Inhibition of corrosion, e.g. anti-rust agents or anti-corrosives
• CPC Class Codes: C10N 2040/25 Internal-combustion engines

Abstract

A method for making a titanium-containing lubricant additive, a lubricant additive concentrate made by the method and a lubricating composition containing the additive concentrate. The method includes reacting titanium alkoxide with water in a reaction medium that includes a dispersant to provide a homogeneous titanium-containing additive product. The additive product made by the method is substantially devoid of acidic components.

Claims

1. A method for making a titanium-containing lubricant additive comprising reacting titanium alkoxide with water in a reaction medium including a dispersant to provide a homogeneous titanium-containing additive product, wherein additive product is substantially devoid of acidic characteristics.

2. The method of claim 1, wherein the dispersant comprises a dispersant selected from the group consisting of hydrocarbyl succinimides, hydrocarbyl amines, and Mannich base dispersants.

3. The method of claim 1, wherein the reaction medium further comprises a C₂-C₅ alkanol.

4. The method of claim 3, wherein the alkanol comprises isopropanol.

5. The method of claim 4, wherein the titanium alkoxide comprises titanium isopropoxide.

6. The method of claim 1, wherein a mole ratio of water to titanium alkoxide in the reaction medium ranges from about 1:

1 to about 2;

1.

7. The method of claim 3, wherein a ratio of alkanol to water in the reaction medium ranges from about 1:

10 to about 10;

1.

8. The method of claim 1, wherein the reaction medium has a temperature ranging from about 25°

to about 140°

C.

9. A non-acidic titanium-containing additive product made by the process of claim 1.

10. A lubricating composition comprising the additive product of claim 9 and an oil of lubricating viscosity.

11. A lubricant additive concentrate comprising the additive product of claim 1 wherein the concentrate comprises from about 0.01 to about 2.0 weight percent titanium on a metal basis from the titanium-containing product.

12. A lubricant additive concentrate comprising the additive product of claim 9 wherein the concentrate comprises from about 0.1 to about 1.0 weight percent titanium on a metal basis from the titanium-containing product.

13. A lubricating composition comprising the additive product of claim 9 and an oil of lubricating viscosity, wherein the lubricating composition comprises from about 10 to about 1000 ppm titanium on a metal basis.

14. A lubricating composition comprising the additive product of claim 9 and an oil of lubricating viscosity, wherein the lubricating composition comprises from about 50 to about 500 ppm titanium metal.

15. A titanium additive product for a lubricating oil comprising a titanium product made by a process comprising reacting titanium alkoxide with water in a reaction medium including a dispersant at a temperature ranging from about 25°

to about 140°

C. to provide a homogeneous titanium-containing additive product, wherein additive product in a base oil is no more corrosive than the base oil devoid of the additive product as determined by a high temperature corrosion bench test.

16. The titanium additive product of claim 15, wherein the dispersant comprises a dispersant selected from the group consisting of hydrocarbyl succinimides, hydrocarbyl amines, and Mannich base dispersants.

17. A lubricating oil concentrate comprising the additive product of claim 15, wherein the concentrate is substantially devoid of visible particles.

18. A fully formulated lubricant comprising the lubricating oil concentrate of claim 17.