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Organic tungsten complexes

一种配合物、有机钨的技术，应用在有机化学、润滑组合物、没有C-金属键的6/16组有机化合物等方向，能够解决未例示含有有机钨配合物的润滑组合物、没有证实形成配合物数据等问题

Inactive Publication Date: 2013-07-17
R T VANDERBILT CO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

US Patent No. 4,846,983 is claimed by WO 3 Process for the synthesis of dithiocarbamates of tungsten, but neither data confirming the formation of the complex nor exemplifying lubricating compositions containing organic tungsten complexes according to embodiments of the present invention

Method used

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Examples

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Embodiment 1

[0089] The organic tungsten complex of the embodiment of the present invention was prepared as follows. 99.84 g of OD-896NT (a fatty derivative of 2-(2-aminoethyl)amino-ethanol, available from R.T. Vanderbilt Co. Inc.) was added to the reaction vessel and stirred at 60°C. To this was added 24.92 g of tungstic acid followed by 25.1 g of a 28.2% ammonium hydroxide solution. The pressure in the reaction vessel was maintained at 1 psi to 2 psi for 30 minutes by controlled gas venting. The reaction was maintained at 60°C for a total of 2.5 hours. The solvent was then removed by slowly applying a vacuum of 30 mm Hg while heating to 120°C to 130°C. The reaction mixture was maintained in this temperature range under vacuum until all the reaction solvent and water were removed. The product was then filtered through celite and recovered to give 61.8 g of an amber oil. Elemental analysis: C=60.4%, H=10.9%, N=3.4%, W=7.5% (with WO 3 meter, ash content = 9.5%).

Embodiment 2

[0091] Organotungsten complexes were prepared as the reaction product of the ammonium salt of tungstic acid with OD-896NT (an aliphatic derivative of 2-(2-aminoethyl)amino-ethanol, available from R.T. Vanderbilt Co. Inc.). The molar ratio of OD-896NT to tungsten is 2:1. The analysis of the amber oil is as follows: elemental analysis: C=63.0%, H=10.8%, N=3.8%, W=9.2% (in WO 3 meter, ash content = 11.7%).

Embodiment 3

[0093] As ammonium salt of tungstic acid and OCD-277 (≥90% 摩尔 Fatty derivatives of 2-(2-aminoethyl)amino-ethanol, ≤10% 摩尔 1-(2-Hydroxyethyl)-2-2-(tall oil alkyl)-2-imidazoline), a reaction product purchased from R.T.Vanderbilt Co.Inc.) to prepare organic tungsten complexes. The molar ratio of OCD-277 to tungsten was 6.5:1. The analysis of gained amber oil is as follows: elemental analysis C=64.2%, H=9.1%, N=3.6%, W=6.0% (in WO 3 , ash content = 7.6%).

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Abstract

The present invention relates to lubricant compositions containing phosphorus and sulfur free organotungstates. The organotungstates are defined as either the reaction product of a mono- or diglyceride and a tungsten source, or as the reaction product of a secondary amine, a fatty acid derivative, and a tungsten source. These compositions exhibit improved antiwear, corrosion, and antioxidancy properties, particularly in low phosphorus and low sulfur environments.

Description

field of invention [0001] The present invention relates to lubricating compositions providing improved antiwear, corrosion and oxidation resistance. These compositions contain organic tungsten complexes, which are defined as the reaction products of monoglycerides or diglycerides with a tungsten source, or as the reaction products of secondary amines, fatty acid derivatives, and a tungsten source. Background of the invention [0002] Zinc dialkyldithiophosphates (ZDDP) have been added to lubricating compositions for decades due to their low cost and ability to act as a multifunctional additive - possessing antiwear and antioxidative properties. Despite the great benefits of these materials, it is well known that sulfur and phosphorus from these compounds volatilize and pass through the exhaust system of an internal combustion engine, where it inevitably contaminates the catalytic converter. [0003] One of the ways to minimize the amount of sulfur and phosphorus reaching th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07F11/00C10M159/18
CPCC10N2230/06C10M2207/1285C07F11/005C10M2215/28C10M141/08C10M133/16C10N2230/10C10N2230/42C10N2230/12C10M2215/064C10M2223/045C10M2215/08C10M2205/0285C10M2215/223C10M141/12C10N2230/43C10N2030/06C10N2030/10C10N2030/12C10N2030/42C10N2030/43C10N2010/12C10N2010/04
Inventor 大卫·宝德里奥
Owner R T VANDERBILT CO INC
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