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Biodegradable lubricants

A biodegradable and lubricant technology, used in the field of synthetic ester lubricants, can solve the problems of lubricants accumulated on the water surface and cannot be used in environmentally sensitive applications.

Inactive Publication Date: 2006-08-30
CHEMTURA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These greases often contain calcium borate, making these systems unusable in environmentally sensitive applications
[0008] Various known lubricants are available with biodegradable properties, but leaks still result in lubricant pooling on the water surface

Method used

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  • Biodegradable lubricants
  • Biodegradable lubricants

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] The preparation method comprises the following steps:

[0040] 1) Add all of the overbased calcium sulfonate to the kettle and heat with stirring to bring the temperature of the mixture to 160-185°F (71.1-85.0°C).

[0041] 2) Add 35-45% of PE-C to the kettle 5-10 Esters and water equivalent to 3-5% of the total feed. Stir and allow the temperature of the mixture to return to 160-185°F (71.1-85.0°C).

[0042] 3) Add all linear alkylbenzene sulfonic acid dissolved in all isopropanol.

[0043] 4) 10-15 minutes after the above three components are mixed into the kettle, add all the acetic acid.

[0044] 5) Continue heating slowly (to 210-215°F (98.9-101.7°C) over 30-60 minutes) with agitation, then begin full heating.

[0045] 6) When the temperature of the mixture reaches 235-250°F (112.8-121.1°C), if the mixture has begun to thicken, add Tech-PE-C 5-10 Esters (about 20% of the total).

[0046] 7) When the temperature of the mixture reaches 235-250°F (112.8-12...

Embodiment 2

[0054] test description

[0055] According to the OECD test, the biodegradability of oil is 69.2%.

Embodiment 3

[0058] Preparation:

[0059] 1) Add all of the overbased calcium sulfonate to the kettle and heat with stirring to bring the temperature of the mixture to 160-185°F (71.1-85.0°C).

[0060] 2) Add 35-45% of the total amount of DiPE-C to the kettle 5 C 8 / 10 ester and add water until it reaches 3-5% of the total dosage. With stirring, allow the temperature of the mixture to return to 160-185°F (71.1-85.0°C).

[0061] 3) Add all linear alkylbenzene sulfonic acid dissolved in all isopropanol.

[0062] 4) 10-15 minutes after the above three components are mixed into the kettle, add all the acetic acid.

[0063] 5) Continue to heat slowly while stirring (heat to 210-215°F (98.9-101.7°C) over 30-60 minutes), then begin to heat thoroughly.

[0064] 6) When the temperature of the mixture reaches 235-250°F (112.8-121.1°C), if the mixture has begun to thicken, add DiPE-C 5 C 8 / 10 Esters (about 20% of the total).

[0065] 7) When the temperature of the mixture reaches 235-25...

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Abstract

Lubricant composition based on biodegradable base oils such as polyol esters or polyalkylene glycols, thickeners based on calcium sulfonate and antiwear additives of natural phospholipids such as lecithin, the composition is used in the environment Sensitive applications may be used in marine applications when the specific gravity at 60°F (15.6°C) is greater than 1.0. Thickeners may include linear alkylbenzene sulfonic acids, acetic and 12-hydroxystearic acids and calcium carbonate solid film lubricants. When the lubricant is dispersed into water, the lubricant sinks to avoid the formation of surface gloss, and the lubricant undergoes biodegradation when sinking, so it is a lubricant that protects the water ecological environment.

Description

Background of the invention [0001] The present invention relates to biodegradable lubricants, and more particularly to semi-fluid oil compositions comprising synthetic or natural base oils and thickener systems and antiwear agents, wherein the base oils include esters and polyols, thickeners Thickener system comprising natural phospholipids with extended properties, the composition is designed for use in environmentally sensitive applications, the composition has a specific gravity greater than or equal to 1.0, for offshore, inland, coastal waterways, water purification and wastewater treatment in application. [0002] There is an ongoing need for biodegradable lubricants. Lubricants for bearings and other marine applications, as well as two-stroke engines, are particularly desirous of being biodegradable. These engines are typically small gasoline engines used in recreational vehicles such as jet skis, jet skis, snowmobiles, and lawn equipment. Therefore, all these applica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/00
CPCC10M2207/1285C10N2220/10C10M2201/062C10M2223/10C10N2250/10C10N2220/032C10N2230/64C10M169/00C10M2207/2835C10M2207/1216C10N2270/00C10M2219/0466C10M2209/1033C10M2219/0413C10M2207/0206C10N2020/017C10N2020/081C10N2030/64C10N2070/00C10N2050/10
Inventor 约翰·M.·库罗斯基佐勒菲卡尔·艾哈迈德·塔系尔
Owner CHEMTURA CORP