Organic molybdenum high-temperature lubricating grease and preparation method thereof

A technology of organic molybdenum and lubricating grease, which is applied in the field of lubricating grease, can solve the problems of not being able to maintain the lubrication effect for a long time, equipment downtime, manpower, waste, etc., and achieve the effect of good paste physical form and excellent anti-friction performance

Active Publication Date: 2020-07-10
SHANGHAI JINZHAO ENERGY SAVING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under some extreme conditions such as high temperature and high pressure, because the oil in the frame escapes too quickly, causing dryness, the lubrication effect cannot be maintained for a long time, and frequent replacement of grease is required, resulting in equipment shutdown and manpower waste

Method used

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  • Organic molybdenum high-temperature lubricating grease and preparation method thereof
  • Organic molybdenum high-temperature lubricating grease and preparation method thereof
  • Organic molybdenum high-temperature lubricating grease and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Weigh 1000g of eleostearic acid, 600g of stearyl alcohol, and 50g of melamine and place them in the reaction kettle, slowly add 50g of phosphorus pentasulfide while stirring, after adding phosphorus pentasulfide, fully stir and react for 3 hours at a temperature of 120°C, and cool down to below 100°C When the temperature is lower than 100°C, add 100g of isopropanolamine, mix and stir, and then add it to the homogenization equipment for homogenization. Treat for 1 hour; that is, an organic molybdenum grease composition.

[0039] The above-mentioned organic molybdenum grease composition can be used as a grease as it is.

[0040] The organo-molybdenum grease composition prepared above was subjected to a roller stability test according to SH / T0122:

[0041] project Before rolling After 2 hours of rolling experimental method Dropping point °C 251 251 GB / T4929 Pressure Oil % 0.2 0.2 GB / T392 Penetration 0.1mm 237 237 GB / T269

Embodiment 2

[0043] Weigh 1000 g of eleostearic acid, 600 g of stearyl alcohol, and 30 g of melamine and place them in the reactor, slowly add 30 g of phosphorus pentasulfide while stirring, and after adding phosphorus pentasulfide, fully stir and react for 2 hours at a temperature of 130 ° C, and cool down to below 100 ° C 150g of ammonium phosphomolybdate was added, heated to 150°C, fully reacted for 3 hours, decompressed to remove moisture and ammonia gas; cooled to below 100°C, added with 80g of isopropanolamine, mixed and stirred, and then added to a homogenizer for homogenization. Treat for 1 hour; that is, an organic molybdenum grease composition.

[0044] Weigh 600 g of the organic molybdenum grease composition prepared above, 300 g of castor oil polymaleate, and 100 g of molybdenum disulfide, and heat and stir to about 100 ° C. About an hour, it is an organic molybdenum high temperature grease.

[0045] The preparation method of above-mentioned polyricinoleate maleate:

[0046] ...

Embodiment 3

[0049] Weigh 1000g of eleostearic acid, 550g of stearyl alcohol, and 40g of melamine and place them in the reactor, slowly add 40g of phosphorus pentasulfide while stirring, after adding phosphorus pentasulfide, fully stir and react for 3 hours at a temperature of 120°C, and cool down to below 100°C 160g of ammonium phosphomolybdate was added, heated to 150°C, fully reacted for 3 hours, decompressed to remove moisture and ammonia; cooled to below 100°C, added with 90g of isopropanolamine, mixed and stirred, and then added to a homogenizer for homogenization. Treat for 1 hour; that is, an organic molybdenum grease composition.

[0050] Weigh 500g of organic molybdenum grease composition prepared above, 400g of castor oil polymaleate, 100g of molybdenum disulfide, 10g of antioxidant (Irganox L01), and heat and stir to about 100°C. After 2 hours of stirring time, place Homogenizing in the homogenizing equipment for about 1 hour, it is a kind of organic molybdenum high temperature...

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Abstract

The invention provides an organic molybdenum lubricating grease composition which is characterized by being prepared from the following components shellac eleostearic acid, ammonium phosphomolybdate,melamine, stearyl alcohol, isopropanolamine and phosphorus pentasulfide. The parts by weight of the components are 100 parts of shellac eleostearic acid; 50-60 parts of stearyl alcohol; 15-20 parts ofammonium phosphomolybdate; 8-10 parts of isopropanolamine; 3-5 parts of melamine; and 3-5 parts of phosphorus pentasulfide. The invention further provides organic molybdenum high-temperature lubricating grease containing the organic molybdenum lubricating grease composition, and the organic molybdenum high-temperature lubricating grease is characterized by being prepared from the following components in percentage by weight: 50-60% of the organic molybdenum lubricating grease composition; 30-40% of polymaleic castor oil ester; and 5-15% of molybdenum disulfide. The organic molybdenum lubricating grease composition prepared by adopting the preparation method is an extreme-pressure anti-wear additive containing Mo-P-N-S and excellent in anti-friction performance and can ensure that the paste physical form of the lubricating grease is good. The prepared organic molybdenum high-temperature lubricating grease is applied to lubrication of bearings, guide rails and other parts, and the service life of the bearings and the guide rails is prolonged.

Description

technical field [0001] The invention belongs to the technical field of lubricating grease, and particularly relates to an organic molybdenum high-temperature lubricating grease and a preparation method thereof. Background technique [0002] The traditional grease processing technology is: animal and vegetable oils or fatty acids are added with inorganic bases (such as sodium hydroxide, calcium hydroxide, lithium hydroxide, aluminum hydroxide, barium hydroxide, etc.) to prepare metal soaps as thickeners or organic or Inorganic thickener, which is formed by adding mineral oil or synthetic oil for processing and thickening. It is mainly stored in the framework of thickener, and stored in thickener under the action of motion pressure and temperature. The oil in the chemical agent escapes, plays a lubricating role, and exhibits paste-like physical properties under normal temperature and pressure. Under some extreme conditions such as high temperature and high pressure, the oil i...

Claims

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Application Information

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IPC IPC(8): C10M159/12C10M169/00C08F122/20C10N30/06C10N40/02C10N50/10
CPCC10M159/123C10M169/00C08F122/20C10M2201/066C10M2215/082C10M2223/045C10M2207/023C10M2209/086C10M2223/043C10M2223/04C10M2223/08
Inventor 张乃庆吴悠蒋宁吴启东丁金波
Owner SHANGHAI JINZHAO ENERGY SAVING TECH
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