Environmentally friendly grease and preparation method thereof

A lubricating grease and environmental protection technology, applied in the field of environmentally friendly lubricating grease and its preparation, can solve the problems of not being able to maintain the lubrication effect for a long time, equipment downtime, manpower waste, etc., and achieve good anti-friction and anti-rust effects, good environmental performance, high Effect of Kinematic Viscosity

Inactive Publication Date: 2018-07-17
SHANGHAI JINZHAO ENERGY SAVING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The traditional grease processing technology is: add animal and vegetable oil or fatty acid to inorganic base (such as sodium hydroxide, calcium hydroxide, lithium hydroxide, aluminum hydroxide, barium hydroxide, etc.) to prepare metal soap as thickener or use organic or Inorganic thickener, which is thickened by adding mineral oil or synthetic oil, is mainly to store mineral oil or synthetic oil in the framework of thickener, and store it in the thickener under the action of motion pressure and temperature. The oil in the thickener escapes and acts as a lubricant. It exhibits paste-like physical properties at normal temperature and pressure. However, after a period of time, the oil will naturally escape and separate from the frame formed by the thickener, which will affect the use. In some Under 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 grease changes are required, resulting in equipment shutdown and manpower waste

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Heat 1500g of beeswax to 100°C, heat filter to remove impurities, add 100g of sodium borate into a stirrer, stir and react at 100°C for 3.5 hours, and it is an environmentally friendly grease precursor.

[0029] Weigh 300g of environmentally friendly grease precursor and 700g of polyricinoleic acid ester and stir at 100°C for 40 minutes to obtain an environmentally friendly grease.

[0030] The preparation method of above-mentioned polyricinoleic acid ester is:

[0031] Step 1: 1000g ricinoleic acid and catalyst (5g sodium perborate) are dropped into the polymerization kettle respectively;

[0032] Step 2: Filling with nitrogen to replace the air in the polymerization kettle;

[0033] Step 3: heat up to 200°C while stirring, and react for 4.5 hours;

[0034] Step 4: removing water under reduced pressure to obtain the product.

[0035] The environment-friendly grease prepared above was subjected to roller stability test according to SH / T0122:

[0036] projec...

Embodiment 2

[0038] Heat 2000g of beeswax to 110°C, heat filter to remove impurities, add 100g of potassium tetraborate into a stirrer, stir and react at 100°C for 3 hours, and it is an environmentally friendly grease precursor.

[0039] Weigh 200g of environmentally friendly grease precursor and 800g of polyricinoleic acid ester and stir at 110°C for 30 minutes to obtain an environmentally friendly grease.

[0040] The preparation method of above-mentioned polyricinoleic acid ester is:

[0041] Step 1: 1000g ricinoleic acid and catalyzer (15g cationic catalytic resin) are dropped into polymerization kettle respectively;

[0042] Step 2: Filling with nitrogen to replace the air in the polymerization kettle;

[0043] Step 3: heat up to 180°C while stirring, and react for 5 hours;

[0044] Step 4: removing water under reduced pressure, removing the cationic catalytic resin, and obtaining the product.

Embodiment 3

[0046] Heat 1000g of beeswax to 90°C, heat filter to remove impurities, add 100g of potassium metaborate into a stirrer, stir and react at 90°C for 5 hours, and it is an environmentally friendly grease precursor.

[0047] Weigh 500g of environmental grease precursor and 500g of polyricinoleic acid ester and stir at 90°C for 60 minutes to obtain an environmentally friendly grease.

[0048] The preparation method of above-mentioned polyricinoleic acid ester is:

[0049] Step 1: 1000g ricinoleic acid and catalyst (4g potassium perborate) are dropped into the polymerization kettle respectively;

[0050] Step 2: Filling with nitrogen to replace the air in the polymerization kettle;

[0051] Step 3: heat up to 220°C while stirring, and react for 4 hours;

[0052] Step 4: removing water under reduced pressure to obtain the product.

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PUM

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Abstract

The invention provides environmentally friendly grease. The grease is characterized in that the grease is prepared from, by weight, 20-50% of environmentally friendly grease precursor and 50-80% of poly castor oil acid ester. According to the grease, beeswax has a pleasant and fragrant smell and can be used for improving a working environment, the beeswax reacts with borate to generate organic borate, the organic borate has better friction reducing and rust resisting effects, the poly castor oil acid ester has higher kinematic viscosity, the poly castor oil acid ester does not easily escape from a grease structural system to affect the service life of the grease, and the components of the grease are obtained from natural raw materials, so that the grease is good in environmental protectionperformance.

Description

technical field [0001] The invention belongs to the technical field of lubricating grease, and in particular relates to an environment-friendly lubricating grease and a preparation method thereof. Background technique [0002] The traditional grease processing technology is: add animal and vegetable oil or fatty acid to inorganic base (such as sodium hydroxide, calcium hydroxide, lithium hydroxide, aluminum hydroxide, barium hydroxide, etc.) to prepare metal soap as thickener or use organic or Inorganic thickener, which is thickened by adding mineral oil or synthetic oil, is mainly to store mineral oil or synthetic oil in the framework of thickener, and store it in the thickener under the action of motion pressure and temperature. The oil in the thickener escapes and acts as a lubricant. It exhibits paste-like physical properties at normal temperature and pressure. However, after a period of time, the oil will naturally escape and separate from the frame formed by the thicke...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M139/00C10M169/04C10N50/10C10N30/06C10N30/12
CPCC10M139/00C10M169/04C10M2209/02C10M2229/00C10N2030/06C10N2030/12C10N2050/10
Inventor 张乃庆吴启东邱秋敏
Owner SHANGHAI JINZHAO ENERGY SAVING TECH
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