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Biodegradable bentonite lubricating grease composition and preparation method thereof

A technology of bentonite lubricating grease and lubricating grease composition, which is applied in the field of lubricating grease, can solve the problems of being unable to meet the urgent needs of human beings to protect the environment, poor biodegradability, and high ecotoxicity, and achieve high cost performance, stable product quality, and good market value Effect

Active Publication Date: 2014-01-08
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, compared with vegetable oils, mineral oils have serious defects such as poor biodegradability, high ecotoxicity, and great environmental pollution, and cannot meet the urgent needs of human beings to protect the environment.

Method used

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  • Biodegradable bentonite lubricating grease composition and preparation method thereof
  • Biodegradable bentonite lubricating grease composition and preparation method thereof
  • Biodegradable bentonite lubricating grease composition and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0020] Take 1000g of base oil (trihydroxypropane ester with a viscosity of 30mm at 40°C) 2 / s, the viscosity index is 120) into the reaction kettle, then add 110g of bentonite (baragel10) into the reaction kettle, stir slowly and heat to 60°C, add 10.5g of auxiliary dispersant (acetone) and stir rapidly, and keep the temperature at 20 minute. Heat the material to 100°C, keep the temperature constant for 0.5 hours, add 500g of base oil, and raise the temperature to 160°C, keep the temperature constant for 0.5 hours, add 500g of quench oil base oil, drop the temperature to 80°C, add 2.1g of antioxidant (T501), and keep the temperature for 10 Minutes, carry out post-processing after stirring, the performance of the lubricating grease that the present invention's technological formula makes is listed in table 1

[0021] Table 1

[0022]

[0023]

[0024] It can be known from Table 1 that the grease of the present invention has the characteristics of no dropping point of be...

example 2

[0027] 1000g of base oil (pentaerythritol ester with a viscosity of 100mm at 40°C 2 / s, the viscosity index is 160) into the reactor, then add 300g of bentonite (baragel10) into the reactor, stir slowly and heat to 80°C, add 32g of auxiliary dispersant (acetone) and stir quickly, and keep the temperature for 50 minutes. Heat the material to 110°C, keep the temperature constant for 1 hour, add 500g of base oil, and raise the temperature to 180°C, keep the temperature constant for 0.5 hours, add 500g of quench oil base oil, drop the temperature to 90°C, add 11.5g of antioxidant (T501), and keep the temperature for 10 Minutes, carry out post-processing after stirring, the performance of the lubricating grease that the technological formula of the present invention makes is listed in Table 2

[0028] Table 2

[0029]

[0030] It can be seen from Table 2 that the grease of the present invention has the characteristics of no dropping point of bentonite grease and is biodegradabl...

example 3

[0033] Add 1500g of base oil (trihydroxypropane ester) into the reaction kettle, then add 700g of bentonite (NYKON77) into the reaction kettle, stir slowly and heat to 80°C, add 50g of auxiliary dispersant (ethanol) and stir quickly, and keep the temperature at 20 minute. Heat the material to 110°C, keep the temperature constant for 0.5 hours, add 200g of base oil, and raise the temperature to 170°C, add 300g of quenching oil base oil, drop the temperature to 100°C, add 25g of antioxidant (rosemary), keep the temperature for 20 minutes, Carry out aftertreatment after stirring evenly, the lubricating grease performance that the present invention's technological formula makes is listed in table 3

[0034] table 3

[0035]

[0036]

[0037] From the data in Table 3, it can be seen that the grease of the present invention has the characteristics of no dropping point of bentonite grease and is biodegradable.

[0038] The test items of this example are only the general items...

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Abstract

The present invention provides a biodegradable bentonite lubricating grease composition comprising the following components: in percentage, 70-90% of base oil, 5-28% of a thickener, 0.5-2% of an assistant dispersant agent and 0.1-1% of an antioxidant. Due to selection and use of the base oil and the thickener with good compatibility as well as the proper raw material ratio, the lubricating grease has good high and low temperature performances, may not drip down in a dripping point test process, and can satisfy lubrication of moving parts within a wide temperature range. The lubricating grease product is special in that the lubricating grease has biodegradability. The lubricating grease can be quickly decomposed into environmental harmless substances when used in equipment in an environmentally sensitive area or in working. The formula raw materials of the lubricating grease are general petrochemical products, and are appropriate in prices, and the processed product has a high performance cost ratio and good market value.

Description

technical field [0001] The invention belongs to the technical field of lubricating grease, in particular to a biodegradable bentonite lubricating grease and a preparation method thereof. Background technique [0002] Humans have a long history of using lubricants. Vegetable oil is the earliest biodegradable lubricant used by human beings, but vegetable oil is easy to spoil and deteriorate, and its application range is greatly limited. With the development of the machinery industry, mineral oils with relatively good thermal stability, hydrolytic stability and low-temperature fluidity have become the focus of attention. Due to the continuous development of the machinery industry, the requirements for the quality and performance of oil products are becoming more and more stringent, which has promoted the rapid development of the additive industry in the past 20 years. However, compared with vegetable oil, mineral oil has serious defects such as poor biodegradability, high eco...

Claims

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Application Information

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IPC IPC(8): C10M169/02C10M113/16C10N20/02C10N50/10
Inventor 李素吴宝杰高艳青赵文峰张广辽张洪滨
Owner CHINA PETROLEUM & CHEM CORP
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