Preparation method of boronized ashless dispersant
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An ashless dispersant and boronization technology, which can be used in additives, petroleum industry, lubricating compositions, etc., and can solve the problems of low boron content and poor storage stability of boronized ashless dispersants.
Active Publication Date: 2016-10-05
PETROCHINA CO LTD
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[0008] The purpose of the present invention is to develop a boronized ashless dispersant product with high boron content, solve the problems of poor storage stability and low boron content of the boronized ashless dispersant, and improve the low-temperature sludge dispersion performance of the boronized ashless dispersant
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Embodiment 1
[0071] Add 26 parts of tetraethylenepentamine to the reaction bottle, keep the temperature at 10°C, dissolve 10 parts of glycidyl alcohol in 40 parts of ethanol, and add it dropwise to the reaction bottle. After reacting for 5 hours, add 300 parts of 1300 polyisobutylene maleic anhydride, 90 parts of base oil, heat up to 140°C for 6 hours, cool down to 60°C, add 32 parts of boric acid, 32 parts of butanol, react at 110°C for 6 hours, distill off the solvent under reduced pressure, filter Finally, a boronated ashless dispersant is obtained.
Embodiment 2
[0073] Add 26 parts of polyene polyamine to the reaction flask, keep the temperature at 10°C, dissolve 10 parts of glycidyl alcohol in 40 parts of ethanol, and add it dropwise to the reaction flask. After reacting for 5 hours, add 300 parts of 1300 polyisobutylene maleic anhydride, 90 parts of base oil, heat up to 140°C for 6 hours, cool down to 60°C, add 32 parts of boric acid, 32 parts of butanol, react at 110°C for 6 hours, distill off the solvent under reduced pressure, filter Finally, a boronated ashless dispersant is obtained.
Embodiment 3
[0075] Add 26 parts of tetraethylenepentamine to the reaction bottle, keep the temperature at 10°C, dissolve 10 parts of glycidyl alcohol in 40 parts of ethanol, and add it dropwise to the reaction bottle. After reacting for 5 hours, add 300 parts of 1300 polyisobutylene maleic anhydride, 90 parts of base oil, heat up to 140 ° C for 6 hours, cool down to 60 ° C, add 110 parts of tributyl borate, 50 parts of butanol, react at 110 ° C for 6 hours, and remove by vacuum distillation Solvent, filtered to obtain boronated ashless dispersant.
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Abstract
The invention relates to a preparation method of a boronized ashless dispersant. The method comprises the following steps that firstly, an amine compound and epoxy glycidol are subjected to a ring-opening reaction to prepare an intermediate product amine; then, polyisobutene maleix anhydride, basic oil and the intermediate product amine are subjected to a reaction, and polyisobutene succinimide is prepared; finally, the polyisobutene succinimide, a boron compound and a solvent are subjected to a reaction to prepare the boronized ashless dispersant. According to the preparation method, the boron content, the hydrolytic stability and the low-temperature oil sludge dispersion performance of the boronized ashless dispersant are improved, and the product can be used for internal combustion engine oil, gear oil, transmission fluid and other lubricating oil.
Description
technical field [0001] The invention relates to the field of lubricating oil additives, in particular to a preparation method of a boronated ashless dispersant. Background technique [0002] Ashless dispersants have excellent low-temperature sludge dispersion properties and have been widely used in lubricating oils. The commonly used ashless dispersants are polyisobutylene succinimide. With the continuous development of mechanical equipment in the direction of high speed, heavy load and high temperature resistance, the requirements for internal combustion engine oil and industrial lubricating oil are becoming more and more stringent, especially for the oil's anti-oxidation ability, anti-wear and anti-friction performance and detergency and dispersion performance at high temperature , put forward higher requirements. [0003] Boronized ashless dispersants have good high temperature oxidation resistance, anti-wear and anti-friction properties and clean dispersion properties, ...
Claims
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