Preparation and application of high wear resistance and friction reduction molybdenum-containing lubricating oil additive
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A lubricating oil additive and additive technology, applied in the field of mechanical friction lubrication, can solve the problems of unsatisfactory oil solubility, dark color, low molybdenum content, etc., and achieve the effects of reducing loss, easy and safe operation, and low toxicity
Inactive Publication Date: 2021-02-26
TIANJIN UNIVERSITY OF SCIENCE AND TECHNOLOGY
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, domestic similar products contain low molybdenum content, deep color, and unsatisfactory oil solubility,
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preparation example Construction
[0023] Such as figure 1 As shown, the invention discloses a preparation method for preparing a molybdenum-containing high anti-wear lubricating oil additive. Include the following steps:
[0024] Weigh a certain mass of oleic acid or its derivatives, add alcoholamine and sodium molybdate in different mass percentages, and accelerators in different mass percentages, and react at 80-150° C. for 15 hours to obtain the target product. Wherein, the mass percentage of the prepared lubricating oil additive containing molybdenum for high anti-wear and friction reduction in the lubricating oil is 1-10%, preferably 1-3%.
[0025] The above descriptions are only preferred implementation cases of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of the present invention. within the scope of protection.
Embodiment 1
[0028] Add diethanolamine to oleic acid and mix evenly, heat up to 150°C, react for 3-5 hours, cool down to 60-70°C, continue to add diethanolamine and a small amount of lye, react for 5-6 hours to obtain an intermediate product. Then under the protection of nitrogen, heat up, add acidified sodium molybdate aqueous solution (ratio of sodium molybdate to oleic acid diethanolamide is 0.1:1), react for 3-5 hours, and cool naturally at room temperature to obtain the target product.
Embodiment 2
[0030] Add diethanolamine to myristic oleic acid and mix evenly, heat up to 140°C, react for 3-5 hours, cool down to 60-70°C, continue to add diethanolamine and a small amount of lye, react for 5-6 hours to obtain an intermediate product. Then under the protection of nitrogen, the temperature was raised, and the acidified sodium molybdate aqueous solution was added (the molar ratio of sodium molybdate to the intermediate product was 0.3:1), reacted for 3 to 5 hours, and cooled naturally at room temperature to obtain the target product.
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Abstract
The invention relates to the technical field of lubricating oil additives, in particular to preparation and an application of a high wear resistance and friction reduction lubricating oil additive, unsaturated fatty acid, diethanol amine and a molybdenum-containing compound are reacted by the additive, and a finally obtained product contains a molybdenum element and does not contain sulfur, phosphorus and other elements. Organic molybdenum has excellent anti-wear and anti-friction effects, friction and abrasion of the sliding surface are effectively reduced in lubricating oil and lubricating grease, and the loading capacity is improved. The service life of the machine is prolonged and the economic benefit is improved. The invention enumerates the preparation of several high wear resistanceand friction reduction lubricating oil additives, the method is simple and easy to implement, the used substances are environment-friendly, easy to degrade and low in price, and the method is suitable for large-scale industrial production.
Description
technical field [0001] The invention relates to the technical field of mechanical friction lubrication, in particular to a high anti-wear lubricating oil additive. Background technique [0002] Friction is unavoidable in the mechanical operation engineering of modern industry. During the working process of many mechanical parts, the life of the machine is shortened or even scrapped due to excessive wear. The fuel consumed by wear accounts for a large proportion of the total fuel consumption, so the lubricating oil market is increasingly valued by various countries. Improving the performance of lubricants to achieve the effect of anti-wear and anti-friction is of great significance to the national economy. In order to improve the tribological properties of base oils or ordinary lubricating oils, research on lubricating oil additives is also increasingly important. [0003] Molybdenum series additives are one of the extreme pressure and anti-wear lubricating oil additives, an...
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