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Molybdenum modification dispersant, and preparation method and applications thereof

A dispersant and modification technology, applied in chemical instruments and methods, additives, organic chemistry, etc., can solve the problems of high raw material cost, failure to meet environmental protection requirements, poor compatibility of other additives, etc., achieve shortened reaction time, good synergistic resistance Reduce friction and improve fuel economy

Active Publication Date: 2016-12-14
江西福安路润滑材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] Aiming at the problems that the organic molybdenum compound additives in the existing lubricating oil cannot meet the requirements of environmental protection, the compatibility of other additives is poor, and the raw material cost is high, the main purpose of the present invention is to propose a molybdenum modified dispersant and its preparation method

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  • Molybdenum modification dispersant, and preparation method and applications thereof
  • Molybdenum modification dispersant, and preparation method and applications thereof
  • Molybdenum modification dispersant, and preparation method and applications thereof

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preparation example Construction

[0036] Another aspect of the present invention provides a method for preparing a molybdenum-modified dispersant, which includes: mixing an alkyl chain succinic acid and / or an alkyl chain succinic anhydride, a diluent that may or may not be added, and an alcohol amine compound Carry out the first-stage reaction, then remove possible residual unreacted substances, then add molybdenum reagent to carry out the second-stage reaction, and finally obtain the target product through post-treatment.

[0037] Specifically, the preparation method includes: after fully mixing the alkyl chain succinic acid and / or alkyl chain succinic anhydride with the diluent, adding the alkanolamine compound at one time or in batches and optionally adding or not adding The accelerator is used for the first-stage reaction, and then the possible remaining unreacted substances are removed, and then the molybdenum reagent is added at one time or in batches for the second-stage reaction, and finally the target ...

Embodiment 1

[0072] Weigh 10.0 g of polyisobutylene succinic anhydride (PIBSA, 0.01 mol) and add it directly into a 250 ml three-neck flask, then add 3.8 g (0.025 mol) of triethanolamine (TEA) and 50 ml of xylene solvent into the flask. Heating in an oil bath, the temperature rises to 110°C~130°C, use N 2 The generated by-product water was extracted and reacted for 6h. Weigh 4.0g (0.02mol) of ammonium molybdate, dissolve it in 10ml of water to obtain a milky white or colorless solution, put it into a three-necked bottle, and react at 130°C for 6h, the color of the solution is dark green, heat it in an oil bath, and raise the temperature to 160°C , magnetic stirring, xylene or toluene reflux, separate the water in the system with a water separator, and react for 6 hours. The reaction is completed when no water is evaporated. The reaction product is a dark green solution. After the reaction is completed, carry out suction filtration while it is hot. After separation, the solution was dark g...

Embodiment 2

[0074] Weigh 10.0g of polyisobutylene succinic anhydride (PIBSA, 0.01mol) and add it directly into a 250ml three-neck flask, then add 2.7g (0.025mol) of diethanolamine (DEA) and 50ml of toluene solvent into the flask. Heating in an oil bath, the temperature rises to 110°C~130°C, use N 2 The generated by-product water was extracted and reacted for 6h. Weigh 2.9g (0.02mol) of molybdenum trioxide, dissolve it in 10ml of water to obtain a milky white or colorless solution, put it into a three-necked bottle, and react at 130°C for 6h, the color of the solution is dark green, heat it in an oil bath, and raise the temperature to 160°C , magnetic stirring, xylene or toluene reflux, separate the water in the system with a water separator, and react for 6 hours. The reaction is completed when no water is evaporated. The reaction product is a dark green solution. After the reaction is completed, carry out suction filtration while it is hot. After separation, the solution was dark green,...

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Abstract

The invention discloses a molybdenum modification dispersant, and a preparation method and applications thereof. The molybdenum modification dispersant comprises an imine diethanol molybdic acid diester group. The preparation method comprises the following steps: mixing succinic acid with alkyl chains and / or succinic anhydride with alkyl chains, alcohol amine compounds, and / or a diluent, carrying out first-phase reactions, removing residual unreacted substances that may exist, and adding a molybdenum reagent to carry out second phase reactions to obtain the target product. The molybdenum modification dispersant does not contain any sulfur or phosphor. Each molecule comprises an imine diethanol molybdic acid diester group, and thus the molybdenum content of the dispersant can be increased. Moreover, the raw material namely succinic acid with alkyl chains is commercial, the cost is largely reduced; the dispersant can generate a prominent high temperature synergetic antioxidant effect with alkylated diphenylamine antioxidant in lubricating oil; moreover, the dispersant can generate a good synergetic wear-resistant and friction reducing effect with zinc dialkyl dithiophosphate, the using amount of similar additive is reduced, the phosphor content is reduced, and the economy of fuel oil is improved.

Description

technical field [0001] The invention relates to a molybdenum-containing compound lubricating material and a preparation method thereof, in particular to a molybdenum-modified dispersant, a preparation method and application thereof. Background technique [0002] The development trend of automobile engine oil is to extend the oil change interval and improve fuel economy, and the main way to improve fuel economy is to reduce the viscosity of oil and reduce the friction loss between parts, which requires lubricating oil to have excellent anti-friction resistance grinding performance. [0003] In order to improve the anti-friction and anti-wear effect of lubricating oil, a small amount of lubricating oil additives are usually added to the lubricating oil. The traditional lubricating oil additives are sulfur, phosphorus and chlorine type. These materials are selective and corrosive to the surface of the friction pair. , especially lubricating oil additives containing elements su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M139/00C10M141/12C07F11/00C10N30/06C10N40/25
CPCC07F11/005C10M139/00C10M141/12C10M2227/066C10N2030/06C10N2030/54C10N2040/25
Inventor 刘烨蔡涛商旺吉张云潇孙俪文夏骏远曾红玲王声培刘丹刘升高
Owner 江西福安路润滑材料有限公司
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