A kind of water-soluble anti-friction additive containing molybdenum and preparation method thereof

A friction-reducing additive and water-soluble technology, applied in additives, lubricating compositions, petroleum industry, etc., can solve problems such as large fluctuations in friction coefficient and cumbersome synthesis process, achieve good water solubility, simple process, and solve friction stability problem effect

Active Publication Date: 2021-03-09
TIANJIN RES INST FOR ADVANCED EQUIP TSINGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In general, the additive synthesis process is cumbersome
In addition, the coefficient of friction of the additive fluctuates greatly, even exceeding that of pure water

Method used

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  • A kind of water-soluble anti-friction additive containing molybdenum and preparation method thereof
  • A kind of water-soluble anti-friction additive containing molybdenum and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Add 0.1 mol (14.9 g) triethanolamine, 0.01 mol 1 hydroxy-benzotriazole (1.35 g), 0.36 g of strong acidic ion exchange resin, 32.5 g of petroleum ether (90-120 ° C) in a three-necked flask, and heat up to 85 °C, 1.83g of ammonium molybdate (dissolved in 10.98g of distilled water) was added dropwise, then the temperature was raised to 128°C, and the reaction was carried out for 6.5h. After the reaction is finished, unreacted materials and catalysts are removed by vacuum filtration, and then the solvent is distilled off to obtain a water-soluble non-sulfur phosphorus-containing molybdenum friction-reducing additive in the form of a brownish-red liquid. Its molybdenum content is 5.50% and nitrogen content is 10.74%.

Embodiment 2

[0033] Add 0.1 mol (14.9 g) triethanolamine, 0.01 mol 1 hydroxy-benzotriazole (1.35 g), 0.36 g of strong acidic ion exchange resin, 32.5 g of petroleum ether (90-120 ° C) in a three-necked flask, and heat up to 85 °C, 1.6g of ammonium molybdate (dissolved in 10g of distilled water) was added dropwise, then the temperature was raised to 128°C, and the reaction was carried out for 6.5h. After the reaction, the unreacted material and catalyst were removed by vacuum filtration, and then the solvent was distilled off to obtain the final product-brownish-red liquid. Its molybdenum content is 4.87% and nitrogen content is 10.80%.

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Abstract

The invention provides a water-soluble molybdenum-containing antifriction additive. The additive is prepared from the following components: triethanolamine, nitrogen heterocyclic rings, an ammonium molybdate water solution, a solvent and a catalyst, wherein the molar mass ratio of the triethanolamine to the nitrogen heterocyclic rings is (8-20):1, the mass concentration of the ammonium molybdate water solution is 1:(6-16), the mass of ammonium molybdate in the ammonium molybdate water solution is 5-15% of the total mass of the triethanolamine, the ammonium molybdate and the nitrogen heterocyclic rings, the ratio of the mass of the solvent to the total mass of the triethanolamine, the ammonium molybdate and the nitrogen heterocyclic rings is 1:(1-3), and the mass of the catalyst is 0.2-2% of the total mass of the triethanolamine, the ammonium molybdate and the nitrogen heterocyclic rings. The additive provided by the invention does not contain sulfur or phosphorus active elements, is environmentally friendly, and does not cause water eutrophication; and in addition, the additive has good water solubility and no dispersion problem.

Description

technical field [0001] The invention belongs to the field of lubricant additives, in particular to a water-soluble molybdenum-containing friction-reducing additive and a preparation method thereof. Background technique [0002] Due to the shortage of energy and the enhancement of environmental protection awareness, coupled with the excellent economy, cooling and safety of water-based lubricating fluid, it has developed rapidly and is widely used in cutting, grinding, rolling, stamping, drawing, etc. Dialing, tapping and other metal processing fields. [0003] However, the disadvantage of water-based lubricating fluids is poor lubricity and anti-rust performance. Therefore, the development of water-soluble lubricating additives with excellent performance is the key to improving the performance of water-based lubricating fluids. This can make the application of water-based lubricating fluid more extensive, which not only saves energy but also is beneficial to environmental pr...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): C10M159/12C10M177/00C10N30/06C10N30/12
CPCC10M159/12C10M177/00C10N2030/06C10N2030/12
Inventor张继平鲁斐戴媛静张晨辉雒建斌
OwnerTIANJIN RES INST FOR ADVANCED EQUIP TSINGHUA UNIV