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Novel plant-based lubricating oil additive and preparation method thereof

A lubricating oil additive and a new type of plant technology, applied in the field of lubricating oil, can solve the problems of wear resistance, poor high temperature oxidation resistance, single function, poor wear resistance, etc., and achieve excellent wear resistance, simple reaction steps, and excellent wear resistance Effect

Inactive Publication Date: 2020-04-21
杨初
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a novel plant-based lubricating oil additive and its preparation method for the deficiencies in the prior art of vegetable-based lubricating oil additives with poor wear resistance and high-temperature oxidation resistance. Ring (A), 1,4-bis(potassium dithioformate) piperazine (B) and chlorinated hydrocarbon (D) were used as raw materials, and a new type of vegetable-based lubricating oil additive was obtained through multi-step substitution reactions. While effectively solving the defects of existing plant-based lubricating oil additives such as single function, high temperature oxidation resistance, and poor wear resistance, it also has excellent biodegradability, and the synthetic raw materials are widely environmentally friendly

Method used

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  • Novel plant-based lubricating oil additive and preparation method thereof
  • Novel plant-based lubricating oil additive and preparation method thereof
  • Novel plant-based lubricating oil additive and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0033] Step (1) Dissolve 1mol five-membered heterocyclic structure (A) and 0.5mol 1,4-bis(potassium dithioformate)piperazine (B) in 30mol N,N- In dimethylformamide, stir at 5°C for 3h, continue to react at room temperature for 1h, let stand for 12h, filter with suction, wash with water until clarification; add absolute ethanol / ethyl acetate / acetone to the filter cake in a volume ratio of 1:1 :2 mixed solvent I soaked, decolorized, washed and filtered, and dried at 60°C to obtain a siloxane-modified five-membered heterocyclic structure (IR: 3432cm -1 、2403cm -1 :-SH exists; 1100cm -1 : Five-membered heterocyclic ring exists; 1074cm -1 :-N-N-Existence; 1670cm -1 : piperazine ring-C-N-existence), denoted as C.

[0034] Step (2) Dissolve 1 mol C and 2.2 mol chlorooctane (D) in 60 mol saturated N,N-dimethylformamide containing potassium iodide and anhydrous potassium carbonate, stir mechanically for 40 minutes, heat and reflux in a water bath for 8 hours; cool to room temperat...

specific Embodiment 2-6

[0035] Specific embodiment 2-6, other are with specific embodiment 1, difference is following table:

[0036]

[0037]

[0038] The novel vegetable-based lubricating oil additive obtained in Example 1 was used as the base material of the application example, and it was prepared into a vegetable-based lubricating oil composition.

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Abstract

The invention belongs to the technical field of lubricating oil, and relates to a novel plant-based lubricating oil additive and a preparation method thereof. A five-membered heterocycle (A) containing N and S and 1,4-bis(potassium dithioformate) piperazine (B) and chlorohydrocarbon (D) which are taken as raw materials undergoes a multi-step substitution reaction to obtain the novel plant-based lubricating oil additive. The defects that an existing plant-based lubricating oil additive is single in function and poor in high-temperature oxidation resistance and abrasion resistance are effectively overcome, and the novel plant-based lubricating oil additive has excellent biodegradability, and is wide and environmentally friendly in synthetic raw materials. It can be foreseen that the producthas a wide market space.

Description

technical field [0001] The invention relates to a novel vegetable-based lubricating oil additive and a preparation method thereof. The invention belongs to the technical field of lubricating oil. Background technique [0002] With the advancement of science and technology, mechanical equipment is developing towards high loads. At the same time, in order to meet the needs of the development of mechanical equipment, higher requirements are put forward for the lubricating oil used, which must have better loadability and high temperature oxidation resistance. Due to the harsh requirements of modern processing and production, the wear on the interlaced parts of the parts is intensified, and the lubricating oil added to these parts is gradually unable to keep up with the pace of development in terms of performance. Therefore, research can be carried out in the direction of lubricating oil additives to improve the extreme pressure and anti-wear properties of additives, oxidation r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D285/125C10M135/36C10M169/04C10N30/06C10N30/08C10N30/10
CPCC07D285/125C10M135/36C10M169/04C10M2207/401C10M2207/402C10M2219/106
Inventor 杨初
Owner 杨初