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Preparation method of high-temperature lubricant

A high-temperature lubricant and chlorine technology, applied in lubricating compositions, additives, petroleum industry, etc., can solve the problem of easy decomposition of mineral lubricating oil, and achieve the effects of high kinematic viscosity, high decomposition temperature and good electrical conductivity

Pending Publication Date: 2021-03-16
江苏聚千新材料科技有限公司
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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 kind of preparation method of high-temperature lubricant, has solved the problem that mineral lubricating oil is easy to decompose mentioned in the background technology

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A preparation method of a high-temperature lubricant, comprising the following steps: 1. Synthesis of 1-chloroacetone: successively add 5 g of calcium carbonate and 15 ml of acetone in a 250 ml three-necked flask, and fully shake it at a heating temperature of 60° C. Mix evenly, install a condenser tube on the top of the three-necked flask, the other side of the condenser tube is connected to a device for absorbing chlorine gas, the chlorine gas is absorbed with 5% sodium hydroxide, and the center of the device is connected with a gas collecting bottle for concentrated sulfuric acid for drying. The other end of the gas collecting bottle is connected to a round bottom flask filled with manganese dioxide, and the upper end of the round bottom flask is connected to a separatory funnel filled with concentrated hydrochloric acid, which decomposes chlorine gas at a high temperature of 80°C, and passes chlorine gas into the three-necked flask three times. After one hour, collec...

Embodiment 2

[0021] A kind of preparation method of high-temperature lubricant, it is characterized in that: comprise the following steps: 1, the synthesis of 1-chloroacetone: add 10g calcium carbonate and 20ml acetone successively in the three-neck flask of 250ml, under heating temperature 60 ℃, fully After shaking, make it mix evenly, install a condenser tube above the three-necked flask, and connect the other side of the condenser tube with a device for absorbing chlorine gas. The chlorine gas is absorbed by sodium hydroxide with a capacity of 5%. Gas collecting bottle, the other end of the gas collecting bottle is connected with a round bottom flask filled with manganese dioxide, and the upper end of the round bottom flask is connected with a separatory funnel filled with concentrated hydrochloric acid, which decomposes chlorine gas at a high temperature of 80°C and sends it to the three-necked flask After 3 hours of passing through the chlorine gas, collect the finished product, filter...

Embodiment 3

[0024] A kind of preparation method of high-temperature lubricant, it is characterized in that: comprise the following steps: 1, the synthesis of 1-chloroacetone: add 15g calcium carbonate and 25ml acetone successively in the three-neck flask of 250ml, under heating temperature 60 ℃, fully After shaking, make it mix evenly, install a condenser tube above the three-necked flask, and connect the other side of the condenser tube with a device for absorbing chlorine gas. The chlorine gas is absorbed by sodium hydroxide with a capacity of 5%. Gas collecting bottle, the other end of the gas collecting bottle is connected with a round bottom flask filled with manganese dioxide, and the upper end of the round bottom flask is connected with a separatory funnel filled with concentrated hydrochloric acid, which decomposes chlorine gas at a high temperature of 80°C and sends it to the three-necked flask After 3 hours of passing through the chlorine gas, collect the finished product, filter...

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Abstract

The invention discloses a preparation method of a high-temperature lubricant. The preparation method comprises the following steps: 1. synthesis of 1-chloroacetone: sequentially adding calcium carbonate and acetone into a three-necked flask, sufficiently oscillating at the heating temperature of 60 DEG C, uniformly mixing, installing a condenser pipe above the three-necked flask, and connecting adevice for absorbing chlorine to the other side of the condenser pipe; absorbing chlorine with sodium hydroxide, collecting a finished product, filtering with diethyl ether to fully change a solid into powder, and filtering to obtain organic powder; and 2, synthesis of 1-methyl-3-ethylene methylene imidazole ammonium chloride ionic liquid: adding N-methyl imidazole and the 1-chloroacetone obtainedin the step 1 into a round-bottom flask, adding toluene into the round-bottom flask, putting the in-situ flask into a constant-temperature oil bath device with a magnetic stirrer, and purifying to obtain the lubricant. According to the prepared lubricant, the lubricant is high in viscosity during high-temperature movement, high in decomposition temperature which can reach 300 DEG C, free of deflagration at the critical decomposition temperature and good in conductivity.

Description

technical field [0001] The invention belongs to the technical field of lubricants, in particular to a preparation method of high-temperature lubricants. Background technique [0002] Today, there are more and more machines that need to work at high temperatures, so people are looking for high-temperature-resistant lubricants everywhere to ensure the sustainable and normal operation of such machines and equipment. Especially in aerospace technology and atomic energy industry, lubricating under ultra-high temperature, ultra-low temperature, ultra-high pressure and other conditions, only lubricating materials with high temperature resistance can achieve good lubricating effect. [0003] However, the mineral oil lubricant used in the past is easy to decompose at high temperature to produce gas and volatile dust, causing fabric pollution and air pollution, and the lubricant needs to be replaced within 1-2 weeks, which increases the cost of use. [0004] Therefore, the present in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D233/58C10M133/46C10N30/02C10N30/06C10N30/08
CPCC07D233/58C10M133/46C10M2215/224
Inventor 姚立强余自萍
Owner 江苏聚千新材料科技有限公司
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