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Method for preparing polyether lubricating oil by modified plant oil

A technology for modifying vegetable oil and lubricating oil, which is applied in lubricating compositions, petroleum industry, base materials, etc.

Inactive Publication Date: 2013-09-25
HEFEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the preparation of polyether lubricating oil from vegetable oil has not been reported in domestic and foreign literature.

Method used

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  • Method for preparing polyether lubricating oil by modified plant oil
  • Method for preparing polyether lubricating oil by modified plant oil
  • Method for preparing polyether lubricating oil by modified plant oil

Examples

Experimental program
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Effect test

Embodiment 1

[0029] 1. Add 20g of dried rapeseed oil into the reactor, then drop 5-6g of potassium hydroxide methanol solution with a mass concentration of 6-8%, control the dropping time at about 20min, and react at 60°C after dropping 1h, wash to neutrality after reaction finishes, obtain transesterification product FME after removing solvent;

[0030] 2. Add hydrogen peroxide solution dropwise to the mixture of 10g FME, 15ml acetic acid and 0.5g catalyst strong acidic cation exchange resin at 60-70°C, control the dropping time at about 2h, where H 2 o 2 The molar ratio with acetic acid is 1.2:1, keep warm for 4 hours after dripping, wash until neutral after the reaction, and get EFME after removing the solvent;

[0031] 3. Add 0.396g of boron trifluoride ether as a catalyst to the reactor equipped with 15g EFME and 300ml of dichloromethane at 0°C under the protection of nitrogen. The adding time is controlled at about 2 minutes, and the reaction is carried out at 0°C after the drop is ...

Embodiment 2

[0035] 1. Add 20g of dried rapeseed oil into the reactor, then drop 5-6g of potassium hydroxide methanol solution with a mass concentration of 6-8%, control the dropping time at about 20min, and react at 60°C after dropping 1h, wash to neutrality after reaction finishes, obtain transesterification product FME after removing solvent;

[0036] 2. Add hydrogen peroxide solution dropwise to the mixture of 10g FME, 15ml acetic acid and 0.5g catalyst strong acidic cation exchange resin at 60-70°C, control the dropping time at about 2h, where H 2 o 2 The molar ratio with acetic acid is 1.2:1, keep warm for 4 hours after dripping, wash until neutral after the reaction, and get EFME after removing the solvent;

[0037] 3. Add 0.396g of boron trifluoride ether as a catalyst to the reactor equipped with 15g EFME and 300ml of dichloromethane at 0°C under the protection of nitrogen. The adding time is controlled at about 2 minutes, and the reaction is carried out at 0°C after the drop is ...

Embodiment 3

[0039] 1. Add 20g of dried rapeseed oil into the reactor, then drop 5-6g of potassium hydroxide methanol solution with a mass concentration of 6-8%, control the dropping time at about 20min, and react at 60°C after dropping 1h, wash to neutrality after reaction finishes, obtain transesterification product FME after removing solvent;

[0040] 2. Add hydrogen peroxide solution dropwise to the mixture of 10g FME, 15ml acetic acid and 0.5g catalyst strong acidic cation exchange resin at 60-70°C, control the dropping time at about 2h, where H 2 o 2 The molar ratio with acetic acid is 1.2:1, keep warm for 4 hours after dripping, wash until neutral after the reaction, and get EFME after removing the solvent;

[0041] 3. Add 0.396g of boron trifluoride ether as a catalyst to the reactor equipped with 15g EFME and 300ml of dichloromethane at 0°C under the protection of nitrogen. The adding time is controlled at about 2 minutes, and the reaction is carried out at 0°C after the drop is ...

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Abstract

The invention discloses a method for preparing polyether lubricating oil by modified plant oil. The method comprises the following steps of: performing transesterification on the plant oil and methanol under the action of a catalyst to obtain fatty acid methyl ester, performing reaction on the fatty acid methyl ester and acetic acid under the existence of the catalyst to prepare epoxidized fatty acid methyl ester, and finally performing polymerization on the epoxidized fatty acid methyl ester at the temperature of 0 DEG C under the protection of nitrogen and under the action of the catalyst to prepare the polyether lubricating oil. According to the polyether lubricating oil prepared by the method, the lubricity of the plant oil is improved; a formed oil film is stable, so that the lubricity is durable.

Description

1. Technical field [0001] The invention relates to a method for preparing lubricating oil, in particular to a method for preparing polyether lubricating oil by modifying vegetable oil. 2. Background technology [0002] The increase in world oil consumption and the decrease in reserves have prompted people to look for energy alternatives. In recent years, since various lubricant products will enter the natural environment through steam, leakage or spillage, the pollution of lubricants and environmental health issues have gradually attracted attention, and the development of environmentally friendly lubricants has become a global consensus. Polyether lubricating oils have already been synthesized in the industry, but what they use are polymers of ethylene oxide and propylene oxide groups with alcohol as the initiator. Most of these epoxy compounds come from mineral oil, so we hope to find a green and renewable energy source to replace them. Vegetable oil is a green and renew...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M177/00C10M107/32C08G65/22C11C3/00C11C3/10
Inventor 王文平宋跃锋田健张志强
Owner HEFEI UNIV OF TECH
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