Lubricating oil base oil and preparation method thereof

A technology of lubricating base oil and tungoleic acid, which is applied in the preparation of carboxylate, carboxylate, lubricating composition, etc., can solve the problems of high pour point and limited use, achieve low pour point and increase the degree of branching , the effect of high flash point

Active Publication Date: 2020-05-05
CHINA PETROLEUM & CHEM CORP +1
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the raw materials for the preparation of dimer acid, there is a partial straight chain connection in the car

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Lubricating oil base oil and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0029] Example 1

[0030] (1) Use commercial tung oil acid (iodine value 150g / 100g, acid value 180mgKOH / g). Take 100g of commercial tungoleic acid into a 250mL four-necked flask, and add 0.5g of tert-butyl hydroquinone at the same time, stirring at 300rpm, nitrogen purge for 30min, heating to 220℃ for 4h, stopping heating, and separating by molecular distillation For purification, the distillation pressure of the molecular distillation apparatus is less than or equal to 2Pa, and the distillation temperature is 170°C. The unreacted monoacid is removed, and the product mainly composed of dimer acid is obtained.

[0031] (2) Take 55.7g of the above-mentioned dimer acid-based product and 39.1g of isooctyl alcohol, put them in a 250mL four-necked flask, add 0.668g of p-toluenesulfonic acid as a catalyst, and react at 120°C for 4 hours to obtain the base of lubricant Oil products.

Example Embodiment

[0032] Example 2

[0033] (1) Use commercial tung oil acid (iodine value 150g / 100g, acid value 180mgKOH / g). Take 100g of commercial tungoleic acid into a 250mL four-necked flask, and add 0.5g of tert-butyl hydroquinone at the same time, stirring at 300rpm, nitrogen purge for 30min, heating to 220℃ for 4h, stopping heating, and separating by molecular distillation For purification, the distillation pressure of the molecular distillation apparatus is less than or equal to 2Pa, and the distillation temperature is 170°C. The unreacted monoacid is removed, and the product mainly composed of dimer acid is obtained.

[0034] (2) Take 55.7g of the above-mentioned dimer acid-based product and 39.1g of ethanol, put it in a 250mL four-necked flask, add 0.668g of p-toluenesulfonic acid as a catalyst, and react at 120°C for 4 hours to obtain a lubricating base oil product .

Example Embodiment

[0035] Example 3

[0036] (1) Use commercial tung oil acid (iodine value 150g / 100g, acid value 180mgKOH / g). Take 100g of commercial tungoleic acid into a 250mL four-necked flask, and add 0.5g of tert-butyl hydroquinone at the same time, stirring at 300rpm, nitrogen purge for 30min, heating to 220℃ for 4h, stopping heating, and separating by molecular distillation For purification, the distillation pressure of the molecular distillation apparatus is less than or equal to 2Pa, and the distillation temperature is 170°C. The unreacted monoacid is removed, and the product mainly composed of dimer acid is obtained.

[0037] (2) Take 55.7g of the above-mentioned dimer acid-based product and 39.1g of n-butanol, place them in a 250mL four-necked flask, and add 0.668g of p-toluenesulfonic acid as a catalyst at the same time, react at 120°C for 4h to obtain a lubricant base Oil products.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Acid valueaaaaaaaaaa
Iodine valueaaaaaaaaaa
Login to view more

Abstract

The invention relates to a preparation method of a lubricating oil base oil. The preparation method comprises steps: adopting eleostearic acid as a raw material, carrying out nitrogen purging while stirring in the presence of a polymerization inhibitor, heating to a temperature of 180-230 DEG C, carrying out a reaction, and removing single acid after the reaction to obtain a product; and mixing the product with a monohydric alcohol, and carrying out esterification reaction in the presence of a catalyst to obtain the lubricating oil base oil. The lubricating oil base oil disclosed by the invention is prepared by preparing a dimer acid by taking eleostearic acid as a raw material and then reacting the dimer acid with the monohydric alcohol, and has the advantages of low pour point, high flash point, good lubricity, good bearing capacity and the like.

Description

technical field [0001] The invention belongs to the field of preparation of lubricating oil base oil, and in particular relates to a lubricating oil base oil and a preparation method thereof. Background technique [0002] In recent years, with the development of the economy, the society's demand for vehicle lubricants has grown rapidly. In some special occasions, such as the use of metal processing oil, chain saw oil, outboard two-stroke engine oil and open gear oil, etc. system or disposable circulation system, due to use, leakage, etc., the lubricating oil will inevitably be discharged directly into the environment. Mineral-based lubricating oils have poor biodegradability in the natural environment, accumulate in the environment and cause pollution to the ecological environment. Major oil companies in the world have started to develop environmentally friendly green lubricating oils to replace traditional mineral-based lubricating oils. Base oil is the decisive factor af...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C10M105/36C07C67/08C07C69/602C10N30/06C10N30/04
CPCC10M105/36C07C67/08C07C51/353C10M2207/2825C07C69/602C07C57/13
Inventor 曹长海李澜鹏王宜迪程瑾李秀峥彭绍忠
Owner CHINA PETROLEUM & CHEM CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap