Method for preparing alpha-olefin synthetic lubricating oil

A technology for synthesizing lubricating oil and olefins, applied in the field of lubricating oil, can solve the problems of low viscosity index and low yield, and achieve the effect of high viscosity index, good performance and high reaction yield

Inactive Publication Date: 2014-04-23
ZHANGJIAGANG LINDA ADMIXTURE FACTORY
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The relative viscosity index of the product obtained by the traditional process is low, and additives need to be added to improve the performance of the product before it can be used, and the yield in the production process is not high

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] 2 mol anhydrous AlCl 3 Add 1mol acetylacetone into the reactor, stir evenly, add 5.3Kg of 1-octene dropwise, and react at a constant temperature of 26-28°C. After the reaction, the product is washed with alkali and water until it is neutral, then left to separate, and then distilled under reduced pressure Remove unreacted monomers to obtain α-olefin synthetic lubricating oil.

[0012] The resulting α-olefin synthetic lubricating oil had a viscosity index of 175 and a freezing point of -42°C.

Embodiment 2

[0014] 2.5mol anhydrous AlCl 3 Add 1mol acetylacetone into the reactor, stir evenly, add 5.6Kg of 1-octene dropwise, and react at a constant temperature of 27-29°C. After the reaction, the product is washed with alkali and water until it is neutral, then left to separate, and then distilled under reduced pressure Remove unreacted monomers to obtain α-olefin synthetic lubricating oil.

[0015] The resulting α-olefin synthetic lubricating oil had a viscosity index of 174 and a freezing point of -43°C.

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
Solidifying pointaaaaaaaaaa
Solidifying pointaaaaaaaaaa
Login to View More

Abstract

The invention discloses a method for preparing alpha-olefin synthetic lubricating oil. The method comprises the following steps: adding anhydrous AlCl3 and acetyl acetone into a reactor, stirring evenly, dropwise adding 1-octene, reacting at a constant temperature, washing with alkaline and water to neutral after the reaction, standing for separation, and carrying out reduced pressure distillation to remove unreacted monomers to obtain the alpha-olefin synthetic lubricating oil. According to the method disclosed by the invention, since 1-octene is selected as the raw material and the AlCl3-acetyl acetone is selected as the catalyst, the reaction yield is high, the viscosity index is high and the performance is good.

Description

technical field [0001] The invention relates to a preparation method of α-olefin synthetic lubricating oil, which belongs to the technical field of lubricating oil. Background technique [0002] Poly-α-olefin synthetic lubricating oil (PAO) has the advantages of wide liquid phase range, good viscosity-temperature performance, low pour point, high viscosity index and small evaporation loss. Therefore, PAO has been generally preferred as the base oil of lubricating oil in many high-grade lubricating oil products. PAO is generally α-olefin (mainly C 8 -C 12 ) is a kind of relatively regular long-chain alkanes obtained by polymerization (mainly trimers, tetramers and pentamers) under the action of a catalyst. It has better performance in various synthetic oils and is cheaper than other synthetic lubricating oils. Low cost and simple production process. [0003] The relative viscosity index of the product obtained by the traditional process is low, and it needs to add additiv...

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): C08F110/14C08F4/14
Inventor钱惠贤
OwnerZHANGJIAGANG LINDA ADMIXTURE FACTORY