Lubricant base oil and preparation method thereof

A lubricating oil base oil and silicone oil technology, which is applied in lubricating compositions, chemical instruments and methods, catalyst activation/preparation, etc., can solve the problems of lubricating oil preparation process pollution, poor viscosity-temperature performance, high pour point, etc., and achieve frictional lubrication Excellent performance, low pour point and high flash point

Active Publication Date: 2017-11-07
JIANGSU ZHONGSHENG GAOKE ENVIRONMENTAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] In view of the above problems, the present invention provides a lubricating oil base oil and its preparation method to overcome the high pour point, low flash point, poor visc

Method used

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  • Lubricant base oil and preparation method thereof
  • Lubricant base oil and preparation method thereof
  • Lubricant base oil and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0033] The preparation of embodiment 1 solid catalyst

[0034] Solid catalyst Pt / γ-Al 2 o 3 Preparation: Measure 8g of γ-Al 2 o 3 Carrier and 100mL of distilled water were added to a 250mL four-necked flask, and 6.6mL of chloroplatinic acid solution (12.15mg / mL, 1% Pt / AC) was added during stirring, the temperature was raised to 80°C, stirred for 2h, and then cooled to 40°C , add 4mL of 36% formic acid, stir for 0.5h, drop NaOH solution (4mol / L) to make the solution pH = 8-9, raise the temperature to 80°C, keep the pH constant until the Pt(IV) is completely reduced, filter, and use distilled water Wash several times and dry in an oven at 80°C.

[0035] Preparation of solid catalyst Pt / activated carbon: add powdered activated carbon and 30% HNO in a flask 3 The solution was stirred and refluxed at 90-100° C. for 3 hours, then washed with distilled water until neutral, filtered, and dried to obtain an activated carbon carrier. Measure 8g of the above-mentioned activated car...

Embodiment 2

[0037] Weigh 5mol of MeCl 2 Put SiH and 0.15g of Pt / activated carbon into the blending kettle, stir and heat to 70°C, then add 5 mol (430g) of vinyl acetate, and circulate and reflux through the static mixer for reaction. The flow chart is as follows figure 1 As shown, when the iodine value is 135.2g / 100g, a sample analysis is taken every hour in the reaction process, and when the iodine value is less than 3.0g / 100g, the reaction is stopped, the solid catalyst is separated while it is hot, and the product is distilled under reduced pressure to remove light Components, the lubricating oil base oil is finally obtained, and the yield of this reaction is 95.9% at this time.

Embodiment 3

[0039] Weigh 5mol of EtCl 2 SiH and 3g of Pt / γ-Al 2 o 3 Put it into a blending kettle, stir and heat to 100°C, then add 5mol (430g) of vinyl acetate, and circulate and reflux through a static mixer for reaction, the iodine value is 125.4g / 100g, and samples are taken every hour during the reaction Analysis, when the iodine value is less than 3.0g / 100g, stop the reaction, separate the solid catalyst while it is hot, and then distill the product under reduced pressure to remove the light components, finally obtain the lubricating oil base oil, and the yield of this reaction is 92.5% at this time .

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Abstract

The invention discloses lubricant base oil and a preparation method thereof. The preparation method comprises the following steps: mixing silicone oil with a solid catalyst, stirring and heating to a reaction temperature, adding acetic acid vinyl ester to perform reaction, stopping reaction when an iodine value is smaller than 3.0g/100g, separating the catalyst out and then performing reduced pressure distillation on obtained liquid to obtain the lubricant base oil. The preparation method of the lubricant base oil disclosed by the invention has simple technology, lower cost, low equipment requirement, no acid wastewater generation in a preparation process and no pollution to environment; the utilized platinum solid catalyst has higher catalyzing performance; the lubricant base oil synthesized by the acetic acid vinyl ester and the silicone oil has low pour point, high flash point, good viscosity-temperature property, good oxidation stability and excellent friction lubricating property.

Description

technical field [0001] The invention belongs to the field of lubricating oil preparation, and relates to a lubricating oil base oil and a preparation method thereof, in particular to an ester-modified lubricating oil base oil and a preparation method thereof. Background technique [0002] Lubricating oil is a liquid or semi-solid lubricant used in various automobiles and mechanical equipment to reduce friction and protect mechanical parts and processed parts. It mainly plays the roles of lubrication, auxiliary cooling, rust prevention, cleaning, sealing and buffering. Lubricating oil is composed of base oil and additives, among which base oil is the key component, which determines the basic properties of lubricating oil. [0003] Lubricant base oils can be mainly divided into three categories: mineral base oils, biological base oils and synthetic base oils. Among them, mineral base oil is the most used base oil in traditional lubricating oil, mainly composed of high boiling...

Claims

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Application Information

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IPC IPC(8): C07F7/12C07F7/18C10M105/76C10M107/50C10M177/00B01J23/42B01J37/16C08G77/38C10N20/02C10N30/06
CPCB01J23/42B01J37/16C07F7/122C07F7/1804C07F7/1876C08G77/38C10M105/76C10M107/50C10M177/00C10M2227/045C10M2229/0515C10N2020/01C10N2030/06
Inventor 高琦钱俊峰李为民陈昶乐
Owner JIANGSU ZHONGSHENG GAOKE ENVIRONMENTAL CO LTD
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