Preparation method for antioxidant gasoline engine lubricating oil

A gasoline engine and lubricating oil technology, applied in the field of lubricating oil, can solve the problems of high cost and poor oxidation resistance.

Active Publication Date: 2016-07-27
山东莱克科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the raw material cost of the lubricating oil is relatively high, and the oxidation resistance is not good

Method used

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  • Preparation method for antioxidant gasoline engine lubricating oil
  • Preparation method for antioxidant gasoline engine lubricating oil
  • Preparation method for antioxidant gasoline engine lubricating oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The first step, the modification of rapeseed oil: by weight, get 50 parts of rapeseed oil, 3 parts of diethanolamine, 3 parts of toluene and mix evenly, then dropwise add 1 part of concentrated sulfuric acid, then add 10 parts of toluene, in nitrogen Under protection, the temperature was raised to 130°C for 1 hour. After the reaction, the temperature was lowered to 110°C, 2 parts of boric acid was added, and the temperature was kept for 1 hour. After the end, it was washed with 5wt% NaOH aqueous solution to neutrality, and it was distilled under reduced pressure at 65°C. Steam out toluene to obtain modified rapeseed oil;

[0031] Step 2, in parts by weight, mix 30 parts of mannitol, 20 parts of oxalic acid, 20 parts of oleanolic acid, 3 parts of catalyst, and 80 parts of organic solvent, and then heat up to 70°C for 2 hours of reaction , steaming off the organic solvent to obtain polyol ester;

[0032] In the third step, by weight, 100 parts of the second-class hydroge...

Embodiment 2

[0034]The first step, the modification of rapeseed oil: by weight, get 60 parts of rapeseed oil, 5 parts of diethanolamine, 4 parts of toluene and mix evenly, then dropwise add 3 parts of concentrated sulfuric acid, then add 15 parts of toluene, in nitrogen Under protection, the temperature was raised to 150 ° C for 4 hours. After the reaction, the temperature was lowered to 120 ° C, and 3 parts of boric acid were added, and then kept for 3 hours. Steam out toluene to obtain modified rapeseed oil;

[0035] Step 2, in parts by weight, mix 40 parts of mannitol, 30 parts of oxalic acid, 30 parts of oleanolic acid, 5 parts of catalyst, and 120 parts of organic solvent, and then heat up to 90°C for 4 hours of reaction , steaming off the organic solvent to obtain polyol ester;

[0036] In the 3rd step, by weight, 120 parts of the second-class hydrogenated base oil 500N, 25 parts of modified rapeseed oil, 7 parts of polyol ester, 0.08 part of molybdenum dialkyl dithiocarbamate, anti...

Embodiment 3

[0038] The first step, the modification of rapeseed oil: by weight, get 55 parts of rapeseed oil, 4 parts of diethanolamine, 4 parts of toluene and mix evenly, then dropwise add 2 parts of concentrated sulfuric acid, then add 12 parts of toluene, in nitrogen Under protection, the temperature was raised to 140°C for 3 hours. After the reaction, the temperature was lowered to 114°C, 2 parts of boric acid was added, and the temperature was kept for 2 hours. After the end, it was washed with 5wt% NaOH aqueous solution to neutrality, and it was distilled under reduced pressure at 65°C. Steam out toluene to obtain modified rapeseed oil;

[0039] Step 2, in parts by weight, mix 34 parts of mannitol, 25 parts of oxalic acid, 25 parts of oleanolic acid, 4 parts of catalyst, and 110 parts of organic solvent, and then heat up to 80°C for 3 hours of reaction , steaming off the organic solvent to obtain polyol ester;

[0040] In the 3rd step, by weight, 120 parts of the second-class hydro...

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Abstract

The invention relates to a preparation method for antioxidant gasoline engine lubricating oil and belongs to the technical field of lubricating oil.The method comprises the steps that firstly, rapeseed oil, diethanol amine and methylbenzene are taken and mixed to be uniform, concentrated sulfuric acid is dropwise added, methylbenzene is added, the temperature is raised for a reaction under the protection of nitrogen, cooling is carried out after the reaction is over, boric acid is added, heat preservation is carried out, then an NaOH water solution is used for washing till neutrality, reduced pressure distillation is carried out at the temperature of 65 DEG C to distill out methylbenzene, and modified rapeseed oil is obtained; hydrogenated basic oil, the modified rapeseed oil, polyolester, organic molybdenum, an antioxidant, an anti-rust agent, a pour point reducer, viscosity index improver and a metal passivator are mixed to be uniform and heated, and a lubricating oil composition is obtained.The lubricating oil applied to a gasoline engine has good antioxidant performance mainly by modifying plant oil.

Description

technical field [0001] The invention relates to a preparation method of oxidation-resistant gasoline engine lubricating oil, which belongs to the technical field of lubricating oil. Background technique [0002] Lubricant base oils are mainly divided into two categories: mineral base oils and synthetic base oils. Mineral base oils are widely used, with an amount of more than 95%, but in some applications, products formulated with synthetic base oils must be used, which has led to the rapid development of synthetic base oils. Mineral base oils are refined from crude oil. The main production processes of lubricating oil base oil are: atmospheric and vacuum distillation, solvent deasphalting, solvent refining, solvent dewaxing, clay or hydrogenation supplementary refining. Lubricating oil is a necessary lubricant to ensure the normal operation of the engine. Its specific function is to lubricate the metal parts, reduce the friction between the parts, take away the huge heat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/04C10N30/10C10N40/25C10N10/12
CPCC10M169/044C10M2203/1006C10M2205/04C10M2205/06C10M2205/08C10M2207/281C10M2207/283C10M2207/401C10M2209/062C10M2215/065C10M2215/223C10M2227/066C10N2010/12C10N2030/10C10N2040/255
Inventor 刘应才
Owner 山东莱克科技有限公司
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