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Engine oil compound, engine oil and preparation method thereof

A technology of engine oil and composition, which is applied in the direction of lubricating composition, petroleum industry, base materials, etc., can solve the problems of high price, difficulty in meeting the performance requirements of high-end lubricating oil, high preparation cost, etc., and achieve control of sludge generation, high temperature resistance Excellent oxidation performance and the effect of extending oil drain intervals

Inactive Publication Date: 2017-07-07
JIANGSU OXIRANCHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the preparation cost of polyalphaolefin is very high and the price is expensive. Most of the raw material alpha-olefin is obtained by paraffin cracking, and the prepared polyalphaolefin base oil is difficult to meet the performance requirements of high-end lubricating oil

Method used

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  • Engine oil compound, engine oil and preparation method thereof
  • Engine oil compound, engine oil and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Preparation of Hyperbranched Polyethylene

[0038] Add 72 mg TaCl to a polymerization kettle equipped with a magnetic stirring bar 5 Catalyst, 0.2 mL cocatalyst EtAlCl 2 hexane solution (1 mol / L) and 10 mL of toluene, assemble a polymerization kettle under a nitrogen atmosphere, heat to 45 ° C, and feed ethylene at a constant pressure of 4 MPa. Keep stirring at 45°C for 16 hours, then terminate the reaction with methanol, remove the solvent and ethylene oligomers by vacuum distillation, dissolve the product again with chloroform, and pass through a silica gel column to obtain an oily hyperbranched polyethylene base oil. The weight average molecular weight of the product was 2070, and the degree of branching was 0.30.

[0039] Blending of engine oil

[0040] Take 95.98 parts of hyperbranched polyethylene base oil into the blending kettle, stir and heat to 50°C, add 2 parts of calcium sulfonate, 1 part of bisbutyrimide, 0.5 parts of zinc dialkyl dithiophosphate, poly ...

Embodiment 2

[0042] Preparation of Hyperbranched Polyethylene

[0043] Add 72 mg TaCl to a polymerization kettle equipped with a magnetic stirring bar 5 Catalyst, 0.1 mL cocatalyst Et 3 al 2 Cl 3 hexane solution (1 mol / L) and 10 mL of toluene, assemble a polymerization kettle under a nitrogen atmosphere, heat to 25 ° C, and feed ethylene at a constant pressure of 2 MPa. Keep stirring at 25°C for 16 hours, then terminate the reaction with methanol, remove the solvent and ethylene oligomers by vacuum distillation, dissolve the product again with chloroform, and pass through a silica gel column to obtain an oily hyperbranched polyethylene base oil. The weight average molecular weight of the product was 3870, and the degree of branching was 0.33.

[0044] Blending of engine oil

[0045] Take 96.65 parts of hyperbranched polyethylene base oil into the blending kettle, stir and heat to 50°C, add 1 part of high alkali value alkyl calcium salicylate, 1 part of polyisobutenyl succinimide, dial...

Embodiment 3

[0047] Preparation of Hyperbranched Polyethylene

[0048] Add 72 mg TaCl to a polymerization kettle equipped with a magnetic stirring bar 5 Catalyst, 1.0 mL cocatalyst EtAlCl 2 hexane solution (1 mol / L) and 10 mL of toluene, assemble a polymerization kettle under nitrogen atmosphere, heat to 75 ° C, and feed ethylene at a constant pressure of 5 MPa. Keep stirring at 75°C for 12 hours, then terminate the reaction with methanol, remove the solvent and ethylene oligomers by vacuum distillation, dissolve the product again with chloroform, and pass through a silica gel column to obtain an oily hyperbranched polyethylene base oil. The weight average molecular weight of the product was 1310, and the degree of branching was 0.24.

[0049] Blending of engine oil

[0050] Take 92.47 parts of hyperbranched polyethylene base oil into the blending kettle, stir and heat to 50°C, then add 3 parts of magnesium sulfonate, 3 parts of monosuccinimide, and 0.5 parts of 2,6-di-tert-butylphenol ...

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Abstract

The invention provides an engine oil compound, engine oil and a preparation method thereof. The engine oil compound comprises high-branched polyethylene base oil and an additive, wherein the weight-average molecular weight of the high-branched polyethylene is 500-5000 and the branching degree is 0.15-0.40. An embodiment of the invention selects the high-branched polyethylene as base oil for preparing the engine oil; the oil product has excellent viscosity-temperature property, low-temperature starting performance and high-temperature oxidation resistance; the production of the oily sludge can be effectively controlled; the oil replacement period is prolonged.

Description

technical field [0001] The invention relates to engine oil, in particular to an engine oil with highly branched polyethylene as base oil and a preparation method thereof. Background technique [0002] The core of a car is the engine, and the most important oil in automotive lubricants is engine oil. The development of automobile engine oil is closely related to the manufacturing technology of automobile engine, energy saving and environmental protection requirements. With the increasing maturity of engine manufacturing technology and the increasingly stringent exhaust emission regulations, higher requirements are placed on engine lubricating oil. Automobile engine lubricating oil refers to the liquid lubricant used on the engine to reduce wear and protect machinery. It mainly plays the role of lubrication buffer, cooling and heat dissipation, anti-rust and anti-corrosion. [0003] With the continuous improvement of engine technology, there have been trends such as miniatur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/04C10M107/04C10N30/04C10N20/02C10N20/04C10N30/10C10N40/25C10N30/02
CPCC10M107/04C10M169/044C10M169/048C10M2205/0225C10M2205/026C10M2207/026C10M2207/281C10M2209/084C10M2215/086C10M2217/028C10M2219/044C10M2219/046C10M2223/047C10M2227/02C10M2229/041C10N2020/02C10N2020/04C10N2030/10C10N2040/25
Inventor 朱建民刘兆滨董振鹏顾晓华孙晓旭
Owner JIANGSU OXIRANCHEM CO LTD
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