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Composite lubricating oil suitable for low temperature environment, and preparation method thereof

A low temperature environment, lubricating oil technology, applied in the field of lubricating oil, can solve the problems of inability to decompose, unfavorable anti-friction performance, etc., to achieve the effect of improving solubility, improving low temperature flow effect, and alleviating low temperature cold start

Active Publication Date: 2017-11-10
北京睿曼科技有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In addition, anti-friction and anti-wear agents added to lubricating oil, such as zinc dialkyldithiophosphate, cannot be decomposed at low temperature, which is not conducive to the performance of its anti-friction performance

Method used

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  • Composite lubricating oil suitable for low temperature environment, and preparation method thereof
  • Composite lubricating oil suitable for low temperature environment, and preparation method thereof
  • Composite lubricating oil suitable for low temperature environment, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] 1) Compounding of compound GTL synthetic oil

[0041] Mix GTL100 and GTL250 at a ratio of 11:10, heat to 60°C and stir for 30 minutes.

[0042] 2) Preparation of ester oil

[0043] Mix diisodecyl adipate and polyisobutylene fumarate at a ratio of 3:2, heat to 70°C and stir for 30 minutes.

[0044] 3) Preparation of organic molybdenum concentrate

[0045] Add molybdenum dialkyldithiocarbamate to the ester oil prepared in 2) at a mass ratio of 1:5, heat to 60°C and stir for 15 minutes.

[0046] 4) Preparation of compound lubricating oil

[0047] The ester oil, PAO 6, composite additives that are dissolved with organic molybdenum, PAO 6, composite additives that are made in 3): Afton (Afton) additive company's 8744B, polyhydrogenated styrene isoprene type viscosity index improver: SV261 is added to the composite GTL prepared in 1), the ratio is GTL: PAO: ester oil containing organic molybdenum: composite additive: viscosity index improver = 63 :10:6:13:8 (mass ratio)...

Embodiment 2

[0057] 1) Compounding of compound GTL synthetic oil

[0058] Mix GTL100 and GTL250 at a ratio of 11:10, heat to 60°C and stir for 30 minutes.

[0059] 2) Preparation of ester oil

[0060] Mix diisodecyl adipate and polyisobutylene fumarate at a ratio of 3:2, heat to 70°C and stir for 30 minutes.

[0061] 3) Preparation of organic molybdenum concentrate

[0062] Add molybdenum dialkyldithiophosphate to the ester oil prepared in 2) at a mass ratio of 1:5, heat to 60°C and stir for 15 minutes.

[0063] 4) Preparation of compound lubricating oil

[0064]The organic molybdenum-dissolved ester oil, PAO 6, compound additives obtained in 3): OLOA59094 from Chevron Oronite Company, polyhydrogenated styrene isoprene type viscosity index improver: SV261 are added to 1 Composite GTL prepared in ). The ratio is GTL:PAO:molybdenum-containing ester oil:compound additive:viscosity index improver=63:10:6:13:8.

[0065] The performance of the lubricating oil was detected by the same metho...

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Abstract

The invention provides a composite lubricating oil suitable for low temperature environment, and a preparation method thereof. The composite lubricating oil concretely comprises 60-65 wt% of GTL, 4-6 wt% of ester oil, 8-12 wt% of PAO, 10-15 wt% of a composite additive, 5-10 wt% of a viscosity index improver and 0.5-1.5 wt% of organic molybdenum, and the total amount of above components is 100%. Natural gas synthetic oil is used as base oil, and is compounded with the ester oil and the PAO, the organic molybdenum and other additives are added, and the additives have good solubility in the lubricating oil, and avoid aggregated granules; the lubricating oil has excellent low-temperature fluidity, and makes engines smoothly started at -35 DEG C; the lubricating effect of the lubricating oil is greatly improved; and the lubricating oil can be applied to diesel engine oils of large vehicles in low temperature environment, improves the low-temperature flowing effect, and alleviates the problem of low-temperature cold starting of the vehicles.

Description

technical field [0001] The invention relates to the technical field of lubricating oil, in particular to a composite lubricating oil suitable for low-temperature environments and a preparation method thereof. Background technique [0002] In the severe cold regions of the north, vehicles often start cold at low temperatures. Usually, the engine needs to be heated and ignited for a certain period of time to start. This process takes a lot of time, affects the starting speed, and causes serious damage to engine cylinder liners, piston rings and other components. wear and tear. [0003] This problem is mainly caused by the excessive viscosity of engine oil at low temperature, loss of fluidity, and poor lubricating performance. [0004] Generally, in order to increase the low-temperature flow performance of engine oil, pour point depressants, such as alkylnaphthalene, polymethacrylate, etc., can be added to the oil, or synthetic oil with better low-temperature performance can b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M169/04C10N30/06C10N30/08C10N40/25
CPCC10M169/048C10M2205/04C10M2205/06C10M2207/2825C10M2209/0606C10M2219/068C10M2223/045C10N2030/06C10N2030/08C10N2040/252C10N2010/12
Inventor 许一张伟于鹤龙井致远尹艳丽张梦清贺子腾刘云子
Owner 北京睿曼科技有限公司
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