Engine lubricating oil and preparation method thereof

A lubricating oil and engine technology, applied in the field of lubricating oil, can solve the problems of short oil change mileage, large water and soil pollution, poor shear resistance, etc., and achieve the effect of slight wear, long oil change mileage, and environmental friendliness.

Inactive Publication Date: 2017-11-07
广州康尔克润滑油有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Currently commonly used lubricating oil has the following disadvantages: excessive phosphorus, high sulfur, great water and soil pollution, and conflicts with the harmonious development of the ecological environment
Insufficient alkali value ret

Method used

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  • Engine lubricating oil and preparation method thereof
  • Engine lubricating oil and preparation method thereof
  • Engine lubricating oil and preparation method thereof

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Experimental program
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Effect test

Embodiment 1-5 and comparative example 1-2

[0072] A preparation method of engine lubricating oil, step 1) raw materials are prepared according to the weight ratio shown in Table 1;

[0073] Step 2) Add VHVI 250N base oil, heat up to 45°C, then add polyol ester, polyα-olefin, alkylnaphthalene, and compounding agent in sequence, and heat up to 55°C at a constant temperature;

[0074] Step 3) Then add organic molybdenum salt, then add calcium salicylate, magnesium sulfonate and boric acid ester in sequence, and stir evenly at a constant temperature of 55°C to obtain lubricating oil for more than 3 hours.

[0075]During the preparation process, the moisture content is strictly controlled to be no more than traces: the micro-content of moisture in the product is tested according to the GB / T 260-1977 (2004) experimental specification. The lubricating oil is subjected to oil change mileage test, old oil analysis and engine wear test, and the test results are listed in Table 2-Table 8.

Embodiment 6

[0107] The invention provides a kind of engine lubricating oil, is made up of following composition by its weight part:

[0108] GTL250N 35.2%;

[0109] Polyalphaolefin PAO4 16.5%;

[0110] Polyalphaolefin PAO150 10.9%;

[0111] Compounding agent Chevron OLOA59110 15%;

[0112] Calcium Salicylate 1.6%;

[0113] Magnesium sulfonate 0.65%;

[0114] Molybdenum salt 0.3%;

[0115] Borate 2.5%;

[0116] Alkylated Naphthalene 7.6%

[0117] Polyol ester 11.75%;

[0118] Among them, the performance grade of Chevron OLOA59110 is CI-4+, and the viscosity quality is 10W-40

[0119] Among them, the kinematic viscosity (KV) of GTL250N at 100°C is 7.6mm 2 / s;

[0120] Low temperature dynamic viscosity (-30°C CCS) is 4020mPa.S.

[0121] The preparation method is:

[0122] Step 1) raw materials are prepared according to weight ratio;

[0123] Step 2) Add VHVI 250N base oil, raise the temperature to 45°C, then add polyol ester, polyα-olefin, alkylnaphthalene, compounding agent in ...

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Abstract

The invention discloses engine lubricating oil and a preparation method thereof. The engine lubricating oil is prepared from components in percentage by weight as follows: 34%-38% of VHVI 250N base oil, 16%-19% of poly-alpha-olefin PAO4, 10%-11% of poly-alpha-olefin PAO150, 14.5%-15.5% of a complexing agent, 1.5%-1.7% of calcium salicylate, 0.25%-0.35% of organic molybdenum salt, 0.6%-0.7% of magnesium sulfonate, 0.24%-0.26% of borate, 7.4%-7.7% of alkyl naphthalene and 10%-13% of polyol ester, wherein the complexing agent is Chevron OLOA59110. The engine lubricating oil is environment-friendly, has slight engine wear degree and has long oil change mileage.

Description

technical field [0001] The invention belongs to the field of lubricating oil, in particular to an engine lubricating oil and a preparation method thereof. Background technique [0002] Lubricating oil is a liquid or semi-solid lubricant used in various types of automobiles and mechanical equipment to reduce friction and protect machinery and processed parts. It mainly plays the role of lubrication, cleaning and dispersion, auxiliary cooling, rust prevention, cleaning, sealing and buffering, etc. . [0003] At present, the commonly used lubricating oil has the following disadvantages: excessive phosphorus, high sulfur, great water and soil pollution, and conflicts with the harmonious development of the ecological environment. Insufficient alkali value maintenance capacity and short oil change mileage are not conducive to improving social and economic benefits. The OCP viscosity index improver is used, which has poor shear resistance and is difficult to achieve environmental...

Claims

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Application Information

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IPC IPC(8): C10M169/04C10N40/25C10N30/06C10N30/10C10N30/02
CPCC10M169/045C10M2203/06C10M2203/1025C10M2205/0285C10M2207/144C10M2207/283C10M2219/044C10M2227/061C10M2227/066C10N2030/02C10N2030/06C10N2030/10C10N2030/64C10N2030/72C10N2040/252C10N2020/02C10N2010/04
Inventor 李跃翔
Owner 广州康尔克润滑油有限公司
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