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Oil additive preparation method

A technology for additives and oil products, applied in the directions of additives, petroleum industry, lubricating compositions, etc., can solve the problem of high dosage, achieve the effects of less additive dosage, simple production and adding methods, and improving extreme pressure and anti-wear properties

Inactive Publication Date: 2006-02-15
SHENYANG HAOWEI CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the patent CN1230209A, a lubricity additive of polyol esters is disclosed, which is a mixture of incompletely reacted alcohol esters. The mixture has certain lubricating properties, but the dosage is too high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The first step is to react phosphorus pentoxide and isooctyl alcohol under normal pressure, stirring, and a reaction temperature of 50-90°C (preferably at a reaction temperature of 60-75°C). The reaction time is 3-5 hours to generate phosphoric acid A mixture of esters; then under normal pressure, stirring, and a reaction temperature of 30-80°C, the phosphate ester mixture is aminated with Primene 81R, and the temperature is kept at 40--60°C. After the amination reaction takes 1-3 hours , Generate the amine salt mixture of phosphoric acid ester; The molar ratio range of the input molar ratio of the above-mentioned reactant is, phosphorus pentoxide: isooctyl alcohol: the mol ratio of Primene 81R=1: 2--4: 2--4.

[0023] The product was added to HVI500 base oil, and the extreme pressure performance was measured by GB / T12583-90 (four-ball method); the product was added to light diesel oil, and the lubricity of diesel oil was measured by ISO 12156-1 (HFRR). The analysis resu...

Embodiment 2

[0027] Use a mixed alcohol of phosphorus pentasulfide and C12-C14, and then react with Primene 81R. Process step, reaction condition and the molar ratio scope of raw material input are the same as embodiment 1. The product was added to HVI500 base oil, and the extreme pressure performance was measured by GB / T12583-90 (four-ball method); the product was added to light diesel oil, and the lubricity of diesel oil was measured by ISO 12156-1 (HFRR). The analysis results are as follows:

[0028] serial number

[0029] serial number

Embodiment 3

[0031] Use phosphorus pentoxide to react with C14 alcohol and then react with Primene 81R. Process step, reaction condition and the molar ratio scope of raw material input are the same as embodiment 1. The product was added to HVI500 base oil, and the extreme pressure performance was measured by GB / T12583-90 (four-ball method); the product was added to light diesel oil, and the lubricity of diesel oil was measured by ISO 12156-1 (HFRR). The analysis results are as follows:

[0032] serial number

[0033] serial number

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PUM

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Abstract

The process for preparing the disclosed oil additive capable of improving lubricating oil's wear resistance and diesel oil's oiliness comprises, reacting phosphorus pentoxide or phosphorus pentasulfide with monohydric alcohol under the conditions of normal pressure, agitating, and a reaction temperature of 50-90 deg C, obtaining the mixture of monobasic and divalent phosphate esters, then carrying out amination reaction between the phosphate ester mixture with amines under the condition of normal pressure, agitating, and a reaction temperature of 30-80 deg. C.

Description

technical field [0001] The invention belongs to the technical field of industrial oil additives, in particular to a method for preparing an oil additive for improving the extreme pressure and anti-wear performance of lubricating oil and the lubricating performance of diesel oil. Background technique [0002] As we all know, lubricating oils that play a major role in mechanical lubrication need to add different additives due to different working conditions. The difference in additive components makes lubricating oils form different types and brands of products, such as widely used gear oils, in the formula It is necessary to add an additive to improve extreme pressure and anti-wear performance, which can ensure that the lubricating oil maintains good lubricating performance under heavy load conditions. In recent years, due to the consideration of improving engine emissions and environmental protection, new diesel standards have been introduced at home and abroad, requiring th...

Claims

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Application Information

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IPC IPC(8): C10M137/08
Inventor 王玉华弁民吴景森
Owner SHENYANG HAOWEI CHEM TECH
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