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Preparation method of high-alkali vulcanized alkylphenate

A technology of sulfurized alkylphenate and alkylphenol, which is applied in the petroleum industry, additives, lubricating compositions, etc., can solve the problems that do not involve the high-temperature detergency of sulfurized alkylphenate calcium, and achieve the effect of excellent high-temperature detergency

Active Publication Date: 2014-04-16
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no introduction to further improving the high-temperature detergency of sulfurized alkyl phenate calcium, because sulfurized high-basic value sulfurized alkyl phenate calcium is an important metal detergent, and its high-temperature detergency directly determines the quality of lubricating oil formulations. Performance

Method used

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  • Preparation method of high-alkali vulcanized alkylphenate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Embodiment 1 (methanol solution handles three times, adopts two kinds of demulsifiers each time)

[0051] In a 500ml three-necked flask equipped with a temperature control system and electric stirring, add 70 grams of dodecylphenol, 75 grams of 150SN neutral oil, stir for 15 minutes, then add 18 grams of sulfur, 9 grams of calcium oxide, and heat up to 90 ° C After reacting for 50 minutes, the color of the reaction material gradually becomes darker, and hydrogen sulfide gas is released, and the reaction tail gas is passed into a 10% sodium hydroxide solution absorption device. After the reaction, the material was cooled to 40°C, and 200 grams of 35% methanol solution was added to control the reaction temperature between 45-50°C, and the reaction was carried out for 30 minutes. At this time, there was a solution emulsification phenomenon, and the emulsified layer was 7% of the water layer. Add KR-12, T901 demulsifier mixture, the addition amount is 160ppm of the total ma...

Embodiment 2

[0052] Embodiment 2 (methanol solution handles three times, adopts three kinds of demulsifiers each time)

[0053] In a 500ml three-necked flask equipped with a temperature control system and electric stirring, add 70 grams of dodecylphenol, 75 grams of 150SN neutral oil, stir for 15 minutes, then add 18 grams of sulfur, 9 grams of calcium oxide, and heat up to 90 ° C After reacting for 50 minutes, the color of the reaction material gradually becomes darker, and hydrogen sulfide gas is released, and the reaction tail gas is passed into a 10% sodium hydroxide solution absorption device. After the reaction, the material was cooled to 40°C, and 200 grams of 35% methanol solution was added, and the reaction temperature was controlled between 45-50°C, and the reaction was carried out for 30 minutes. At this time, there was a solution emulsification phenomenon, and the emulsified layer was 6% of the water layer. Add The mixture of KR-12, T901 and polyisobutylene 1, the addition amou...

Embodiment 3

[0055] Embodiment 3 (methanol solution handles three times, adopts three kinds of demulsifiers each time)

[0056] In a 500ml three-necked flask equipped with a temperature control system and electric stirring, add 80 grams of dodecylphenol, 75 grams of 150SN neutral oil, stir for 15 minutes, then add 19 grams of sulfur, 8.5 grams of calcium oxide, and heat up to 90 ° C After reacting for 50 minutes, the color of the reaction material gradually becomes darker, and hydrogen sulfide gas is released, and the reaction tail gas is passed into a 10% sodium hydroxide solution absorption device. After the reaction, cool the material to 40°C, then add 200 grams of 40% methanol solution, and react for 40 minutes. At this time, the solution has emulsification, and the emulsified layer is 7% of the water layer. Add KR-12, T901 and polyisobutylene 1 The mixture, the addition amount is 130ppm of the total mass of dodecylphenol, the mass ratio between KR-12 and T901, polyisobutylene 1 in the...

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Abstract

The invention provides a preparation method of high-alkali vulcanized alkylphenate. The preparation method comprises the following steps: (1) mixing alkylphenol and a vulcanizing agent with alkali metal oxide, and conducting a vulcanization reaction; (2) adding a water solution of low molecular alcohol into a reaction product in the step (1), mixing, adding an emulsion breaker, and separating an oil phase; (3) adding a dispersion aid and the alkali metal oxide into an oil phase product in the step (2), adding carbon dioxide, producing a carbonation reaction, and collecting a product. The high-alkali vulcanized alkylphenate prepared by the method is excellent in high-temperature detergency, corrosion resistance and oxidation resistance, and is a lubricating oil detergent with comprehensive performance.

Description

technical field [0001] The invention relates to a high alkali value sulfurized alkyl phenate, in particular to a preparation method of high alkali value sulfurized alkyl phenate calcium and / or magnesium. Background technique [0002] High base value sulfurized alkyl phenate calcium is a type of detergent developed earlier. Because the sulfur bridge is introduced between the alkylphenol molecules, it not only strengthens the polarity of the phenate, improves the detergency, but also improves the anti-oxidation and anti-wear properties. High alkalinity salt contains a large amount of inorganic alkali, which can neutralize the acidic substances in lubricating oil, so high alkalinity sulfurized alkyl phenate has certain anti-oxidation stability, detergency, acid neutralization, and anti-wear effects , to meet the needs of most medium and high-grade internal combustion engine oils. In addition, it has a certain synergistic effect when compounded with high-basic calcium sulfonate ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M159/22C10N30/04C10N30/12C10N30/10
Inventor 刘依农段庆华李玲张耀
Owner CHINA PETROLEUM & CHEM CORP
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