Formaldehyde condensation type alkyl phenate detergent preparation method

A technology of formaldehyde condensation and alkyl phenate, which is applied in the field of lubricating oil, can solve the problems of poor polarity, few main components or use alone, and achieve good performance

Inactive Publication Date: 2014-01-15
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, pure alkylphenate has poor polarity and is difficult to metallize to produce high alkalinity products, so it is rarely used as the main component or alone

Method used

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  • Formaldehyde condensation type alkyl phenate detergent preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Add 75.0 grams of nonylphenol, 8.0 grams of ethylenediamine, and 35.0 grams of HVIWH500 dilution oil into a 500 ml four-necked bottle equipped with an electric stirrer and a condensation dehydrator, stir and heat up to about 60 ° C, and start adding the total 20.0g of 37% formaldehyde solution (completely added within 1.0h), then maintain the reaction temperature between 85-90°C for about 3 hours, then cool down, add 50.0g of solvent gasoline, ethylene glycol to the four-necked bottle 15.0 grams, 12.5 grams of calcium hydroxide (purity above 93%), and turn on the stirrer, raise the temperature to 115-125 ° C for neutralization reaction, after about 1 hour, pass a certain amount of carbon dioxide gas (control ventilation rate 100 ml / Minutes) for high alkalinity reaction for about 2.0 hours. After the reaction, cool down to room temperature, add solvent gasoline to dilute and centrifuge to remove residue, and finally evaporate the solvent under reduced pressure to obtain ...

Embodiment 2

[0020] Add 150.0 grams of octylphenol, 50.0 grams of HVI200 dilution oil, and 26.0 grams of diethylenetriamine into a 500-ml four-necked bottle with an electric stirrer and a condensation dehydrator, stir and heat up to about 70°C, and the total amount of dripping is 40.0 gram of formaldehyde solution for reaction (controlled within 1.0h), the reaction temperature was maintained at 80-90°C for about 3 hours, and then the temperature was lowered to obtain the condensed alkylphenol product.

[0021] 80.0 grams of the above-mentioned condensed alkylphenols, 76.0 grams of solvent gasoline, 20.0 grams of ethylene glycol, and 10.0 grams of calcium hydroxide were put into the reaction vessel, and the stirrer was turned on, and the temperature was raised to 115-125 ° C for neutralization reaction, about 60 After 10 minutes, a certain amount of carbon dioxide gas (control ventilation rate 100ml / min) is introduced to carry out the high alkalinity reaction for about 2.0 hours. After the r...

Embodiment 3

[0023] Add 120.0 grams of dodecylphenol, 40.0 grams of MVI 150 dilution oil, and 15.0 grams of ethylenediamine into a 500-milliliter four-necked bottle equipped with an electric stirrer and a condensation dehydrator, stir and heat up to 50 ° C, and the total amount of the dropwise addition is 40.0 grams of formaldehyde solution (completely added within 1.0h) was reacted, after the addition was completed, the temperature was raised and the reaction temperature was maintained at 80-90°C for about 3 hours (the methanol would be completely evaporated during this process), and then the temperature was lowered to obtain Condensed alkylphenol product, the appearance is yellow-brown viscous liquid.

[0024] 90.0 grams of the above-mentioned condensed alkylphenols, 96.0 grams of solvent gasoline, 30.0 grams of ethylene glycol, 6.0 grams of calcium hydroxide (purity above 93%), and 15.0 grams of MVI 150 diluent oil were put into the reactor and the stirrer was turned on, and the temperat...

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Abstract

The present invention provides a formaldehyde condensation type alkyl phenate detergent preparation method, which is a process method for synthesizing a medium alkali number alkyl phenol calcium salt by adopting alkyl phenol as a raw material and through a condensation reaction, a high alkalinity reaction and other steps. According to the method, alkyl phenol, formaldehyde, polyalkenepolyamine, calcium hydroxide and the like are adopted as raw materials, and the medium alkaline alkyl phenate detergent with an alkali number of more than 100 mg KOH / g and a calcium content of more than 2.0% is synthesized by adopting an alcohol compound as an accelerator according to a certain material ratio. The synthesized product has characteristics of no sulfur, no phosphorus, low ash, excellent high temperature detergency, excellent oxidation resistance, excellent corrosion resistance and a certain extreme pressure abrasion resistance, and is an excellent performance lubricating oil additive.

Description

(1) Technical field [0001] The invention relates to a preparation method of a condensation-type alkyl phenate detergent, in particular to a preparation method of formaldehyde-condensed alkyl phenate, which belongs to the field of lubricating oil. (2) Background technology [0002] As the main agent of internal combustion engine oil, metal detergent plays an important role in the modern lubrication industry. It is generally believed that various metal-containing detergents can mainly inhibit the oxidation and deterioration of lubricating oil and reduce the formation of high-temperature deposits on the surface of the piston ring area under high-temperature operating conditions, so as to keep the interior of the engine (combustion chamber and piston ring area, etc.) clean. Metal detergents can be divided into alkylbenzene sulfonates, alkyl phenates, sulfurized alkyl phenates, naphthenates, thiophosphates and other carboxylates according to different organic functional groups, o...

Claims

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Application Information

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IPC IPC(8): C07C215/50C07C213/02C10M133/08C10N30/04C10N30/10C10N30/12C10N30/06
Inventor刘雨花姚文钊魏存荣
OwnerPETROCHINA CO LTD