Alkylphenolate detergent, preparation method and applications thereof

A technology of alkyl phenate and detergent, applied in the field of lubricating oil detergent, can solve problems such as limited rust preventive effect, and achieve the effects of improving post-treatment efficiency, improving phase separation problem, and improving rust preventive performance.

Active Publication Date: 2017-08-08
江西福安路润滑材料有限公司
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AI Technical Summary

Benefits of technology

The technical effect of this patented method described in this patents relates to an improved formulation that makes use of specific chemical substances like alkaline earth metal salts or certain types of acids added during its production. This results in better properties such as reducing friction between moving parts while maintaining effective protection against wear caused by various factors including water vapor exposure (humidity) and temperature fluctuations over time. Additionally, these new compositions have excellent antiwear/corrosiveness characteristics due to increased stability compared with existing methods. Overall, they provide superior benefits when applied on different applications involving engines, machinery, vehicles, etc., which require smooth operation without any issues associated therewith.

Problems solved by technology

This patented technical solution describes how different chemical agents like alcohol esters (EO) or amine compounds help prevent damage caused by various factors including pitting, eroding, metal debris accumulation, oxidative decomposition, corrosive attack against metals, reducing their effects over long periods of operation. These chemistries may be added separately without affecting any others' benefits. Additionally, some specific examples discuss the importance of combining multiple components together to achieve better overall results compared to just treating an entire mixture containing both ingredients alone.

Method used

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  • Alkylphenolate detergent, preparation method and applications thereof

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[0023] The embodiment of the present invention discloses a preparation method of an alkylphenate detergent, comprising:

[0024] a) Alkylphenol, basic compound, coupling reagent and solid acid are mixed with optional diluent and / or accelerator for coupling reaction;

[0025] b) adding basic compounds, and passing carbon dioxide to carry out carbonation reaction;

[0026] c) Separation to obtain the target product.

[0027] In the above preparation method, the alkylphenol is obtained by using one or more C containing monomers from the hydroxyaromatic compound 8 -C 45 Oligomers obtained by alkylation of olefins, said monomers being selected from propylene, butene or mixtures thereof.

[0028] In the above preparation method, the basic compound may be preferably selected from but not limited to alkali metal oxides, alkali metal hydroxides, alkali metal carbonates, alkaline earth metal oxides, alkaline earth metal hydroxides, alkaline earth metal carbonates or their mixture. ...

Embodiment 1

[0059] Add dodecylphenol (49.5 g), base oil (37.5 g), p-toluenesulfonic acid activated clay (24.75 g) and isooctyl alcohol (30 mL) into the reactor successively under argon atmosphere, and stir After bubbling argon through and heating the mixture to 60°C, sulfur (11 g) and calcium hydroxide (54.7 g) were added. The temperature of the mixture was raised to 150ºC, and ethylene glycol (10 g) was added. The temperature was further raised to 175ºC, and the reaction was stirred at this temperature for 3h. Stop blowing argon, and blow carbon dioxide (40 mL / min) into the reaction liquid for 5h. Then the mixture was distilled under high vacuum and reduced pressure for 1 hour at 150°C to distill off the solvent and water. The vacuum distillation was stopped and additional base oil (22g) was added. The mixture was stirred for 15 minutes, and hot filtered to obtain the total base number TBN of the sulfurized dodecylphenol calcium salt detergent: 294 mgKOH / g.

Embodiment 2

[0061] Dodecylphenol (main component is p-dodecylphenol) (30g), base oil (36.5g), clay activated by dodecylbenzenesulfonic acid (18g) and Isooctyl alcohol (50 mL) was successively added into the reactor, argon was bubbled under stirring, and the mixture was heated to 60°C, then formaldehyde (11 g) and calcium hydroxide (34.2 g) were added. The temperature of the mixture was raised to 160ºC, and ethylene glycol (10 g) was added. The temperature was further raised to 180ºC, and the reaction was stirred at this temperature for 3h. Stop argon blowing, and blow carbon dioxide (40 mL / min) into the reaction solution for 6 h. Then the mixture was distilled under high vacuum and reduced pressure for 1 h at 150ºC to distill off the solvent and water. The vacuum distillation was stopped and additional base oil (18 g) was added. The mixture was stirred for 15 minutes, and filtered hot to obtain the total base number TBN of the dodecylphenol calcium salt detergent: 239 mg KOH / g.

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Abstract

The present invention discloses an alkylphenolate detergent, a preparation method and applications thereof. The preparation method comprises: a) carrying out a coupling reaction on alkylphenol, an alkaline compound, a coupling reagent, a solid acid and an optionally adding or non-adding diluent and/or accelerator; b) adding an alkaline compound, introducing carbon dioxide, and carrying out a carbonation reaction; and c) separating to obtain the target product. According to the present invention, with the method of the present invention, the porous structural material activated by the organic acid during the alkylphenolate detergent preparation process can be prepared; particularly by adding the alkyl sulfonic acid-activated acidic white clay, the phase separation problem during the reaction process is improved, and the solid acid can be used as the auxiliary filtration agent during the post-treatment process so as to improve the post-treatment efficiency; and the synthesized alkylphenolate detergent has characteristics of good acid neutralizing ability, high temperature cleanability, oxidation resistance, good rust resistance, good corrosion resistance, good dispersibility, and good solubilizing property.

Description

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Claims

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Application Information

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Owner 江西福安路润滑材料有限公司
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