Sulfonate detergent, preparation method and applications thereof

A technology of detergent and sulfonate, applied in the direction of additives, petroleum industry, lubricating composition, etc., can solve the problems of limited anti-oxidation effect, achieve the effect of improving anti-oxidation performance, improving the problem of phase separation, and improving the efficiency of post-treatment

Active Publication Date: 2017-08-08
江西福安路润滑材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the above-mentioned disclosed patents, the main function of adding a small amount of phenoxide and / or salicylate is to solve the liquid phase separation problem of the reaction system in the preparation process of sulfonate, generally adding 0.1wt%-1wt%, so The antioxidant effect on improving the final product is limited, and phenate and / or salicylate detergents still need to be added when preparing lubricating oil compositions

Method used

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  • Sulfonate detergent, preparation method and applications thereof

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[0022] The embodiment of the present invention discloses a preparation method of a sulfonate detergent, comprising:

[0023] a) Neutralize reaction by mixing alkylsulfonic acid and / or alkylsulfonate, basic compound and solid acid with diluent and / or accelerator which may or may not be added;

[0024] b) adding a basic compound, and introducing carbon dioxide for carbonation;

[0025] c) Separation to obtain the target product.

[0026] In the above-mentioned preparation method, the preparation method of the alkylsulfonic acid and / or alkylsulfonate comprises: aromatic compound and C 8 -C 45 Alkylation of olefins, followed by reaction with a sulfonating agent to give alkylsulfonic acids and / or alkylsulfonates.

[0027] For example, the aromatic compound includes any one or a combination of two or more of benzene, toluene, xylene, naphthalene, and anthracene.

[0028] And / or, the olefin comprises C 14 -C 30 Any one or a combination of two or more of the olefins, preferably ...

Embodiment 1

[0061] Add 30g of alkylsulfonic acid, 7mL of methanol, 85mL of toluene, 2.3g of calcium oxide, 4.6mL of water and 10g of acid clay activated by C14 alkyl salicylic acid into the reaction flask equipped with a stirrer, and react at no more than 75°C After 1h, add 25g of calcium hydroxide, mix for 20min, pass CO 2 (The rate is 100mL / min~400mL / min) over 2 hours, add 32g of base oil, heat up to 120°C to distill methanol and generated water, etc., then centrifugally filter to obtain a clear solution, distill toluene under reduced pressure at 150°C, and finally get Calcium Sulfonate Detergent.

Embodiment 2

[0063] Add 30g of alkylsulfonic acid, 9.7g of methanol, 92.8g of toluene, 4.5g of calcium hydroxide and 15g of acid clay activated by C12 alkylphenol into the reaction flask equipped with a stirrer, and react at no more than 75°C for 1h, Add 20g of calcium hydroxide, mix for 20min, pass CO 2 (The rate is 100mL / min~400mL / min) over 2 hours, add 32g of base oil, heat up to 120°C to distill methanol and generated water, etc., then centrifugally filter to obtain a clear solution, and distill toluene under reduced pressure at 150°C. Finally, a calcium sulfonate detergent is obtained.

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Abstract

The invention discloses a sulfonate detergent, a preparation method and applications thereof. The preparation method comprises: a) mixing alkyl sulfonic acid and/or alkyl sulfonate, an alkali compound, a solid acid and an optionally adding or an optionally being not added diluent and/or a promoter, and carrying out a neutralization reaction; b) adding an alkali compound, introducing carbon dioxide, and carrying out a carbonation reaction; and c) separating to obtain a target product. According to the present invention, with the method, the acidic white clay can be activated by alkylphenol and/or alkylsalicylic acid during the sulfonate detergent preparation process, such that the phase separation problem during the reaction process can be 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 sulfonate detergent has advantages of good acid neutralizing ability, good high-temperature cleanability, good rust resistance, good corrosion resistance, and good oxidation resistance.

Description

technical field [0001] The invention relates to the field of lubricating oil detergents, in particular to a sulfonate detergent, its preparation method and application. Background technique [0002] Lubricating oil detergent is one of the main types of lubricating oil additives, and its consumption is second only to the dispersant with the largest consumption. It not only has the functions of solubilizing, dispersing sludge and cleaning, especially the detergent with high alkali value, but also has the function of neutralizing the acidic substances generated during the use of lubricating oil, which can significantly reduce the corrosion of such acidic substances on devices Therefore, it is widely used to prepare marine cylinder oil, gasoline engine oil and diesel engine oil for automobiles, internal combustion engine oil and air-cooled engine oil, etc. [0003] At present, lubricating oil detergents mainly include sulfonate, alkylphenate, salicylate, naphthenate, oleate and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M141/08C10M135/10C10M125/30C10N30/04C10N30/12C10N30/10
CPCC10M125/30C10M135/10C10M141/08C10M2219/044C10N2030/04C10N2030/10C10N2030/12C10N2010/04
Inventor 刘烨
Owner 江西福安路润滑材料有限公司
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