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Multifunctional sulfonate detergent with controllable base number as well as preparation method and application thereof

A multi-functional, sulfonate technology, applied in the direction of additives, petroleum industry, lubricating compositions, etc., can solve the problems of unreported preparation methods, increase reaction steps, prolong reaction time, etc., and achieve excellent cleaning and dispersing effect, low ash content , The effect of simplifying the operation process

Inactive Publication Date: 2017-01-11
NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

But the preparation method of the borated sulfonic acid composite calcium magnesium detergent has not been reported yet
And the steps about boration in the above-mentioned documents are all adopted to react with boric acid on the basis of high alkali value sulfonate detergent, which not only increases the reaction steps, prolongs the reaction time, but also needs to be destroyed in the boration process. micelles, resulting in micellar instability

Method used

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  • Multifunctional sulfonate detergent with controllable base number as well as preparation method and application thereof

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preparation example Construction

[0028] One aspect of the present invention provides a kind of preparation method of the multifunctional sulfonate detergent with controllable base number, which may comprise:

[0029] a) mixing alkylsulfonic acid and / or alkylsulfonate, calcium-containing basic compound or magnesium-containing basic compound with a hydrocarbon solvent that can optionally be added or not added, and a neutralization reaction occurs,

[0030] b) Add magnesium-containing basic compound and boron-containing compound, feed carbon dioxide to react,

[0031] c) Isolation of the target product.

[0032] Preferably, the preparation method of the aforesaid alkylsulfonic acid and / or alkylsulfonate may comprise: aromatic compound and C 8 -C 45 The alkenes are alkylated and then reacted with a sulfonating agent to obtain alkylsulfonic acids and / or alkylsulfonates.

[0033] Wherein, the aromatic compound may be at least selected from but not limited to benzene, toluene, xylene, naphthalene, anthracene or a...

Embodiment 1

[0072] Add 30g of alkylsulfonic acid, 7mL of methanol, 85mL of toluene, 2.3g of calcium oxide and 4.6mL of water into a reaction flask equipped with a stirrer, and react at a temperature not exceeding 75°C for 1 hour, then add 9.2g of MgO and 16g of boric acid, and mix for 20 minutes After that, 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 magnesium boronated sulfonate complex detergent.

Embodiment 2

[0074] Add 30g of alkylsulfonic acid, 9.7g of methanol, 92.8g of toluene, 4.5g of calcium hydroxide into the reaction flask equipped with a stirrer, and react at no more than 75°C for 1 hour, then add 17.1g of MgO and 1.9g of boric acid, and mix for 20 minutes After that, 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-magnesium boronated sulfonate composite detergent is obtained.

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Abstract

The invention discloses a multifunctional sulfonate detergent with a controllable base number as well as a preparation method and application thereof. The preparation method comprises the following steps of: a) mixing alkyl sulfonic acid and / or alkyl sulfonate, a calcium-containing alkaline compound or magnesium-containing alkaline compound and a diluent and / or accelerant added or not, and enabling a neutralizing reaction; b) adding a magnesium-containing alkaline compound and a boron-containing compound, and introducing carbon dioxide for reacting; and c) separating to obtain the target product. The preparation method disclosed by the invention is simple and controllable while the cost is low; the obtained detergent has an excellent detergent-dispersant effect as well as perfect friction / wear resistance, rust resistance, corrosion resistance and extreme pressure property and can be widely applied to various lubricants as an additive such as engine lubricating oil, marine lubricating oil, antirust lubricating oil, industrial lubricating oil, automatic and manual transmission fluid, tractor fluid, hydraulic fluid, power steering gear fluid, gear lubricating oil and pump working oil.

Description

technical field [0001] The invention relates to a sulfonate-based detergent, its preparation method and application, in particular to a multifunctional sulfonate-based detergent with controllable base value, its preparation method and application, and belongs to the field of lubricating oil detergents. Background technique [0002] Today, the amount of internal combustion engine oil accounts for more than half of the total amount of lubricating oil, and detergent is the main additive of various modern internal combustion engine oils, and its amount is second only to the dispersant with the largest amount. They can effectively neutralize the harmful inorganic acids and organic acids that are inevitably generated by fuel combustion and internal combustion engine oil under operating conditions, and can make the generated sludge and solid particles more uniform and stable through peptization and solubilization Dispersed in lubricating oil, so as to achieve the purpose of slowing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M159/12C10M139/00C10N30/04C10N30/06C10N30/12
Inventor 曾红玲王声培王志刚刘升高
Owner NINGBO INST OF MATERIALS TECH & ENG CHINESE ACADEMY OF SCI
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