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High-alkaline-value synthetic calcium alkyl benzene sulfonate nano detergent and preparation method thereof

A technology of calcium alkylbenzenesulfonate and alkylbenzenesulfonic acid, which is applied in the field of synthetic calcium alkylbenzenesulfonate nano-detergent with high alkali value and its preparation, and can solve high viscosity, extreme pressure and wear resistance Poor and other problems, to achieve the effect of high alkali value, good performance, high material utilization

Inactive Publication Date: 2016-04-20
ANHUI JINTONG FINE CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Aiming at the problems that the calcium carbonate particles in the existing calcium sulfonate detergent products are all in an amorphous state, there are problems such as poor extreme pressure and wear resistance, high viscosity, etc., the present invention provides a synthetic alkylbenzene with high alkali value Calcium sulfonate nano detergent and preparation method thereof, the synthetic alkylbenzene sulfonate calcium nano detergent with high alkali value of the present invention is composed of synthetic calcium alkylbenzene sulfonate, calcium carbonate of vaterite crystal form and base oil; Among them, the alkali content of the product is higher than 400mgKOH / g, and the kinematic viscosity at 100°C is lower than 100mm 2 / s, depending on the preparation conditions, the particle size of the product can be controlled within the range of 10-100nm, the particle size distribution is narrow, and it has the advantages of high alkali value, low viscosity, clarity and stability, etc.

Method used

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  • High-alkaline-value synthetic calcium alkyl benzene sulfonate nano detergent and preparation method thereof
  • High-alkaline-value synthetic calcium alkyl benzene sulfonate nano detergent and preparation method thereof
  • High-alkaline-value synthetic calcium alkyl benzene sulfonate nano detergent and preparation method thereof

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Embodiment 1

[0038] The low-carbon alcohol accelerator in the present embodiment is methyl alcohol; The co-accelerator is ethylenediamine; The alkaline earth metal halide is magnesium chloride; The dosage steps are:

[0039] (1) Preparation of synthetic calcium alkylbenzenesulfonate solution: dissolve 230g of synthetic alkylbenzenesulfonic acid in 800mL of xylene, heat and stir to mix evenly, and when the temperature of the system rises to about 35°C, add 30g of methanol and 20g of oxidation Calcium, promote the temperature of the thermal bath (the temperature here is recorded as the neutralization temperature), stir and react for 45min at 40°C to obtain a synthetic calcium alkylbenzenesulfonate solution;

[0040] The production process for the synthesis of alkylbenzenesulfonic acid in this example is as follows: Alkylation of α-olefins with a carbon chain distribution of C18-C30 directly with pure benzene using HF acid as a catalyst to generate alkylbenzene products, and the alkane The b...

Embodiment 2

[0045] In the present embodiment, the step of the synthetic calcium alkylbenzenesulfonate nano-cleaning agent of high alkali value is basically the same as embodiment 1, and the difference is to change the intake of carbon dioxide. In the present embodiment, the intake of carbon dioxide is 100g. The properties of the prepared products are shown in Table 1.

Embodiment 3

[0047] In the present embodiment, the step of the synthetic calcium alkylbenzenesulfonate nano-cleaner of high alkali value is basically the same as embodiment 1, and the difference is to change the intake of carbon dioxide, and the intake of carbon dioxide is 65g in the present embodiment, The properties of the prepared products are shown in Table 1.

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Abstract

The invention discloses high-alkaline-value synthetic calcium alkyl benzene sulfonate nano detergent and a preparation method thereof and belongs to the field of lubricating composite preparation. The high-alkaline-value synthetic calcium alkyl benzene sulfonate nano detergent is formed by compounding synthetic calcium alkyl benzene sulfonate, ball graupel crystal type calcium carbonate and base oil; the preparation method includes the steps of (1), preparation of a synthetic calcium alkyl benzene sulfonate solution; (2), preparation of the synthetic calcium alkyl benzene sulfonate nano detergent, (3) posttreatment and the like; the alkali content of a prepared product is higher than 400 mg KOH / g, the movement viscosity at the temperature of 100 DEG C is lower than 100 mm<2> / s, the product particle size is controlled within the range of 10-100 nm according to different preparation conditions, the particle size distribution is narrow, and the high-alkaline-value synthetic calcium alkyl benzene sulfonate nano detergent has the advantages of being high in alkaline value, low in viscosity, clear, stable and the like.

Description

technical field [0001] The invention belongs to the field of lubricating composition preparation, and more specifically relates to a synthetic calcium alkylbenzene sulfonate nano-cleaning agent with high alkali value and a preparation method thereof. Background technique [0002] Metal detergents are one of the most important additives in lubricating oils for internal combustion engines such as automobiles and ships. Its function is to: inhibit and remove high-temperature deposits on the surface of the piston, reduce mechanical surface wear; neutralize the acidic substances produced by incomplete combustion of fuel and high-temperature oxidation of oil products, prevent device corrosion, and greatly extend the service life of oil products and engines Purpose. Such detergents are usually composed of surfactants (sulfonates, alkyl salicylates, sulfurized alkanoates, etc.), carbonates (or borates) and diluent oils (synthetic oils, mineral oils). Among them, the surfactant is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C309/31C07C303/32C10M163/00C10N30/04
CPCC07C2/70C07C303/06C07C303/32C10M163/00C10M2201/062C10M2219/046C10N2030/04C07C15/107C07C309/31C10N2010/04
Inventor 刘锐许瑞明赵敏
Owner ANHUI JINTONG FINE CHEM CO LTD
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