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Preparation method of nanoscale high-boron-content composite acid magnesium detergent

A compound acid and nano-scale technology, applied in the direction of additives, lubricating compositions, petroleum industry, etc., can solve the problems of large particle size, high sulfur content, high product viscosity, etc., achieve good anti-wear performance and colloidal stability, sulfur The effect of low content and high boron content

Pending Publication Date: 2021-08-10
XINXIANG RICHFUL LUBE ADDITIVE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the magnesium sulfonate detergent has disadvantages such as poor anti-oxidation effect, poor extrusion resistance, and high sulfur content; the introduction of boronated reagents makes the product have excellent anti-wear properties; although boronated detergents have already begun research , but the product has a high alkali value and high viscosity, which means that the colloidal nuclei grow too fast and are not tightly wrapped during the later growth process, resulting in an excessively large particle size of the product, which is reflected in the high viscosity of the product, which limits boronization Further expanded application of magnesium sulfonate detergent in high-grade compounding agent

Method used

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  • Preparation method of nanoscale high-boron-content composite acid magnesium detergent

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preparation example Construction

[0043] like figure 1 As shown, the present invention provides a method for preparing a nano-high boron content composite flaky flare, including:

[0044] Step 1, with a long chain alkylbenzenesulfonic acid, an alkylbenzenesulfonic acid and an alkyl aqueous acid, and the magnesium acid magnesium acid is produced by neutralization with magnesium oxide at low alcohol. Salt and alkyl salicylate is produced;

[0045] Specifically include:

[0046] As a further improvement in the present invention, step 1, specifically includes:

[0047] In four flasks equipped with a stirrer, reflow condensation, thermocouple thermometers, an organic solvent, long chain alkylbenzene sulfonic acid, hemylbenzene sulfonic acid, alkyl aqueous acid, base oil, low carbonol , Small molecular acid, fatty acids, magnesium oxide, warming stirring, neutralizing reaction to produce sulfonate osulfonate and alkyl salicylate.

[0048]Further, the active content of the long chain alkylbenzenesulfonic acid is 85% to 9...

example 1

[0070] Example 1: Preparation of High Boron Content Compound Acids Magnesium Cleantic MG-B1

[0071] To 500 ml of four flask, 100 g of xylene # solvent, 20 g of long chain alkylbenzenesulfonic acid, 10 g of hemantanesulfonic acid, 10 g alkyl hydrotlic acid, 50 g 150 Sn, 15 g of methanol, 4.0 g of fourteen acid, 3.0 GCC and 8.0 g of magnesium oxide, warmed to 40 to 60 ° C. After completion, 15 g of methanol was added, 5.0 g of polyisobutylene di diapone, stirred for 30 min, control 40-60 ° C; then 2 g of ethylenediamine, 4 g of magnesium oxide and 5 g of water, at 40 to 60 ° C, at 45 ml / min The gas is accented from carbon dioxide, vents to 2L, one free base 45mgkoh / g; maintain temperature unchanged, add 1 g of ethylenediamine, 6 g of magnesium oxide and 5g water, then venting to 5.5 L, secondary free base 120 mgkoh / g, Stop ventilation. 50 g of boric acid and 60 g n-butanol were configured, and the boric acid solution was started, and the dropwise addition time was 90 min, and...

example 2

[0072] Example 2: Preparation of High Boron Content Composite Based Cake MG-B2

[0073] To 500 ml of four flask, 100 g of xylene # solvent, 20 g of long chain alkylbenzenesulfonic acid, 10 g of hemantanesulfonic acid, 10 g alkyl hydrotlic acid, 50 g 150 Sn, 15 g of methanol, 4.0 g of fourteen acid, 3.0 GCC and 8.0 g of magnesium oxide, warmed to 40 to 60 ° C. After completion, 15 g of methanol was added, 5.0 g of polyisobutylene di diapone, stirred for 30 min, control 40-60 ° C; then 2 g of ethylenediamine, 4 g of magnesium oxide and 5 g of water, at 40 to 60 ° C, at 45 ml / min The gas is accented from carbon dioxide, ventilates to 2L, one free base 45mgkoh / g; maintain temperature unchanged, 1 g of ethylenediamine, 6 g magnesium oxide and 5g water, then ventilated to 6.5 L, secondary free base 80 mgkoh / g, Stop ventilation. 30 g of boric acid and 40 g n-butanol were configured, and the boronic acid solution was started, and the dropwise time was 60 min, and the reaction temper...

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Abstract

The invention discloses a preparation method of a nanoscale high-boron-content composite acid magnesium detergent, and the method comprises the following steps: carrying out neutralization reaction on composite acid (long-chain alkyl benzene sulfonic acid, heavy alkyl benzene sulfonic acid and alkyl salicylic acid) and magnesium oxide to produce magnesium sulfonate normal salt and alkyl magnesium salicylate normal salt; carrying out carbonation reaction on magnesium sulfonate normal salt, alkyl magnesium salicylate normal salt, magnesium oxide and carbon dioxide to generate micelles which take nanoscale magnesium carbonate particles as cores and are wrapped by magnesium sulfonate normal salt and alkyl magnesium salicylate normal salt molecules; continuously dropwise adding a mixed solution of a boronizing reagent and low-molecular alcohol, and carrying out boronizing reaction to generate micelles which take nanoscale magnesium carbonate particles and magnesium borate particles as cores and are wrapped by magnesium sulfonate normal salt and alkyl magnesium salicylate normal salt molecules; ad removing alcohol water, centrifugally removing slag, and distilling the solvent to obtain the product. The prepared composite acid magnesium detergent has excellent detergency, oxidation resistance and wear resistance, and meanwhile, the product is low in viscosity and good in colloidal stability.

Description

Technical field [0001] The present invention relates to the field of detergent techniques, and more particularly to a method for preparing a nano-high boron content of a compound of the alamic flare. Background technique [0002] The increasingly demanding environmental emissions requires strict restrictions on sulfur, phosphorus, and ash, and the internal combustion engine oil is gradually high-grade and multi-levelization. In order to adapt to this lubrication, modern lubricants tend to reduce the solution of sulfonate salt to reduce the ash, and the alkyl salicylate is added to lower sulfur content, add more sulfur-containing, phosphorus, etc. Additives to reduce friction wear. In this way, the proportional disorders between single agents have often occurred in a single-agent, thereby prone to an irreversible failure problem. [0003] The alkaline portion in the sulfonate can neutralize an oxygen-containing oxygen generated in the moiety or fuel, preventing its further oxidati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M141/08C10M177/00C10N30/04C10N30/06C10N30/10
CPCC10M141/08C10M177/00C10M2201/062C10M2201/087C10M2207/144C10M2219/044
Inventor 李学文卜卫元王龙龙范金凤张超
Owner XINXIANG RICHFUL LUBE ADDITIVE CO LTD
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