SU1174466A1 - Method of producing polyfunctional addition to motor oils - Google Patents

Abstract

1. The method of producing a multifunctional additive to motor oils by treating the sulfonated alkylphenol with an alkaline earth metal hydroxide, is different because, in order to improve the detergent-dispersant properties and reduce the ash content of the additive, the grafted alkylphenol has been applied to the precursor and dispersant properties and reduced the ash content of the additive, and the alfinephenol has been applied to the detergent-dispersant properties and reduced the level of the additives -95 0 for 1-1.5 hours in the presence of a catalyst and calcium hydroxide is used as the alkaline earth metal hydroxide. 2. The method according to claim 1, characterized in that calcium hydroxide is used as a catalyst in the amount of 1-3 mash. per 100 May, h. alkylphenol. cl

Description

CD O)

This invention relates to the production of additives for mineral motor oils used in high temperatures. engines.

The purpose of the invention is to improve the detergent-dispersant properties and reduce the ash content of the additive.

The technology of the proposed method consists in the fact that sulfonated alkylphenol is subjected to formaldehyde condensation in an alkaline medium, and then treated with calcium hydroxide. The condensation reaction is carried out in the presence of mac. calcium hydroxide for 1-1.5 h at 65-95 ° C.

but

Sxvv-s N C 5H

T + Sa (OH) 2

-Well on

0-CAHOCH sJxxSX I

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V Example 100 ma.ch. sulphurised alkylphenol is diluted with 30 parts by weight. oils I-12A and diluted product of sulphurization at 3 wt.h. calcium oxide hydrate and 25 ma.ch. 37% aqueous formaldehyde solution The temperature of the reaction mass is raised to and maintained for 1 hour.

The condensation reaction is controlled by determining the base number (3538 mg-KOH / G). At the end of the condensation reaction, the product is further diluted with I-12A oil, taken in an amount of 50 mash.

The treatment of the condensation products with an aqueous suspension of calcium hydroxide is carried out for 2 hours. The consumption of CatOH) 2 for the sulfurized alkylphenol taken is 10-12 parts by weight. Then the resulting product is subjected to

drying. After separation from the mechanical; By centrifuging, the finished product is obtained. The additive obtained by the proposed method, called ICP-110, is a calcium salt of bis- (methylolalkylphenol) disulfide in a mineral oil solution (80%),

The test results of additives IHP-110 in. comparison with the known are given in the table.

As can be seen from the table, the additive IHP-110, having a 20-30 mg-KOH / g higher base number and 28-32% less ash, is not inferior to the known detergent and anti-corrosion properties and simultaneously improves detergent-dispersant and antioxidant properties known.

Mass dol,%;

bari not less than 5.0

calcium chlorine, not more than 0.2

sulfur .4,0-5,5

Corrosion Base Oil

with 3% additive, no more than, g / m 15.0

Base oil detergent properties

with 3% additive according to the ELV method,

score, no more than .1,5

Base oil stability.

with 3% additive according to the method,%: sedimentation of viscositySolubility in oil Full

1.9-2.2

3.4-4.5 5.0

0-0,5

Missing

45-65

Is full

Claims (2)

1. METHOD FOR PRODUCING MULTI-FUNCTIONAL ADDITIVE 'to engine OILS by treatment of sulphurous alkyl phenol with alkaline earth metal hydroxide, characterized in that, in order to improve detergent-dispersant properties and reduce the ash content of the additive, sulphide-alkyl phenol is preliminarily condensed with formaldehyde at 65 ° C at 65 for 1-1.5 hours in the presence of a catalyst and calcium hydroxide is used as an alkaline earth metal hydroxide. 2. The method according to π.1, distinguished by the fact that as a catalyst use calcium hydroxide in an amount of 1-3 parts by weight of based on 100 parts by weight alkyl phenol. (L with h neither about > ι 1174466 2