SU1384571A1 - Alpha-methylbenzylidenoctadecylamine as antiwear and antioxidative additive to hydrocarbon fuels - Google Patents

Abstract

The invention relates to alkyl aromatic amines, in particular tilbenzylideneoctadecylamine (AM), which can be used as an antiwear and antioxidant additive to hydrocarbon fuels. The goal is to create more effective additives to oils. Synthesis of AM is carried out from acetophenone and octadecyl amine in toluene at 110 ° C. Yield 41%, mp 21 ° C, gross f-la. The new AM improves the thermal stability of the fuel at a concentration of 0.003-0.05%, as well as its anti-wear properties. 1 tab.

Description

oo

00

j cl

This invention relates to organic chemistry, specifically, to "(-methylbenzylideneoctadecylamine of formula

, O) -C M-С18Нз7

(I)

as antiwear and antioxidant additive to hydrocarbon fuels.

The purpose of the invention is to search for iodine derivatives of substituted aliphatic amines, which have a higher efficiency when used as additives to hydrocarbon fuels.

The invention is illustrated by the following examples.

Example. 0.35 mol of adethophenone, 0.3 mol of octadecylamine and 130 ml of toluene and 0.1 g of ZnClj are charged to the reaction flask. The reaction is carried out at 110 ° C for 3 hours. At the end of the evolution of water in a Dean-Stark trap (5.4 ml), toluene is distilled off, the residue is cooled and washed with acetone, and then recrystallized from alcohol. The yield is 41%. Receive product st; W1.21 ° C.

Calculated,%: C 84.09; H 12.13 | N3.75.

C, gH45N.

Found,%: C 84.00; H 12.17; N 3.36.

In the IR absorption spectra, there is a characteristic band for communication. 1620 cm.

The effectiveness of the compound (I), which improves the anti-wear properties and the thermo-oxidative stability of the fuels, was confirmed by testing

The results indicate that the compound (1) e-methylbenzylidene dentadecylamine improves thermal-oxidative stability and anti-wear properties of hydrocarbon fuels in a concentration of 0.003-0.01%. It follows from the table that for a known compound — isopropyl-de-tadecylamine in concentrations of 0.05%, the improvement effect — anti-wear properties and thermal-oxidative stability is less significant compared with compound (I). Fore. Mule Invention

c-Methyl b enzylidenoctadecyl amine of formula H

О; -у -С1зНз7

SNS

as antiwear and antioxidant additive to hydrocarbon fuels.

MI, respectively, on the laboratory installation PST-2 and methods TSRT-2. The evaluation criterion for anti-wear properties was taken as the ratio of the wear values obtained on the fuel to the wear values on ethanol (isooctane).

Thermal-oxidative stability was estimated by the amount of sediment after oxidation of the fuel for 5 hours at 150 C.

Compound (I) in an amount of 0.001 to 0.02% or a known additive, isopropyl octadecylamine, was introduced into a hydrocarbon fuel boiling away at 60-280 ° C, and tests were performed, the results of which are shown in the table.

Claims (1)

The formula of the invention c / -Metyl benzylidene-tadecyl amine of the formula c = i-c _m n ₃₇ sn ₃ as antiwear and antioxidant additives to hydrocarbon fuels. 25 | fuel and Quantity Method 4. —--- 1 Method additive being May. % PST-2 TSRT-2 thirty wear indicator, conventional units The amount of sediment, kg / / 100 ml of fuel Fuel fraction 60-280 ° C Same + + isopropyl octadecyl amine Same as + + d-methylbenzylidene-cadecylamine 75 19.5 0.05 45 13.6 0.001 72 17.9 0.002 40 12,2 0.003 32 10.0 0.005 thirty 6.0 0.01 thirty 6.0 0.02 31 6.5