MINIMIZING EVAPORATION OF LIGHT HYDROCARBONS FOR IRAQI GASOLINE BY USING D-GLU CITOL FATTY ACID ESTERS AS REDUCED PRESSURE AGENTS,SYNTHESIS AND CHARACTERIZA TIO

Abstract

The study involved synthesis of [1,6-Di-O-(4-Alkanoyloxybenzoyl)-D-glucitol by reaction of 4-al kanoyloxy benzoyl chloride with D-glucitol in 2:1 molar ratio in pyridine as a solvent, all the reac tions monitored by TLC and the structures were characterized using FTIR technique. Synthesized compounds possibility of reducing pressure were estimated by lowering vapor pressure for con centrations (1-10 mg L-1 ) at various temperatures (37.8, 40, 43 and 45°C ). Saturated vapor pres sure (Reid vapor pressure) and surface tension showed successful attempt for using synthesized -D-Glucitol fatty acid esters as agents for reducing gasoline pressure at various concentr ations and temperatures. These compounds were reduced the surface tension as average 3 mN/m for Benzoic acid and D-glucitol fatty acid ester compounds, while reduced vapor pressure as average 18.8 kPa for Benzoic acid fatty acid ester and 25 kPa for D-glucitol fatty acid ester compounds respectively.