Stearic Acid → Stearoyl chloride

Participants

Reaction Conditions

Reaction Steps

170.4 g (0.6 mol) of stearic acid and 890 g of monochlorobenzene are introduced into the reactor and 594 g (6 mol) of phosgene are then added over about 30 minutes, while maintaining the temperature of the reaction medium at a maximum of 25° C. The set pressure is adjusted to 10.5 bar relative. The reaction medium is heated to 120° C. and is maintained at this temperature for 1 hour 30 minutes and is then heated to 150° C. and maintained at this new temperature for 1 hour. The level of residual acid is then about 1.4 mol %, the level of residual anhydride is zero and the level of stearoyl chloride obtained 98.6 mol %. The maximum pressure reached was 9 bar relative.

Provenance & Evidence