Process for the continuous ozonolysis of Beta-pinenes

摘要

1. A process for the continuous ozonolysis of beta -pinene by treating an emulsion of water in a solution of the olefinic starting material in a reactive organic solvent with a gas stream containing rom 0.5 to 1.5 % by weight of ozone, the liquid and gaseous reactants flowing in parallel current and the maximum reaction temperature being regulated to values of at most 50 degrees C, and working up the reaction product by hydrolytic cleavage, characterized in that, whilst avoiding the formation of pockets of liquid in the reactor, the liquid reactant is exposed to the effect of the gaseous reactant in the form of a turbulently flowing film of large surface area, the gaseous reactant being passed through the reactor in a highly turbulent zig-zag flow along or over the liquid film at empty-tube flow rates of at least 2 m/sec and with residence times in the reactor of less than 2 secs. and reaction mists occuring in the waste gas stream being broken up by means of a depth filter charged with a liquid on the approach side.