Process for the manufacture of carbonic acid esters

Claim 1

IN A PROCESS FOR THE MANUFACTURE OF MONOMERIC CARBONIC ACID ESTERS BY REACTING ORGANIC HYDROXY COMPOUNDS WITH A CARBONIC ACID DEIRVATIVE SELECTED FROM THE GROUP CONSISTING OF PHOSGENE AND CHLOROCARBONIC ACID ESTERS OF ORGANIC HYDROXY COMPOUNDS IN AN AQUEOUS ALKALINE SOLUTION, THE IMPROVEMENT COMPRISING INCREASING THE SPEED OF THE REACTION BY EMPLOYING AS A CATALYST IN SAID REACTION ABOUT 0.005-1% BY WEIGHT, BASED ON THE WEIGHT OF SAID HYDROXY COMPOUNDS, OF A TERTIARY AMINE SELECTED FROM THE GROUP CONSISTING OF TRIMETHYLAMINE, TRIETHYLAMINE, TRIPROPYLAMINE, TRIBUTYLAMINE, N,N - DIMETHYLCYCLOHEXYLAMINE, N,N-DIETHYLCYCLOHEXYALINE, N,N-DIMETHYLANILINE, N,N-DIETHYLAMINE, PYRIDINE, PICOLINE, METHYLPYRIDINE AND QUINOLINE AT TEMPERATURES FROM ABOUT 0*C. TO ABOUT 100* C., SAID ORGANIC HYDROXY COMPOUNDS BEING SELECTED FRM THE GROUP CONSISTING OF SATURATED AND UNSATRUATED UNSUBSTIITUTED ALCOHOLS, SATURATED AND UNSATRUATED PHENYL-SUBSTITUTED ALCOHOLS, UNSUBSTITUTED PARTIALLY ESTERIFIED AND PARTIALLY ETHERIFIED POLYHYDRIC ALCOHOLS CONTAINING A FREE HYDROXY GROUP, UNSUBSTITUTED MONOHYDRIC PHENOLS AND NAPHTHOLS, UNSUBSTITUTED POLYHYDRIIC PHENOLS, MONOHYDRIC PHENOLS AND NAPHTHOLS WHICH ARE SUBSTITUTED BY A MEMBER SELECTED FROM THE GROUP CONSISTING OF ALKYL, CYCLOALKYL, HALOGEN AND NITRO SUBSTITUENTS, AND UNSUBSTITUTED PARTIALLY ESTERIFIED AND ETHERIFIED POLYHYDRIDE PHENOLS CONTAINING A FREE HYDROXYL GROUP, WHEREBY SAID MONOMERIC CARBONIC ACID ESTER IS OBTAINED IN IMPROVED YIELD AND WITH A HIGHER PURITY.