Patent ID: 9562006
Date: 2017-02-07
CPC Classifications: B01J,C07C,Y02P

Claim:
1. A process for preparing symmetrical or asymmetrical dialkyl disulphides, the process comprising at least the following stages: a) introducing, into a reactor, at least one mixture of at least two organic disulphides of general formula (1): R—S b) carrying out a basic catalytic reaction or a basic and photochemical catalytic reaction, wherein a basic catalyst is used which is a supported catalyst and/or a heterogeneous catalyst, during which the organic disulphides of formula (1) are converted, by reproportionation and by disproportionation, into a mixture of symmetrical and/or asymmetrical dialkyl disulphides, c) extracting the symmetrical and/or asymmetrical dialkyl disulphide(s) desired.