PROCESS FOR THE SEPARATION OF SATURATED HYDROCARBONS FROM A HYDROCARBON CHARGE CONTAINING THEM

摘要

The invention relates to a process for the separation of a hydrocarbon charge into a fraction which precipitates at the operating temperature and a fraction which remains liquid at that temperature. This process is of the fractionated-dilution type and entails the use of a solvent whose composition changes at least once in the course of the various dilutions and of an antisolvent whose proportion in the solvent-diminishes from at least one of the dilutions to the next dilution. Application: Dewaxing of oils.