An improved process for converting high-boiling hydrocarbons, which have been freed from the substances soluble in liquid sulphurous acid, into low-boiling hydrocarbons by means of aluminium chloride

摘要

272,433. Allgemeine Ges. fur Chemische Industrie. June 19, 1926, [Convention date]. Mineral oils; purifying. - High-boiling hydrocarbons are converted, almost entirely, into lowboiling hydrocarbons by treating with liquefied sulphurous acid to remove the unsaturated hydrocarbons, and then splitting with a small quantity, say 3 to 4 per cent, of aluminium chloride or a double compound thereof, and repeating the sulphurous acid and aluminium chloride treatment a number of times. Specification 271,042 is referred to.