Abstract: A single-stage reactor in the form of two concentric tubes and, one acting as a central stack and the other as a wall of reactor, widening out towards the top; a gas diffuser at the bottom of the stack, enabling gas to be injected into the liquid column above the diffuser, while a vesicle remover is located in the upper part of reactor; pipes and for feeding in the reagents, and a pipe for forcing back the gaseous phase at the top of reactor; a connection inclined by over 45.degree. to an extension of the horizontal and establishing direct communication between the bottom of reactor and a decanting chamber; and a vertical degassing tube located between connection and decanting chamber.Application of this arrangement to the reaction between finely divided aluminum, hydrogen and at least one olefin having 2 to 30 carbon atoms, at a temperature of from 100.degree. to 200.degree. and a pressure of 30 to 200 bars, in a perfectly homogeneous medium for the preparation of alkylaluminums.

Abstract: Carbon oxysulfide is obtained in high yield and with high product selectivity and conversion rates by the sulfurization of methanol in the gas phase at elevated temperatures. The starting methanol utilized in the process may be advantageously supplied from natural gas generated at petroleum production sites.