Abstract:
A process for the manufacture of allyl chloride or methallyl chloride, which comprises reacting allyl acetate or methallyl acetate with dry gaseous hydrogen chloride in the presence of 0.01 to 10 percent by weight of a catalyst comprising a mixture of a salt of monovalent or bivalent copper selected from the group consisting of CuCl, CuCl2, CuBr, CuBr2, CuOOC.CH3, Cu(OOC.CH3)2, Cu2SO4, CuSO4 and mixtures thereof, with a halogen containing Lewis acid selected from the group consisting of FeCl3, AlCl3, AlBr3, ZnCl2, TiCl4, BeCl2, ZrCl4, SbCl5 and BiCl3 at temperatures within the range of from 20* to 200* C. wherein the copper salt in the mixture is present in proportionate amounts equal to or less than the Lewis acid component.
Abstract:
THE SUBJECT OF THE INVENTION IS A PROCESS FOR THE MANUFACTURE OF METHYL OR ETHYL CHLORIDE FROM METHYL OR ETHYL ACETAURE BY A REACTION WITH HYDROGEN CHLONIDE IN THE VAPOR PHASE AT TEMPERATURE WITHIN THE RANGE OF FROM 120* TO 360*C. AND UNDER PRESURES OF FROM 0 TO 20 ATMOSPHERES GAUGE, USING AS CATALYST TECHNICALLY PURE SILICIC ACID WHICH WAS IMPREGNATED WITH FROM 5 TO 15% BY WEIGHT OF ZINC CHLORIDE. THE SILICIC ACID SHOULD HAVE A SPECIFIC SURFACE OF FROM 20 TO 800 M.2 PER GRAM AND AN AVERAGE PORE DIMETER OF FROM 5 TO 2,000 A.