The catalytic process obtains a methyl tertiary butyl ether by feeding methanol over a solid catalyst section in a rectifying column having vertical layers in which a catalyst material is enclosed. At least one of the enclosing walls is impermeable to the catalyst material while being permeable to the methanol. A reactant comprising a mixture of saturated and unsaturated 4 carbon-chain hydrocarbons is fed into the solid catalyst section with methanol to produce a methyl tertiary butyl ether.
This is a division of application Ser. No. 08/092,504 filed Jul. 15, 1993, now U.S. Pat. No. 5,433,082 which is a divisional application of U.S. Ser. No. 499,367, filed May 31, 1990 now U.S. Pat. No. 5,417,938.
Priority Data
Sep 02, 1988 [CH] 93295/88 Feb 17, 1989 [CH] 0057/89
This invention relates to a continuous process for the preparation of silane by catalytic disproportionation of trichlorosilane in a reactive/distillative reaction zone having a catalyst bed of catalytically active solid.
