VERFAHREN ZUR SELEKTIVEN HERSTELLUNG P-SUBSTITUIERTER BENZOLE

摘要

1536827 Producing para dialkylbenzenes MOBIL OIL CORP 29 June 1977 [12 July 1976 3 May 1977] 27225/77 Heading C5E para Dialkylbenzenes are selectively produced by alkylating toluene or ethylbenzene with a methylating agent (e.g. methanol) or an ethylating agent (e.g. ethylene) at 300-750‹ C. in the presence of the crystalline aluminosilicate ZSMÀ23 (defined) as catalyst. The zeolite is preferably in the H-form and may be composited with a porous matrix such as alumina.