Process for the preparation of alkyl tert-butyl ethers and di-n-butene from field butanes

摘要

Coupled production of di-n-butene (I) and alkyl tert.-butyl ether (II) from field butane comprises (a) separating the field butane into n-butane and iso-butane; (b) dehydrogenation of n-butane to n-butene, oligomerisation of n-butene and separation of (I) from the oligomer mixture; and (c) dehydrogenation of iso-butane to iso-butene and etherification to (II) with an alkanol.