Method for manufacturing tert-butylamine

摘要

The invention relates to a method for manufacturing tert-butylamine from isobutene and ammonia in the presence of a silica alumina catalyst. The catalyst is in acid form, has an Si/Al ratio that has been adjusted by steam dealumination, has a crystallinity of at least 95%, and has an Na2O content of less than 0.2 wt. %. The reaction is preferably conducted in the gas phase, with unreacted ammonia and unreacted isobutene being recycled into the reaction process. The selectivity of the catalyst for the formation of tert-butylamine is at least 99.5%.