Production of aliphatic olefin, amine, aldehyde and alcohol and alkylaryl compounds and sulfonate useful in detergents involves catalytic addition of butenes to butadienes and isomerization to conjugated diene with same carbon number

摘要

Production of 12, 16, 20, 24 C aliphatic compounds comprises preparing 50-100 (wt.)% linear, 4 C olefin mixture of 50-100% butenes and butadienes with olefin/diene molar ratio (1-10):1; catalytic addition of butenes to dienes to increase carbon number by 4; catalytic isomerization to conjugated dienes with same carbon number; separating dienes with 4n C atoms; selective hydrogenation to olefins or conversion to amines, aldehydes or alcohols. Production of aliphatic olefins, amines, aldehydes or alcohols with 4n carbon (C) atoms, where n = 3, 4, 5 or 6, comprises (a1) preparing a 4 C olefin mixture containing (wt.%) 50-100 % butenes and butadienes with 50-100 % linear olefins, and passing this mixture, optionally mixed with buta-1,3-diene to an olefin/diene molar ratio of (1-10):1, to (b1); (b1) addition of the butenes to the dienes to increase the C number by 4 in the presence of a basic catalyst and passing the mixture to (c1); (c1) isomerization of the dienes in the mixture to conjugated dienes with unchanged C number on an isomerization catalyst and passing the mixture to (d1); (d1) separating the dienes with 4n C atoms from the mixture and passing them to (e1) and (partly) recycling the remaining dienes in the mixture with butenes to (b1); (e1) selective hydrogenation of the dienes to olefins or reaction to amines, aldehydes or alcohols. An independent claim is also included for production of aliphatic 12 C olefins, amines, aldehydes or alcohols.