Alkylation of aromatic amines with olefins on partially dealuminated zeolites
申请人:AIR PRODUCTS AND CHEMICALS, INC.
公开号:EP0240018A2
公开(公告)日:1987-10-07
This invention pertains to an improved process for the alkylation of aromatic amines. The improvement resides in the use with particular aromatic amines and olefins a catalyst which is a partially dealuminated zeolite having an increased silica to alumina molar ratio over the original zeolite. The partially dealuminated zeolites are preferably exchanged with hydrogen or rare earth metal. The partially dealuminated zeolites are particularly effective for producing an alkylated aromatic amine where the alkyl group is ortho to the amine. Partially dealuminated H-mordenite and partially dealuminated HY faujasite are very effective for the alkylation of aniline with propylene.
本发明涉及一种改进的芳香胺烷基化工艺。改进之处在于对特定的芳香胺和烯烃使用一种催化剂,这种催化剂是一种部分脱铝的沸石,其二氧化硅与氧化铝的摩尔比比原来的沸石有所增加。部分脱铝沸石最好与氢或稀土金属进行交换。部分脱铝沸石对生产烷基化芳香胺特别有效,其中烷基是胺的正交基。部分脱铝的 H-mordenite 和部分脱铝的 HY faujasite 对苯胺与丙烯的烷基化非常有效。
Alkylation of aromatic amines in the presence of non-zeolitic molecular sieves
申请人:AIR PRODUCTS AND CHEMICALS, INC.
公开号:EP0245797A2
公开(公告)日:1987-11-19
This invention relates to a process for producing ring alkylated aromatic amines. In accordance with this process an aromatic amine is reacted with an olefin, diolefin or an alcohol using a non-zeolitic molecular sieve as a catalyst. Under the conditions of the process the catalyst is extremely active, and with aromatic amines that are capable of alkylation at the ortho and para positions, high selectivity to the ortho alkylated isomer can be achieved.