| 摘要 |
Detergent alkylate is obtained by alkylating an aromatic hydrocarbon with a mixture of a minor amount of straight chain C6-C20 olefines with a major amount of straight chain C6-C20 paraffins in the presence of anhydrous hydrogen fluoride at 30-70 DEG C. The preferred alkylating mixture is obtained by dehydrogenating a straight chain paraffin and unreacted paraffin is separated from the alkylate and recycled to the dehydrogenation. Normal paraffins are separated from a hydrocarbon mixture by molecular siev adsorption or urea adduction and dehydrogenated at 400-650 DEG C., up to ten atmospheres with an LHSV of 0.1-10 over a transition metal of Group 1, 4, 5, 6 or 8 or its oxide to effect up to 50% conversion. Alkylation is effected with an aromatic/olefin mol. ratio of 3-20:1 and an olefin/catalyst mol. ratio of 1:5-25, a reaction time of 5-60 minutes and a pressure up to 100 atmospheres to maintain the liquid phase.
|
