1.由苯(ben)与(yu)丙(bing)(bing)烯进(jin)行(xing)烷基(ji)化(hua)(hua)反(fan)应(ying)(ying)(ying)(ying)而(er)得。通(tong)常(chang)采(cai)用(yong)三(san)氯(lv)化(hua)(hua)铝为(wei)催(cui)化(hua)(hua)剂(ji)、氯(lv)化(hua)(hua)氢为(wei)促进(jin)剂(ji),反(fan)应(ying)(ying)(ying)(ying)在(zai)常(chang)压和(he)95℃左右进(jin)行(xing)。除生(sheng)(sheng)成(cheng)异(yi)(yi)(yi)(yi)丙(bing)(bing)苯(ben)外,还有二(er)异(yi)(yi)(yi)(yi)丙(bing)(bing)苯(ben)、三(san)异(yi)(yi)(yi)(yi)丙(bing)(bing)苯(ben)等多烷基(ji)副产(chan)物(wu)生(sheng)(sheng)成(cheng)。为(wei)了减少副反(fan)应(ying)(ying)(ying)(ying)可(ke)采(cai)用(yong)过(guo)量的(de)(de)苯(ben),苯(ben)与(yu)丙(bing)(bing)烯的(de)(de)摩(mo)尔比为(wei)3左右;三(san)氯(lv)化(hua)(hua)铝在(zai)反(fan)应(ying)(ying)(ying)(ying)液(ye)中(zhong)(zhong)(zhong)的(de)(de)含(han)量为(wei)3%-8%;在(zai)低(di)的(de)(de)丙(bing)(bing)烯浓(nong)度下进(jin)行(xing)反(fan)应(ying)(ying)(ying)(ying)。为(wei)提(ti)(ti)高(gao)反(fan)应(ying)(ying)(ying)(ying)器的(de)(de)生(sheng)(sheng)产(chan)能力(li)(li),减少尾气(qi)中(zhong)(zhong)(zhong)苯(ben)的(de)(de)损失,可(ke)将(jiang)反(fan)应(ying)(ying)(ying)(ying)压力(li)(li)提(ti)(ti)高(gao)到0.5-0.6MPa。反(fan)应(ying)(ying)(ying)(ying)所得的(de)(de)烷基(ji)化(hua)(hua)液(ye)经冷却、沉淀(dian)后(hou)分离(li)出(chu)的(de)(de)固体(三(san)氯(lv)化(hua)(hua)铝与(yu)多异(yi)(yi)(yi)(yi)丙(bing)(bing)苯(ben)络合物(wu))循环(huan)使用(yong)。烷基(ji)化(hua)(hua)液(ye)则经水解、中(zhong)(zhong)(zhong)和(he)、精(jing)馏(liu)而(er)得异(yi)(yi)(yi)(yi)丙(bing)(bing)苯(ben)。另一种气(qi)相(xiang)法(fa)(fa)工(gong)艺过(guo)程,是将(jiang)气(qi)态苯(ben)和(he)丙(bing)(bing)烯通(tong)过(guo)载于氧化(hua)(hua)铝或(huo)硅酸(suan)铝上(shang)的(de)(de)磷酸(suan)催(cui)化(hua)(hua)床层,进(jin)行(xing)催(cui)化(hua)(hua)烷基(ji)化(hua)(hua),反(fan)应(ying)(ying)(ying)(ying)压力(li)(li)1.5-40MPa,温(wen)度约(yue)250℃。目前工(gong)业上(shang)生(sheng)(sheng)产(chan)异(yi)(yi)(yi)(yi)丙(bing)(bing)苯(ben)以(yi)上(shang)述(shu)液(ye)相(xiang)法(fa)(fa)为(wei)主(zhu)。 2.其(qi)制备(bei)方法(fa)(fa)是将(jiang)苯(ben)和(he)丙(bing)(bing)烯在(zai)催(cui)化(hua)(hua)剂(ji)三(san)氯(lv)化(hua)(hua)铝存(cun)在(zai)下一起(qi)进(jin)入烃(ting)化(hua)(hua)塔,苯(ben)中(zhong)(zhong)(zhong)含(han)有少量氯(lv)化(hua)(hua)氢作为(wei)助催(cui)化(hua)(hua)剂(ji),反(fan)应(ying)(ying)(ying)(ying)温(wen)度95～100℃,反(fan)应(ying)(ying)(ying)(ying)产(chan)物(wu)中(zhong)(zhong)(zhong)含(han)异(yi)(yi)(yi)(yi)丙(bing)(bing)苯(ben)30%～35%,多异(yi)(yi)(yi)(yi)丙(bing)(bing)苯(ben)10%～15%。反(fan)应(ying)(ying)(ying)(ying)液(ye)冷却,沉降分离(li),分出(chu)三(san)氯(lv)化(hua)(hua)铝在(zai)多异(yi)(yi)(yi)(yi)丙(bing)(bing)苯(ben)中(zhong)(zhong)(zhong)的(de)(de)配(pei)合物(wu),除去(qu)乙(yi)苯(ben),所得粗异(yi)(yi)(yi)(yi)丙(bing)(bing)苯(ben)经蒸(zheng)馏(liu)而(er)得成(cheng)品。