异丁烯在工(gong)业上几乎(hu)都是(shi)(shi)由炼(lian)(lian)厂(chang)气(qi)和裂解C4馏分中(zhong)获得。炼(lian)(lian)厂(chang)气(qi)中(zhong)异丁烯的含量一(yi)般为5%-12%,裂解C4,馏分中(zhong)一(yi)般为20%-30%。少数情况下用氧(yang)化(hua)铬-氧(yang)化(hua)铝催化(hua)剂(ji)由异丁烷(wan)催化(hua)氢而制得。以丙烯和异丁烷(wan)为原料用共氧(yang)化(hua)法(fa)生产(chan)(chan)环氧(yang)丙烷(wan)时,异丁烯是(shi)(shi)其联产(chan)(chan)物(wu)。