公开(公告)号：US3666684A

公开(公告)日：1972-05-30

申请号：US3666684D

申请日：1970-06-01

申请人： PETRO TEX CHEM CORP

发明人： KOSLOSKY FRANK JR

IPC分类号： B01J23/00 ,  B01J23/76 ,  B01J37/22 ,  C07C5/48 ,  C07C5/56 ,  B01J11/22 ,  B01J11/64 ,  C07C5/18

CPC分类号： C07C5/48 ,  B01J23/005 ,  B01J23/76 ,  B01J37/22 ,  C07C5/56 ,  Y02P20/584 ,  Y10S585/906

摘要： A partially deactivated metal ferrite oxidative dehydrogenation catalyst can be reactivated by contacting the catalyst with a relatively large amount of halogen. For example the yield from a Mg ferrite used in the oxidative dehydrogenation of n-butenes to butadiene had declined from 55.1 to 52.4 percent after 1,350 hours on stream. The catalyst was treated with up to 6,800 ppm of chlorine and after termination of the halogen and removal of residual halogen the yield was 55.9 percent. It was not necessary to remove the catalyst for activation or to stop the oxidative dehydrogenation.

摘要翻译： 部分失活的金属铁氧体氧化脱氢催化剂可以通过使催化剂与较大量的卤素接触而再活化。 例如，在正丁烯到丁二烯的氧化脱氢中使用的Mg铁氧体的产率在流动1,350小时后从55.1下降到52.4％。 催化剂用高达6,800 ppm的氯处理，卤素终止后除去残留卤素，产率为55.9％。 不需要除去活化催化剂或停止氧化脱氢。