公开(公告)号：US3965251A

公开(公告)日：1976-06-22

申请号：US384846

申请日：1973-08-02

申请人： Hiroshi Shin ,  Junichiro Sugano ,  Tadashi Yoshii ,  Kichiro Iwamoto ,  Yasuhisa Kuriyama ,  Minoru Kakuda

发明人： Hiroshi Shin ,  Junichiro Sugano ,  Tadashi Yoshii ,  Kichiro Iwamoto ,  Yasuhisa Kuriyama ,  Minoru Kakuda

IPC分类号： C01B15/023 ,  C01B15/02

CPC分类号： C01B15/023

摘要： A working solution comprising anthraquinone and its derivatives, used for the production of hydrogen peroxide on becoming degraded by formation of non-effective anthraquinone is generated by an auto-oxidation process employing anthraquinone, which comprises:Contacting, at a temperature of below 130.degree.C., and in the presence of a catalyst comprising a metal selected from a platinum group and supported on a carrier, said degraded working solution, which comprises non-effective anthraquinone and tetrahydroanthraquinone with an olefinic compound whose hydrogenation product is gaseous at said contact temperature andSubsequently, contacting the thus treated working solution, at a temperature above 130.degree.C., and in the presence of a catalyst comprising a metal selected from the platinum group and supported on a carrier, with an olefinic compound whose hydrogenation product is gaseous at said contact temperature,Said method being characterized by the fact that at a temperature below 130.degree.C., the regeneration of non-effective anthraquinone is accelerated much faster than the dehydrogenation reaction of tetrahydroquinone and therefore, at a pont in time, when all non-effective anthraquinone has been converted to anthraquinone, the temperature can be raised above 130.degree.C. to permit dehydrogenation of said tetrahydroanthraquinone without incurring any impedance of the dehydrogenation reaction.

摘要翻译： 通过使用蒽醌的自动氧化法，产生用于通过形成非有效蒽醌而降解过氧化氢的蒽醌及其衍生物的工作溶液，其包括：