公开(公告)号：US3986941A

公开(公告)日：1976-10-19

申请号：US563897

申请日：1975-03-31

申请人： Taijiro Okabe ,  Eiichi Narita ,  Yoshiharu Kobayashi ,  Muneo Mita

发明人： Taijiro Okabe ,  Eiichi Narita ,  Yoshiharu Kobayashi ,  Muneo Mita

IPC分类号： C01G45/12 ,  C25B1/28

CPC分类号： C25B1/28

摘要： A high-pure alkali permanganate is produced at a high yield by electrolytically oxidizing at a temperature of higher than 60.degree. C a caustic alkali slurry of manganese dioxide and/or an alkali penta-valent manganate having a caustic alkali concentration of 10 to 25% by weight.

公开(公告)号：US4466828A

公开(公告)日：1984-08-21

申请号：US551499

申请日：1983-11-14

申请人： Yasukatsu Tamai ,  Taijiro Okabe ,  Akira Tomita

发明人： Yasukatsu Tamai ,  Taijiro Okabe ,  Akira Tomita

IPC分类号： C22B23/00 ,  C01G53/12 ,  C10J3/00 ,  C22B3/14 ,  C22B23/02

CPC分类号： C01G53/12 ,  C10J3/00 ,  C10J3/78 ,  C22B23/021 ,  C22B23/0446 ,  C22B3/24 ,  C10J2300/093 ,  C10J2300/0946 ,  C10J2300/0956 ,  C10J2300/0959 ,  C10J2300/0966 ,  C10J2300/0976 ,  C10J2300/0986 ,  C10J2300/1807 ,  Y02P10/214 ,  Y02P10/234

摘要： The present invention concerns a process for smelting nickel which comprises treating nickel-containing material with a reducing gas to reduce the nickel component contained in the nickel-containing material and thereby produce metallic nickel; soaking the thus-obtained material in an ammoniacal aqueous ammonium salt solution and treating it with oxygen or an oxygen-containing gas in the presence of free ammonia in order to produce an aqueous nickel ammine salt solution; treating coal with the thus-produced aqueous nickel ammine salt solution so that the coal becomes impregnated with the nickel ammine salt; separating and recovering ammonia from the thus-treated coal; gasifying catalytically the coal containing the nickel compound in the presence of a gasifying agent, thereby producing a reducing gas and a solid residue; employing part of the thus-produced reducing gas for the treatment of the nickel-containing material; and separating and recovering metallic nickel from the solid residue.

摘要翻译： 本发明涉及一种熔炼镍的方法，其中包括用还原气体处理含镍材料以减少含镍材料中所含的镍成分，从而产生金属镍; 将由此获得的材料浸泡在氨水铵盐溶液中，并在游离氨存在下用氧气或含氧气体处理，以产生镍氨水溶液; 用如此生产的含水镍铵盐溶液处理煤，使煤浸入镍铵盐中; 从这样处理的煤中分离和回收氨; 在气化剂存在下气化催化含镍化合物的煤，从而产生还原气体和固体残渣; 使用一部分如此生产的还原气体来处理含镍材料; 并从固体残渣中分离和回收金属镍。

公开(公告)号：US4001372A

公开(公告)日：1977-01-04

申请号：US592318

申请日：1975-07-01

申请人： Taijiro Okabe ,  Akitsugu Okuwaki ,  Shigetoshi Nakabayashi

发明人： Taijiro Okabe ,  Akitsugu Okuwaki ,  Shigetoshi Nakabayashi

IPC分类号： B01D53/56 ,  C01B21/00

CPC分类号： B01D53/56

摘要： There is disclosed a method for removing oxides of nitrogen from gaseous mixtures by contacting the gaseous mixtures with an alkaline solution of an alkali metal manganate.