公开(公告)号：US3486846A

公开(公告)日：1969-12-30

申请号：US3486846D

申请日：1966-12-07

Applicant: BAYER AG

Inventor： ZIRNGIBL HANS ,  GERKEN RUDOLF ,  HEINE HEINZ ,  WEISE JOHANNES

IPC: C01B21/14 ,  C01C1/24

CPC classification number: C01B21/1418

公开(公告)号：US3663166A

公开(公告)日：1972-05-16

申请号：US3663166D

申请日：1970-07-30

Applicant: BAYER AG

Inventor： WEISE JOHANNES ,  ZIRNGIBL HANS ,  HEINE HEINZ

IPC: B01J23/42 ,  C01B21/14 ,  C01G1/00 ,  B01J11/00 ,  C01C1/00

CPC classification number: B01J23/42 ,  C01B21/1418

Abstract: Improved platinum catalyst with high life period, activity and selectivity for the production of hydroxylammonium salts by the reduction of nitric oxide with hydrogen, the catalyst being obtained by hydrolyzing the water soluble platinum compound at a pH of 4.5 to 9.0 and at a temperature of 20* to 100* C. in the presence of a carrier which is insoluble in strong acids, thereby precipitating platinum oxide hydrate onto said carrier in finely divided form and thereafter reducing the platinum oxide hydrate to metallic platinum.

Abstract translation: 改进的铂催化剂，具有高寿命期，通过用氢还原一氧化氮生产羟铵盐的活性和选择性，该催化剂是通过在4.5至9.0的温度和20℃的温度水解水溶性铂化合物而得到的 在不溶于强酸的载体存在下，在100℃下，将铂氧化物水合物以细碎形式沉淀到所述载体上，然后将氧化铂水合物还原为金属铂。

公开(公告)号：CA878479A

公开(公告)日：1971-08-17

申请号：CA878479D

Applicant: BAYER AG

Inventor： WEISE JOHANNES ,  HEINE HEINZ ,  ZIRNGIBL HANS

公开(公告)号：CA841525A

公开(公告)日：1970-05-12

申请号：CA841525D

Applicant: BAYER AG

Inventor： MEYER HORST ,  HEINE HEINZ ,  GERKEN RUDOLF ,  WEISE JOHANNES ,  DORNEMANN ALEXANDER ,  ZIRNGIBL HANS

公开(公告)号：CA836982A

公开(公告)日：1970-03-17

申请号：CA836982D

Applicant: BAYER AG

Inventor： GERKEN RUDOLF ,  DORNEMANN ALEXANDER ,  WEISE JOHANNES ,  MEYER HORST ,  HEINE HEINZ ,  ZIRNGIBL HANS

公开(公告)号：CA811651A

公开(公告)日：1969-04-29

申请号：CA811651D

Applicant: BAYER AG

Inventor： HEINE HEINZ ,  ZIRNGIBL HANS ,  GERKEN RUDOLF ,  WEISE JOHANNES

公开(公告)号：GB1179120A

公开(公告)日：1970-01-28

申请号：GB4279669

申请日：1966-12-16

Applicant: BAYER AG

Inventor： ZIRNGIBLE HANS ,  DORNEMANN ALEXANDER ,  GERKEN RUDOLF ,  HEINE HEINZ ,  MEYER HORST ,  WEISE JOHANNES

IPC: C01B21/14

Abstract: 1,179,120. Pt on C catalysts. FARBENFABRIKEN BAYER A.G. 16 Dec., 1966 [28 Dec., 1965; 28 Nov., 1966], No. 42796/69. Divided out of 1,179,119. Heading B1E. Catalysts comprising finely divided Group VIII precious metal supported by a mixture of graphite and 10-50% activated carbon are used in the production of hydroxylammonium salts by reduction of NO with hydrogen in aqueous acid solution. In examples Pt is supported on 80% graphite and 20% activated carbon.