Title:
ヒドロキシルアンモニウム塩の製造法
Document Type and Number:
Japanese Patent JP4335671
Kind Code:
B2
Abstract:
The invention relates to a process for the preparation of hydroxylammonium, said process comprising the steps of: a) feeding gaseous hydrogen to a reaction mixture, said reaction mixture comprising an aqueous reaction medium and a gaseous phase; b) catalytically reducing, in said reaction mixture, nitrate or nitrogen oxide with hydrogen to form the hydroxylammonium; c) withdrawing a gas mixture from the reaction mixture, said gas mixture comprising gaseous hydrogen and gaseous non-hydrogen compounds; d) separating at least part of the gaseous non-hydrogen compounds from the gas mixture to obtain a hydrogen-enriched gas; and e) passing the hydrogen-enriched gas to a hydrogenation zone. The invention further relates to a process for separating a gas mixture into a hydrogen-enriched gas and a hydrogen-depleted gas wherein the molar fraction of N2O in the hydrogen-depleted gas in less than 0.08.
Inventors:
Bennecker, arno, herald
Blowwells, Johannes, Antonius, Leonardus
Van Dortmont, Godefridas, Maria
Blowwells, Johannes, Antonius, Leonardus
Van Dortmont, Godefridas, Maria
Application Number:
JP2003512147A
Publication Date:
September 30, 2009
Filing Date:
July 11, 2002
Export Citation:
Assignee:
DSM IP ASSETS B.V.
International Classes:
B01D53/22; C01B21/14; B01J23/62; C01C1/04
Domestic Patent References:
| JP9183614A | ||||
| JP2002513373A | ||||
| JP1219009A | ||||
| JP52074598A | ||||
| JP52007900A | ||||
| JP52007899A | ||||
| JP59109226A | ||||
| JP7500081A | ||||
| JP49040360B1 |
Attorney, Agent or Firm:
Yuichi Yamada
Ikeda adult
Masakazu Noda
Yoshinori Shimizu
Ikeda adult
Masakazu Noda
Yoshinori Shimizu