发明名称 |
Process for the preparation of hydroxylammonium |
摘要 |
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. <IMAGE> |
申请公布号 |
EP1275616(A1) |
申请公布日期 |
2003.01.15 |
申请号 |
EP20010202671 |
申请日期 |
2001.07.11 |
申请人 |
DSM IP ASSETS B.V. |
发明人 |
BENNEKER, ARNO;BROUWERS, JOHANNES ANTONIUS LEONARDUS;VAN DORTMONT, GODEFRIDUS MARIA |
分类号 |
B01D53/22;C01B21/14;C01C1/04;(IPC1-7):C01B21/14 |
主分类号 |
B01D53/22 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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