| 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 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 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;ANDE) PASSING THE HYDROGEN-ENRICHED GAS TO A HYDROGENATION ZONE. |
