Die Umsetzung von 1,1-Dimethylhydrazin mit Dimethylchloramin

Utvary, K.; Vitovec, G.; Kren, R. M.; Sisler, Harry H.

doi:10.1007/bf00912950

Cited by 7 publications

(3 citation statements)

References 3 publications

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“…The oxidation of UDMH by DMC is one of the probable interactions that take place during the synthesis of UDMH by the indirect Raschig process. This reaction was the subject of a former study that focused only on the characterization of the products 68. In particular, formaldehyde dimethylhydrazone (FDMH) is formed.…”

Section: Resultsmentioning

confidence: 99%

“…The second stage, that is, the transformation of dimethyldiazene into FDMH, is common to the oxidation of UDMH by various oxidants (NH 2 Cl, DMC, O 2 , etc.) 68,69,71. It was the subject of an exhaustive laboratory study: the diazene–hydrazone rearrangement corresponds to the first‐order kinetics compared to diazene and displays basic catalysis.…”

Section: Resultsmentioning

confidence: 99%

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Ammonia–dimethylchloramine system: Kinetic approach in an aqueous medium and comparison with the mechanism involving liquid ammonia

Stephan

Pasquet

Elkhatib

et al. 2008

Int J of Chemical Kinetics

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. Ammoniadimethylchloramine system: kinetic approach in an aqueous medium and comparison with the mechanism involving in liquid ammonia. International Journal of Chemical Kinetics, Wiley, 2008, 40 (6) veronique.pasquet@univ-lyon1.fr}. ABSTRACTAfter an exhaustive study of the system ammonia-dimethylchloramine in liquid ammonia, it was interesting to compare the reactivity of this system in liquid ammonia with the same systeme in an aqueous medium. Dimethylchloramine prepared in a pure state, undergoes dehydrohalogenation in an alkaline medium: the principal products formed are N- A global model which explains the mechanisms both in an anhydrous and in an aqueous medium was elaborated.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Ammonia–dimethylchloramine system: Kinetic approach in an aqueous medium and comparison with the mechanism involving liquid ammonia

Stephan

Pasquet

Elkhatib

et al. 2008

Int J of Chemical Kinetics

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“…Nowadays disposal technology of wastewater containing UDMH have plenty of disadvantages, such as high energy consuming, low safety factor, numerous secondary contamination, strong toxicity, and so on. For example, the oxidation method with chloramine used for the removal of UDMH from water may form N-nitrosodimethylamine (CH 3 ) 2 NN=O (NDMA) as an intermediate of UDMH oxidation [2]. NDMA is even more toxic than UDMH [3].…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on Combined Process of EOW and MBR for Treatment of UDMH Wastewater

Xia¹,

Wang²,

Liu

2011

AMR

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The combined process of Electrolyzed oxidizing water(EOW)and membrane bioreactor(MBR)was applied to treat the UDMH wastewater, and its treatment efficiency was compared with that by MBR alone．In the combined process, the treatment efficiency of UDMH wastewater is better than MBR alone. When the influent COD and UDMH are 800 to 1000 mg•L-1and 300 mg•L-1, the effluent COD and UDMH are about 55 mg•L-1and 0.3 to 1.5 mg•L-1respectively, close the demand of the Discharge standard of water pollutants for space propellant．In the MBR process alone，the effluent COD and UDMH are about 90 mg•L-1and 45 mg•L-1respectively, which worse than the combined process EOW-MBR, especially the effluent UDMH far beyond the demand of the Discharge standard of water pollutants for space propellant．

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Introduction

Sisler¹

1988

Inorganic Reactions and Methods

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Die Umsetzung von 1,1-Dimethylhydrazin mit Dimethylchloramin

Cited by 7 publications

References 3 publications

Ammonia–dimethylchloramine system: Kinetic approach in an aqueous medium and comparison with the mechanism involving liquid ammonia

Ammonia–dimethylchloramine system: Kinetic approach in an aqueous medium and comparison with the mechanism involving liquid ammonia

Experimental Study on Combined Process of EOW and MBR for Treatment of UDMH Wastewater

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