A process is provided for the electrochemical generation of N2O5 in HNO3, whereby a solution of N2O4 in HNO3 is electrolysed. An electrolytic cell for the electrolysis is also provided, having substantially parallel electrodes in electrode compartments separated by a cell membrane. The anode is of Pt, Nb, Nb/Ta 40:60 alloy with a Pt coating. The cathode is Pt, stainless steel, Nb, Nb/Ta 40:60 alloy. The cell membrane is preferably a perfluorinated cationic exchange membrane. In use N2O5 forms in the anolyte and N2O4 increases in the catholyte. A suitable design of cell and its use in a single- or multistage electrolysis process is also described.
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机译：提供了一种用于在HNO 3中电化学生成N 2 O 5的方法，由此使N 2 O 4在HNO 3中的溶液被电解。还提供了一种用于电解的电解池，其在由电池膜隔开的电极室中具有基本平行的电极。阳极是具有Pt涂层的Pt，Nb，Nb / Ta 40:60合金。阴极是Pt，不锈钢，Nb，Nb / Ta 40:60合金。细胞膜优选是全氟阳离子交换膜。在使用中，N2O5在阳极电解液中形成，N2O4在阴极电解液中增加。还描述了电池的合适设计及其在单阶段或多阶段电解过程中的用途。
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