Conversion of Environmental Pollutants to Nontoxic Compounds or Useful Raw Materials Using a New Electrochemical Hydrogenation System

在本研究中，我们研究了新的环境污染物的转化过程，其可靠的处理还没有发现，无毒化合物或有用的原料，使用我们开发的连续加氢系统。研究结果如下：1.我们成功地将具有绿色房屋效应的NO转化为无毒产品N^2。在Pd黑/Pd片上定量产生N^2。利用该系统成功地将污染水体的硝酸盐转化为重要的工业原料NH_8。在Ni/Pd黑/Pd片上以高电流效率选择性地产生NH_8.利用该体系对阿马兰斯红偶氮染料进行了脱色实验。在Pt/Pd黑/Pd片上，脱色速率大大加快.我们成功地将对氯甲苯作为芳香族卤素化合物的模型，其可靠的处理方法尚未发现，使用我们的系统，甲苯和盐酸作为工业上重要的原料。5.我们成功地减少钯的总量通过钯化的一面的阳离子或阴离子交换膜。用钯化离子交换膜在高电流效率下对苯乙烯进行加氢制乙苯。

In the present study, we investigated new conversion processes of environmental pollutants, whose reliable treatment has never been found yet, to nontoxic compounds or useful raw materials using the successive hydrogenation system developed by us. The results are summarized as follows ;1. We succeeded the conversion of NO having green house effect to N^2 as a nontoxic product using our system. N^2 was quantitatively produced on a Pd black/Pd sheet.2. We succeeded the conversion of nitrate causing water pollution to NH_8 as an industrially important raw material using our system. NH_8 was selectively produced on a Ni/Pd black/Pd sheet at high current efficiency.3. We succeeded the decoloration of amaranth as an azo dye using our system. The decoloration rate was greatly accelerated on a Pt/Pd black/Pd sheet.4. We succeeded the conversion of p-chlorotoluene as a model of aromatic halogen compounds, whose reliable treatment has never been found yet, to toluene and hydrochloric acid as industrially important raw materials using our system.5. We succeeded to reduce the total amount of Pd by palladizing a side of a cation or anion exchange membrane. Styrene was hydrogenated to ethylbenzene at high current efficiency using the palladized ion exchange membranes.