ESR spectrum show that reduced of heteropoly acid was occurred in vapor-phase nitration reaction of benzene.
ESR谱表明：杂多酸催化剂的钨在苯气相硝化反应中发生了还原反应。
At Iast, the possibility of the 1-tert-octyl-3-hydroxyl azetidine's hydrochloric salt methyl-sulfuric-acyl reaction and nitration reaction is studied.
最后，研究了叔辛胺和环氧氯丙烷反应得到的1-叔辛基-3-羟基氮杂环丁烷盐酸盐的甲磺酰化和硝化的反应性。
The system based on the pledged average total nitrogen removal rate of 98.2%, obtained good short-cut nitration effect, the subnitration of each aerobic reaction was all above 95%.
系统在保证平均总氮去除率98.2%的基础上，获得了较好的短程硝化效果，各好氧反应段的亚硝化率均在95%以上。
Like other biological treatment process, the purified reaction of RBC includes: oxidation and decomposed of organic substances, nitration, denitrification and so on.
与其他生物处理工艺相同，生物转盘的净化反应包括：有机物的氧化分解、硝化、脱氮等。
The reaction path for nitration of benzene can be appraised. Additionally, some experiment phenomena in connection with this reaction may be explained, too.
探讨了苯硝化反应的途径，并解释了有关此反应的某些实验现象。
This paper studies some clean process used for the nitration of aromatic hydrocarbon, including liquid phase reaction and gas phase reaction.
介绍了当前研究开发中的几种芳烃的清洁硝化工艺，包括液相硝化和气相硝化。
Alternatively, the 4-amino compounds are prepared by first nitration and then reduction of the appropriate steroid under appropriate reaction conditions.
另外，通过首先硝化，然后在适当反应条件下还原适当的甾类化合物制备4 -氨基化合物类。
In the reaction of acetylation and nitration 1, 2? Dichloroethane was used as solvent.
在乙酰化、硝化反应中引入了1,2 -二氯乙烷溶剂。
METHOD: It was synthesized from methyl 5-chloro-2-hydroxyl benzoic acid via nine-step reaction with nitration, reduction, etc.
方法：以5 氯2 羟基苯甲酸甲酯为原料，经硝化、还原等九步反应合成。
METHOD: It was synthesized from methyl 5-chloro-2-hydroxyl benzoic acid via nine-step reaction with nitration, reduction, etc.
方法：以5 氯2 羟基苯甲酸甲酯为原料，经硝化、还原等九步反应合成。
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