In search of efficient catalysts and appropriate reaction conditions for gas phase nitration of benzene

Anton P. Koskin; Ilya V. Mishakov; Aleksey A. Vedyagin

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In search of efficient catalysts and appropriate reaction conditions for gas phase nitration of benzene

机译：为苯的气相硝化寻找有效的催化剂和合适的反应条件

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Abstract The present paper is dedicated to the development of a method for the nitrobenzene production using solid acid catalysts, as an alternative to industrial nitration, based on a mixture of concentrated acids. The influence of key parameters of the nitration process (temperature, reagent flow rate, nitrating agent concentration etc.) on the conversion of the initial substrate, the degree of decomposition of nitric acid and the quantity of resulting oxygenates was studied. Recommendations for the selection of effective catalytic systems (high content of Br?nsted acid sites with Ho?

机译：摘要本文致力于开发一种基于固体酸催化剂的硝基苯生产方法，该方法可基于浓酸的混合物替代工业硝化。研究了硝化过程的关键参数（温度，试剂流速，硝化剂浓度等）对初始底物转化率，硝酸的分解程度和生成的含氧量的影响。提出了有关选择有效催化体系的建议（高含量的Ho？<？4的布朗斯台德酸位，高的比表面和对HNO3的耐受性），以及工艺反应的最佳条件（温度为200°C，水溶液发现浓度为30wt％的硝酸溶液，“硝酸：苯”之比α＝β0.76）。提出了一种在不卸载催化剂的情况下再生催化活性的方法。例如，在双模式硝化/再生过程中对MoO3 / SiO2样品进行了测试，这使我们能够提高试剂的流速，并获得高达STYη=？4.09？g /（gcat？）的催化剂效率。 H）。在相同条件下测试了几种最有前途的催化剂（MoO3 / SiO2，WO3 / ZrO2和Nafion /载体复合材料）。

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《Resource-Efficient Technologies》 |2016年第3期|共8页
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Anton P. Koskin; Ilya V. Mishakov; Aleksey A. Vedyagin;
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1. Metal salts with highly electronegative cations as efficient catalysts for the liquid-phase nitration of benzene by NO2 to nitrobenzene [J] . Zhou Shenghui, You Kuiyi, Yi Zhengming, Frontiers of chemical science and engine . 2017,第2期

机译：具有高负电性阳离子的金属盐可作为有效的催化剂，用于将NO2苯液相硝化为硝基苯
2. Metal salts with highly electronegative cations as efficient catalysts for the liquid-phase nitration of benzene by NO2 to nitrobenzene [J] . Shenghui Zhou1, Kuiyi You12, Zhengming Yi12, 化学科学与工程前沿：英文版 . 2017,第002期

机译：具有高负电性阳离子的金属盐可作为将NO2苯液相硝化为硝基苯的有效催化剂
3. Vapor phase nitration of benzene over solid acid catalysts IV.Nitration with nitric acid (3); supported sulfuric acid catalyst with co-feeding of a trace amount of sulfuric acid [J] . H. Sato, K. Nagai, H. Yoshioka, Applied Catalysis, A. General: An International Journal Devoted to Catalytic Science and Its Applications . 1999,第1a2期

机译：固体酸催化剂上苯的气相硝化IV。硝酸（3）硝化;负载硫酸催化剂，同时进料微量硫酸
4. Quantum-chemical modeling of benzene with ethylene alkylation reactions using liquid-phase catalyst [C] . Khlebnikova E.S., Ivashkina E.N., Pappel K. International Conferences on Oil and Gas Engineering . 2016

机译：使用液相催化剂用乙烯烷基化反应的量子化学型造型
5. Efficient discovery of chiral catalysts for asymmetric reactions by modular ligand design, solid-phase synthesis, and high-throughput determination of enantiomeric excess. [D] . Sprout, Christopher M. 2006

机译：通过模块化配体设计，固相合成和对映体过量的高通量测定，有效发现了用于不对称反应的手性催化剂。
6. Copper Tridentate Schiff Base Complex Supported on SBA-15 as Efficient Nanocatalyst for Three-Component Reactions under Solventless Conditions [O] . Elham Sadat Diarjani, Fatemeh Rajabi, Asieh Yahyazadeh, 2018

机译：SBA-15负载的三齿Schiff碱铜配合物作为无溶剂条件下三组分反应的高效纳米催化剂
7. In search of efficient catalysts and appropriate reaction conditions for gas phase nitration of benzene [O] . Anton P. Koskin, Ilya V. Mishakov, Aleksey A. Vedyagin 2016

机译：寻找有效的催化剂和适当的反应条件，用于苯的气相硝化
8. Formation of C10H8+ from the Benzene Radical Cation: A Case for the Growth ofPolycyclic Aromatic Hydrocarbon Ions by Ion/Molecule Reactions in the Gas Phase [R] . Bohme, D. K., Wlodek, S., Zimmerman, J. A., 1991

机译：苯自由基阳离子形成C10H8 +：气相中离子/分子反应生长多环芳烃离子的案例

In search of efficient catalysts and appropriate reaction conditions for gas phase nitration of benzene

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