Co/Mn/Br催化椰壳多孔碳氧化NMST制NMSBA，乙酸为活化剂

IF 1.6 4区工程技术 Q3 Chemical Engineering

International Journal of Chemical Reactor Engineering Pub Date : 2022-10-28 DOI:10.1515/ijcre-2022-0014

F. Guo, Hua-jie Liu, Xin‐zhi Zhou, Xiang‐li Long

{"title":"Co/Mn/Br催化椰壳多孔碳氧化NMST制NMSBA，乙酸为活化剂","authors":"F. Guo, Hua-jie Liu, Xin‐zhi Zhou, Xiang‐li Long","doi":"10.1515/ijcre-2022-0014","DOIUrl":null,"url":null,"abstract":"Abstract In this paper, a heterogeneous catalytic system consisting of Co/Mn/Br/activated carbon is used to catalyze 2-nitro-4-methylsulfonyl benzoic acid (NMSBA) production from the oxidation of 2-nitro-4-methylsulfonyltoluene (NMST) by oxygen. The activated carbon (AC) is made from coconut shell with acetic acid as an activator. The experiments indicate that the best AC is made by immersing coconut shell in 12 mol L−1 HAc solution at 50 °C for 32 h with a liquid/solid ratio (mL/g) of 5:1 and then being heated in nitrogen at 800 °C for 6 h. Compared with the Co/Mn/Br/H3PMo12O40@CAC (CAC, commercial activated carbon originated from coconut shell) catalytic system, the Co/Mn/Br/AC catalytic system is able to gain much higher NMSBA selectivity. In spite of holding smaller surface and less acidic groups, the AC owns much more carboxyl than CAC, which is the main reason for its better performance in the preparation of NMSBA.","PeriodicalId":51069,"journal":{"name":"International Journal of Chemical Reactor Engineering","volume":"21 1","pages":"663 - 678"},"PeriodicalIF":1.6000,"publicationDate":"2022-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Oxidation of NMST to NMSBA catalyzed by Co/Mn/Br together with porous carbon made from coconut shell with acetic acid as an activator\",\"authors\":\"F. Guo, Hua-jie Liu, Xin‐zhi Zhou, Xiang‐li Long\",\"doi\":\"10.1515/ijcre-2022-0014\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Abstract In this paper, a heterogeneous catalytic system consisting of Co/Mn/Br/activated carbon is used to catalyze 2-nitro-4-methylsulfonyl benzoic acid (NMSBA) production from the oxidation of 2-nitro-4-methylsulfonyltoluene (NMST) by oxygen. The activated carbon (AC) is made from coconut shell with acetic acid as an activator. The experiments indicate that the best AC is made by immersing coconut shell in 12 mol L−1 HAc solution at 50 °C for 32 h with a liquid/solid ratio (mL/g) of 5:1 and then being heated in nitrogen at 800 °C for 6 h. Compared with the Co/Mn/Br/H3PMo12O40@CAC (CAC, commercial activated carbon originated from coconut shell) catalytic system, the Co/Mn/Br/AC catalytic system is able to gain much higher NMSBA selectivity. In spite of holding smaller surface and less acidic groups, the AC owns much more carboxyl than CAC, which is the main reason for its better performance in the preparation of NMSBA.\",\"PeriodicalId\":51069,\"journal\":{\"name\":\"International Journal of Chemical Reactor Engineering\",\"volume\":\"21 1\",\"pages\":\"663 - 678\"},\"PeriodicalIF\":1.6000,\"publicationDate\":\"2022-10-28\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"International Journal of Chemical Reactor Engineering\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://doi.org/10.1515/ijcre-2022-0014\",\"RegionNum\":4,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"Chemical Engineering\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Chemical Reactor Engineering","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1515/ijcre-2022-0014","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"Chemical Engineering","Score":null,"Total":0}

引用次数: 0

摘要

摘要采用Co/Mn/Br/活性炭组成的非均相催化体系，对氧氧化2-硝基-4-甲基磺酰基甲苯(NMST)生成2-硝基-4-甲基磺酰基苯甲酸(NMSBA)进行了催化研究。以椰壳为原料，乙酸为活化剂制备活性炭。实验结果表明，椰壳在12 mol L−1的HAc溶液中，液固比(mL/g)为5:1,50℃浸泡32 h, 800℃氮气加热6 h，可获得最佳的催化性能。与Co/Mn/Br/H3PMo12O40@CAC(椰壳活性炭)催化体系相比，Co/Mn/Br/AC催化体系具有更高的NMSBA选择性。尽管AC的表面面积更小，酸性基团更少，但其羧基含量却远高于CAC，这是其在制备NMSBA时性能更好的主要原因。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

Oxidation of NMST to NMSBA catalyzed by Co/Mn/Br together with porous carbon made from coconut shell with acetic acid as an activator

Abstract In this paper, a heterogeneous catalytic system consisting of Co/Mn/Br/activated carbon is used to catalyze 2-nitro-4-methylsulfonyl benzoic acid (NMSBA) production from the oxidation of 2-nitro-4-methylsulfonyltoluene (NMST) by oxygen. The activated carbon (AC) is made from coconut shell with acetic acid as an activator. The experiments indicate that the best AC is made by immersing coconut shell in 12 mol L−1 HAc solution at 50 °C for 32 h with a liquid/solid ratio (mL/g) of 5:1 and then being heated in nitrogen at 800 °C for 6 h. Compared with the Co/Mn/Br/H3PMo12O40@CAC (CAC, commercial activated carbon originated from coconut shell) catalytic system, the Co/Mn/Br/AC catalytic system is able to gain much higher NMSBA selectivity. In spite of holding smaller surface and less acidic groups, the AC owns much more carboxyl than CAC, which is the main reason for its better performance in the preparation of NMSBA.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

International Journal of Chemical Reactor Engineering 工程技术-工程：化工

CiteScore

2.80

自引率

12.50%

发文量

107

审稿时长

3 months

期刊介绍： The International Journal of Chemical Reactor Engineering covers the broad fields of theoretical and applied reactor engineering. The IJCRE covers topics drawn from the substantial areas of overlap between catalysis, reaction and reactor engineering. The journal is presently edited by Hugo de Lasa and Charles Xu, counting with an impressive list of Editorial Board leading specialists in chemical reactor engineering. Authors include notable international professors and R&D industry leaders.