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Synthesis of anisole by vapor phase methylation of phenol with methanol over catalysts supported on activated alumina
Dang, Dan; Wang, Ze; Lin, Weigang; Song, Wenli
2016-05-01
Source PublicationCHINESE JOURNAL OF CATALYSIS
ISSN0253-9837
Volume37Issue:5Pages:720-726
AbstractThe synthesis of anisole by vapor phase methylation of phenol with methanol over activated alumina (AA) supported catalysts was investigated in a fixed bed reactor. KH2PO4/AA gave the best per performance among the eight tested catalysts. The catalyst was prepared by loading KH2PO4 on AA and then calcining at the optimized temperature of 700 degrees C for 8 h. In the vapor phase reaction, the level of anisole yield (LAY) has a maximum at 400-450 degrees C when the temperature varied from 300 to 500 degrees C, which decreased slightly with increasing WHSV and increased distinctly with increasing mole fraction of methanol. On comparing O-methylation and C-methylation of phenol, a low temperature, high WHSV (short residence time), and a low methanol concentration over the KH2PO4/AA catalyst with higher K contents were found to increase anisole selectivity by O-methylation of phenol. The reaction routes to the major products and the catalytic mechanism were suggested, and a 'K-acid' bifunctional process may be a critical factor to the formation of anisole. (C) 2016, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
KeywordPhenol Methanol Catalysis Anisole Methylation
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
DOI10.1016/S1872-2067(15)61074-9
Indexed BySCI
Language英语
WOS KeywordDIMETHYL CARBONATE ; O-ALKYLATION ; SELECTIVE SYNTHESIS ; ZEOLITES ; CRESOL ; HZSM5
WOS Research AreaChemistry ; Engineering
WOS SubjectChemistry, Applied ; Chemistry, Physical ; Engineering, Chemical
Funding OrganizationNational Natural Science Foundation of China(51476180) ; National Basic Research Program of China (973 Program)(2014CB744304)
WOS IDWOS:000376334500008
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/21076
Collection多相复杂系统国家重点实验室
AffiliationChinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Dang, Dan,Wang, Ze,Lin, Weigang,et al. Synthesis of anisole by vapor phase methylation of phenol with methanol over catalysts supported on activated alumina[J]. CHINESE JOURNAL OF CATALYSIS,2016,37(5):720-726.
APA Dang, Dan,Wang, Ze,Lin, Weigang,&Song, Wenli.(2016).Synthesis of anisole by vapor phase methylation of phenol with methanol over catalysts supported on activated alumina.CHINESE JOURNAL OF CATALYSIS,37(5),720-726.
MLA Dang, Dan,et al."Synthesis of anisole by vapor phase methylation of phenol with methanol over catalysts supported on activated alumina".CHINESE JOURNAL OF CATALYSIS 37.5(2016):720-726.
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