- 期刊
以HZSM-5為觸媒進行酚甲基化反應的研究
Studies on the Methylation Reaction of Phenol Using HZSM-5 as Catalyst
摘要
本文是以HZSM-5，Y型沸石（HY）及絲光沸石（HM）為觸媒進行酚和甲醇生成甲酚的催化反應研究。在634°K反應70分鐘後主要的產物為甲基苯基醚和鄰位及對位甲酚。HZSM-5為觸媒時甲酚的產率隨反應溫度昇高而增加。進料中甲醇與酚的莫耳比由2降至1時甲酚之產率增加。酚的轉化率隨HZSM-5中的矽鋁比增高而降低。HY型沸石的活性高於HZSM-5。絲光沸石的活性最差。未經改良之HZSM-5對於對位甲酚並未有特殊之選擇性。以快速鈉離子交換法改良HZSM-5也未增進對位甲酚的選擇性。
關鍵字
無資料並列摘要
The methylation reaction of phenol with methanol was performed with HZSM-5, Y. type zeolite and mordenite as catalyst. At 634°K the main products of reaction after 70 minutes are anisole, o-cresol and p-cresol. When HZSM-5 was used as catalyst, the yield of cresol increases with temperature and phenol to methanol ratio (0.5 to 1). Phenol conversion decreases with Al to Si ratio in HZSM-5. The trend of activity are: HY＞HZSM-5＞HM. Unmodified HZSM-5 is not especially selective for p-cresol. Exchange HZSM-5 with sodium ion for ten and twenty minutes does not improve the selectivity.
並列關鍵字
無資料延伸閱讀
- 陳志清、劉瓊芳、游佩蓉、蘇咏筌、張瑩璽、萬皓鵬、李宏台（2013）。鐵觸媒氫化鄰甲氧酚之研究－溫度及壓力效應。先進工程學刊，8(1)，9-13。https://www.airitilibrary.com/Article/Detail?DocID=a0000255-201301-201302070004-201302070004-9-13
- 黎家良（2011）。鑭系波洛斯凱特觸媒於甲醇部分氧化之研究〔碩士論文，元智大學〕。華藝線上圖書館。https://www.airitilibrary.com/Article/Detail?DocID=U0009-2801201414591013
- Lin, W. Y., Chen, J. S., & Lin, W. C. (1980). 在環己烷溶劑中2,6二第三丁基一對一甲酚與若干質子接受體間氫鍵聚合之質子磁共振的研究. 中央研究院化學研究所集刊, (27), 51-56. https://doi.org/10.6522/BICAS.1980.27.8
- 趙希鈞（2004）。Studies on Catalytic Wet Oxidation of Phenol in Aqueous Solution〔碩士論文，元智大學〕。華藝線上圖書館。https://www.airitilibrary.com/Article/Detail?DocID=U0009-0112200611335599
- Joseph, A. S. A. (2015). 1,1,1,3,3,3-Hexamethyldisilazane (HMDS) Trimethylsilylation of Alcohols for Concise Carbohydrate Synthesis [doctoral dissertation, National Tsing Hua University]. Airiti Library. https://www.airitilibrary.com/Article/Detail?DocID=U0016-0508201514075549