[1]解文功,吴田甜,闫锋.二元S2O82-/ TiO2-Fe3O4固体超强酸催化剂催化合成乙酸乙酯[J].石化技术与应用,2025,2:105-110.
XIE Wen-gong,WU Tian-tian,YAN Feng.Synthesis of ethyl acetate catalyzed by binary S2O82-/TiO2-Fe3O4 solid superacid catalyst[J].Petrochemical technology & application,2025,2:105-110.
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二元S2O82-/ TiO2-Fe3O4固体超强酸催化剂催化合成乙酸乙酯(PDF)
《石化技术与应用》[ISSN:1009-0046/CN:62-1138/TQ]
- 期数:
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2025年2期
- 页码:
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105-110
- 栏目:
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- 出版日期:
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2025-03-10
文章信息/Info
- Title:
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Synthesis of ethyl acetate catalyzed by binary S2O82-/TiO2-Fe3O4 solid superacid catalyst
- 文章编号:
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1009-0045(2025)02-0105-06
- 作者:
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解文功1; 吴田甜2; 闫锋2
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(1.伊犁新天煤化工有限责任公司,新疆 伊宁 839300;2. 辽宁石油化工大学 石油化工学院,辽宁 抚顺 113001)
- Author(s):
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XIE Wen-gong1; WU Tian-tian2; YAN Feng2
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(1.Yili Xintian Coal Chemical Company Limited, Yining 839300,China; 2.School of Petrochemical Engineering,Liaoning Petrochemical University, Fushun 113001, China)
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- 关键词:
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固体酸催化剂; 超强酸; 二元; 乙酸乙酯; 酯化率
- Keywords:
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solid acid catalyst; superacid; binary; ethyl acetate; esterification rate
- 分类号:
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O 643.36
- DOI:
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DOI:10.19909/j.cnki.ISSN1009-0045.2025.02.0105
- 文献标识码:
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B
- 摘要:
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采用沉淀-浸渍法制备出新型二元S2O82-/ TiO2-Fe3O4固体酸催化剂,对其进行红外光谱、X射线衍射、N2吸附脱附、NH3物理吸附表征,并用于合成乙酸乙酯。结果表明:合成的催化剂为固体超强酸催化剂,晶型完整;在Fe3O4质量分数为0.35%,(NH4)2S2O8浓度为0.75 mol/L,600 ℃焙烧3 h的条件下,制得的催化剂催化效果最佳;在n(乙醇)/n(乙酸)为3∶1,固体超强酸催化剂用量为0.6 g,酯化时间为2.5 h的最佳工艺条件下,该催化剂合成乙酸乙酯的酯化率可达91%。
- Abstract:
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A novel binary S2O82-/TiO2-Fe3O4 solid acid catalyst was prepared by precipitation- impregnation method, characterized by infrared spectroscopy, X-ray diffraction, N2 adsorption and desorption, NH3 physical adsorption and used for the synthesis of ethyl acetate. The results showed that synthesized catalyst was a solid superacid catalyst with complete crystal structure. Under the condition of mass fraction of Fe3O4 in the catalyst was 0.35%, the concentration of (NH4)2S2O8 was 0.75 mol/L, calcined at 600 ℃ for 3 h, the catalytic effect was the best. The optimal process conditions for synthesizing ethyl acetate using this catalyst were: alcohol to acid ratio of 3∶1, solid superacid catalyst dosage of 0.6 g, esterification time of 2.5 h, and esterification rate of 91%.
参考文献/References
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备注/Memo
- 备注/Memo:
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国家科技重大专项课题任务(项目编号:2016 ZX 05010-004-005)
更新日期/Last Update:
2025-03-10