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生物质化学工程 ›› 2014, Vol. 48 ›› Issue (4): 7-12.doi: 10.3969/j.issn.1673-5854.2014.04.002

• 研究报告 • 上一篇    下一篇

Hβ分子筛催化合成环己酮甘油缩酮及工艺优化

陆禹吉1,2, 王成章2, 高勤卫1, 叶建中2, 陶冉2   

  1. 1. 南京林业大学 化学工程学院, 江苏 南京 210037;
    2. 中国林业科学研究院 林产化学工业研究所, 国家林业局 林产化学工程重点开放性实验室; 江苏省生物质能源与材料重点实验室, 江苏 南京 210042
  • 收稿日期:2014-04-25 出版日期:2014-07-30 发布日期:2014-07-29
  • 通讯作者: 王成章(1966-),男,研究员,博士生导师,从事天然产物研究与开发;E-mail:wangczlhs@sina.com;高勤卫(1968-),男,教授,博士生导师,从事生物高分子材料的研究;E-mail:gqw@njfu.com.cn。 E-mail:wangczlhs@sina.com;gqw@njfu.com.cn
  • 作者简介:陆禹吉(1990-),男,江苏大丰人,硕士生,从事生物高分子材料研究;E-mail:luyuji35@163.com
  • 基金资助:
    国际合作与交流项目(S2012GR0138)

Synthesis and Process Optimization of Ketalization of Glycerol to Cyclohexanone Using Molecular Sieve Hβ as Catalysts

LU Yu-ji1,2, WANG Cheng-zhang2, GAO Qin-wei1, YE Jian-zhong2, TAO Ran2   

  1. 1. College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China;
    2. Institute of Chemical Industry of Forest Products;Key and Open Lab. of Forest Chemical Engineering; Key Lab. of Biomass Energy and Material, Nanjing 210042, China
  • Received:2014-04-25 Online:2014-07-30 Published:2014-07-29

摘要: 以甘油和环己酮为原料,Hβ分子筛为催化剂,研究了环己酮甘油缩酮的合成工艺。采用IR、 GC-MS等分析技术对合成所得产物的结构进行了分析测定。探讨了反应条件对产物收率的影响,采用正交试验方法确定了缩酮反应的最适工艺条件:0.1 mol环己酮, 0.15 mol甘油,反应时间90 min,反应温度90℃,催化剂用量为0.2 g。在此条件下进行了3次稳定性实验,实验表明,反应稳定性较好,并且产物2-羟甲基-l,4-二氧杂螺环癸烷的收率达95%以上。讨论了反应机理和产物的选择性。

关键词: 环己酮, 甘油, H&beta, 分子筛, 缩酮反应, 正交试验, 机理

Abstract: Synthesis and process optimization of the ketalization of glycerol to cyclohexanone was investigated by using molecular sieve Hβ as catalysts. The structure of the product was identified by IR and GC-MS spectrum. Influence of reaction condition on the yield of the product was examined.The optimum synthesis conditions were determined based on the orthogonal test results as follows: amount of cyclohexanone was 0.1 mol, amount of glycerol was 0.15 mol, reaction time was 90 min, reaction temperature was 90℃, and amount of catalysts was 0.2 g. Three experiments were carried out under these conditions. A good stability was obtained. The yield of the product 2-methylol-1,4-dioxaspirodecane could reach more than 95%. Reaction mechanism and selective of product were discussed.

Key words: cyclohexanone, glycerol, molecular sieve Hβ, ketalization, orthogonal test, mechanism

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