中国科学院新疆理化技术研究所机构知识库
Advanced  
XJIPC OpenIR  > 资源化学研究室  > 期刊论文
题名: Catalytic Oxidation of Cyclohexane with Alumina-Supported Schiff Base Manganese Complexes
作者: Yang Danhong; Zhao Wenjun; Gao Lin
关键词: alumina-supported ; Schiff base manganese complex ; cyclohexane ; cyclohexanol ; cyclohexanone ; catalytic oxidation
刊名: Petrochemical Technology
发表日期: 2008
卷: 37, 期:6, 页:554-558
摘要: 以Al2O3为载体制备了Al2O3固载Schiff碱锰配合物,并利用傅里叶变换红外光谱、紫外-可见分光光度计和X射线光电子能谱进行了表征。以该配合物为催化剂,考察了配体结构、催化剂用量、氧气压力和反应温度对环己烷氧化反应的影响。结果表明,Al2O3固载不仅提高了Schiff碱锰配合物催化剂的稳定性且易与产物分离;随配体环内空腔的增大,催化剂的活性降低,其中Al2O3固载的乙二胺-水杨醛Schiff碱锰配合物([Mn(Salen)(1)]-Al2O3)的活性最高。环己烷氧化反应的最佳条件为:[Mn(Salen)(1)]-Al2O3摩尔分数0.30%,氧气压力1.4MPa,反应温度140℃,反应时间4h。在此条件下,环己烷的转化率为10.8%,KA油(环己醇与环己酮的混合物)的选择性为84.2%,催化剂每个活性中心上平均转化环己烷的分子数达到3600。
英文摘要: Alumina-supported Schiff base manganese complexes were synthesized by reaction of Schiff base manganese complexes with alumina, and were characterized by means of IR, UV-Vis and XPS. The supported complexes were used as catalysts in oxidation of cyclohexane. Effects of Schiff base manganese complex structure, catalyst dosage, oxygen pressure and reaction temperature on oxidation of cyclohexane were studied. The supported catalysts are better in stability than the unsupported because they can be easily separated from products and can be reused after purifying and drying. The catalytic activity decreases with the increase of cavity within complex molecules. N, N'-bis (salicylic aldehyde) ethylenediamine Schiff base manganese complexes supported on A12O3 ([Mn(Salen) (1)]-Al2O3) is the best in catalytic activity. Under the optimal conditions for cyclohexane oxidation: [Mn(Salen) (1)]-Al2O3 mole fraction 0.30%, oxygen pressure 1.4 MPa, reaction temperature 140°C and reaction time 4 h, conversion of cyclohexane and selectivity to KA oil (mixture of cyclohexanol and cycohexanone) are 10.8% and 84.2% respectively, and number of average molecules of cyclohexane converted per each active center on catalyst is 3600.
内容类型: 期刊论文
URI标识: http://ir.xjipc.cas.cn/handle/365002/2031
Appears in Collections:资源化学研究室_期刊论文

Files in This Item:
File Name/ File Size Content Type Version Access License
Al_2O_3固载Schiff碱锰配合物催化氧化环己烷反应.pdf(242KB)期刊论文作者接受稿开放获取View 联系获取全文

作者单位: injiang Technical Institute of Physics and Chemistry, Chinese Academy of Science, Urumqi, Xinjiang 830011, China

Recommended Citation:
Yang Danhong,Zhao Wenjun,Gao Lin. Catalytic Oxidation of Cyclohexane with Alumina-Supported Schiff Base Manganese Complexes[J]. Petrochemical Technology,2008,37(6):554-558.
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Yang Danhong]'s Articles
[Zhao Wenjun]'s Articles
[Gao Lin]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Yang Danhong]‘s Articles
[Zhao Wenjun]‘s Articles
[Gao Lin]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
文件名: Al_2O_3固载Schiff碱锰配合物催化氧化环己烷反应.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Powered by CSpace