酯交换反应
- 名Transesterification;ester exchange;interesterification
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以蔗糖和猪油为原料,以N,N&二甲基甲酰胺为溶剂,在碱催化剂作用下,直接进行酯交换反应合成了蔗糖酯。
This process relates to a sucrose esters prepared by the direct ester exchange reaction of sucrose with fat oil as a raw material and at present of solvent N , Ndimethylformamide and base catalyst .
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将其应用于酯交换反应。
Catalyst was applied to ester exchange reaction .
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固体碱催化剂(K2O/C)的制备及其催化酯交换反应
Preparation of solid base of K_2O / C and transesterification catalyzed by the catalyst
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超临界CO2中脂肪酶催化酯交换反应
Lipase catalyzed transesterification in supercritical CO 2
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PbO-Yb2O3催化苯酚与碳酸二甲酯的酯交换反应
Transesterification of Dimethyl Carbonate and Phenol over PbO-Yb_2O_3 Catalyst
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DSC在研究聚合物共混体系酯交换反应中的应用
Application of DSC in the Studies of Transesterification Reaction in Polymer Blends
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负载型Cs2O固体碱催化剂的制备及催化酯交换反应性能
Preparation of supported Cs_2O solid base catalysts and performance of catalyzing transesterification reaction
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MS和XPS结果证实I在酯交换反应条件下能稳定存在。
The MS and XPS results demonstrate that I exists steadily in the reaction condition .
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Lewis酸、碱催化碳酸二甲酯与苯酚酯交换反应
Transesterification of Dimethyl Carbonate and Phenol with Lewis Acid and Base Catalysts
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以K2O/-γAl2O3和Cs2O/-γAl2O3固体碱为催化剂进行了植物油酯交换反应研究。
Vegetable oil ester-exchange reactions catalyzed by solid base catalyst were studied .
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研究表明:PEN与PET的酯交换反应主要由反应时间和温度决定。
It was found out the transesterification reaction of PEN and PET was significantly affected by the reaction time and temperature .
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对苯二甲酸二甲酯(DMT)与乙二醇(EG)的酯交换反应模拟动力学
Simulation kinetics on ester interchange reaction of dimethyl terephthalate with ethylene glycol
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CandidaRugosa脂肪酶催化(R,S)-2-辛醇酯交换反应的对映选择性
Enantioselectivity of Candida rugosa Lipase - Catalyzed Interesterification of ( R , S ) - 2 - Octanol
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Mo负载量对DMO和苯酚酯交换反应的性能有明显影响。
The Mo loading had an obvious effect on the catalytic performance of ester exchange reaction .
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通过催化大豆油与甲醇进行酯交换反应合成脂肪酸甲酯(FAME),研究了相转移催化剂对油脂醇解的催化性能。
Fatty acid methyl ester was prepared by interesterification of soybean oil and methanol with a phase transfer ( catalyst ) .
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首次对1HNMR测定的酯交换反应数据以三种动力学处理方法作了比较。
Three kinetic approaches were compared to deal with the data of transesterification measured by 1H NMR for the first time .
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Zn-Al水滑石催化碳酸二甲酯与苯酚酯交换反应的研究
Transesterification of Dimethyl Carbonate and Phenol Catalyzed by Zn-Al Hydrotalcite
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并分别优化了NaOH催化、KNO3/Al2O3固体碱催化剂催化,微波加热条件下的酯交换反应。
The transesterification using NaOH and KNO3 / Al2O3 solid base catalyst in the presence of microwave were also optimized respectively .
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研究结果表明,这一催化剂对合成DPC的酯交换反应具有高的催化活性。
The results indicated that the catalyst for the synthesis of DPC has high activity and stability .
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该文以牛油为原料,在KOH的催化作用下与甲醇酯交换反应制备生物柴油。
The biodiesel production through transesterification reaction from tallow with methanol was studied , and KOH was used as catalyst .
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以蔗糖、植物油为原料,乙醇钠为催化剂,脂肪酸皂及SE为促进剂,在均相熔融状态下进行酯交换反应合成蔗糖酯。
In this experiment , We use sucrose and vegetable oil as reactant , caustic alcohol as catalyst , and fatty acid soap and SE as accelerating agent .
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利用转矩流变仪、DSC、SEM及WAXD等表征手段研究了PET/PC共混体系的酯交换反应对其高压结晶行为的影响。
Effect of transesterification on high-pressure crystallization behaviour of PET / PC blend system was investigated by torque rheometer , DSC , SEM and WAXD measurements .
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以Ca(Ac)2溶液浸渍MgO载体制得负载型钙镁固体碱催化剂,可以用于菜籽油酯交换反应生产生物柴油。
Supported CaO / MgO solid base catalysts , used in the transesterification of rapeseed oil to produce biodiesel were prepared by impregnating MgO carrier with Ca ( Ac ) _2 solution .
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研究了KNO3/Al2O3固体碱催化剂的焙烧温度和KNO3负载量对酯交换反应的影响。
The influence of calcination temperature and loading amount of KNO3 on transesterification were researched .
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负载型MoO3催化草酸二甲酯和苯酚酯交换反应合成草酸二苯酯的研究
Study on the Supported MoO_3 Catalysts for the Synthesis of Diphenyl Oxalate from Transesterification of Dimethyl Oxalate with Phenol
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采用熔融酯交换反应将液晶单体和1,4&丁二醇(BDO)和丁二酸二甲酯(BDS)进行共聚。
Melted state transesterification is adopted by mesogenic monomer , 1 , 4-BDO and BDS .
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研究了不同n(Zn)/n(Al)比的水滑石及其焙烧产物等对酯交换反应的催化活性。
The catalytic activity of Zn-Al hydrotalcite with different molar ratios of Zn to Al and their calcined products were tested . It is found that Zn-Al hydrotalcite has a high catalytic activity and selectivity in the reaction .
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对以植物油脂和甲醇等为原料进行酯交换反应制备生物柴油进行了初步研究,并研究了副产物甘油的纯化和维生素E类化合物的分析。
The preparation of biodiesel from vegetable oil by transesterification with methanol , the purification of the glycerin and the identification of vitamin E homologues were studied . Transesterification were carried out by the acid catalysis and alkali catalysis .
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通过~1HNMR、WAXS、DSC、DMTA以及静态力学性能测试,对PET/PEN共混物的酯交换反应、共混物的结构和性能进行了研究。
Transesterification reaction , structure and properties of PET / PEN melt blended samples were studied by 1H NMR , WAXS , DSC , DMTA and mechanical tests .
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Sn元素与Mo-O-Si的协同作用与Lewis酸性中心共同作用于DMO和苯酚的酯交换反应。
The integrated effect of the synergy of Sn with Mo-O-Si and weak Lewis acid sites catalyzed transesterification of DMO with phenol .