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- Bronsted acidic ionic liquid Bronsted酸离子液体
- Acidic ionic liquid had high activity and selectivity, and could be reused without decrease in activity. 酸性离子液体具有很高的催化活性和很好的烷基苯选择性,并且可以循环使用,活性基本没有降低。
- The results showed that the activity of ionic liquid correlated strongly with its acidity, and only acidic ionic liquid had alkylation activity. 实验表明,离子液体的催化活性与其酸强度密切相关,只有在酸性条件下,离子液体对烷基化反应才有催化活性。
- In the absence of any organic solvents,the acetalization of aldehydes or ketones with diols was investigated,which catalyzed by task-specific acidic ionic liquid under mild conditions. 研究了以功能化酸性离子液体1-甲基-3-(4-磺酸基)丁基咪唑硫酸氢盐为催化剂,在无任何有机溶剂的条件下醛(酮)与二元醇的缩合反应,同时考察了催化剂用量、反应时间和反应温度等因素对缩醛(酮)收率的影响。
- pyridinium-based BrOnsted acidic functional ionic liquids BrOnsted酸性功能离子液体
- Finally the great potential of industrial application of acidic ionic liquids is discussed. 展望了酸性离子液体巨大的工业应用前景。
- task-specific acidic ionic liquid 功能化酸性离子液体
- Synthesis of glycerol triacetate catalyzed by acidic ionic liquid 酸性离子液体催化合成三醋酸甘油酯
- Synthesis of 1,5-Benzodiazepine Derivatives Catalyzed by Acidic Ionic Liquid 酸性离子液体催化合成1,5-苯并二氮衍生物
- Keywords Acidic Ionic Liquid;Aromatic Aldehydes;1;3-Cyclohexanedione; 酸性离子液体;芳香醛;1;3-环己二酮;
- Meanwhile, silicalite-1 was confirmed to have no Bronsted acidic protons. 同时证实了Silicalite-1中不能形成Bronsted酸中心;
- The order of Bronsted acid strength are FSPrHY>FSY>USPrHY>USY>PrHY>NH_4Y. B 酸强度顺序为:FSPrHY>FSY>USPrHY>USY>PrHY>NH_4Y.
- Keywords acidic ionic liquid;methylene diphenyl dimethylcarbamate;methyl N-phenyl carbamate;formaldehyde;condensation reaction; 酸性离子液体;二苯甲烷二氨基甲酸甲酯;苯氨基甲酸甲酯;甲醛;缩合反应;
- Ionic liquid based technologies and applications. 基于离子液体相关技术与应用。
- The dynamic processes of Bronsted acid sites involved in the formation ofintermediates are observed directly by ]H MAS NMR. 直接观测到了B酸位(活性中心)在反应中的动态变化过程，B酸位参与了中间物种的生成。
- With the dehydration the free volume inside cages bacame larger, and when dehydrated to a certain degree,Bronsted acid, as the ac. 研究表明，随着水的逐步脱除；笼内自由体积逐步增大；当脱水至一定程度后．笼内开始出现活性中心-质子酸。
- Researches in and application of Lewis acid,Bronsted acid,alkali, alkaline earth and molecular sieve catalysts were described in detail. 对采取烷基化法和酰基化法合成2,6-二烷基萘的工艺路线,尤其对所使用催化剂的研究进展进行了评述。
- acidic ionic liquid 酸性离子液体
- Researches in and application of Lewis acid, Bronsted acid, alkali, alkaline earth and molecular sieve catalysts were described in detail. 对采取烷基化法和酰基化法合成2,6-二烷基萘的工艺路线，尤其对所使用催化剂的研究进展进行了评述。
- After being characterized by FTIR and MAT,it was found that with increasing P content,the number of total acid sites and Bronsted acid sites on cat. 在用FTIR技术和MAT试验等催化剂表征手段对其表征之后，发现酸性、酸密度和强度等与催化剂的裂化性能有很大关系；
