1) reesterification
['ri:estərifi'keiʃən]
再酯化
2) reesterification
['ri:estərifi'keiʃən]
再酯化作用
3) reactivate
[英][ri'æktɪveɪt] [美][rɪ'æktə'vet]
再活化,再生
4) esterification
[英][e,sterifi'keiʃən] [美][ɛ,stɛrəfə'keʃən]
酯化
1.
Kinetics of esterification and transesterification for biodiesel production in two-step process;
酯化-酯交换两步法制备生物柴油的动力学
2.
Progress of catalysts for producing biodiesel by esterification and transesterification reaction;
酯化及转酯化法制备生物柴油过程中催化剂的研究进展
3.
Catalytic performance of phosphotungstic acid immobilized by sol-gel method for esterification of critic acid;
溶胶-凝胶法制备负载磷钨酸催化剂及其对柠檬酸酯化反应的性能
5) esterfication
酯化
1.
Solid superacids SO~2-_4/TiO_2-Al_2O_3 were prepared and used to catalyze the esterfication of iso-octyl alcohol and by-products in oxidization reaction of durene,which were pretreated before esterifying reaction.
考察了催化剂用量、异辛醇与混合酸的质量比、反应时间等因素对酯化反应的影响,确定了较佳的反应工艺条件:m(催化剂)∶m(异辛醇)∶m(混合酸)=0。
2.
The influence factors esterfication reaction, such as catalyst amount, acid alcohol mole ration,reaction time were investigated.
考察了催化剂用量、原料配比、反应时间对酯化反应的影响。
3.
On the basis of analyzing the starch reaction theory of esterfication and acknowledging the existing work that had been done by predecessors, the effects of conditions on the reactions together with the product's properties including clarity, the freeze-thaw stability and the degree of substitute (DS) were systematically studied by means of changing the condition such as the react.
在前人研究工作的基础上 ,通过改变反应温度、pH值、反应时间和醋酸酐用量等条件 ,探讨了这些条件对酯化反应的影响 ,并对产品的糊透明度、取代度、冻融稳定性等进行了系统的研究 ,并用Brabender粘度仪测定了样品的起糊温度、粘度峰值等温度变化过程中样品粘度性质的变
6) esterifying
[英][es'terifai] [美][ɛs'tɛrɪ,faɪ]
酯化
1.
Study on the determination method about the esterifying enzymes from DaQu of Chinese Strong Flavour Liquor Making;
浓香型大曲中酯化酶测定方法的研究
2.
The esterifying effects of monascus,daqu and rhizopus strain on single acid(acetic acid,caproic acid,lactic acid,butyric acid) and mixed acid(acetic acid,caproic acid,lactic acid,and butyric acid mixed together according to the ratio of 1∶1∶1∶1) were studied.
对红曲霉、大曲以及根霉菌对单一酸(乙酸、己酸、乳酸、丁酸)和混合酸(四大酸按11∶1∶1∶混合)的酯化效果进行了研究,结果表明,红曲霉能促进己酸、丁酸及混合酸与乙醇的酯化作用,生成的酯类物质均为己酸乙酯,而且酯化能力极强;大曲能促进己酸、丁酸及混合酸与乙醇的酯化作用,生成的酯类物质均为己酸乙酯,并且能促进乙酸与乙醇的酯化生成乙酸乙酯;根霉能促进己酸和混合酸与乙醇的酯化作用,生成少量的己酸乙酯和乳酸乙酯。
3.
The disodium alkyl polyglycoside sulfosuccinate was synthesized by esterifying and sulfonating reaction of alkyl polyglycoside,succnic acid in the presence of p-toluenesulfonic acid,and influence fac- tors of the synthetic process were also studied.
以烷基多苷、顺丁稀二酸酐为原料,对甲苯磺酸为催化剂,通过酯化、磺化反应合成了阴离子表面活性剂—烷基多苷磺基琥珀酸单酯二钠盐,探讨了各主要影响因素对合成反应过程及结果的影响。
补充资料:内酯化作用
分子式:
CAS号:
性质:羟基酸的羧基和羟基发生分子内的酯化作用生成环状内酯的反应。与一般酯化作用类似,内酯化作用是一个平衡过程。在一般情况下,只有五元环和六元环的内酯较易生成。γ-羟基丁酸和γ-内酯在平衡时为27:73,环上烷基取代基有利于向内酯方向移动。大环内酯的形成需要特殊的反应条件,15-羟基十五碳羧酸在极稀(0.007mol/L)的苯溶液中,在酸催化下,并且在反应过程中移走水,可以得到高产率的相应的十五个碳原子的内酯。
CAS号:
性质:羟基酸的羧基和羟基发生分子内的酯化作用生成环状内酯的反应。与一般酯化作用类似,内酯化作用是一个平衡过程。在一般情况下,只有五元环和六元环的内酯较易生成。γ-羟基丁酸和γ-内酯在平衡时为27:73,环上烷基取代基有利于向内酯方向移动。大环内酯的形成需要特殊的反应条件,15-羟基十五碳羧酸在极稀(0.007mol/L)的苯溶液中,在酸催化下,并且在反应过程中移走水,可以得到高产率的相应的十五个碳原子的内酯。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条