转化率

The influences of the reaction time,the reaction temperature,the mole ratio of isovaleric acid to isoamyl alcohol,the quantity of solid surperacid catalysts on the conversion rate of iaovaleric acid were studied.

介绍了一种利用超强酸TiO2/SO2－4催化合成异戊酸异戊酯的新工艺，研究了固体超强酸催化剂用量、酸醇摩尔比、反应时间和反应温度对异戊酸转化率的影响。

The ammoxidation of methyl ethyl ketone to methyl ethyl ketoxime over nano-scale TS-1 was studied with a three-neck glass reactor.

在最佳反应条件下，甲乙酮的转化率和甲乙酮肟的选择性可分别达到99.4%和99.8%。

The ammoxidation of methyl ethyl ketone to methyl ethyl ketoxime over nano-scale TS-1 was studied with a three-neck glass reactor.

在最佳反应条件下，甲乙酮的转化率和甲乙酮肟的选择性可分别达到99。

The photopolymerization led to stable latices and they were obtained with neither coagulation during synthesis nor destabilization over time. It was found that the obtained MMA homopolymers exhibited relatively narrow molecular weight distributions(PDI=1.27—1.36), which was characterized by GPC. The plots of number-average molecular weight vs. conversion and ln([M0]/) vs. time were linear respectively, indicating that the reaction was a controlled/living free radical polymerization.

结果表明，该细乳液体系非常稳定，在整个聚合过程中即没有絮凝物产生，也没有沉淀析出，获得了良好的ln([M0]/)与时间、数均分子量与转化率之间的线性动力学关系，并且在整个聚合反应过程中MMA均聚物的分子量分布比较窄，其多分散性指数较低(PDI=1.27~1.36)，具有明显的活性聚合特征。

The results showed that the utilization ratio of polymer reached 100% and the conversion of leucoquinizarin was more than 99% determined by TLC.

合成反应中高分子利用率为100%，通过薄层色谱分析发现1，4—二羟基蒽醌隐色体的转化率基本达到100%。

The results showed that levulinic acid was stable in near-critical water.

实验结果表明：近临界水中乙酰丙酸较稳定，在280℃、反应32h下，乙酰丙酸的转化率仅为7.0％。

The research results indicated that the pretreatment of corn stalk by steam blasting procedure or warm oxygen method could successfully separate lignose and fibre, and enzyme hydrolysis could realize 85 % cellulose conversion rate, then yeast used for fermentation to produce alcohol.

研究结果表明，玉米秸秆先采用蒸汽爆破法或温氧法预处理，使木质素和纤维分离，然后进行酶水解，可使纤维素转化率达85%，再利用酵母发酵生成酒精。

The results showed that the effect of feeding frequency on the growth of Sparus macrocephalus arose from the changes of feed conversion efficiency, while the ingestion rate was not significantly affect by feeding frequency.

结果表明：(1)摄食率不受饲喂频率的显著影响，饲喂频率影响黑鲷的生长是由饲料转化率的改变引起的。

After this process, the polymerization ratio reaches over 40% and the prepared prepolymer is soluble and meltable with the potential of further cross-linking.

反应过后DAP的转化率达到40%以上，聚合物是可溶可熔的预聚体，具备进一步交联固化的潜力。

During preparation, mercapto ethanol isooctanoate, alkyl or ester tin chloride and organic solvent are first heated and refluxed while adding catalyst; organic layer is then obtained through separating liquid and decompression distilled; and through further steps, the compound is obtained. The synthesis process of the present invention is simple, and has conversion rate higher than 95 %, normal pressure and low reaction temperature, low power consumption and less pollution, and the prepared compound has high reaction activity and low toxicity.

制备时，将异辛酸巯基乙醇酯、烷基或酯基氯化锡和有机溶剂加热回流，同时加入催化剂，然后通过分液，保留有机层，再对有机层进行减压蒸等步骤制得所述化合物；本发明合成工艺简单，转化率大于95％，反应在常压条件下，反应温度低，从而降低了能耗，减少了污染，所制备的化合物具有反应活性高和毒性小的特点，使用安全。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！