solvent-oil ratio

The results showed that the relative volatility of ethanol-water azeotropic mixture increased obviously as solvent ratio increased and the slop cut of water-glycol lasted a very short time during which the temperature at the top of the column rose sharply.

实验得出，乙醇水体系的相对挥发度随溶剂比的增加而显著增大，水乙二醇过渡馏分段持续时间很短，在该段时间会出现塔顶温度急剧跃升的现象；

In order to lower the operating expenses and increase the enrichment ratio of Sc, the existing technique of extracting Sc from titania waste acid by a mixed solvent system consisting of di-2-ethylhexyl phosphoric acid ( P204), tri-butyl phosphorate ( TBP) and kerosene was modified.

研究旨在改进现有二（2-乙基己基）磷酸（P204）-磷酸三丁酯（TBP）煤油体系提取钛白废酸中钪的工艺流程，降低洗涤操作费用，提高钪的富集比。

The latter is characterized by a dimensionless parameter, the approaching ratio, which describes the thermodynamic state of the membrane-forming system and the quality of the solvent mixture.

邻近比可以表征铸膜液的热力学状态和混合溶剂的质量。

Orthogonal experiment design was used to optimize experimental factors: solvent amount, raw material ratio, temperature and reaction time.

利用正交实验设计确定了加成缩合反应实施的最佳实验条件，优化了合成反应的溶剂用量、原料配比、反应温度及反应时间参数。

To optimize the reaction conditions, temperature, ratio of raw materials, reaction solvent, catalyst and other factors were investigated.

并对合成路线中刘卡特反应的反应温度、物料配比、反应溶剂、反应催化剂等因素进行了考察，优化了反应条件。