萃取剂

Effect of acidity of aqueous phase and different ammoniation rates of extractant on the total mass transfer coefficients based on the water phase have been investigated The results showed that the mass transfer coefficients of Zn and Cd decreased but that of rare earth increased with the increasing of the ammoniated rate of extractant.

考察了料液酸度、萃取剂浓度以及萃取剂不同氨化度对锌、镉传质系数的影响。

Based on analyzing the generation mechanism and quality characteristics of reclaimed acid from benzol refining and comparing varies kinds of purification methods, the operation easily, the technical process simple extraction method is used to purify the reclaimed acid and the dosage of the extraction agent and extraction power are studied in detail.

对精苯再生酸的生成机理、质量特性进行了分析，通过比较各种再生酸净化方法的优缺点，选用操作简便、工艺简单的再生酸净化方法——萃取法对再生酸进行处理试验，并对萃取剂的用量、萃取能力等进行了详细的研究。

The composite extractant used has strong dissolving detachability on oxidation products of the organic sulfur and can remove composite extractant left in fat phases so as to improve the yield of the diesel fuel.

所用的复合萃取剂对有机硫化物的氧化产物有很强的溶解脱除性，可以除去遗留在油相中的复合萃取剂，提高柴油收率。

This paper reported the thermodynamics of extracting Re with the extractant of N235 in the HCl system.

以N235为萃取剂，正庚烷为稀释剂，在盐酸体系中研究萃取铼的热力学。

The results showed that the influence of the diluents on extraction depended on the concentration of maleic acid.

结果表明，稀释剂对萃取的影响与马来酸和萃取剂的浓度有关。

The influences of solvent to oil ra-tio, temperature and the composition of the sulfur compounds on the desulfurization of a simulated FCC naphtha con-sisting of n-octane, thiophene and benzothiophene by single-stage solvent extraction were studied first.

以PEG-400为萃取剂，研究了由正辛烷、噻吩、苯并噻吩构成的汽油模拟体系，考察了单级萃取中溶剂比、温度和硫化物组成对分配系数和脱硫率的影响，在剂油比为1时，对模拟体系的脱硫率可以达到64.2％。

The influence of solvent/oil ratio, thinner content and temperature on desulfurization and the distribution coefficient by extraction of a model system for diesel oil with special attention to the solvent furfuryl alcohol was investigated.

以康醇为萃取剂，在正十六烷中加入少量二苯并噻吩构成柴油模拟体系，考察了单级萃取中稀释荆含量、剂油比、温度对脱硫率和分配系数的影响。

Difficulties existing in testing of nine carcinogenic dyes tuffs are analyzed,an innovative testing method is put forward as follows:using methol to extract the 9 dyes under the conditions of ultrasonic wave oscillation at 70 ℃,the extraction is separated by HPLC/DAD method.

分析了已知9种致癌染料检测中存在的困难，选择用甲醇作为萃取剂对这9种致癌染料在70℃、超声波振荡的条件下进行萃取，采用HPLC/DAD法对萃取液进行分离分析，讨论了试验中应注意的事项，如试剂、标准溶液的确定、仪器的选用、测试步骤的优化等。

Compared with the National Standard Method of People's Republic of China, the subcritical water extraction method need less reagents and achieves higher extraction efficiency.

研究了肉制品中亚硝酸盐的亚临界水萃取预处理技术，分别考察了温度、时间、萃取剂组成对萃取效率的影响。

This study describes the extraction of nitrite from meat by subcritical water.

研究了肉制品中亚硝酸盐的亚临界水萃取预处理技术，分别考察了温度、时间、萃取剂组成对萃取效率的影响。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失