萃取的

He extraction equilibrium is an exothermic reaction and the extraction enthapy of americium is -80.54、-81.99 and-75.88 kJ/mol for TBOPDA,T i BOPDA and TBDOODA,respectively.

BOPDA、TiBOPDA和TBDOODA萃取镅的反应焓变分别为：- 80 5 4、- 81 99和- 75 88kJ/mol；求出了萃取反应自由能和熵值的变化；观测了不同平衡酸度下萃入有机相中金属离子的可见吸收光谱。

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 experimental results show that, adding entrainer to raw material in static mode combined with adding a suitable concentration of entrainer to SC-CO〓 in flowing mode may be the best way among the three kinds of methods for adding entrainers.

首先研究葡萄籽油的提取工艺，重点考察了萃取温度和萃取压力对葡萄籽油产率的影响，确定了适宜工艺条件并比较了三种不同来源葡萄籽的萃油效果。

By comparison recoveries of several sequential extraction procedures and selectivity of extractants for thorium in soil and scoria, Martínez-Aguirre's sequential extraction method was adopted for quantitative analysis of thorium fractions, then the optimization and evaluation of the sequential extraction method were performed.

分别采用Tessier、BCR和Martínez-Aguirre形态萃取方法对土壤和样品中钍的形态进行分析，通过对总量的回收率和萃取剂选择性比较，选择了Martínez-Aguirre连续萃取法定量样品中钍的形态，并对其进行了优化和评价。

The relationship between apparent equilibrium constants Kex, and the physical parameters of solvents can be derived.

考察了在不同溶剂中HDEHP对镨、钕、钐、镝、钬、镱等的萃取，计算得到萃取表观平衡常数Kex、热力学平衡常数KΘex和萃合物的溶解度参数δc，建立了lgKex与溶剂极性参数ET (30)、α间的经验方程。

Results show the optimal conditions for the moringa seed oil extraction are as follows: using petroleum ether as solvent,the ratio of solvent to moringa seeds is 8∶1,extraction time 40 min and extracting twice with the aid of 28 kHz ultrasonic.At the conditions,the ...

结果显示，超声波辅助溶剂萃取辣木籽油的最佳条件为：溶剂石油醚，提取次数2次，提取时间40 min，超声波频率28 kHz，液料比8∶1，在此条件下，辣木籽的平均出油率为35.85%，提取率96%，表明超声波辅助溶剂萃取法是一种可用于萃取辣木籽油的适宜方法。

Steam distillation and supercritical CO2 fluid extraction were used to extract cinnamon oil to establish the optimal technica1 condition for the extraction of cinnamon oil.

优选萃取肉桂油的工艺条件，分别采用水蒸汽蒸馏法和SFE-CO2提取肉桂油，进行SFE-CO2萃取肉桂油的正交试验，优选最佳萃取条件。

The results from analysis of conjugated dienes and thiobarbituric acid-reactive substance formation showed that aqueous extracts of black rice and black sesamin and ethanol extracts of black Jew's ear inhibited the oxidation of LDL.

我们发现，黑糯米和黑芝麻水萃取物及黑木耳的酒精萃取物会延迟脂质氧化过程的中间产物 conjugated dienes 的出现，且会抑制终产物 thiobarbituric acid-reactive substance 的产生，反映出黑糯米和黑芝麻水萃取物及黑木耳的酒精萃取物具有抗低密度脂蛋白氧化的能力。

The results show that BODMAC has good ability to extract gold from chloride, the composition of extraction species is BODMA·AuCl〓 The influence of NaCl concentration on distribution coefficient of gold is different from that of uranium .

结果发现，BODMAC从氯化物中萃取金的能力很强，通过紫外光谱和红外光谱确定了其萃合物的组成为BODMA·AuCl〓的离子缔合物，计算了其萃取反应的平衡常数为10〓。

Supercritical fluid extraction technology different from the traditional steam distillation and organic solvent extraction method is a new, highly efficient, energy-efficient, and clean the oil extraction technology.

超临界流体萃取技术有别于传统的水蒸气蒸馏法和有机溶剂萃取法，是新兴的、高效的、节能的和洁净的精油萃取技术。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。