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the aqueous phase
相关语句
  水相
    The necessary input data are known such as uranium, plutonium and the acid original concentration in the aqueous phase as well as in the organic phase, feed flowrate and its stage number for each stage.
    当单位时间内转入有机相的量和转入水相的量相等时,两相中的铀浓度就不再变化,也就是达到了萃取平衡。 如果体系中含有钚,钚在萃取反应中会和铀竞争自由TBP。
短句来源
    When the aqueous phase is continuous phase,the dispersed phase mainly behaves as dispersing and behavess as coalescing when the continuous phase was changed into organic phase.
    有机相连续时柱内液滴以聚集为主 ,水相连续时柱内液滴以分散为主。
短句来源
    Under the same pulsation intensity, the flooding throughout for the organic phase as the continuous phase is more than that for the aqueous phase as the continuous phase.
    在相同的脉冲强度下 ,该体系水相连续时液泛通量较小 ,有机相连续时液泛通量较大。
短句来源
    These experimental evidences have proven that acetohydroxamic acid can readily complex Np(Ⅳ) and strip it from 30%TBP/OK into the aqueous phase by forming hydrophilic complex.
    实验证明 :乙异羟肟酸能很好地络合Np(Ⅳ )并形成亲水性络合物 ,从而能把Np(Ⅳ )从 3 0 %TBP中反萃入水相
短句来源
  “the aqueous phase”译为未确定词的双语例句
    The extraction of U(VI) with HCBMPPT[4-(2chloro)benzoyl-2,4-dihydro-5-methyl- 2-phenyl-3H- pyrazol-3-thione] from nitric acid solution in toluene was studied. The distribution ratio of U(VI) increases with the increasing pH of the aqueous phase.
    研究了4-(邻氯苯甲酰基)-2,4-二氢-5-甲基-2-苯基-3H-吡唑硫酮-3(HCBMPPT)在硝酸介质中对铀(VI)的萃取行为,并对萃取配合物的化学组成及萃取机理进行了分析和讨论。
短句来源
    The results of extraction experiments show that the distribution ratio of Zr(Ⅳ) sharply decreases as the increase with the concentration of AHA in the aqueous phase,while the distribution ratio of Pu(Ⅳ) remains high enough for its recovery.
    萃取实验结果表明:在模拟高放废液中加入AHA可显著降低Zr(Ⅳ)在两相中的分配比,此时,Pu(Ⅳ)的分配比仍足够大,它不影响TBOPDA对Pu(Ⅳ)的回收。
短句来源
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  the aqueous phase
Preparation, characterization and properties studies of quinine-imprinted polymer in the aqueous phase
      
Sorption by cryotextured cornstarches of components of the aqueous phase of a mixture of essential oils was studied by capillary gas chromatography.
      
First there occurs rapid interaction of zinc with the enzyme at a site exposed to the aqueous phase corresponding to the mitochondrial matrix.
      
It is noted that lecithin plays the key role in the transfer of the water and gelatin molecules from the aqueous phase to heptane.
      
The transfer of these components of the aqueous phase through the interface resulted from their inclusion into phospholipid reverse micelles via hydrogen bonding.
      
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The effect of seventeen sieve plates cartridge geometry on pulsed-column flooding capacity has been determined with the organic phase as a continuous phase in the system 30% TBP/OK-HNO_3. In the case of sieve plate wetted by the organic phase pulsed-cohumn flooding capacity increases with plate hole diameter, plate free area, plate spacing and correlates them with experimental formulas. In the case of sieve plate wetted by the aqueous phase the flooding capacity increases with plate hole diameter, plate...

The effect of seventeen sieve plates cartridge geometry on pulsed-column flooding capacity has been determined with the organic phase as a continuous phase in the system 30% TBP/OK-HNO_3. In the case of sieve plate wetted by the organic phase pulsed-cohumn flooding capacity increases with plate hole diameter, plate free area, plate spacing and correlates them with experimental formulas. In the case of sieve plate wetted by the aqueous phase the flooding capacity increases with plate hole diameter, plate free area, plate spacing and reaches a max. value, and the corresponding K value is about 3. The flooding capacity in the later case is larger than one compared with that in the former case. The flooding capacity of both flat sieve plate and nozzle plate with identical wettability is about the same.

在30%TBP/OK-HNO_3体系中,以有机相作连续相,测定了17种板结构对液泛负荷的影响。当采用亲有机相筛板时,液泛负荷随孔径、板间距,自由截面的增加而增大,并对它们进行了数学关联;当采用亲水相筛板时,液泛负荷随孔径、板间距、自由截面的增加有一个极大值,极大值对应的K值在3左右,后者的液泛负荷通常比前者高得多;平板和喷嘴板,只要它们的浸润特性相同,两种筛板的液泛负荷都相差不大。

The main goal of this study is to offer dynamical characteristics for the design of the control system for 1A mixer-settler of Purex process.The dyna- mic theoretical model of the extractor-cascades given in this paper can pre- dict the dynamic response of the components in the two phases.On the basis of this model,and by adding a PRBS disturbing functiom to the input aque- ous and organic flows,dynamic mathematic simulation can be carried out. Provided that the disturbing signal condition is the same,the error...

The main goal of this study is to offer dynamical characteristics for the design of the control system for 1A mixer-settler of Purex process.The dyna- mic theoretical model of the extractor-cascades given in this paper can pre- dict the dynamic response of the components in the two phases.On the basis of this model,and by adding a PRBS disturbing functiom to the input aque- ous and organic flows,dynamic mathematic simulation can be carried out. Provided that the disturbing signal condition is the same,the error margin between experimental and calculating results is smaller in the organic phase than on the aqueous phase,with an average of about 15% for the former and 20% for the later.The dynamic test has also been carried out in a pilot plant air pulse mixer-settler with a system consisting of UO_2(NO_3)_2+HNO_3+H_2O /TBP 30%+OK,and with PRBS signal produced by computer being added to input parameters,and output parameters being measured continuously via on- line instruments.

本文的研究目的是为 Purex 流程1A 萃取槽(混合澄清槽)的控制系统设计提供控制对象的动态特性。文中提出的萃取级联动态机理模型,可以预报各级两相组分的动态响应数据。以此模型为基础,在水相流量和有机相流量的输入参数上加 PRBS 干扰函数,进行动态数学模拟,其结果与相同条件下的中间规模的实测值吻合较好。动态数据测试是在中间规模的空气脉冲式的混合澄清槽上进行的,工艺体系为 UO_2(NO_3)_2+/HNO_3+H_2O/TBP30%+OK。加在输入参数上的 PRBS 信号,由电子计算机的外给定来实现,输出参数由流线仪表连续检测。对测得的大量数据进行了解析,结果令人满意。

This paper presents two-phase isotope chemical exchange systems for isotope seperation of urani- um. The equilibrated phases consisted of an equeous solution of a uranium salt and a 1.2- dichloroethane solution of uranium-crown ether complex. Significant uranium isotope effect can be ob- tained without a valence change of uranium in isotope exchanging between the aquo and crown ether complexes in these systems, and uranium-235 was concentrated in the organic phase in all cases, and the uranium isotope exchange...

This paper presents two-phase isotope chemical exchange systems for isotope seperation of urani- um. The equilibrated phases consisted of an equeous solution of a uranium salt and a 1.2- dichloroethane solution of uranium-crown ether complex. Significant uranium isotope effect can be ob- tained without a valence change of uranium in isotope exchanging between the aquo and crown ether complexes in these systems, and uranium-235 was concentrated in the organic phase in all cases, and the uranium isotope exchange rate with crown ether was rapid. By means of a stepwise enriching and depleting cascade process, the equilibrium single-stage sepa- ration factors α were determined in several liquid-liquid extraction systems, in which uranyl chloride is extracted by DCH18C6 (Dicyclohexyl-18-Crown-6), the values α were found to be 1.0010 ± 0.0002 and 1.0012 ± 0.0004 for initial U (Ⅵ) concentrations of 5 mg u / ml in the aqueous phase, respectively, for an enriching cascade process. The average values of α were found to be 1.0014 ± 0. 0007 for initial U (Ⅵ) concentration of 75 mg u / ml in aqueous phase for a stepwise de- pleting cascade process. The mean single-stage sepeation factors were determined as α= 1.00061± 0.00009 and α=1.00066 ± 0.00019 for four independent cascade processes of the stepwise enriching and stepwise depleting, respectively, for the isotope chemical exchange systems in which uranyl chloride is extracted by DCH24C8 (Dicyclohexy 1-24-Crown-8). The value of seporation factor was found to be α=1. 0007 ± 0.0001 in the isotope chemical exchange system in which UCI_4 is extracted by DCH18C6, for initial 0.1012 mol u / 1 in the aqueous phase. The results of this work are in accord with that Li, Na and Ca isotope chemical exchange with macrocyclic polyether systems yield higher seperation factors α than with other systems, and relatively large isotope effect can be achieved even for isotopes of heavy elements as uranium without a valence change in the isotope exchanging between the two complexed species. It is believed to be a consequence of the unique properties of eomplexation which are associated with the specific charecteristic structure of macrocyclic compounds.

本文研究了二环已基24冠8(DCH24C8)和二环已基18冠6(DCH18C6)的1,2-二氯乙烷溶剂萃取铀(VI)和铀(IV)的同位素效应,通过多级富集和贫化级联测定了铀同位素的平均单级分离因子,证实了在不变价态铀同位素分离体系中,冠醚体系的铀同位素效应显著大于其它体系。

 
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