查询词典 phosphinic

The characteristics of five different phosphinic impregnated resins adsorbing heavy rare earth elements in hydrochloric acid are studied by static method.

利用静态法研究了5种不同膦类萃取剂的浸渍树脂在盐酸介质中对重稀土的吸附行为。

When the resulting nitro compounds was reduced over 5% Pd/C catalyst, the nitro phosphinic acids required more catalyst that the esters nitro phosphinic acid, and dinitro compounds required more catalyst than mono-nitro compounds in the case of all nitro groups completely changed into amino groups.

用5％Pd/C作催化剂，将上述硝基物还原时发现，次膦酸形成的硝基物比次膦酸酯形成的硝基物需要更多催化剂才能使硝基全部还原成氨基；二硝基化合物比单硝基化合物需要更多的催化剂。

Included here are organic phosphinic, phosphonic and phosphoric acid derivatives and their thiophosphorus counterparts.

以磷作为主要成分的化合物，包括有机膦，磷酸及磷酸衍生物及其硫代磷酸相似物。

The extraction of Pr3+was studied by using heptane containing bis(2-ethylhexyl)phosphinic acid in sodium perchlorate,chloroacetic acid and citric acid medium ,respectively.

研究了二(2-乙基己基)膦酸(PIA-8)的庚烷溶液分别在高氯酸钠、氯乙酸、柠檬酸介质中对Pr3+的萃取。

When substituting MeOH for MeONa on above technology, however, the methyl ester phosphinic acid with double melting points was also obtained, and its crystal phase was clearly different from its counterpart with single melting point.

若将10-羟基-5，10-二氢磷杂吖嗪-10-氧化物和氯化亚砜的作用产物直接在甲醇溶液中回流，也得到双熔点甲酯，它与单熔点次膦酸甲酯具有不同的晶相结构。

In the second part of this work, a computor program is developed to calcalate〓L〓energy levels, reduced matrix elements, crystal field energy levels, oscillator strengths of f-f transition and theoretical f-f absorption spectra of f-ions. The calculation results of the f-f absorption spectra of Nd in water coordination sphere and H di (2-ethylhexyl phosphinic acid coordination sphere with different symmetric structure are shown and compared with observed spectra.

在第二部分中，编制了计算f离子的〓L，能级、约化矩阵元、晶体场中Stark能级分裂、f-f跃迁振子强度及f-f理论吸收光谱的计算机程序，以此程序分别计算了Nd在不同结构对称的水配位层及烷基磷酸配位层中的f-f吸收光谱，通过与实验谱比较，识别了可能的配位层结构，并讨论了f-f跃迁的强度机理。

Under the same experimental conditions, the saturated adsorptive capabilities of five different phosphinic impregnated resins (Cyanex272, Cyanex272-P507, Cyanex272-Cyanex302, Cyanex272-Cyanex923, Cyanex272-TBP) in heavy rare earth are 20.04, 25.37, 21.87, 22.16, 38.48m/g, respectively.

在相同实验条件下，5种浸渍干树脂Cyanex272，Cyanex272-P507，Cyanex272-Cyanex302，Cyanex272-Cyanex923，Cyanex272-TBP对重稀土的饱和吸附容量分别为20.04，25.37，21.87，22.16，38.48mg/g。

The dark green bis-anion obtained from treatment of 10-hydroxy-5, 10-dihydrophenophosphazine 10-oxide with NaH reacted with MeI at about 120℃ in anhydrous DMF to give N-methyl phosphinic acid.

在无水DMF中，用NaH处理5，10-二氢磷杂吖嗪环系次膦酸，得到黯绿色双负离子钠盐，该钠盐与MeI在约120℃下反应，得到N-甲基-5，10-二氢磷杂吖嗪环系次膦酸。

Subsequent ACE inhibitors were designed with a carboxyl zinc ligand (enalapril, lisinopril, quinapril, ramipril, cilazapril, perindopril) or a phosphinic acid zinc ligand.

后来的ACE抑制剂都设计了一个羧基锌配体（依那普利，赖诺普利，喹那普利，雷米普利，西拉普利，培哚普利）或是一个磷酸锌配体。

Poly/montmorillonite/2-Carboxyethyl phosphinic acid (PET/MMT/CEPP) nanocomposites were prepared through direct-esterification process by adding reactive flame retardant before esterification, and organic MMT was added before polycondensation.

采用直接酯化法，将共聚型阻燃剂羧乙基苯基次磷酸和对苯二甲酸以及乙二醇混合后酯化，在酯化产物中加入经过有机改性的蒙脱土，缩聚制备了阻燃聚酯／蒙脱土纳米复合材料(PET/MMT/CEPP)。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。