氧化膦

Under some conditions, the synergistic extraction behavior with 2-hydroxyl-4-sec-octyl- diphenylamine and trioctylphousphine oxide has also been studied.

研究了2-羟基-4-仲辛基-二苯甲酮肟在氯仿中萃取钯的行为及2-羟基-4-仲辛基-二苯甲酮肟与三辛基氧化膦协同萃取钯的行为。

The behaviors of extracting gold from alkaline cyanide solution with guanidine and phosphoric-oxygenic compound were studied.

研究了胍与磷氧化合物从碱性氰化液中萃取金的性能，考察了胍、磷酸三丁酯和三丁基氧化膦的浓度对金萃取性能的影响。

Trioctyl phosphine oxide was used as the model of TRPO and its γ radiolysis was studied.

为了探讨三烷基氧化膦辐射乳化的原因及解决的办法，以三辛基氧化膦为TRPO的模型，对TOPO的γ辐解进行了研究。

The thesis investigates the radiolytic and photolytic behavior of organic compoundscontaining phosphoryl group and it consists of three parts.

本论文主要研究含磷酰基团的有机化合物：三辛基氧化膦、三丁基氧化膦、磷酸三辛酯、葡萄糖磷酸(G-1-P)的辐射化学和光化学性质，由三部分组成。

The two rate equations fitted the experimental data well,as was confirmed by the reaction of bis(4-carboxyphenyl)phenyl phosphine oxide with ethylene glycol under constant reaction temperatures of 180197℃ and at different ratios of diol to diacid,whose rate constant and activation energy were calculated.

将这两个速率方程应用于双苯基氧化膦与乙二醇的恒温自催化聚酯化反应，计算值与实验数据相一致，并计算得到了该反应的速率常数和活化能。

The effects of the surfactants, trioctyl phosphine oxide, sodium dodecyl sulfonate and hexadecyl trimethyl ammonium bromide, on the extraction rate of Co^2^+ were investigated. The acceleration in the kinetics in contributed to the associated molecule~2 TOPO taking part in the extraction process directly. The decrement effects of SDS or CTMAB on the rate of extraction kinetics of Co^2^+ with HDEHP were also observed, which caused by the adsorption of molecules of SDS or CTMAB on the interface and decreased the interfacial adsorption amount of HDEHP. In addition, the extraction rate was reduced by a bigger margin in HDEHP-SDS system. This can be explained in terms of the formation of an electric field at the interface.

研究体系中加入不同表面活性剂所引起萃取速率的不同改变：三辛基氧化膦因与HDEHP形成可萃取的Co^2^+活性分子缔合物，降低了萃取过程活化能而使反应加速；十二烷基磺酸钠和十六烷基三甲基溴化铵因占据发生萃取反应的界面区，减小了HDEHP与Co^2^+反应的机会而使反应减速； SDS还因其在界面形成较强的负电场，造成Co^2^+的附加势能而使萃取速率有更大幅度的降低。

The phosphine was quickly oxidized by triplet oxygen to phosphineoxide with a free radical chain reaction at relatively low temperature; while at high temperature, the phosphine react with singlet oxygen through a three member ring intermediate to form phosphineoxide and phosphinate as the product.

在相对较低温度时，膦化物与基态氧发生自由基链反应，膦化物很快被氧化为氧化膦；在相对较高的温度，膦化物与激发态氧直接作用，通过三元环状中间体而最终生成氧化膦和次磷酸酯。

It was shown that the purity of the aim product was higher than 99% and its yield was 60%~70%. The intermediate product p-tertbutoxycarbonyloxybenzaldehyde could be synthesized conveniently and quantitatively. The main byproduct was triphenylphosphine oxide.

结果表明，所得目标产物对特丁氧酰氧基苯乙烯纯度达99%以上，产率为60%~70%，中间产物对特丁氧酰氧基苯甲醛可以定量合成，反应的副产物主要是三苯基氧化膦。

The cross-coupling reaction of DOPO with halogenated phenols were achieved for the first time, novel phenolic hydroxyl-containing reactive-type DOPO-based flame retardants used in epoxy resins were synthesized; the cross-coupling reactions of 2\'-hydroxybiphenyl-2-ylphosphinic acid or diphenyl phosphine oxide with halogenated phenols were studied according to the above result, new reactive-type flame retardants used in epoxy resins were synthesized.

采用Pd催化的方法首次实现了DOPO与卤代酚的交叉偶联，合成了新型含酚羟基的反应型DOPO基环氧树脂阻燃剂；在此基础上实现了2-(2-羟基苯基)苯基次磷酸和二苯基氧化膦与卤代酚的偶联，合成了新型反应型有机磷环氧树脂阻燃剂。

The main work of the article was to synthesize a suitable monomer, bis(4-carboxyphenyl)phenyl phosphine oxide, as the retardant for poly fibre. The procedures were divided into three steps: dichloride phenyl phosphine oxide was synthesized and bis(4-methyl phenyl)phosphate oxide was prepared from DCPP by Friedel-Crafts reaction.

双苯基氧化膦是一种适用于PET纤维阻燃改性的新型有机磷阻燃剂，本文主要研究了其合成工艺，整个合成路线分为三步，通过Friedel-Crafts烷基化反应制备了苯基二氯化膦，进而通过Friedel-Crafts酰基化反应合成了双苯基氧化瞵，经氧气、高锰酸钾氧化得到了产品BCPPO。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。