在钯的催化下,化合物可以在低温和少量溶剂的条件下大量制造,减少了成本和废液。
With the palladium catalyst, the compounds can often be produced at lower temperatures with fewer solvents, reducing cost and waste.
在去年大部分金属的价格攀升后又纷纷下跌的同时,铂金和钯的价格则一直蒸蒸日上。
While last year's rally in metal seems to have petered out, prospects for platinum, along with palladium, remain bright.
作为汽车催化净化器的材料之一,铂金和钯的价格在十二个月里分别上涨了56%和117%(截止11月30日)。
Used mainly in catalytic converters that curb the smog emissions of vehicles, platinum and palladium chalked up price increases of 56% and 117%, respectively, in the 12 months ended Nov. 30.
方法已用于电镀废液中钯的测定,结果较为满意。
The method was applied to determine the palladium in electroplating effluent with satisfactory results.
也考察了氯化铵的氨水溶液反萃取钯的适宜条件。
Suitable conditions of stripping palladium with ammonium chloride-(ammonia) solution are also studied.
阐述了从废TDI氢化触媒中回收贵金属钯的工艺方法。
The paper described the process method of recovering the metal palladium from waste TDI hydrogenation catalyst.
该催化剂的催化加氢活性与零价钯的外层价电子密度有关。
The catalytic activity for hydrogenation was related to outer layer valence electron density of Pd.
报道了三烷基胺(7301)从盐酸体系中萃取钯的机理研究。
The extraction mechanism of palladium from chloride system by trialkylamine (7301) has been studied.
钯的,四价钯的:含有或指明含有钯的化合物的,尤指带有4价的。
Of or designating compounds that contain palladium, especially with valence 4.
基于二苄基硫醚与钯的配合反应,建立了一种高选择性固相萃取吸附钯的方法。
On the basis of the complex reaction of dibenzyl sulfide with palladium, a high selective method of solid phase extraction for the adsorption of palladium was developed.
与氯代烯烃或芳烃相反,氯代膦烯与零价钯的氧化加成反应可以在温和条件下进行。
On the contrary to the vinyl and aryl chlorides, the oxidative addition reaction of zerovalent palladium to chloro-substituted phosphaalkenes proceeded smoothly under mild conditions.
以三异辛胺萃淋树脂为微型柱固定相,采用流动注射在线预浓集与火焰原子吸收法联用技术,对微量钯的测定进行了研究。
A flow injection on line extraction chromatographic separation and preconcentration system is proposed for the determination of trace palladium by flame atomic absorption spectrometry (FAAS).
这是因为钯纳米颗粒在不断地释放捕获的电子。
This is because the palladium nanoparticles continued to release trapped electrons.
钯原子可以轻易地把两种正常情况下不易反应的有机化合物联接起来。
Two organic compounds that ordinarily would not readily react with other easily both bond to an atom of palladium.
采用原子吸收法分析乙醛催化剂溶液中的钯含量,使分析工作者避免接触有毒试剂,改善了工作环境,又缩短了分析时间。
Determination of palladium in acetaldehyde catalyst solution can avoid the use of the toxic reagent, so it can improve working environment, and shorten analysis time.
持续上升的中国需求,带动大宗商品价格节节走高——从棉花到铁矿石,从原油到钯,莫不如此。
Rising Chinese demand has been driving the prices of commodities as diverse as cotton and palladium - and everything in between, from iron ore to crude oil.
南非已经是非洲最大的能源生产国和消费国,也是最大的黄金、铂和钯生产国。
South Africa is already the largest energy producer and consumer on the continent, and a top producer of gold, platinum and palladium.
钯:钯与铂的外观和用途都很相似;它出现在汽车尾气排放设备和电子产品中。
Palladium (Pd): Palladium is similar to platinum in both appearance and in use; it appears in vehicle emissions equipment and electronics.
但这位语速飞快的工业奇才已经翻遍了元素周期表,也找不出一种比钯更安全的替代元素。
And the fast-talking industrialist has exhausted the rest of the periodic table looking for an element that is a safer power source than palladium.
生产降低,意味着对钯和铂的需求将减少,这两种金属主要用于生产汽车的催化转换器。
Lower production also means less demand for palladium and platinum, used in the production of catalytic converters.
银价仍较历史最高纪录低70%,而钯目前价格为每盎司310美元左右,也远远低于其2001年初每盎司1,000美元以上的高点。
'Silver is still 70% below its all-time high, ' while palladium, standing at around $310 an ounce, is also much lower than its high above $1, 000 an ounce hit in early 2001.
三位科学家开发了一个被称为钯催化交叉偶联的过程,一种使碳原子紧密结合在一起的方法,因此,它们就可以为有机分子形成一个稳定的“框架”。
The trio developed a process known as palladium-catalysed cross coupling, a means of knitting carbon atoms together so that they form a stable "skeleton" for organic molecules.
铂和钯主要用于制造轿车和卡车上的污染控制设备。
Platinum and palladium are used mostly to make pollution - control devices for cars and trucks.
可爱的镀钯色手链上装饰着摇摆木马,风筝和飞机,密镶各色水晶和环氧树脂,从粉色,红色到蓝色。
This cute palladium-plated bracelet features a rocking horse, kite and aeroplane in various different crystal and epoxy colours, from pink to red to blue.
作品饰有一枚小巧星星及含蓄细腻的透明密镶水晶,并搭配镀钯色饰链。
Hanging on a palladium-plated chain, it features a delicate star with a subtle touch of clear crystal pavé.
近年来,双齿配体因具有半配位效应而引起广泛关注并在钯催化的多种反应中得到应用。
Bidentate ligands with the property of hemilability have attracted chemists' research interests and have been widely applied in many palladium-catalyzed transformations.
近年来,双齿配体因具有半配位效应而引起广泛关注并在钯催化的多种反应中得到应用。
Bidentate ligands with the property of hemilability have attracted chemists' research interests and have been widely applied in many palladium-catalyzed transformations.
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