用离子交换方法制备了铜交换的分子筛，研究了将二价铜还原为一价铜的方法。
Cupric ion exchanged NaY zeolite was prepared. The method to reduce cupric into cuprous exchanged zeolite was studied.
举例来说，过去两个月铜价已经下跌了23%，这一定程度上是因为人们担心中国对该种金属的消费——今年中国的铜消费已下降逾一半。
Copper prices, for example, have fallen 23 per cent in the past two months, partly on fears over Chinese consumption of the metal, which has fallen by more than half this year.
但从根本上讲，一些人相信，过去几个月空前高涨的铜价可能已经起到了效果：降低了需求，刺激了废铜供应的增加。
Fundamentally, however, some believe that the unprecedented prices over the past few months may already have done their job, trimming demand and stimulating higher scrap supplies.
据RBS表示，如果管理者可以被说服先将自己的反对放在一边，放手这些ETF交易，那么铜价（如今为8750美元/吨）可能会超过1万美元。
If regulators can be persuaded to set aside their objections and allow these ETFs to trade, copper, currently trading at over $8,750 a tonne could be pushed up beyond $10,000 according to RBS, a bank.
75美元一磅的铜价在财务报表上反映为Freeport每股十元的自由现金流。
On $3.75 a pound copper my worksheets show Freeport's free cash flow running at $10 a share.
造成铜价上涨的另一个原因是智利8月份发生的一起铜金矿塌陷事故，地点位于科皮亚波附近的阿塔卡马沙漠。
This growth also comes after the country braved the collapse of a copper-gold mine in the Atacama Desert near Copiapó in August.
中国对铜的需求大量增加，但这一事实可能会如何影响铜价就是另外一回事了。
Demand for copper is surging in China. How that fact might affect prices of the metal is another story.
这导致了上海期货交易所的铜价高于伦敦金属交易所的铜价。套利者迫切希望从这一价差中获利。
This is what resulted in the premium on SHFE copper relative to LME prices. Arbitrageurs were eager to take advantage of the price differential.
就在此时，金融市场的铜价（以及一系列其他大宗商品的价格）正因为交易员担心欧洲金融危机打压全球需求而大幅下跌。
Right as that was happening , financial market prices for copper - along with a host of other commodities - were slumping as traders fretted that Europe's financial crisis could swamp global demand.
本尼迪克特溶液是硫酸铜(二价)的堿性溶液，它可以通过还原糖被还原为不溶性的铜(一价)的氧化物，产生红色的沉淀物。
Benedict 's solution is an alkaline solution of copper (ii) sulfate, which is reduced to insoluble copper (I) oxide by reducing sugars, giving a red precipitate.
他把铜价的疲软归因于美国公众对高利率将遏制经济增长的担心，美国股市上星期的下跌是一年多来下跌幅度最大的一次。
He attributed the slump in the copper price to the biggest weekly drop of US stocks in more than a year amid concern higher interest rates will curb economic expansion.
可能会出现一段时间的价格回调，尤其是铜价。
We might now see a period of price correction, especially for copper.
本文从六个方面系统地分析了制约和影响中国铜价的多种因素，文中对铜价的走势预测具有一定的现实指导意义。
This article analyses in 6 aspects the multi-elements to restrict the development of China's copper market, which has certain guideline significance in forecasting copper price's trends.
第一部分为二醋酸碘苯、二价铜离子及联咪唑促进下的1，3-二羰基化合物与亚砜的反应研究。
For the first part, we stressed reactions of sulphoxide with 1,3-dicarbonyl compounds promoted by Cu(OAc)2·H2O, 2,2′-biimidazole and iodobenzene diacetate.
在配合物1中，结构中存在一价铜，并且这个一价铜嵌在所有的二价铜之间，这就阻碍了顺磁离子之间的磁耦合，所以这个配合物呈现出非常弱的反铁磁耦合。
In the structure of 1, CuI ion site between the two CuII ions, which blocks the magnetic coupling of the spin center, so the compound show very weak antiferromagnetic behaviors.
举例来说，由于中国铜储备增长，自年初以来持续走高的铜价在过去一个月出现了回落。
Copper prices, for example, have weakened over the last month after a sustained rally since the start of the year as China's stockpiles of the metal have risen.
举例来说，由于中国铜储备增长，自年初以来持续走高的铜价在过去一个月出现了回落。
Copper prices, for example, have weakened over the last month after a sustained rally since the start of the year as China's stockpiles of the metal have risen.
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