And, she loved metallurgy as I do, and she named one of her dogs Maggie, and one of her dogs Molly, magnesium and molybdenum.
她和我一样都喜欢冶金学,她给一条狗取名为麦琪,另一条取名为莫丽,镁和钼。
But, the reaction says I need twice as much mag as tickle if this reaction is going to go to completion.
但是这个反应告诉我们,镁的量应该是四氯化钛的两倍,如果要反应完全的话。
So between b e, and b, between n and o, magnesium and aluminum, and then phosphorous and sulfur, what we see here is that we're kind of going down, or quite specifically, we are going down.
比如从铍到硼,从氮到氧,从镁到铝,从磷到硫,我们在这些地方看到有点下降,或者可以明确地说,我们确实在下降。
OK, so now the question is, how do we know the first place that this is a suitable reductant?
好的,现在的问题是,我们如何能知道第一步中,镁是一个合适的还原剂?
So, I went to the library and I looked up Advances in Molten Salt Chemistry volume six because there's an article in there about the chemistry and electrochemistry of magnesium production.
所以我去了趟图书馆,查阅了,第六版的《高级熔融态盐化学》,因为那里面有一篇关于生产镁的,化学和电化学的文章。
Aluminum and magnesium are both made by ionic liquid electrolysis, just as I showed you last day.
铝和镁都是,由离子液体电解而成,就像我昨天讲的。
And at the end of the reaction, you have the reactor consumed of titanium tetrachloride magnesium.
在反应的结尾时,反应器里面,消耗了四氯化钛和镁。
But, we know for example that magnesium, when it reacts, it reacts with both of its electrons, not just one of its electrons.
但是我们知道,拿镁来说,当它发生反应的时候,并不只是,某一个电子反应,而是两个价电子都发生反应。
It contains an million tons of magnesium, 1,000,000 tons, which is more than has ever been produced in one year by all the magnesium plants in the world.
它含有一百万吨镁,一百万吨,那比我们每年世界各地,生产镁的工厂的总产量还要多。
He said look at sodium, magnesium, aluminum, silicon, phosphorus, sulfur, chlorine, potassium.
他说,看,钠,镁,铝,硅,磷,硫磺,氯,钾。
And, seawater contains only 3.7% of the total magnesium present 7% in the Earth's crust.
而海水只含有,地表镁总量的,3。
This is much less that two times 1,054, so therefore mag is the limiting reagent.
054摩尔,远比两倍要少,镁是极限反应物。
I can only make as much titanium as is consumed by the available magnesium.
有多少可以被消耗的镁,就能得到相应的钛。
So, the question becomes, well, what are the resources for magnesium?
所以问题就变成了,镁资源从哪里来呢?
We have to invent a process, a chemical extraction process that will make the production of magnesium cheaper so that we will have the opportunity to avail ourselves of energy-efficient materials.
我们必须发明出一种方法,一种化学提炼方法,能够使生产镁变得更便宜,那样我们才有机会,让我们自己用上高效能的材料。
So, clearly magnesium resources are ubiquitous and virtually inexhaustible.
所以显然镁资源是无处不在的,几乎是用之不竭的。
So, aluminum is about 50% denser than magnesium.
所以铝的密度比镁大一倍。
Annual production of magnesium is about 600,000 tons per year.
每年的镁产量,大约是六十万吨。
So, this is about a quarter of the density of steel.
所以镁的密度是贴的四分之一。
Magnesium is a liquid but it's less dense than magnesium chloride.
镁是液体,但是它的密度比氯化镁要小。
And magnesium is over a dollar a pound.
而镁是一美元一磅。
Do we have magnesium to do this?
我们有镁来做这些吗?
Magnesium was 60,000 tons.
镁的产量为每年6万吨。
So, here's magnesium. It's very light.
我们回到原题,这是镁,它很轻。
And, this involves the reaction of titanium tetrachloride with magnesium to form magnesium chloride plus titanium And, this was invented in 1937 by W. J. Kroll.
四氯化钛和镁,反应生成氯化镁和钛,1937年W。J。克劳尔发明了这个方法。
It's tickle. This is mag.
而是tickle,这是镁。
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