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        铀元素在这个湖泊之中以氧化铀的形式存在,也即俗称的黄饼。黄饼不溶于水,它被分散成了细小的颗粒,混杂在了湖水以及湖底的淤泥之中。        陈岳建造了巨大的沉淀池和过滤池,通过一系列手段,终于得到了一堆堆的黄色颗粒物。        这便是黄饼了。        但获取到黄饼,只是建造核电站的第一步。        氧化铀是无法直接裂变的,它首先需要和硝酸进行反应,以制取到四氟化铀。四氟化铀再次再次和氟反应,制取出六氟化铀。        将温度提升,六氟化铀便化成了气体。        到了这一步,那提前建造好的数万个转筒便有了作用。        此刻,虽然这里的气体都是六氟化铀气体,但它们之间也存在一点微小的差别。那差别便是,有的六氟化铀气体里的铀,是铀235,有的则是铀238。        铀235和铀238都是铀元素的同位素,两者性质比较接近,但对于核工业来说却天差地别。        铀235可以用于核裂变,铀238却因为结构较为稳固的缘故,核裂变速度极其缓慢,根本不具备利用价值。        所以,想要造核电站,必须要将这两种铀区分开。        这些转筒,便是用于区分铀235和铀238的装置。        因为分子量不同的缘故,这两种六氟化铀具备极轻微的质量差。将它们灌注到高速离心机转筒之中,借助离心机旋转所带来的巨大离心力,便可以将较重的铀238压到筒壁底部,较轻一点的铀235则位于上层。        然后再将这一部分气体分离出来,便成功提升了它的浓度。        这种办法效率很低很低,且一次分离大约只能将其浓度提升百分之零点几,甚至零点零几的样子,所以它便需要多次分离。        这数万个转筒需要相互串联。一个离心机里浓缩出来的富含六氟化铀235的气体会被送入下一个离心机再次浓缩,然后继续送往再下一个,如此接力,经过成千上万次浓缩,最终才能制造出浓度足够的六氟化铀235气体,再将其还原,便获取到了可以工业化利用的核燃料。        地球上的铀浓缩工厂通常有个一两千个离心机就够了,但木卫二这里,陈岳却弄了上万个。        还是因为现在陈岳的材料科技低了一点,造不出能承受足够高转速的离心机转子,便只能以数量换质量,用上万个离心机来达到地球时代几千个离心机的效果。        但就算如此,陈岳最终浓缩提炼出来的铀元素,其含量也不过只有4%到6%的样子。        这个浓度,造核弹差了点,但作为核电站的燃料还是可以的。        于是,在陈岳规划的工业区的边缘,一座紧靠着液态水湖泊的核电站拔地而起。        核电站需要大量的水来散热。这里的湖泊便正好起到了这个作用。        千辛万苦提炼出来的铀元素被送入到了反应堆里面。撤离了一部分中子减速棒之后,核裂变的链式反应立刻开始进行,巨量的热开始生成,

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