七百四十八章:制造金属镝
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两架伊尔—76降落在机场后,就被牵引车,牵进巨兽工业的专属机库中。
随后机舱尾门打开,两名巨力苦工开着大型叉车,一件件将那些棺材般的铅柜,转运到集装箱重卡上。
数小时后,这些铅柜专场到龙溪滩工厂。
地底基地中,已经成立了一座工业化程度非常高的稀有金属提纯工厂,不过规模不大,日产能最多百吨左右。
这是因为等到索图雨林那边工厂建设完毕,金属提纯工作就会在那里进行。
届时,直接空运过来地,就是一块块高纯度银白色金属镝。
高度洁净的密封地底工厂内,叶青身穿防护服,内心无比激动地站在一旁,看着巨力苦工将一张张铅柜切割开来,从里面取出成堆的灰褐色金属锭。
这些都是金属纯度80%,镝含量在8%左右的原料。
在叶青面前,是一座座银白色金属筒造型的工业设备。在这些设备的尽头,还有数量众多的反应釜,和一座巨大的金属熔炉。
它们是提纯设备,巨力苦工已经开始搬运这些金属锭原料,将它们码放在一座真空电弧熔炉中,进行第一步熔炼工作。
稀土金属矿的提炼方法,既简单,也又复杂。
说简单,简单到某些不法分子,偷偷组织人手去矿山盗矿。只需要在矿山上打出密密麻麻的深孔,然后朝着这些深孔中注入特定的化学物质,就能与稀土矿产生反应,让内部金属元素氧化溶解。随后将这些溶液从深孔内抽取上来,注入到池子里,进一步处理。
怎么处理呢?
大致分为三类,酸法、碱法和氯化分解。抽取上来的溶液含有大量稀有金属元素,利用化学变化原理,将它们还原成结晶体,最后将这些结晶体研磨成粉,就得到了可以出售的稀土金属原料。
我国为何盗采稀土屡禁不止?就是因为利用这些可以随意采购到的大规模化学原料,便能从原矿中提取出稀土金属原料。
这些原料跟面粉似地堆在棚子里,每一袋走私出去,都能卖出上万元的价格。
但是这种方法,严重损害自然环境。通常一座山头打上孔,朝里面注入液体化学物质,整座山的植被都要枯萎。
那些抽取上来的溶液在化学还原过程中,需要用到大量水资源。不法分子直接将这些使用后的污染水,排入湖泊河流中,得到的唯一结果,就是水生物大面积死亡。
这是简单提纯方法。
复杂提纯方法,就是龙溪滩工厂里正在使用的这种。
巨力苦工将先前迷你工厂,通过研磨磁选,最后压铸成锭的原料,投入真空熔炉内,加热到三千五百度,气化内部所有的金属物质。接着这些金属气体,直接导入离心机中,依靠气体离心法,进一步提纯分离金属气体中的不同金属分子。
气体离心机,就这简简单单的三个字。
就代表了工业领域中,一个不可逾越的高度。
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