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【大国工匠 】潘从明:滴水掘金 精炼人生

2017-04-30 10:21:06   央视网

1996年,技校毕业的潘从明参加工作来到了贵金属冶炼厂,出身农村的他第一次见到了贵金属,那个时候他才知道,世界上还有比金银更稀有珍贵的金属。而这些金属正是重要的战略储备资源,在军工、航天、医疗等领域不可或缺。

金川集团贵金属冶炼厂 精炼师 潘从明:提纯难度最大的就是最后精炼次数的确定。精炼次数多了,造成贵金属白白流失;精炼次数少了,达不到99.99%的纯度。

潘从明想弄明白,如何能从黑乎乎的镍矿废渣里提取出更多的贵金属,因此,每一道工序,每一步操作,他都要问个为什么。掌握了贵金属精炼提取过程中每一步的化学反应,潘从明也发现了每一次提纯时溶液颜色的微妙变化。

金川集团贵金属冶炼厂 精炼师 潘从明:化验分析纯度跟不上,往往影响了我们的生产周期。我就想,能不能根据颜色来判断。

依靠颜色来判断贵金属精炼次数,这个做法颠覆了潘从明师父们此前的所有经验。

潘从明的师父 李文浩:关键的那几个步骤颠覆掉了。过去是固定的,我们的工艺提纯,六到七遍。现在提取就两到三遍。

潘从明的徒弟 杨万虎:师父告诉我们说,这种颜色的变化必须要学会。我们要判断精炼到哪一遍能够到合格产品的那一步。

为了减少由于化学检验滞后,贵金属过多遍数提纯带来的损失,潘从明试图寻找不同纯度的贵金属所对应的溶液颜色。

金川集团贵金属冶炼厂 精炼师 潘从明:刚开始总结了各种贵金属的颜色,记不住,记不住就用小孩子的彩笔在家里做成变色卡,一个一个来对照。

潘从明的妻子 姜小红:本子上到处画的都是,我说你不行就拿到班上去画去吧,家里面实在是太难看了。

经过2000多次的试验,潘从明能够通过颜色精准判断贵金属的纯度,准确度与化学检验结果一致。

金川集团贵金属冶炼厂 精炼师 潘从明:这个时候心要静,屏住呼吸,高度的专注,仔细观察。这次就算萃取完全了。这就是我们这次的分析化验检测结果,它达到了99.994%。

如今,潘从明发明的颜色判断法已经替代了传统铂族贵金属精炼提纯工艺,在全国被广泛应用。以颜色判断法为基础,潘从明在杂质分离、回收等铂族贵金属精炼提纯工艺上的研究发明已经有96项。我国矿石里伴生的铂族贵金属探明储量仅占全球储量的0.39%,他们中的90%以上都是潘从明所在班组从矿渣中提取出来的,而且他们的工艺和技术达到国际领先水平。

潘从明在业内鼎鼎有名,有不少企业出重金来挖他,可潘从明还是选择留下来。

​金川集团贵金属冶炼厂 精炼师 潘从明:一直觉得我的工作没干到位,还有许多活还没干。我认为钻研技术,解决难题,就是最大的乐趣。

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