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微量元素钠对铝用炭阳极质量的影响

China Nonferrous Metallurgy(2013)

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Abstract
就煅后焦中的微量元素钠对炭阳极质量的影响进行单因素试验,对炭阳极的CO_2反应性、空气反应性、空气渗透率和电阻率进行测试。结果表明:Na在(370~870)×10~(-6)时,炭阳极在CO_2中的残极率增大(增幅达9.45%),空气中的残极率降低(低至51.17%),空气渗透率和电阻率均降低;Na>870×10~(-6),炭阳极在CO_2中的残极率降低,在空气中的残极率有所增加,空气渗透率和电阻率均增大。。
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Key words
CO_2 reactivity,trace element,Na,air reactivity,carbon anode
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