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Treatment of Metallurgical Coke with an Aqueous Solution of Sodium Tetraborate

机译：四硼酸钠水溶液处理冶金焦

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摘要

The effect of the out-of-furnace treatment of metallurgical coke with aqueous solutions of inorganic substances on changes in the coke reactivity index (CRI) and coke strength after reaction (CSR) was studied. It was found that the treatment of coke with an aqueous solution of sodium tetraborate (Na_2B_4O_7 ? 5H_2O) exerted the greatest effect on an improvement in the qualitative characteristics (CRI and CSR). Changes in the values of CRI and CSR of metallurgical coke as functions of the concentration and amount of the solution of sodium tetraborate were studied. It was found that the greatest improvement in the values of CRI and CSR of coke was reached upon treatment with a 7.5% solution of Na_2B_4O_7 using 45 1 per ton of coke. In this case, the coke hot strength increased by 18.8 rel %, whereas the reactivity index decreased by 13.2 rel%.
机译：研究了用无机物水溶液对冶金焦进行炉外处理对焦反应性指数（CRI）和反应后焦强度（CSR）变化的影响。发现用四硼酸钠水溶液（Na_2B_4O_7→5H_2O）处理焦炭对改善定性特性（CRI和CSR）发挥了最大的作用。研究了冶金焦炭的CRI和CSR值随四硼酸钠溶液浓度和含量的变化。已经发现，用7.5％的Na_2B_4O_7溶液（每吨焦炭使用45 1）处理后，焦炭的CRI和CSR值得到了最大的改善。在这种情况下，焦炭热强度提高了18.8 rel％，而反应活性指数降低了13.2 rel％。

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  • 来源
    《Solid Fuel Chemistry》 |2010年第1期|p.12-15|共4页
  • 作者

    V. A. Tamko; I. V. Zolotarev; V. I. Saranchuk; T. G. Shendrik; E. I. Zbykovskii; I.I. Shvets;

  • 作者单位

    Litvinenko Institute of Physicoorganic and Coal Chemistry, National Academy of Sciences of Ukraine, Donetsk, 340114 Ukraine;

    Litvinenko Institute of Physicoorganic and Coal Chemistry, National Academy of Sciences of Ukraine, Donetsk, 340114 Ukraine;

    Litvinenko Institute of Physicoorganic and Coal Chemistry, National Academy of Sciences of Ukraine, Donetsk, 340114 Ukraine;

    Litvinenko Institute of Physicoorganic and Coal Chemistry, National Academy of Sciences of Ukraine, Donetsk, 340114 Ukraine;

    Litvinenko Institute of Physicoorganic and Coal Chemistry, National Academy of Sciences of Ukraine, Donetsk, 340114 Ukraine;

    Litvinenko Institute of Physicoorganic and Coal Chemistry, National Academy of Sciences of Ukraine, Donetsk, 340114 Ukraine;

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