To develop an effective method for removing sulfur from spent refining slag at high temperature, the slag was treated in argon atmosphere using desulfurization ash as desulfurization reagent. Experimental results revealed that at 1773 K, molar ratio of CaS to CaSO₄ + CaSO₃ of 3:1, and reaction time of 2 hours, sulfur removal efficiency reached a maximum of 67.9 pct. The optimal ratio indicates the reaction of CaS and CaSO₄ + CaSO₃ to generate S₂ may predominante during processing.

中文翻译：

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废钢包精炼炉炉渣的高温脱硫

为了开发一种在高温下从精炼炉渣中去除硫的有效方法，使用脱硫灰作为脱硫剂在氩气气氛中对炉渣进行处理。实验结果表明，在1773 K下，CaS与CaSO ₄  + CaSO ₃的摩尔比为3：1，反应时间为2小时，脱硫效率最高达到67.9 pct。最佳比例表明CaS和CaSO ₄  + CaSO ₃生成S _2的反应可能在加工过程中占主导地位。