通过在还原期S 合金化和二次造亚酸性炉渣工艺，把S的收得率提高到93％。
By S-allying and selected faint acidic slag technology during reduction period, the recovery yield of S is up to 93%.
炉渣可作为钾硅复合肥料，适用于缺钾或酸性土壤的改造。
The slag can be used as a potassium silicon compound fertilizer, suitable for amelioration of potassium-deficient or acid soils.
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