在挥发量为12～18%时，是得到较好硫酸盐实收率的焙烧条件。
The better baking condition is reached for reclamation of sulphate when the rate of volatilization is 12~18%.
研究了焙烧时硫酸盐的实收率和挥发分的排出量。
The reclamation of sulphate and output of vola-tirnatter in baking have been researched.
热力学分析表明，锡、锌的挥发脱除主要发生在弱还原焙烧阶段。
The thermodynamic analysis indicated that the removal of tin and zinc occurs mainly in the weak reduction roasting stage.
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