煅烧
Soda ash was obtained by calcining sodium bicarbonate. 重碱经煅烧得纯碱，母液经蒸发得硫酸铵。
The relation beside the temperature of the product calcined and the final calcining temperature in production of prebaked-anode has been discussed. 并进一步讨论了预焙阳极生产工艺中，制品焙烧温度与石油焦煅烧最终温度的关系。
