摘要
碱土金属碳酸盐是所有碳酸盐中最稳定的一族·在热力学分析的基础上 ,研究了SrCO3 在各种条件下的热分解规律·实验结果表明 ,添加Al2 O3 ,碳或减少系统分压均可降低SrCO3的分解温度 ,其中添加Al2 O3 的影响最大·当向SrCO3 中添加碳时 ,除降低其分解温度外 ,所产生的CO还可重复利用·
At the atmosphere pressure,SrCO 3 is decomposed into SrO and CO 2 when heated. Based on thermodynamics analysis,thermal decomposition of SrCO 3 was studied on different conditions. The results show that decomposition temperature of SrCO 3 decreases when Al 2O 3 or C are added respectively, or partial pressure of the system is lowered. The effect of adding Al 2O 3 on the temperature is the greatest among the tested factors. When carbon is added to SrCO 3, not only the decomposition temperature of SrCO 3 can be lowered but also CO produced can be reused as a by-product.
出处
《东北大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2002年第8期776-778,共3页
Journal of Northeastern University(Natural Science)
基金
宁夏科委重大科技攻关项目 ( 2 0 0 1 118)
关键词
真空铝热还原法
SrCO3
锶
热分解
添加剂
碱土金属
碳酸锶
thermal reduction of aluminium
vacuum heat reduction
strontium
SrCO 3
thermal decomposition
additive
alkaline earth
