提纯海绵锆生产剩料机理研究及改进措施

RESEARCH AND IMPROVEMENT MEASURES FOR SPONGE ZIRCONIUM PURIFICATION OF SURPLUS MATERIAL

为了提高海绵锆的回收率,通过采取提升粗锆质量、控制物料比重、增加氯化冷凝器伴热以及提高终点温度等措施,消除了夏季剩料。根据生产实践,从化学成分、粒度、比表面、吸附、水解等几方面对粗四氯化锫物理化学性质进行分析,剖析造成其挥发点升高的主要原因,为减少提纯剩料提供理论依据。

In order to improve sponge zirconium recovery rate, it takes measures such as improving coarse zirconium quality, controlling material specific gravity, increasing chlorination condenser heat tracing and raising final temperature, all these eliminate summer surplus. Combined with production practice, it analyzes coarse zirconium tetrachloride physical and chemical characters from chemical component, size, specific surface, adsorption and hydrolysis, dissects the main reason for raising volatilization point and offers theoretical foundation for decreasing purification surplus.