浅谈草酸钠对氢氧化铝粒度和分解率的影响

Effect of sodium oxalate on particle size and decomposition rate of aluminum hydroxide

在纯拜耳法生产氧化铝的过程中,随着溶液中草酸钠的富集,草酸钠对氢氧化铝粒度和分解率的变化有着密切的关系,同时对生产稳定性和产品质量有着直接关系,如何稳定草酸钠对氢氧化铝粒度和分解率的影响是各企业长期攻关的课题。本文从不同晶种量下草酸钠对其影响,研究草酸钠添加量、搅拌强度对不同晶种添加量下分解率和氢氧化铝粒度的影响,为企业解决草酸钠对氢氧化铝粒度和分解率的影响提供参考依据。

In the process of alumina production by pure Bayer process,with the enrichment of sodium oxalate in solution,sodium oxalate has a close relationship with the change of particle size and decomposition rate of aluminum hydroxide,and has a direct relationship with production stability and product quality.How to stabilize the influence of sodium oxalate on particle size and decomposition rate of aluminum hydroxide is a long-term research topic for enterprises.In this paper,the influence of sodium oxalate on the particle size and decomposition rate of aluminum hydroxide with different amount of crystal seed is studied,which provides reference for enterprises to solve the influence of sodium oxalate on the particle size and decomposition rate of aluminum hydroxide.