制备氢氧化锆及其氧化锆含量和氧化钠含量的影响因素探究
Preparation of Zirconium Hydroxide and the Influence Factors of Its Main Content and Sodium Oxide Content
吴江 1杨丽莎 1邱才华 1刘国栋1
作者信息
- 1. 江西晶安高科技股份有限公司,江西 南昌 330508;江西省锆资源综合利用工程技术研究中心,江西 南昌 330508
- 折叠
摘要
将氧氯化锆和氢氧化钠作为原料采用直接沉淀法制备 40%氢氧化锆,其中氢氧化锆氧化锆含量与氢氧化钠溶液浓度、氧氯化锆投料时间、氢氧化钠溶液温度、反应温度、反应时间密切相关.氢氧化锆中氧化钠含量与m氢氧化钠/氧氯化锆、洗涤情况、反应温度密切相关,与反应时间无明显相关性.制备40%氢氧化锆氧化锆含量最佳条件为:氢氧化钠溶液浓度为 32%,m氢氧化钠/氧氯化锆为 1.6倍,氧氯化锆投料时间为 1 min,氢氧化钠溶液温度为 10℃,反应温度为60℃,反应时间为20min.
Abstract
40%zirconium hydroxide was prepared from zirconium oxychloride and sodium hydroxide by direct precipitation method,the main content of zirconium hydroxide is closely related to the concentration of sodium hydroxide base,the feeding time of zirconium oxychloride,the sodium hydroxide temperature,the reaction temperature and the reaction time.The content of sodium oxide in zirconium hydroxide was closely related to the sodium hydroxide of zirconium oxychloride、the reaction temperature and washing conditions,but there was no significant correlation with reaction time.The optimum conditions for preparing 40%zirconium hydroxide were as follows:the concentration of sodium hydroxide is 32%,the sodium hydroxide of zirconium oxychloride is 1.6 times,the feeding time of zirconium oxychloride is 1 min,the sodium hydroxide temperature is 10℃,and the reaction temperature is 60℃,the reaction time is 20 min.
关键词
氧化锆含量/氧化钠含量/碱浓度/投料时间/氢氧化钠温度/反应温度/反应时间Key words
zirconia content/sodium oxide content/alkali concentration/feed time/sodium hydroxide temperature/reaction temperature/reaction time引用本文复制引用
出版年
2024
NETL
NSTL
万方数据