用钠离子选择电极测定γ-Al_2O_3中的钠含量

• 作 者: 朱小帆
• 机 构: 抚顺石油三厂,
• 出 处: 石油炼制与化工
• 发表日期: 1982年09期
• 关键词: 钠离子选择电极 Al_2O_3 铝酸钠 硝酸生产 火焰光度计 操作条件 氧化铝 热水 杂质 浸取

用铝酸钠和硝酸生产γ-氧化铝时,需要控制杂质钠的含量.钠一般先用酸抽提,然后以火焰光度计测定.采用此法取得一个结果需要3小时,且数值有时偏低.我们用热水浸取,再用钠离子选择电极进行分析,既提高了分析的灵敏度,节省了分析时间,还节约了试剂,改善了操作条件,从而达到控制生产的目的.

Sodium aluminate and nitric acid production of γ-alumina, the need to control the content of impurities in sodium sodium is generally the first with acid extraction, and then measured by flame photometer to obtain a result using this method takes 3 hours and the value is sometimes low We use hot water leaching, and then the sodium ion selective electrode for analysis, not only improve the sensitivity of the analysis, saving analysis time, but also saves reagents and improve the operating conditions, so as to achieve the purpose of controlling the production.