文中对201×7强碱性离子交换树脂负载的铁氰化物进行了解吸研究,以解决酸洗脱树脂过程中出现的问题.采用水合肼和氯化钠混合溶液可有效解吸树脂上负载的铁氰化物;在室温条件下,解吸溶液为2%水合肼+100g/L氯化钠时,三价铁解吸率可以达到98%以上.在试验条件下,测得解吸速率常数k=8.88×10-4/s,60min基本达到解吸平衡.随着温度的升高,解吸速率逐渐增大,表明解吸过程是一个吸热过程,升温有利于解吸进行,但解吸过程的表观活化能为0.625kJ/mol,表明反应速率对温度不是很敏感,解吸过程可以在室温下进行.
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