本文研究了废铬鞣液在浸酸、铬鞣和复鞣循环系统中的变化。
The changes of used chrome tan liquor in pickling -tanning and retanning recycling system had been study.
对传统中和尾气吸收装置进行改造，利用磷酸吸收中和尾气中的气氨，循环吸收液重新返回混酸系统使用。
The absorption device of neutralization tail gas is improved by phosphoric acid absorbing gas ammonia in neutralization tail gas and circulation absorption fluid returning to acid mixing unit.
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