The new process to separate lactic acid from fermentative liquid through film ultrafiltering and ion exchanging is introduced.
介绍了采用膜分离与离子交换相结合分离乳酸的新工艺。
The results by author 's study on the accelerating effect in ion exchanging process with macroreticular ion exchange resin are reviewed systematically.
本文系统地回顾了作者在大孔离子交换树脂交换过程中的加速效应研究结果。
It is proposed that the process of removing fluorine with activated alumina is inappropriate to be termed as adsorption or ion exchanging, as lots of tests have shown.
通过大量的试验证明，活性氧化铝除氟不能简单归结为分子吸附或离子交换，要考虑具体的工艺过程。
Their methods include the use of strips of ion-exchanging plastic, braided with polystyrene to toughen them up....
他们的方法包括利用聚苯乙烯加固的离子交换塑料带。
The main catalysts used are PTC, strong acidic ion-exchanging resin, solid super acid, etc.
主要的催化剂有季铵盐、强酸性离子交换树脂、固体超强酸等。
Through selecting extracting solvent, extracting times and alkalinizing method, Oxymatrine is extracted and purified by ion-exchanging and re-crystallization.
通过对溶剂、提取次数、碱化条件的选择，用离子交换和重结晶的方法提取纯化氧化苦参碱。
Through selecting extracting solvent, extracting times and alkalinizing method, Oxymatrine is extracted and purified by ion-exchanging and re-crystallization.
通过对溶剂、提取次数、碱化条件的选择，用离子交换和重结晶的方法提取纯化氧化苦参碱。
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