从含有加工残留物之组成物回收鎓氢氧化物之改良方法;PROCESS FOR IMPROVED RECOVERY OF ONIUM HYDROXIDE FROM COMPOSITIONS CONTAINING PROCESS RESIDUES

摘要

本发明提供一种从含有鎓离子及加工残留物之组成物回收鎓氢氧化物之方法，其包括提供含有鎓离子及加工残留物之组成物；将一定量的界面活性剂添加至该组成物中以获得经界面活性剂改质之组成物；提供阳离子交换介质；藉由将该经界面活性剂改质之组成物施加至该阳离子交换介质中来收集该等鎓离子，其中该等鎓离子变成与该阳离子交换介质结合且被该阳离子交换介质截留，且该加工残留物及该界面活性剂不会变成与该阳离子交换介质结合且实质上不会被该阳离子交换介质截留；及藉由将含有阳离子之氢氧化物组成物施加至该阳离子交换介质中来从该阳离子交换介质以鎓氢氧化物形式回收该等鎓离子。; adding a quantity of a surfactant to the composition to obtain a surfactant-modified composition; providing a cation exchange media; collecting the onium ions by applying the surfactant-modified composition to the cation exchange media wherein the onium ions become bound to and retained by the cation exchange media and the process residue and the surfactant do not become bound to the cation exchange media and are substantially not retained by the cation exchange media; and recovering the onium ions from the cation exchange media as an onium hydroxide by applying a cation-containing hydroxide composition to the cation exchange media.