发明授权
US4381350A Process for the preparation of high density ion exchange resins and ion exchange resins thus obtained 失效
用于制备由此获得的高密度离子交换树脂和离子交换树脂的方法

Process for the preparation of high density ion exchange resins and ion
exchange resins thus obtained
摘要:
A process for obtaining a dense ion-exchange anionic resin and the product so obtained. The resin is of the type based on a co-polymer of styrene and divinylbenzene. The process involves a liquid phase treatment comprising contacting the resin with bromide in a liquid phase and simultaneously charging the liquid phase with gaseous chlorine while in contact with the resin for reaction to provide a styrene divinylbenzene copolymer ion-exchange anionic resin containing bromine and chlorine groups.
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