公开(公告)号：US5868915A

公开(公告)日：1999-02-09

申请号：US717781

申请日：1996-09-23

Applicant: Gary C. Ganzi ,  Felice DiMascio ,  Anthony J. Giuffrida ,  Frederick Wilkins ,  Paul Springthorpe

Inventor： Gary C. Ganzi ,  Felice DiMascio ,  Anthony J. Giuffrida ,  Frederick Wilkins ,  Paul Springthorpe

IPC: B01D61/48 ,  B01J47/08 ,  C02F1/42 ,  C02F1/44 ,  C02F1/469 ,  B01D61/44

CPC classification number: B01D61/48 ,  B01J47/08 ,  C02F1/42 ,  C02F1/469 ,  C02F1/4695 ,  C02F2103/08

Abstract: An improved electrodeionization apparatus and method are provided. The electrodeionization apparatus includes electrolyte compartments, ion-concentrating, and ion-depleting compartments, having electroactive media therein. The electroactive media can be induced to have a reversible change in its chemical or electrical properties upon imposition of an external electrical field or the presence of an electrically charged substance. The change in chemical or electrical properties of the media results in a desired change in the transport or chemical properties of the media. The incorporation of the improved electroactive media also provides for an improved, and more reliable electrodeionization process in applications requiring chemical and temperature resistance media, where localized pH shifts would be harmful to the product being deionized, under temperature and chemical conditions of the liquid to be processed, or under circumstances where traditional media would tend to foul.

Abstract translation: 提供了一种改进的电去电离装置和方法。 电去离子装置包括其中具有电活性介质的电解质隔室，离子浓缩和离子消耗隔间。 在施加外部电场或带电物质的存在时，可以诱导电活性介质在其化学或电学性质上具有可逆的变化。 介质的化学或电学性质的变化导致介质的运输或化学性质的期望的变化。 改进的电活性介质的并入还提供了在需要化学和耐温介质的应用中的改进的和更可靠的电去离子法，其中局部pH偏移将对待去离子的产物在待处理的液体的温度和化学条件下是有害的 处理或在传统媒体倾向犯规的情况下。