...It has been noted for its ability to separate specific ions in water, and is used in the production of pure water, the recovery of valuable ions from waste liquids, concentration, sugar liquid purification, purification of amino acids and antibiotics, and separation in the nuclear fuel cycle, and is a unit operation in chemical engineering. Ion exchange is a phenomenon that occurs between ions of the same type and equal amounts of electricity. When positively charged ions, i.e. cations, are exchanged, the opposite is called anion exchange. Ion exchangers are substances that are insoluble in electrolyte solutions, and can be inorganic or organic solids or liquids. ... *Some of the terminology that refers to "anion exchange" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…水中の特定イオンの分離として着目され,純水の製造,廃液中からの有価イオンの回収,濃縮,糖液精製,アミノ酸,抗生物質等の精製,核燃料サイクルにおける分離等に利用されており,化学工学の一つの単位操作となっている。イオン交換は電気的に同種の,かつ等量のイオンの間で生じる現象であり,正電荷をもつイオンすなわち陽イオンを交換する場合を陽イオン交換,逆の場合を陰イオン交換という。イオン交換体は電解質溶液に不溶性の物質で,無機質または有機質の固体である場合と液体の物質の場合とがある。… ※「陰イオン交換」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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