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公开(公告)号:US3972810A
公开(公告)日:1976-08-03
申请号:US488630
申请日:1974-07-15
申请人: Randhir C. Chopra
发明人: Randhir C. Chopra
摘要: Trivalent chromium, hexavalent chromate, molybdate and zinc are removed from a fluid. The fluid is simultaneously treated with a weak base anion exchange resin and a weak acid cation exchange resin to remove the chromium, chromate, molybdate and/or zinc.
摘要翻译: 从流体中除去三价铬,六价铬酸盐,钼酸盐和锌。 用弱碱阴离子交换树脂和弱酸阳离子交换树脂同时处理流体以除去铬,铬酸盐,钼酸盐和/或锌。
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公开(公告)号:US4057494A
公开(公告)日:1977-11-08
申请号:US705171
申请日:1976-07-14
申请人: Randhir C. Chopra
发明人: Randhir C. Chopra
摘要: Trivalent chromium, zinc, hexavalent chromate and molybdate can be removed from a fluid by contacting the fluid with an ion exchange resin bed comprising a mixture of a weak base anion exchange resin and a weak or strong acid cation exchange resin in hydrogen form to remove the metal values.
摘要翻译: 可以通过使流体与含有弱碱性阴离子交换树脂和弱酸或阳离子阳离子交换树脂的混合物的离子交换树脂床接触氢气形式来从流体中除去三价铬,锌,六价铬酸盐和钼酸盐,以除去 金属价值。
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