Regenerating ion exchangers from desalinating aq solns - with pre-treatment of one ion exchanger using spent regenerating agent of other
Regeneration of ion exchangers used in desalinating aq. solns., and worked esp. in H-cycle, takes placed by pre-treating one ion-exchanger, before its regeneration, with the used regenerating agent of the other ion exchanger. In pre-treatment, ions extd. from desalinated soln. are displaced almost c...
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Main Author | |
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Format | Patent |
Language | English German |
Published |
30.10.1975
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Subjects | |
Online Access | Get full text |
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Summary: | Regeneration of ion exchangers used in desalinating aq. solns., and worked esp. in H-cycle, takes placed by pre-treating one ion-exchanger, before its regeneration, with the used regenerating agent of the other ion exchanger. In pre-treatment, ions extd. from desalinated soln. are displaced almost completely by the homologous ions of the used regenerating agent. A 1st soln. is obtd., contg. total amt. of ions extd. from the desalinated soln. and opt. a small excess of used regenerating agent. On regeneration of the pre-treated ion-exchangers, a 2nd soln. is obtd., separately from 1st. 2nd soln. contains only the salt formed from the regenerating agents and opt. a slight excess of the regenerating agent for the pre-treated ion exchanger. Method is useful in treatment of brackish-, sea- and other waters, food industry solns., e.g. sugar solns., waste waters, e.g. from metal-working industry and waters contg. toxic components. |
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Bibliography: | Application Number: DE19742418594 |