Cation exchange resins having an enhanced capacity for iron oxides
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United States of America Patent
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Mar 9, 1993
Grant Date -
N/A
app pub date -
Jan 24, 1992
filing date -
Jan 24, 1992
priority date (Note) -
Expired
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Abstract
The invention provides a method for removing transition metal oxides and soluble cation species from condensate at a relatively high removal efficiency. The method includes hydrating a strongly acidic dual morphology cation exchange resin in a macroeticular, desiccated morphology to produce a macroreticular, hydrated morphology. Condensate which is brought into contact with the resin when it is in a hydrogen form is purified. The condensate may, optionally, also be contacted with an anion exchange resin. The invention additionally provides a method for selecting cation exchange resins which are particularly suited for use in removing metal oxides from a condensate stream. The method serves to narrow the field of condidates for pilot-scale resin testing with industrial condensate.
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