Liquid purification or separation – With alarm – indicator – register – recorder – signal or... – Responsive to fluid flow
Patent
1977-12-23
1979-06-05
Hart, Charles N.
Liquid purification or separation
With alarm, indicator, register, recorder, signal or...
Responsive to fluid flow
210 38B, C02B 152
Patent
active
041572980
ABSTRACT:
Ferric ions are removed from a concentrated aqueous zinc solution having a pH value in the range of about 0 to about 1.3, by contacting the zinc solution with a cation exchange chelate resin containing aminocarboxylic acid and/or iminodicarboxylic acid groups.
REFERENCES:
patent: 3004932 (1961-10-01), Despic
patent: 3352801 (1967-11-01), White
patent: 3715339 (1973-02-01), Rainer
Koerts Kees
Pannekeet Wilhelmus
Smakman Robert
van den Berg Gerrit H.
Akzona Incorporated
Cintins Ivars
Green Robert F.
Hart Charles N.
Young Francis W.
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