Liquid purification or separation – Processes – Ion exchange or selective sorption
Patent
1995-09-18
1997-02-18
Nessler, Cynthia L.
Liquid purification or separation
Processes
Ion exchange or selective sorption
210668, 210669, 210673, 210683, 423531, 159 473, C02F 142
Patent
active
056038399
ABSTRACT:
A process for concentrating a waste sulphuric acid stream containing metal sulphates including iron sulphate comprises the steps of subjecting the stream to an ion exchange operation to produce an acid-rich stream and a salt-rich stream and, concentrating the acid-rich stream to produce a concentrated sulphuric acid stream.
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Cecebe Technologies Inc.
da Costa Philip Mendes
Nessler Cynthia L.
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