Electrolysis: processes – compositions used therein – and methods – Electrolytic synthesis – Preparing inorganic compound
Patent
1998-10-23
2000-08-15
Gorgos, Kathryn
Electrolysis: processes, compositions used therein, and methods
Electrolytic synthesis
Preparing inorganic compound
210663, 210668, 210669, 210687, 210688, C25B 134
Patent
active
061030929
ABSTRACT:
The method reduces the concentration of multivalent metal cations such as calcium, magnesium, iron, nickel, and chromium in brine solution containing a water-soluble metal chelating agent such as sodium gluconate. The method comprises subjecting the brine to primary brine treatment, and then readjusting the brine solution to a pH ranging from about 1.5 to about 5.5, and contacting the brine solution with at least one resin bed comprising a chelating ion exchange resin, typically at a temperature ranging from about 10.degree. C. to about 90.degree. C. and at a flow rate ranging from about 4 to about 32 resin bed volumes per hour; and recovering the brine solution.
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Chemical Abstracts, vol. 113, No. 20, Nov. 12, 1990.
International Search Report No date available.
Brown Sterling B.
General Electric Company
Gorgos Kathryn
Johnson Noreen C.
Keehan Christopher
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