Title:
【発明の名称】ブライン溶液中の金属イオン濃度を低下させる方法
Document Type and Number:
Japanese Patent JP2002528253
Kind Code:
A
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 DEG C. to about 90 DEG C. and at a flow rate ranging from about 4 to about 32 resin bed volumes per hour; and recovering the brine solution.
Inventors:
Silva, James Manio
Application Number:
JP2000578250A
Publication Date:
September 03, 2002
Filing Date:
June 24, 1999
Export Citation:
Assignee:
GENERAL ELECTRIC COMPANY
International Classes:
C01D3/14; C02F1/20; C02F1/28; C02F1/42; C02F1/58; C02F1/62; C02F1/64; C02F9/00; C25B15/08; B01D19/00; (IPC1-7): C02F1/58; B01D19/00; C02F1/20; C02F1/28; C02F1/42; C02F1/62; C02F1/64; C02F9/00; C25B15/08
Attorney, Agent or Firm:
Kenichi Matsumoto