Fractional deionization process

Details for Australian Patent Application No. 2002359797 (hide)

Owner Aquatech International Corporation

Inventors Sharma, Devesh; Chidambaran, Ravi; Raina, Pavan

Agent Watermark

Pub. Number AU-B-2002359797

PCT Number PCT/US02/41062

PCT Pub. Number WO2003/053859

Priority 60/343,323 20.12.01 US

Filing date 19 December 2002

Wipo publication date 9 July 2003

Acceptance publication date 31 January 2008

International Classifications

B01D 61/44 (2006.01) Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration

B01D 61/48 (2006.01) Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration

B01D 61/50 (2006.01) Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration

B01D 61/52 (2006.01) Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration

B01J 47/08 (2006.01) Ion-exchange processes in general

C02F 1/46 (2006.01) Treatment of water, waste water, or sewage - by electrochemical methods

C02F 1/469 (2006.01) Treatment of water, waste water, or sewage - by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis

C02F 1/68 (2006.01) Treatment of water, waste water, or sewage - by addition of specified substances, e.g. trace elements, for ameliorating potable water

C02F 11/18 (2006.01) Treatment of sludge - by thermal conditioning

C02F 1/42 (2006.01) Treatment of water, waste water, or sewage - by ion-exchange

C02F 5/00 (2006.01) Softening water

C02F 11/00 (2006.01) Treatment of sludge

Event Publications

3 April 2003 Complete Application Filed

  Priority application(s): 60/343,323 20.12.01 US

2 October 2003 Application Open to Public Inspection

  Published as AU-B-2002359797

31 January 2008 Application Accepted

  Published as AU-B-2002359797

29 May 2008 Standard Patent Sealed

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