Method of purifying Fischer-Tropsch derived water

Details for Australian Patent Application No. 2003276158 (hide)

Owner Sasol Technology (Pty) Ltd

Inventors Du Plessis, Gert, Hendrik; Phillips, Trevor David; Du Toit, Francois Jacobus; Van Der Walt, Janette; Dancuart Kohler, Luis Pablo Fidel; Koper, Edward Ludovicus

Agent Madderns

Pub. Number AU-B-2003276158

PCT Number PCT/ZA03/00078

PCT Pub. Number WO2003/106353

Priority 60/390,688 18.06.02 US; 2002/4850 18.06.02 ZA

Filing date 18 June 2003

Wipo publication date 31 December 2003

Acceptance publication date 29 January 2009

International Classifications

C02F 3/04 (2006.01) Biological treatment of water, waste water, or sewage - using trickle filters

B01D 11/04 (2006.01) Solvent extraction - of solutions which are liquid

B01D 61/14 (2006.01) Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration - Ultrafiltration

C02F 3/08 (2006.01) Biological treatment of water, waste water, or sewage - using moving contact bodies

C02F 3/12 (2006.01) Biological treatment of water, waste water, or sewage - Activated sludge processes

C02F 3/28 (2006.01) Biological treatment of water, waste water, or sewage - Anaerobic digestion processes

C02F 5/06 (2006.01) Softening water

C02F 9/00 (2006.01) Multistep treatment of water, waste water or sewage

C02F 9/02 (2006.01) Multistep treatment of water, waste water or sewage - involving a separation step

C02F 9/14 (2006.01) Multistep treatment of water, waste water or sewage - at least one step being a biological treatment

C07C 51/44 (2006.01) Preparation of carboxylic acids or their salts, halides, or anhydrides

C07C 51/48 (2006.01) Preparation of carboxylic acids or their salts, halides, or anhydrides

C07C 53/08 (2006.01) Saturated compounds having only one carboxyl group bound to an acyclic carbon atom or hydrogen

C07C 53/122 (2006.01) Saturated compounds having only one carboxyl group bound to an acyclic carbon atom or hydrogen

C07C 53/124 (2006.01) Saturated compounds having only one carboxyl group bound to an acyclic carbon atom or hydrogen

C07C 53/126 (2006.01) Saturated compounds having only one carboxyl group bound to an acyclic carbon atom or hydrogen

C02F 1/04 (2006.01) Treatment of water, waste water, or sewage - by distillation or evaporation

C02F 1/26 (2006.01) Treatment of water, waste water, or sewage - by extraction

C02F 3/00 (2006.01) Biological treatment of water, waste water, or sewage

Event Publications

19 February 2004 Complete Application Filed

  Priority application(s): 60/390,688 18.06.02 US; 2002/4850 18.06.02 ZA

26 February 2004 Application Open to Public Inspection

  Published as AU-B-2003276158

29 January 2009 Application Accepted

  Published as AU-B-2003276158

28 May 2009 Standard Patent Sealed

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