- Email: [email protected]
Hollow-fibre membrane devices
PATENTS
2. Uhlhorn, R.J.R. et aL (1992)J. of Membrane Science 66 259. 3. PCT Patent WO 90/092231, 23 August 1990. 4. Jia, M.-D. etal. (1993) J. of Membrane Science 82 15. 5. Koros, W.J. and Fleming, G.K. (1993) J. of! Membrane Science 83 t. 6. Sakamoto, Y. et al. (t992) J. of Alloys & Compounds 185 191. 7. Sakamoty, Y. et al. (1994) J. o f Alloys & Compounds 205 205. 8. Koresh, J.E. and Softer, A. (1987) Separation Science & Technology 22(2) 973. 9. Iwakawa, H. et al. (1992) Solid State Ionics 11 109.
10. Khainovsky, N.G. and Khairetdinov, E.E (1986) Izv. Akad. Nauk USSR, Ser. Khim. 17 84 (in Russian). 11. RSA Patent 965323, 24 June 1996. 12. Belyakov, V.N. (1992) DSc thesis, Kiev, Russia (in Russian). 13. Clearfield, A.J. (1964) Inorg. Chem. 3 I46. 14. Amftett, C. (1966) Inorganic ion exchangers, Mir, Moscow (in Russian). 15. Clark, J.H. (1995) Chemistry of waste minimization, Blackie Academic & Professional, London, 360. 16. Rodgers, J.D. et al. (1999) Environmental Science & Technology 33 1453. 17. Murphy, O.J. et al. (1992) Water Research 26(4) 443.
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For more information, contact: Professor Vtadimir Unkov, Applied Chemistry, inorganic Porous Media Group, Department of Chemistry, Universityof the Western Cape, Private Bag X17, Bellviile 7535, South Africa. Tel: +27 21 959 2911, Fax: +27 21 959 3055.
This article is based on a paper with the same title which was presented at Business Communications Company's 2000 Eighteenth Annual Membrane Technology/Separations Planning Conference, hem in Newton, Massachusetts during December 2000. For more information, contact: BCC Inc, 25 Van Zant Street, Norwalk, C T 06855, USA. Tel: +I 203 853 4266, Fax: +1 203 853 0348.
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Purifying poly-hydroxyalkanoates formed on a porous metallic alloy to provide an Applicant: Metabolix Inc, USA interracial zone identifiable by a gradient of A method is provided for isolating and purifying composition in at least one metallic element poly-hydroxyalkanoates (PHAs) from microbial across the zone between the ceramic membrane or plant biomass which contains PHA. This and the porous support. Processes using Active purifying structures for includes the step of extracting PHA from the composite materials in this way are used for the compact physico-biological filters biomass using at least one solvent, while production of synthesis gas comprising carbon Applicant/Inventor: J.-P. Dautais, France ' simultaneously subjecting the biomass to a monoxide and molecular hydrogen, whereby the The invention concerns active purifying filtration process to remove ceils. In a preferred synthesis gas is flee of harmful and/or inert structures operating in combination, both in embodiment of the method, an aqueous slurry gaseous diluents such as nitrogen. location and percentage, in association with of the biomass is directly extracted by din- Patent number: WO 00/68139 more traditional materials, for forming reactors filtration using an organic solvent. In a preferred Inventors: M.S. Kleefisch, C.A. Udovich, J.G. associated with compact filters. The invention is dia-filtration process, an aqueous slurry of Masin, T.E Kobylinski characterised by the active structures in various microbial cells comprising PHA is recirculated Publication date: 16 November 2000 forms and structures corresponding to spec- through a filtration membrane, where the ific or combined functions, defining in- membrane has a pore size small enough to reject Chelate-forming porous membrane terrupted membranes and active specialised individual cells, or such aggregates of cells, as Applicant: Asai Germanium Research sections for sludge extraction, dispensing and may exist in the slurry. As liquid is progressively Institute, Japan distributing fluids, promoting elimination of removed from the biomass slurry, an organic ! The patent describes a chelate-forming porous biodegradable pollution, denitrification and solvent, preferably a water-miscible solvent that i hollow-fibre membrane, produced by reacting disinfection, in particular. These active also is a solvent for the PHA, is added to the the residues of an epoxy compound, radiationstructures are integrated, as main or biomass slurry at a rate which approximates the grafted onto the surface of a polyethylene porous complementary components, in so-callec rate of liquid permeation through the filter, hollow-fibre membrane, with a compound saturated biological filters, mainly designed for thereby maintaining the volume of the biomass which reacts with the residues. Germanium small purifying plants. slurry. Impurities which are insoluble in water oxide is recovered by collecting germanium oxide Patent number: WO 00/66502 become dissolved in the solvent/water mixture ' in an aqueous solution through the use of the Publication date: 9 November 2000 and pass through the filter membrane, and when hollow-fibre membrane, and eluting the oxide. the organic solvent concentration reaches a Patent number: WO 00/67905 Fuel-cell membranes certain level, the PHA becomes soluble and Inventors: K. Saito, K. Sato, M. Akiba Applicant: Sandia Corporation, USA flows through the filtration membrane and can Publication date: 16 November 2000 The present invention comprises fuel cells, and be 'desolventised' to recover the polymer. porous material for use in the fuel cells. In a Patent number: WO 00/68409 Hollow-fibre membrane devices preferred embodiment, the porous material Inventor: D. Horowitz Applicant: Alberta Research Council, Canada comprises an etched and anodised silicon-based Publication date: 16 November 2000 A hollow-fibre membrane device, adapted for electrode. The invention also discusses methods bore-side feed, includes a split annular disc as a for embossing and moulding the materials. It Composites for membrane reactors tube-sheet support. The device may be also covers a combinatorial procedure for rapid Applicant: BP Amoco Corporation, USA assembled without integrating the tube-sheet testing of the designs. The composite materials of this invention, support into the hollow-fibre bundle and tubePatent number: WO 00/69007 which include a gas-tight ceramic, a porous sheet combination, and without in situ tubeInventors:T. Klitsner, C.C. Barron, A.E metallic support and an interracial zone between sheet formation. Sylwester, G.N. Ryba, T.E. Zipperian, S. them, eliminate the need for mechanical seals Patent number: WO 00/67885 Kravitz, A. Hecht between two such dissimilar materials. Oxygen Inventors: X. Feng, J. Ivory Publication date: 16 November 2000 ion-conducting, dense ceramic membranes are Publication date: 16 November 2000
Patents
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Membrane TechnologyNo.132
2. Uhlhorn, R.J.R. et aL (1992)J. of Membrane Science 66 259. 3. PCT Patent WO 90/092231, 23 August 1990. 4. Jia, M.-D. etal. (1993) J. of Membrane Science 82 15. 5. Koros, W.J. and Fleming, G.K. (1993) J. of! Membrane Science 83 t. 6. Sakamoto, Y. et al. (t992) J. of Alloys & Compounds 185 191. 7. Sakamoty, Y. et al. (1994) J. o f Alloys & Compounds 205 205. 8. Koresh, J.E. and Softer, A. (1987) Separation Science & Technology 22(2) 973. 9. Iwakawa, H. et al. (1992) Solid State Ionics 11 109.
10. Khainovsky, N.G. and Khairetdinov, E.E (1986) Izv. Akad. Nauk USSR, Ser. Khim. 17 84 (in Russian). 11. RSA Patent 965323, 24 June 1996. 12. Belyakov, V.N. (1992) DSc thesis, Kiev, Russia (in Russian). 13. Clearfield, A.J. (1964) Inorg. Chem. 3 I46. 14. Amftett, C. (1966) Inorganic ion exchangers, Mir, Moscow (in Russian). 15. Clark, J.H. (1995) Chemistry of waste minimization, Blackie Academic & Professional, London, 360. 16. Rodgers, J.D. et al. (1999) Environmental Science & Technology 33 1453. 17. Murphy, O.J. et al. (1992) Water Research 26(4) 443.
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For more information, contact: Professor Vtadimir Unkov, Applied Chemistry, inorganic Porous Media Group, Department of Chemistry, Universityof the Western Cape, Private Bag X17, Bellviile 7535, South Africa. Tel: +27 21 959 2911, Fax: +27 21 959 3055.
This article is based on a paper with the same title which was presented at Business Communications Company's 2000 Eighteenth Annual Membrane Technology/Separations Planning Conference, hem in Newton, Massachusetts during December 2000. For more information, contact: BCC Inc, 25 Van Zant Street, Norwalk, C T 06855, USA. Tel: +I 203 853 4266, Fax: +1 203 853 0348.
r II
IllI II"
I It IV
Hill'
/
Purifying poly-hydroxyalkanoates formed on a porous metallic alloy to provide an Applicant: Metabolix Inc, USA interracial zone identifiable by a gradient of A method is provided for isolating and purifying composition in at least one metallic element poly-hydroxyalkanoates (PHAs) from microbial across the zone between the ceramic membrane or plant biomass which contains PHA. This and the porous support. Processes using Active purifying structures for includes the step of extracting PHA from the composite materials in this way are used for the compact physico-biological filters biomass using at least one solvent, while production of synthesis gas comprising carbon Applicant/Inventor: J.-P. Dautais, France ' simultaneously subjecting the biomass to a monoxide and molecular hydrogen, whereby the The invention concerns active purifying filtration process to remove ceils. In a preferred synthesis gas is flee of harmful and/or inert structures operating in combination, both in embodiment of the method, an aqueous slurry gaseous diluents such as nitrogen. location and percentage, in association with of the biomass is directly extracted by din- Patent number: WO 00/68139 more traditional materials, for forming reactors filtration using an organic solvent. In a preferred Inventors: M.S. Kleefisch, C.A. Udovich, J.G. associated with compact filters. The invention is dia-filtration process, an aqueous slurry of Masin, T.E Kobylinski characterised by the active structures in various microbial cells comprising PHA is recirculated Publication date: 16 November 2000 forms and structures corresponding to spec- through a filtration membrane, where the ific or combined functions, defining in- membrane has a pore size small enough to reject Chelate-forming porous membrane terrupted membranes and active specialised individual cells, or such aggregates of cells, as Applicant: Asai Germanium Research sections for sludge extraction, dispensing and may exist in the slurry. As liquid is progressively Institute, Japan distributing fluids, promoting elimination of removed from the biomass slurry, an organic ! The patent describes a chelate-forming porous biodegradable pollution, denitrification and solvent, preferably a water-miscible solvent that i hollow-fibre membrane, produced by reacting disinfection, in particular. These active also is a solvent for the PHA, is added to the the residues of an epoxy compound, radiationstructures are integrated, as main or biomass slurry at a rate which approximates the grafted onto the surface of a polyethylene porous complementary components, in so-callec rate of liquid permeation through the filter, hollow-fibre membrane, with a compound saturated biological filters, mainly designed for thereby maintaining the volume of the biomass which reacts with the residues. Germanium small purifying plants. slurry. Impurities which are insoluble in water oxide is recovered by collecting germanium oxide Patent number: WO 00/66502 become dissolved in the solvent/water mixture ' in an aqueous solution through the use of the Publication date: 9 November 2000 and pass through the filter membrane, and when hollow-fibre membrane, and eluting the oxide. the organic solvent concentration reaches a Patent number: WO 00/67905 Fuel-cell membranes certain level, the PHA becomes soluble and Inventors: K. Saito, K. Sato, M. Akiba Applicant: Sandia Corporation, USA flows through the filtration membrane and can Publication date: 16 November 2000 The present invention comprises fuel cells, and be 'desolventised' to recover the polymer. porous material for use in the fuel cells. In a Patent number: WO 00/68409 Hollow-fibre membrane devices preferred embodiment, the porous material Inventor: D. Horowitz Applicant: Alberta Research Council, Canada comprises an etched and anodised silicon-based Publication date: 16 November 2000 A hollow-fibre membrane device, adapted for electrode. The invention also discusses methods bore-side feed, includes a split annular disc as a for embossing and moulding the materials. It Composites for membrane reactors tube-sheet support. The device may be also covers a combinatorial procedure for rapid Applicant: BP Amoco Corporation, USA assembled without integrating the tube-sheet testing of the designs. The composite materials of this invention, support into the hollow-fibre bundle and tubePatent number: WO 00/69007 which include a gas-tight ceramic, a porous sheet combination, and without in situ tubeInventors:T. Klitsner, C.C. Barron, A.E metallic support and an interracial zone between sheet formation. Sylwester, G.N. Ryba, T.E. Zipperian, S. them, eliminate the need for mechanical seals Patent number: WO 00/67885 Kravitz, A. Hecht between two such dissimilar materials. Oxygen Inventors: X. Feng, J. Ivory Publication date: 16 November 2000 ion-conducting, dense ceramic membranes are Publication date: 16 November 2000
Patents
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Membrane TechnologyNo.132