| Patents for C01B 23 - Noble gases; Compounds thereof (1,372) |
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| 10/20/1998 | US5824617 Porous and nonporous substrates and a polycrystalline layerof zeolit; immersing substrate into synthesis mixture,autoclaving, washing; separation of dyes from alcohol and oligomers from hexane |
| 10/07/1998 | EP0869195A1 Non-evaporable getter alloys |
| 10/07/1998 | CN1040069C Purification of fluids by temp. change adsorption |
| 09/22/1998 | US5809801 Cryogenic accumulator for spin-polarized xenon-129 |
| 09/22/1998 | CA2042852C Process for removing oxygen from crude argon |
| 09/09/1998 | EP0863375A1 Process for separating Krypton and Xenon from fluorine and/or chlorine containing impurities |
| 09/09/1998 | CN1192423A Method for obtg. Kr and Xe |
| 09/02/1998 | CN1192128A Coatings for production of hyperpolarized noble gases |
| 08/25/1998 | CA2156146C Model predictive control method for an air-separation system |
| 08/19/1998 | CN1190946A Method for eliminating impurities contained in a gas compound |
| 08/18/1998 | CA1340001C Process for separating components of a gas stream |
| 08/11/1998 | US5792523 Concentrating rare gas stream by catalytically reducing contaminants |
| 08/04/1998 | US5787730 Cryogenic |
| 07/28/1998 | US5784898 Process and device for the preparation of a cry ogenic fluid in the high purity liquid state |
| 07/22/1998 | EP0853976A1 Oxygen selective sorbents |
| 07/21/1998 | US5783162 Argon purification process |
| 07/02/1998 | WO1998028226A1 Method for purifying a cryogenic fluid by filtration and adsorption |
| 07/02/1998 | CA2275962A1 Method for purifying a cryogenic fluid by filtration and adsorption |
| 06/17/1998 | EP0847794A1 Process and installation for purifying a gas |
| 06/09/1998 | US5763347 In-situ crystallized zeolite containing composition (LAI-ISC) |
| 05/20/1998 | CN1182052A Purification of inert fluid in liquid state with respect to its impurities H2 and/or Co |
| 05/20/1998 | CN1181991A O2/CO removal from inert gas by adsorption on porous metal oxide |
| 05/14/1998 | DE19646791A1 Xenon-enrichment apparatus |
| 05/07/1998 | WO1998018718A1 Process and apparatus for purifying and recovering xenon and other noble gases used in anaesthetic systems |
| 04/29/1998 | EP0837641A1 Coatings for production of hyperpolarized noble gases |
| 04/28/1998 | US5743944 Fluid clathrate system for continuous removal of heavy noble gases from mixtures of lighter gases |
| 04/16/1998 | DE19641643A1 Production of pure xenon in an air separation plant |
| 04/08/1998 | EP0834950A2 Planar solid electrolyte cell stack working as oxygen pump, with offset seals and biasing electrodes |
| 04/01/1998 | EP0832678A2 Inert gas purification |
| 03/25/1998 | CN1176941A Helium recovery for optical fiber mfg. |
| 03/24/1998 | CA1339771C Gas separation |
| 03/18/1998 | EP0829292A1 Removal of H2 and/or CO impurities from an inert fluidum in liquid state |
| 03/10/1998 | CA1339702C Apparatus and method for the removal of impurity gases from inert gases and the ensurance of the extremely low levels of hydrogen |
| 03/05/1998 | WO1998008583A1 On-line recovery of xenon from anaesthetic gas |
| 03/05/1998 | DE19635002A1 Verfahren zur Online-Rückgewinnung von Xenon aus Narkosegas A method for on-line recovery of anesthetic gas xenon from |
| 03/04/1998 | EP0826629A2 Recovery of noble gases |
| 01/28/1998 | EP0820963A1 Method for recovering helium from an optical fibre manufacturing process |
| 01/28/1998 | EP0820960A1 Removal of O2 and/or CO from inert gas using adsorption on porous metal oxide |
| 01/28/1998 | CN1171534A Process and device for preparation of cryogenic fluid in high purity liquid state |
| 01/15/1998 | WO1997028884A3 Compounds for the sorption of gases |
| 01/13/1998 | US5707425 Helium recovery from higher helium content streams |
| 01/13/1998 | US5706674 Argon recovery from silicon crystal furnace |
| 12/31/1997 | WO1997049960A1 Helium recycling for optical fiber manufacturing |
| 12/31/1997 | WO1997049479A1 Method of removing, from a stream of gas, fluorinated compounds which contribute to destruction of the ozone layer and/or changes in climate, and use of the method |
| 12/31/1997 | CA2221691A1 Helium recycling for optical fiber manufacturing |
| 12/17/1997 | CN1168192A Separation of gases |
| 12/11/1997 | WO1997046315A1 Method of separating and selectively removing hydrogen contaminant from process streams |
| 12/11/1997 | CA2256734A1 Method of separating and selectively removing hydrogen contaminant from process streams |
| 12/10/1997 | EP0811576A2 Process and apparatus for the preparation of a cryogenic liquid fluid of high purity |
| 12/02/1997 | US5693302 Reacting gas with oxygen and a catalyst comprising gold or palladium particles on titanium dioxide support, wherein carbon monoxide and hydrogen impurities react with oxygen to form carbon dioxide and water |
| 11/21/1997 | CA2205700A1 Helium recovery from higher helium content streams |
| 11/20/1997 | WO1997043212A1 Method for eliminating impurities contained in a gas compound |
| 11/19/1997 | EP0807599A1 Process for the removal of impurities from gas compositions |
| 11/11/1997 | US5685172 Process and device for the preparation of a flow which is substantially purified with respect to at least one of the impurities oxygen and carbon monoxide |
| 11/05/1997 | EP0804795A1 Separation of gases |
| 10/22/1997 | EP0802160A1 Process and apparatus for the supply of ultra-pure helium |
| 10/19/1997 | CA2203090A1 Procedure and installation for supplying ultra-pure helium |
| 10/14/1997 | US5676736 Process for introducing a filling gas into an enclosure and installation for employing same |
| 10/09/1997 | WO1997037177A1 Cryogenic accumulator for spin-polarized xenon-129 |
| 09/24/1997 | EP0796818A1 Krypton gas mixture for insulating windows |
| 09/04/1997 | DE19708025A1 Recovery and purification of argon from silicon crystal growing oven |
| 09/03/1997 | EP0792680A1 Process and apparatus for removing carbon monoxide from a gas stream |
| 09/02/1997 | US5662873 Catalytic oxidation of hydrogen and/or carbon monoxide |
| 08/27/1997 | CN1157752A Reactive purge for solid electrolyte membrane gas separation |
| 08/14/1997 | WO1997028884A2 Compounds for the sorption of gases |
| 08/13/1997 | EP0788398A1 Filter material and process for producing no 2-free gases |
| 07/08/1997 | US5644934 Cooling compressed air, ractifying to form liquid oxygen and gaseous nitrogen, vaporizing liquid product fraction, condensing, separating crude argon vapors and oxygen rich liquid, liquefying crude argon |
| 06/11/1997 | EP0778069A1 Reactive purge for solid electrolyte membrane gas separation |
| 05/29/1997 | WO1997019454A1 Separation of gases |
| 05/29/1997 | CA2206453A1 Separation of gases |
| 05/27/1997 | US5632803 Pressure swing adsorption |
| 05/21/1997 | CN1150056A Process and device for preparation of flow which is ubstantially purified with respect to at least one of impurities oxygen and carbon monoxide |
| 05/13/1997 | US5628194 Process for pumping gaseous helium at cryogenic temperatures by a positive displacement pump |
| 05/09/1997 | WO1997016687A1 Method and apparatus for producing liquid nitrogen |
| 05/02/1997 | EP0769983A1 An in-situ crystallized zeolite containing composition (lai-isc) |
| 04/08/1997 | US5617860 Method and system for producing polarized 129 Xe gas |
| 04/03/1997 | WO1997011768A1 Low temperature inert gas purifier |
| 03/18/1997 | US5612103 Coatings for production of hyperpolarized noble gases |
| 03/12/1997 | EP0761596A1 Argon purification process and unit |
| 03/04/1997 | US5607572 Removal of oxygen from inert gases |
| 03/04/1997 | CA2049806C Modified carbon molecular sieves for gas separation |
| 02/22/1997 | CA2183832A1 Enhanced helium recovery |
| 02/20/1997 | WO1997005944A1 Oxygen sorbent and process for producing it |
| 02/11/1997 | US5601634 Temperature swing adsorption |
| 02/06/1997 | WO1997003745A1 Single gas purifier vessel and heat exchanger |
| 02/06/1997 | DE19528783A1 Sorbent für Sauerstoff und Verfahren zu seiner Herstellung und Regenerierung Sorbent for oxygen and method for its preparation and regeneration |
| 01/14/1997 | US5592833 Process and apparatus for the recovery of pure argon |
| 01/07/1997 | US5590544 Process and apparatus for recovery of pure argon |
| 01/02/1997 | EP0750933A1 Process and apparatus for the preparation of a substantially purified flux of at least one of the impurities chosen between oxygen and carbon monoxide |
| 12/31/1996 | CA2180235A1 Process and device for the preparation of a flow which is substantially purified with respect to at least one of the impurities oxygen and carbon monoxide |
| 12/19/1996 | WO1996040585A1 METHOD AND SYSTEM FOR PRODUCING POLARIZED 129Xe GAS |
| 12/19/1996 | WO1996039912A1 Coatings for production of hyperpolarized noble gases |
| 12/17/1996 | US5584194 Extracting portions of other gases in air, compressing nitrogen-rich mixture, expanding to lower pressure, cooling to condense portion of nitrogen, separating liquid nitrogen from remaning gas, extracting for storage or use |
| 12/11/1996 | CN1137486A Process for removal of impurity contained in composite gas |
| 11/13/1996 | CN1135597A Method for recovering and purifying argon from low-temp. air separating device and apparatus thereof |
| 11/05/1996 | US5570582 Heat exchanging, liquefaction, cryogenics and purification |
| 10/30/1996 | EP0739648A1 Adsorptive separation of helium |
| 10/09/1996 | CN1132655A Process for producing high-porosity non-evaporable getter materials and materials thus obtained |
| 10/08/1996 | US5562809 Method for making hydrogen saturated metal compounds |
| 09/25/1996 | EP0733589A2 Process and apparatus for recovery and purification of argon from a cryogenic air separation unit |