| Patents for C01B 23 - Noble gases; Compounds thereof (1,372) |
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| 10/23/2002 | CN1375675A Three-tower system utilizing separated air and method and apparatus for preparing argon by crude argon tower |
| 10/17/2002 | DE10113791A1 Recovery of argon comprises using air decomposition system consisting of high pressure column, low pressure column and middle pressure column |
| 10/03/2002 | US20020141925 Method of purifying and recycling argon |
| 10/02/2002 | CN1091633C Reactive purge for solid electrolyte membrane gas separation |
| 09/26/2002 | US20020134240 Multistage adsorption beds; pressurization; purging; for separation of argon from cryogenic air separation unit |
| 09/26/2002 | DE10113790A1 Drei-Säulen-System zur Tieftemperatur-Luftzerlegung Three-pillar system for cryogenic air separation |
| 09/25/2002 | EP1243882A1 Production of argon using a triple pressure air separation system with an argon column |
| 09/25/2002 | EP1243881A1 Cryogenic triple column air separation system |
| 09/25/2002 | EP1243328A2 Argon/Oxygen selective x-zeolite |
| 09/25/2002 | EP1242165A1 Gas purification system with an integrated hydrogen sorption and filter assembly |
| 09/21/2002 | CA2378017A1 Obtaining argon using a three-column system for the fractionation of air and a crude argon column |
| 09/21/2002 | CA2378009A1 Three-column system for the low-temperature fractionation of air |
| 09/10/2002 | CA2046772C Carbon dioxide production from combustion exhaust gases with nitrogen and argon by-product recovery |
| 09/05/2002 | US20020121193 Pressure swing process utilizes two adsorption beds and continuously promotes the crude feed gas to the bed and simultaneous equalization of pressure in the two beds in top-top-top end and bottom-to-bottom end equalizations |
| 08/27/2002 | US6440196 Purifying a first minority constituent and concentrating the latter in the majority constituent of a gas mixture containing, selective permeation of an initial gas mixture to be treated through a membrane specific to the initial gas |
| 08/20/2002 | US6434973 Process and unit for the production of a fluid enriched in oxygen by cryogenic distillation |
| 08/15/2002 | US20020108495 Argon/oxygen selective x-zeolite |
| 08/14/2002 | CN1363412A Improved pressure variable adsorption for recovery of high purity gases at high recovery rate |
| 08/13/2002 | US6432170 Argon/oxygen selective X-zeolite |
| 08/07/2002 | CN1362607A Argon purifying method |
| 07/31/2002 | CN1361709A Gas purification system with an integrated hydrogen sorption and filter assembly |
| 07/31/2002 | CN1360961A Purifying method of semi-conductor gas |
| 07/17/2002 | EP0837641A4 Coatings for production of hyperpolarized noble gases |
| 07/03/2002 | EP1219339A2 Pressure swing adsorption process and system for recovery of high purity gas |
| 07/03/2002 | EP1219338A2 Argon purification process |
| 06/29/2002 | CA2366266A1 Argon purification process |
| 06/29/2002 | CA2366185A1 Improved pressure swing adsorption process for high recovery of high purity gas |
| 06/26/2002 | CN1086606C Multi-functional catalyst, prepn. method and use thereof |
| 06/25/2002 | US6408849 Recovery and purification of gases used in medical processes |
| 06/20/2002 | US20020074289 Purifying ammonia, nitrogen, helium, and argon via molecular sieves |
| 06/20/2002 | CA2329469A1 Balancing atmospheric kowtow |
| 06/19/2002 | EP1214965A2 Method for purifying gases |
| 06/18/2002 | US6406518 Gas separation process using ceramic membrane and regenerators |
| 06/14/2002 | CA2365027A1 Method for purifying semiconductor gases |
| 06/13/2002 | WO2002045820A1 System and process for gas recovery |
| 06/13/2002 | CA2430812A1 System and process for gas recovery |
| 06/06/2002 | US20020066288 Extraction of helium-3 gas from ilmenite ore utilizing radiant solar energy |
| 05/28/2002 | US6393867 Expansion using a turbine |
| 05/23/2002 | WO2002040984A1 A method for measuring the concentration of nitrogen in argon by means of ion mobility spectrometry |
| 05/23/2002 | WO2002040135A1 Purification of argon |
| 05/23/2002 | CA2427299A1 A method for measuring the concentration of nitrogen in argon by means of ion mobility spectrometry |
| 05/22/2002 | CN1085188C Method for extracting high-purity krypton, xenon from mixed gas containing oxygen, krypton and xenon |
| 05/15/2002 | EP1204473A1 Rejuvenable ambient temperature purifier |
| 05/10/2002 | WO2002036488A1 Method for producing oxygen and fluorine containing compounds of xenon and use thereof |
| 05/07/2002 | CA2250167C Cryogenic accumulator for spin-polarized xenon-129 |
| 05/01/2002 | CN1346788A Process for purifying gas |
| 04/30/2002 | US6379638 Contacting the gaseous mixture at room temperature with an alkaline earth metal, alkaline metal, lanthanide metal, transition metal oxide |
| 04/25/2002 | WO2002033334A2 Method and installation for purifying and recycling helium and use in optical fibre manufacture |
| 04/25/2002 | WO2002032550A1 Gas separating and purifying method and its apparatus |
| 04/18/2002 | US20020045113 Lithographic projection apparatus, device manufacturing method, device manufactured thereby and gas composition |
| 03/28/2002 | US20020035921 Method and apparatus for collecting rare gas |
| 03/27/2002 | EP1190759A2 Method and apparatus for collecting rare gas |
| 03/27/2002 | CN1341476A Gas separating method using ceramic film and reproducing furnace |
| 03/26/2002 | CA2226810C Oxygen selective sorbents |
| 03/14/2002 | WO2002020399A1 Plasma spray with ternary gas mixture |
| 02/27/2002 | EP1181968A2 Gas separation process using ceramic membrane and regenerators |
| 02/27/2002 | CN1079940C Model predictive control method for an air-separation system |
| 02/26/2002 | CA2064615C Process for the purification of the inert gases |
| 02/14/2002 | US20020018728 Peristaltic compressors suitable for relaxation-free compression of polarized gas |
| 02/13/2002 | EP1179717A1 Cryogenic distillation system for air separation |
| 02/13/2002 | CN1335200A Non-evapotranspire getter device |
| 01/22/2002 | CA2220349C Coatings for production of hyperpolarized noble gases |
| 01/16/2002 | EP1172698A2 Lithographic projection apparatus, device manufacturing method, device manufactured thereby and gas composition |
| 01/16/2002 | EP0880394B1 Compounds for the sorption of gases |
| 01/03/2002 | WO2002000379A1 Method and apparatus for producing magnetic rare earth alloy powder, method for producing bonded magnet, method for producing rare earth sintering magnet, and method and apparatus for improving purity of inert gas |
| 01/01/2002 | CA2214557C Process for argon purification |
| 12/20/2001 | US20010052243 Process and unit for the production of a fluid enriched in oxygen by cryogenic distillation |
| 12/13/2001 | WO2001094259A1 Process for recovering helium using an eductor |
| 12/13/2001 | CA2412320A1 Process for recovering helium using an eductor |
| 12/06/2001 | US20010047722 Heat exchanging; mixing |
| 11/21/2001 | CN2460511Y Xenon purification device |
| 11/20/2001 | US6318120 Cryogenic distillation system for air separation |
| 11/14/2001 | CN1074697C Process for producing high-porosity non-evaporable getter materials and materials thus obtained |
| 10/31/2001 | EP1148934A1 Membrane for separation of xenon from oxygen and nitrogen and method of using same |
| 10/10/2001 | EP1143216A1 Process and apparatus for the production of oxygen enriched fluid by cryogenic distillation |
| 10/10/2001 | EP1141548A1 Peristaltic compressors adapted to non-relaxing compression of polarised gas |
| 10/03/2001 | CN1072266C Non-evaporable getter alloys |
| 08/23/2001 | DE10007440A1 Recovering a helium pure fraction from a stream containing at least methane, nitrogen and helium comprises using two-stage purifying process |
| 08/15/2001 | CN1069550C Deoxidation method for inert gas |
| 07/25/2001 | EP0938448B1 Process and apparatus for purifying and recovering xenon and other noble gases used in anaesthetic systems |
| 07/18/2001 | EP1116696A1 Helium recovery method |
| 07/03/2001 | US6253575 Helium recycling for optical fiber manufacturing |
| 06/27/2001 | CN1300930A Distilling process for multi-component fluid and process for production of stream with rich argon by low temperature separating process |
| 06/26/2001 | US6251164 Fluid separation process and separation system therefor |
| 06/20/2001 | EP1108965A1 Process for distillation of multicomponent fluid suitable for production of an argon-enriched stream from a cryogenic air separation process |
| 06/13/2001 | EP0948458B1 Method for purifying a cryogenic fluid by filtration and adsorption |
| 06/13/2001 | EP0921846B1 On-line recovery of xenon from anaesthetic gas |
| 06/05/2001 | US6240744 Using a distillation column having a partitioned section to recover components of different volatilities, minimizing vapor and liquid maldistribution |
| 05/30/2001 | EP1102953A1 Installation producing low voltage electricity integrated in a unit separating gas from air |
| 05/30/2001 | CN1296912A Process for purifying xenon gas with aspirator pump |
| 05/23/2001 | EP1101734A2 Purification of argon |
| 05/23/2001 | EP0907402B1 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 |
| 05/22/2001 | CA2273705C Production of argon from a cryogenic air separation process |
| 04/19/2001 | DE19947450A1 Gas collection equipment used for e.g. moist gases containing xenon from anesthesia comprises pump and storage unit for gas |
| 04/17/2001 | US6217633 An operation of switching between introduction of the exhaust gas to a recovery system and exhaustion of the exhaust gas to exhaust system is carried out depending on the content of impurity contained in exhaust gas for recovery ot noble gas |
| 03/27/2001 | US6206952 Using cadmium exchanged zeolite rho |
| 03/07/2001 | EP1080774A1 Process of removing fluorinated compounds or fluorinated sulphur compounds from a xenon and/or krypton flow by permeation |
| 03/07/2001 | EP1079909A1 Method for purifying a gaseous mixture and concentrating it into a minor constituent, method for detecting said constituent, and installation |
| 03/07/2001 | CN1286133A Fluid separating method and system |
| 03/06/2001 | US6197090 Pressurizing afeed stream comprising mixture of gases having variable permeability to separation membrane by compressor; recirculating part of permeate stream; recovering another part of permeate stream on permeate side of membrane |