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1. 发明专利

JPH07139876A REFINING METHOD FOR KRYPTON AND XENON 失效
公开(公告)号：JPH07139876A
公开(公告)日：1995-06-02
申请号：JP28958793
申请日：1993-11-18
申请人： NIPPON OXYGEN CO LTD , CHIBA SANSO CENTER KK
发明人： URATA SATOSHI , OCHI KAZUYOSHI
IPC分类号： C01B23/00 , F25J3/02 , F25J3/04
摘要： PURPOSE:To provide a method for efficiently refining krypton and xenon continuously in a high purity by a simple apparatus structure. CONSTITUTION:A method for refining xenon and krypton comprises a concentrating step of concentrating the xenon and krypton by introducing liquefied oxygen containing the krypton and the xenon to a concentrating tower 3, a catalytic refining step by using a catalytic reaction cylinder 15 of copper and chromium composite catalyst to react hydrocarbons with oxygen to be removed after bottom liquid of the tower is vaporized and an adsorber 18 for removing carbon dioxide and water of a reactive product, and a catalytic refined gas-circulating step for branching the gas after discharging from the adsorber, introducing the gas in one branch to the bottom of the tower, and diluting the hydrocarbons in the bottom liquid. Thus, the method further comprises a control step of an input of gas containing the krypton and the xenon after the catalytic reaction step for reintroducing it to a lower part of the tower, a step of removing the oxygen by again liquefying the other, introducing and refining it by a deoxygenating tower 23, and a step of separating the xenon and the krypton by refining the bottom liquid of the deoxygenating tower by a separating tower 28.

2. 发明专利

JPS61110872A Manufacture of nitrogen 失效
标题翻译：氮的制造
公开(公告)号：JPS61110872A
公开(公告)日：1986-05-29
申请号：JP23212684
申请日：1984-11-02
申请人： Nippon Oxygen Co Ltd
发明人： OKADA HIDETAKE , URATA SATOSHI
IPC分类号： F25J3/04
CPC分类号： F25J3/04284 , F25J3/04278 , F25J3/04351 , F25J3/044 , F25J3/04642 , F25J2200/50 , F25J2200/72 , F25J2200/74 , F25J2205/24 , F25J2215/30 , F25J2215/32 , F25J2250/20 , F25J2270/12 , F25J2270/40 , F25J2270/58

3. 发明专利

JPH09303699A LEAKING GAS BOMB CONTAINER BAG AND LEAKAGE GAS RECOVERING DEVICE USING THE BOMB CONTAINER BAG 失效
公开(公告)号：JPH09303699A
公开(公告)日：1997-11-28
申请号：JP12141296
申请日：1996-05-16
申请人： NIPPON OXYGEN CO LTD , NIPPON TANSAN GAS CO LTD
发明人： URATA SATOSHI , IGUCHI MITSUHIRO , INADA TETSUKAZU , SHIRANE YOSHIKAZU , KOJIMA MITSUO , TAKAHASHI HITOSHI
IPC分类号： F17C13/12
摘要： PROBLEM TO BE SOLVED: To transport a leaking gas bomb in easily contained while ensuring elevated airtightness and safety and not emitting leakage gas from the gas bomb to the atmosphere, and easily and smoothly lead leakage gas into a defusing device. SOLUTION: A bomb container bag 3 and a first and second gas recovering bags 5, 5 are respectively formed of airtight material. An airtight fastener 8 is fitted to the opening of the bomb container bag 3 through which a gas bomb 2 is inserted into or extracted from the bag 3. Diluted-gas bombs 13 are attached to the respective bomb container bag 3 and gas recovering bag 5. A diluted- and forcibly forced-gas induction opening 3a and a leakage gas discharge opening 3b are provided to the bomb container bag 3. Leakage gas induction openings 5a and leakage gas discharge openings 5b are provided to the respective gas recovering bags 5.

4. 发明专利

JPH07133981A METHOD OF REFINING KRYPTON AND XENON 失效
公开(公告)号：JPH07133981A
公开(公告)日：1995-05-23
申请号：JP27992993
申请日：1993-11-09
申请人： NIPPON OXYGEN CO LTD
发明人： URATA SATOSHI , HONDA HIDEYUKI , TAMURA MASAHIRO
IPC分类号： F25J3/04
摘要： PURPOSE:To effectually separate krypton and xenon by eliminating a catalyst adsorption process next to a deoxygenation process of taking out and removing oxygen gas from a tower top where water and carbon dioxide produced in a catalyst reaction process are introduced after gas after adsorption and removal is cooled. CONSTITUTION:Liquefied oxygen including krypton and xenon taken out from an air liquefaction/separation apparatus is introduced into a concentration tower 2 to obtain a tower bottom solution yielded by concentrating the krypton and xenon. The tower bottom solution is vaporized and is introduced into a catalyst reaction cylinder 17 to bring involved hydrocarbons and oxygen to a reaction (catalyst reaction process), and gas discharged from the reaction cylinder 17 is introduced into an adsorber 19 to adsorb and remove water and carbon dioxide produced in the catalyst reaction (adsorption tower process). The gas after adsorption processing is again cooled and is introduced into a deoxygenation tower 22 having a theoretical stage number of 5 or more where it is refined with a gas/liquid ratio L/V of a concentration part being 0.1 or more and oxygen gas is taken out and removed from a tower top (deoxygenation process), and further a tower bottom solution is introduced into a separation tower 27 to separate xenon are krypton.

5. 发明专利

JPH0447234B2 失效
公开(公告)号：JPH0447234B2
公开(公告)日：1992-08-03
申请号：JP23212684
申请日：1984-11-02
申请人： NIPPON OXYGEN CO LTD
发明人： OKADA HIDETAKE , URATA SATOSHI
IPC分类号： F25J3/04

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