2.
    发明专利
    未知

    公开(公告)号:DE69401036T2

    公开(公告)日:1997-04-10

    申请号:DE69401036

    申请日:1994-06-23

    Applicant: TOSOH CORP

    Abstract: A method for removing nitrogen oxides from an oxygen-rich exhaust gas containing nitrogen oxides and hydrocarbons comprising bringing the oxygen-rich exhaust gas into contact with a catalyst comprising (1)(i) a zeolite containing an apatite compound and having an SiO2/Al2O3 molar ratio of at least 15 and (ii) at least one active metal or (2)(ii) a zeolite containing an apatite compound and having an SiO2/Al2O3 molar ratio of at least 15, (ii) an alkaline earth metal and (iii) at least one active metal.

    3.
    发明专利
    未知

    公开(公告)号:DE69401036D1

    公开(公告)日:1997-01-16

    申请号:DE69401036

    申请日:1994-06-23

    Applicant: TOSOH CORP

    Abstract: A method for removing nitrogen oxides from an oxygen-rich exhaust gas containing nitrogen oxides and hydrocarbons comprising bringing the oxygen-rich exhaust gas into contact with a catalyst comprising (1)(i) a zeolite containing an apatite compound and having an SiO2/Al2O3 molar ratio of at least 15 and (ii) at least one active metal or (2)(ii) a zeolite containing an apatite compound and having an SiO2/Al2O3 molar ratio of at least 15, (ii) an alkaline earth metal and (iii) at least one active metal.

    METHOD FOR PRODUCING AEI ZEOLITE
    7.
    发明专利

    公开(公告)号:MY184911A

    公开(公告)日:2021-04-30

    申请号:MYPI2018000189

    申请日:2016-08-09

    Applicant: TOSOH CORP

    Abstract: Provided is a production method by which an AEI zeolite is obtained without inducing a structural transformation in a crystalline aluminosilicate having a Y-structure and without using fluorine or phosphorus, the method including a crystallization step of crystallizing a composition containing an alumina source, a silica source, a structure directing agent, a sodium source, and water, a weight proportion of crystalline aluminosilicate relative to a total weight of the alumina source and the silica source being from 0 wt.% to 1 0 wt.%, and the crystallization step satisfying at least one of the following conditions: a molar ratio of hydroxide ion to silica in the composition is 0.45 or greater, the composition contains a cation represented by (CHJ)JRN+ (R represents an alkyl group having from l to 4 carbons, and the alkyl group may contain at least one substituent), and the crystallization time is 80 hours or longer.

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