公开(公告)号：US20190337813A1

公开(公告)日：2019-11-07

申请号：US16509642

申请日：2019-07-12

申请人： TOSOH CORPORATION

发明人： Tomoya ISHIKAWA ,  Hidekazu AOYAMA ,  Takayoshi MISHIMA

IPC分类号： C01B39/48 ,  C01B39/04

摘要： 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 aunt, 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 10 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 (CH3)3RN+ (R represents an alkyl group having from 1 to 4 carbons, and the alkyl group may contain at least one substituent), and the crystallization time is 80 hours or longer.

公开(公告)号：US20190105639A1

公开(公告)日：2019-04-11

申请号：US16155372

申请日：2018-10-09

申请人： TOSOH CORPORATION

发明人： Seiji MAEHAMA ,  Hidekazu AOYAMA ,  Satoshi NAKAMURA ,  Yusuke NARAKI

IPC分类号： B01J29/72 ,  C01B39/46

摘要： Provided is a metal-containing CHA-type zeolite in which a ratio of a maximum intensity of an absorption peak in a range of 3685 cm−1 or more and 3750 cm−1 or less to a maximum intensity of an absorption peak in a range of 1800 cm−1 or more and 1930 cm−1 or less is less than 1.5 in an IR spectrum. A method for producing the metal-containing CHA-type zeolite includes a metal incorporation step of mixing a metal source and a CHA-type zeolite in which a ratio of a maximum intensity of an absorption peak in a range of 3665 cm−1 or more and 3750 cm−1 or less to a maximum intensity of an absorption peak in a range of 1800 cm−1 or more and 1930 cm−1 or less is less than 1.5 in an IR spectrum.

公开(公告)号：US20190143309A1

公开(公告)日：2019-05-16

申请号：US16302964

申请日：2017-05-23

申请人： TOSOH CORPORATION

发明人： Seiji MAEHAMA ,  Hidekazu AOYAMA ,  Satoshi NAKAMURA

IPC分类号： B01J29/70 ,  C01B39/48

摘要： A CHA-type zeolite has a molar ratio of silica to alumina of 10.0 or more and less than 20.0 and a molar ratio of silanol groups to silicon of 0.15×10−2 or more and 0.50×10−2 or less, a molar ratio of silica to alumina of 20.0 or more and 35.0 or less and a molar ratio of silanol groups to silicon of 0.15×10−2 or more and 1.10×10−2 or less, a molar ratio of silica to alumina of more than 35.0 and 45.0 or less and a molar ratio of silanol groups to silicon of 0.15×10−2 or more and 1.65×10−2 or less, or a molar ratio of silica to alumina of more than 45.0 and 55.0 or less and a molar ratio of silanol groups to silicon of 0.15×10−2 or more and 1.80×10−2 or less.

公开(公告)号：US20230271843A1

公开(公告)日：2023-08-31

申请号：US18019969

申请日：2021-08-06

申请人： TOSOH CORPORATION

发明人： Ryo MITSUHASHI ,  Takuya KAWAMOTO ,  Hidekazu AOYAMA ,  Ning CHEN

IPC分类号： C01B39/48 ,  B01J37/10 ,  B01J29/76 ,  C01B21/02

CPC分类号： C01B39/48 ,  B01J37/10 ,  B01J29/763 ,  C01B21/02 ,  C01P2002/82 ,  C01P2002/86

摘要： Provided is at least one of an improvement in the thermal stability of a CHA-type zeolite, which is achieved by a method different from that of the related art for improving thermal stability; a method for producing a CHA-type zeolite that improves thermal stability; and such a CHA-type zeolite. Provided is a CHA-type zeolite having a 1H-MAS-NMR spectrum and an IR spectrum in which, preferably, in the 1H-MAS-NMR spectrum, a ratio of an integrated intensity of a maximum peak having a peak top at a chemical shift of 3.0 to 3.5 ppm to an integrated intensity of a maximum peak having a peak top at a chemical shift of 4.0 to 4.5 ppm is greater than 0.12 and 0.5 or less, and, in the IR spectrum, a ratio of a maximum peak height of an absorption peak having a peak top at a wavenumber of 3630 cm−1 or greater and 3650 cm−1 or less to a maximum peak height of an absorption peak having a peak top at a wavenumber of 3590 cm−1 or greater and 3610 cm−1 or less is 0.40 or greater and 1.0 or less.

公开(公告)号：US20180230017A1

公开(公告)日：2018-08-16

申请号：US15751036

申请日：2016-08-09

申请人： TOSOH CORPORATION

发明人： Tomoya ISHIKAWA ,  Hidekazu AOYAMA ,  Mitsuaki YOSHIMITSU ,  Seiji MAEHAMA ,  Takayoshi MISHIMA ,  Yasuyuki TAKAMITSU

IPC分类号： C01B39/48 ,  C01B39/04

摘要： 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 10 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 (CH3)3RN+ (R represents an alkyl group having from 1 to 4 carbons, and the alkyl group may contain at least one substituent), and the crystallization time is 80 hours or longer.

公开(公告)号：US20180237307A1

公开(公告)日：2018-08-23

申请号：US15899958

申请日：2018-02-20

申请人： TOSOH CORPORATION

发明人： Keita NAKAO ,  Ko ARIGA ,  Hidekazu AOYAMA ,  Satoshi NAKAMURA

IPC分类号： C01B39/48 ,  B01J29/70 ,  B01J37/00 ,  B01D53/94

CPC分类号： C01B39/48 ,  B01D53/9418 ,  B01D53/9422 ,  B01D2255/20761 ,  B01D2255/50 ,  B01J29/7015 ,  B01J29/763 ,  B01J35/0013 ,  B01J35/002 ,  B01J35/023 ,  B01J35/026 ,  B01J35/04 ,  B01J37/0009 ,  B01J37/0246 ,  B01J2229/186 ,  C01P2002/60 ,  C01P2002/82 ,  C01P2002/86 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2006/37 ,  F01N3/2066 ,  F01N2610/02

摘要： A process of manufacturing a chabazite-type zeolite is provided having high heat resistance without having a large crystal size. A catalyst is also provided that contains such a chabazite-type zeolite and exhibits high nitrogen oxide reduction properties, and in particular high nitrogen oxide reduction properties in low temperatures below 200° C., even after exposure to high temperature and high humidity. A chabazite-type zeolite is provided having a silica to alumina molar ratio of no less than 15, a silanol group to silicon molar ratio of no more than 1.6×10−2, an average crystal size of 0.5 μm to less than 1.5 μm, and a ratio of 50%-volume particle size to 10%-volume particle size of no more than 3.2. The chabazite-type zeolite preferably contains at least one of copper and iron.