公开(公告)号：DE3524890A1

公开(公告)日：1986-01-23

申请号：DE3524890

申请日：1985-07-12

Applicant: AGENCY IND SCIENCE TECHN

Inventor： OKADO HIDEO ,  YAMAZAKI YASUYOSHI ,  MASUMOTO RYUHEI ,  KAWAMURA MITSUTAKA ,  HAGIWARA HIROYUKI

IPC: B01J29/00 ,  C07B61/00 ,  C07C1/00 ,  C07C1/20 ,  C07C11/02 ,  C07C67/00 ,  C07C1/24 ,  C07C11/04 ,  C07C11/06

Abstract: A process for the preparation of low-molecular-weight olefins is characterized in that methanol and/or dimethyl ether together with recirculated hydrocarbons are brought into contact with a zeolite catalyst in order to convert methanol and/or dimethyl ether into low-molecular-weight olefins, and in that all or some of the reaction product, which remains after the resulting ethylene and propylene have been removed from the reaction product, is used as hydrocarbons for recirculation.

公开(公告)号：DE3524890C2

公开(公告)日：1994-03-17

申请号：DE3524890

申请日：1985-07-12

Applicant: AGENCY IND SCIENCE TECHN

Inventor： OKADO HIDEO ,  YAMAZAKI YASUYOSHI ,  MASUMOTO RYUHEI ,  KAWAMURA MITSUTAKA ,  HAGIWARA HIROYUKI

IPC: B01J29/00 ,  C07B61/00 ,  C07C1/00 ,  C07C1/20 ,  C07C11/02 ,  C07C67/00 ,  C07C1/24 ,  C07C11/04 ,  C07C11/06

公开(公告)号：DE3341902A1

公开(公告)日：1984-06-14

申请号：DE3341902

申请日：1983-11-19

Applicant: AGENCY IND SCIENCE TECHN

Inventor： OKADO HIDEO ,  HASHIMOTO KAZUO ,  KAWAMURA KICHINARI ,  YAMAZAKI YASUYOSHI ,  TAKAYA HARUO

IPC: B01J29/00 ,  B01J29/70 ,  B01J29/74 ,  C01B39/04 ,  C01B39/38 ,  C01B39/40 ,  C01B39/48 ,  C07C1/00 ,  C07C1/20 ,  C07C11/02 ,  C07C67/00 ,  C10G3/00 ,  C01B33/28 ,  B01J29/06 ,  C07C1/24

Abstract: A crystalline aluminosilicate having the following empirical formula: xM2O.yM'O.Al2O3.zSiO2.nH2O wherein M is an exchangeable cation selected from the group consisting of alkali metals, hydrogen and mixtures thereof, M' is an alkaline earth metal, x is between 0 and 1.5, y is between 0.2 and 40, z is between 12 and 3000 and n is between 0 and 40 and wherein x+y is 1.2 or more, said aluminosilicate having the X-ray diffraction lines of Table 1 of the specification. The crystalline aluminosilicate material is obtained by providing a reaction mixture containing water, a tetrapropylammonium compound and a source of an alkali metal oxide, an oxide of silicon, an oxide of aluminum and an oxide of an alkaline earth metal and having a composition falling within the following ranges: SiO2/Al2O3 molar ratio: 12-3000 OH-/SiO2 molar ratio: 0.02-10 H2O/SiO2 molar ratio: 1-1000 tetrapropylammonium ion/SiO2 molar ratio: 0.02-2 alkaline earth metal/Al atomic ratio: 0.03-300, and maintaining the mixture at a temperature and for a period of time sufficient to form crystals of the aluminosilicate. The aluminosilicate is useful as catalyst for converting methanol and/or dimethyl ether into lower olefins.

公开(公告)号：DE3518094A1

公开(公告)日：1985-11-28

申请号：DE3518094

申请日：1985-05-21

Applicant: AGENCY IND SCIENCE TECHN

Inventor： OKADO HIDEO ,  SHOJI HIROSHI ,  TAKAYA HARUO ,  KAWAMURA KICHINARI ,  YAMAZAKI YASUYOSHI

IPC: B01J29/00 ,  B01J29/40 ,  C01B39/00 ,  C01B39/04 ,  C07C1/00 ,  C07C1/20 ,  C07C11/02 ,  C07C67/00 ,  C01B33/26 ,  B01J29/28 ,  C07C1/24

Abstract: A zeolite material obtained by modifying a crystalline aluminosilicate having the following empirical formula: xM2O.yM'O.Al2O3.zSiO2.nH2O wherein M is an exchangeable cation selected from the group consisting of alkali metals, hydrogen and mixtures thereof, M' is an alkaline earth metal, x is between 0 and 1.5, y is between 0.2 and 40, z is between 50 and 3000 and n is between 0 and 40 and wherein x+y is at least 1.2, with an alkaline earth metal compound. The modifying may be by impregnation or by mere mixing. The zeolite material is useful as catalyst for converting methanol and/or dimethyl ether into lower olefins.

公开(公告)号：JPH0193545A

公开(公告)日：1989-04-12

申请号：JP813088

申请日：1988-01-18

Applicant: AGENCY IND SCIENCE TECHN

Inventor： OKADO HIDEO ,  HASHIMOTO KAZUO ,  KAWAMURA YOSHINARI ,  YAMAZAKI YASUYOSHI ,  TAKATANI HARUO

IPC: B01J29/70 ,  C07B61/00 ,  C07C1/00 ,  C07C1/20 ,  C07C11/02 ,  C07C67/00

Abstract: PURPOSE:To obtain the titled compound readily and in high selectivity, by using a novel crystalline aluminosilicate zeolite containing an alkaline earth metal having stable activity as a catalyst and bringing methanol into contact with the catalyst under a specific reaction condition in a gas phase. CONSTITUTION:Methanol and/or dimethyl ether in a gas phase is brought into contact with an crystalline aluminosilicate zeolite catalyst containing an alkaline earth metal which has 5-6Angstrom pore diameter, a composition shown by the formula (M is alkali metal and/or H; M' is alkaline earth metal, preferably Ca; a=0-1.5; b=0.2-40; with the proviso that a+b>1; c=12-3,000: n:0-40), X-ray diffraction figure shown by the table and is produced by previously adding an alkaline earth metallic salt to a crystal producing raw material in the production of the crystal, at 0.1-20hr weight time space velocity at 300-600 deg.C under 0.1-100atm. total pressure to give the aimed compound, especially ethylene or propylene.