公开(公告)号：CA1227488A

公开(公告)日：1987-09-29

申请号：CA491031

申请日：1985-09-18

Applicant: MITSUI TOATSU CHEMICALS

Inventor： ASANO SHIRO ,  KITAGAWA JUN

IPC: C07D213/82 ,  B01J25/00 ,  C07B31/00 ,  C07B43/06 ,  C07B61/00 ,  C07C67/00 ,  C07C231/00 ,  C07C231/06 ,  C07C231/08 ,  C07C233/09 ,  C07D213/81 ,  C07D233/00 ,  C07C102/08 ,  C07C103/133

Abstract: Title of the Invention: Hydration Process of Nitrite Compound Disclosed herein is a process for the hydration of a nitrite compound. Owing to the use of a Raney copper catalyst having an iron content of 0.7 wt.% or less based on the copper component in a suspended state, the process allows the catalyst to retain high activity and facilitates the separation of the catalyst and liquid reaction mixture by sedimentation and/or filtration.

公开(公告)号：ZA8506934B

公开(公告)日：1986-04-30

申请号：ZA8506934

申请日：1985-09-10

Applicant: MITSUI TOATSU CHEMICALS

Inventor： ASANO SHIRO ,  KITAGAWA JUN

IPC: C07D213/82 ,  B01J25/00 ,  C07B31/00 ,  C07B43/06 ,  C07B61/00 ,  C07C67/00 ,  C07C231/00 ,  C07C231/06 ,  C07C233/09 ,  C07D213/81 ,  C07D233/00 ,  C07C

CPC classification number: C07D213/81

公开(公告)号：DE69109746T2

公开(公告)日：1995-10-26

申请号：DE69109746

申请日：1991-06-05

Applicant: MITSUI TOATSU CHEMICALS

Inventor： HONDA TADATOSHI ,  HORIUCHI NOBUHIKO ,  MURAKAMI MASAMI ,  NAGAYAMA TOKIO ,  KITAGAWA JUN ,  KAWAHARA KAZUNORI

IPC: B01J23/88 ,  C07C45/35 ,  C07C45/37 ,  C07C45/39 ,  C07C47/22

Abstract: A method for preparing acrolein or methacrolein comprises subjecting propylene, secondary propanol, isobutylene or tertiary butanol to gas phase catalytic oxidation with molecular oxygen in the presence of a catalyst represented by the following general formula (I): wherein X represents at least one element selected from the group consisting of Ni and Co; Y represents at least one element selected from the group consisting of K, Rb, Cs and Tl; and Z represents at least one element selected from the group consisting of Be, Mg, Ca, Sr, Ba, Ce, Ti, Zr, Nb, Cr, W, Mn, Cu, Ag, Zn, Cd, B, Al, Si, Ge, Sn, Pb, P, As, Sb, S, Se and Te; a, b, c, d, e, f and g each represents an atomic ratio of the corresponding element and when a is assumed to be 12, b = 0.1 SIMILAR 10, c = 0.1 SIMILAR 20, d = 2 SIMILAR 20, e = 0.01 SIMILAR 2, f = 0 SIMILAR 4 and g represents the number of oxygen atoms required for satisfying the valency requirement of the constituent elements, wherein the catalyst used is prepared by separately preparing solutions each of which contains the starting compound for the foregoing catalyst components, mixing these solutions within a short period of time, spray-drying the resulting mixture immediately after the mixing and then calcining the dried powder. A catalyst which further comprises 5 to 15% by weight of silica in addition to the foregoing composition is also used in the method. End products can be obtained in high conversion and selectivity through the use of the foregoing catalyst. Moreover, the catalyst is excellent in stability and has good reproducibility.

公开(公告)号：DE69109746D1

公开(公告)日：1995-06-22

申请号：DE69109746

申请日：1991-06-05

Applicant: MITSUI TOATSU CHEMICALS

Inventor： HONDA TADATOSHI ,  HORIUCHI NOBUHIKO ,  MURAKAMI MASAMI ,  NAGAYAMA TOKIO ,  KITAGAWA JUN ,  KAWAHARA KAZUNORI

IPC: B01J23/88 ,  C07C45/35 ,  C07C45/37 ,  C07C45/39 ,  C07C47/22

Abstract: A method for preparing acrolein or methacrolein comprises subjecting propylene, secondary propanol, isobutylene or tertiary butanol to gas phase catalytic oxidation with molecular oxygen in the presence of a catalyst represented by the following general formula (I): wherein X represents at least one element selected from the group consisting of Ni and Co; Y represents at least one element selected from the group consisting of K, Rb, Cs and Tl; and Z represents at least one element selected from the group consisting of Be, Mg, Ca, Sr, Ba, Ce, Ti, Zr, Nb, Cr, W, Mn, Cu, Ag, Zn, Cd, B, Al, Si, Ge, Sn, Pb, P, As, Sb, S, Se and Te; a, b, c, d, e, f and g each represents an atomic ratio of the corresponding element and when a is assumed to be 12, b = 0.1 SIMILAR 10, c = 0.1 SIMILAR 20, d = 2 SIMILAR 20, e = 0.01 SIMILAR 2, f = 0 SIMILAR 4 and g represents the number of oxygen atoms required for satisfying the valency requirement of the constituent elements, wherein the catalyst used is prepared by separately preparing solutions each of which contains the starting compound for the foregoing catalyst components, mixing these solutions within a short period of time, spray-drying the resulting mixture immediately after the mixing and then calcining the dried powder. A catalyst which further comprises 5 to 15% by weight of silica in addition to the foregoing composition is also used in the method. End products can be obtained in high conversion and selectivity through the use of the foregoing catalyst. Moreover, the catalyst is excellent in stability and has good reproducibility.

公开(公告)号：DE69006467T2

公开(公告)日：1994-05-26

申请号：DE69006467

申请日：1990-11-14

Applicant: MITSUI TOATSU CHEMICALS

Inventor： YOSHIKAWA YUKIHIRO ,  HIHARA TOORU ,  YAMADA KUNIHIRO ,  TAKENAKA SHINJI ,  KAWAHARA KAZUNORI ,  KITAGAWA JUN

IPC: B01J23/92 ,  B01J38/68 ,  C01B7/04

Abstract: The catalytic activity of a chromium oxide-based catalyst used in the production of chlorine by oxidation of hydrogen chloride gas with an oxygen-containing gas is regenerated by impregnating it with an aqueous solution of chromic acid anhydride or of a chromium salt and then calcining the catalyst at a temperature not higher than 800 DEG C.

公开(公告)号：DE69119035T2

公开(公告)日：1996-10-02

申请号：DE69119035

申请日：1991-11-14

Applicant: MITSUI TOATSU CHEMICALS

Inventor： HONDA TADATOSHI ,  HORIUCHI NOBUNHIKO ,  KITAGAWA JUN ,  MURAKAMI MASAMI ,  KAWAHARA KAZUNORI ,  IO HIROFUMI

IPC: B01J27/199 ,  B01J27/24 ,  C07C51/25 ,  F16G5/16

Abstract: A composite oxide catalyst represented by the general formula: Mo-V-P-X-Y (wherein X represents at least one element selected from the group consisting of Sb, Cu, Co, Bi and As; Y represents at least one element selected from the group consisting of K, Rb, Cs and Tl) and a method for preparing methacrylic acid through gas phase catalytic oxidation of methacrolein with molecular oxygen in the presence of the foregoing catalyst are herein disclosed. The catalyst exhibits excellent catalytic activity, selectivity to methacrylic acid, catalytic stability and lifetime.

公开(公告)号：DE3579280D1

公开(公告)日：1990-09-27

申请号：DE3579280

申请日：1985-09-19

Applicant: MITSUI TOATSU CHEMICALS

Inventor： ASANO SHIRO ,  KITAGAWA JUN

IPC: C07D213/82 ,  B01J25/00 ,  C07B31/00 ,  C07B43/06 ,  C07B61/00 ,  C07C67/00 ,  C07C231/00 ,  C07C231/06 ,  C07C231/08 ,  C07C233/09 ,  C07D213/81 ,  C07D233/00

Abstract: Disclosed herein is a process for the hydration of a nitrile compound. Owing to the use of a Raney copper catalyst having an iron content of 0.7 wt. % or less based on the copper component in a suspended state, the process allows the catalyst to retain high activity and facilitates the separation of the catalyst and liquid reaction mixture by sedimentalion and/or filtration. In an example, a catalyst with 0.1 iron achieved 67% conversion of acrylonitrile to acrylamide, whereas a catalyst with 1.56% iron achieved only 40%.

公开(公告)号：AU561379B2

公开(公告)日：1987-05-07

申请号：AU4730985

申请日：1985-09-10

Applicant: MITSUI TOATSU CHEMICALS

Inventor： ASANO SHIRO ,  KITAGAWA JUN

IPC: C07D213/82 ,  B01J25/00 ,  C07B31/00 ,  C07B43/06 ,  C07B61/00 ,  C07C67/00 ,  C07C231/00 ,  C07C231/06 ,  C07C231/08 ,  C07C233/09 ,  C07D213/81 ,  C07D233/00 ,  C07C102/08

Abstract: Disclosed herein is a process for the hydration of a nitrile compound. Owing to the use of a Raney copper catalyst having an iron content of 0.7 wt. % or less based on the copper component in a suspended state, the process allows the catalyst to retain high activity and facilitates the separation of the catalyst and liquid reaction mixture by sedimentalion and/or filtration. In an example, a catalyst with 0.1 iron achieved 67% conversion of acrylonitrile to acrylamide, whereas a catalyst with 1.56% iron achieved only 40%.

公开(公告)号：AU4730985A

公开(公告)日：1986-03-27

申请号：AU4730985

申请日：1985-09-10

Applicant: MITSUI TOATSU CHEMICALS

Inventor： ASANO SHIRO ,  KITAGAWA JUN

IPC: C07D213/82 ,  B01J25/00 ,  C07B31/00 ,  C07B43/06 ,  C07B61/00 ,  C07C67/00 ,  C07C231/00 ,  C07C231/06 ,  C07C231/08 ,  C07C233/09 ,  C07D213/81 ,  C07D233/00 ,  C07C102/08

Abstract: Disclosed herein is a process for the hydration of a nitrile compound. Owing to the use of a Raney copper catalyst having an iron content of 0.7 wt. % or less based on the copper component in a suspended state, the process allows the catalyst to retain high activity and facilitates the separation of the catalyst and liquid reaction mixture by sedimentalion and/or filtration. In an example, a catalyst with 0.1 iron achieved 67% conversion of acrylonitrile to acrylamide, whereas a catalyst with 1.56% iron achieved only 40%.

公开(公告)号：DE69006467D1

公开(公告)日：1994-03-17

申请号：DE69006467

申请日：1990-11-14

Applicant: MITSUI TOATSU CHEMICALS

Inventor： YOSHIKAWA YUKIHIRO ,  HIHARA TOORU ,  YAMADA KUNIHIRO ,  TAKENAKA SHINJI ,  KAWAHARA KAZUNORI ,  KITAGAWA JUN

IPC: B01J23/92 ,  B01J38/68 ,  C01B7/04

Abstract: The catalytic activity of a chromium oxide-based catalyst used in the production of chlorine by oxidation of hydrogen chloride gas with an oxygen-containing gas is regenerated by impregnating it with an aqueous solution of chromic acid anhydride or of a chromium salt and then calcining the catalyst at a temperature not higher than 800 DEG C.