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    11.
    发明专利
    未知

    公开(公告)号：ES2060066T3

    公开(公告)日：1994-11-16

    申请号：ES90312478

    申请日：1990-11-15

    Applicant: MITSUI TOATSU CHEMICALS

    Inventor： HONDA TADATOSHI ,  TERADA KAZUHIRO

    IPC: B01J27/18 ,  C07B61/00 ,  C07C5/48 ,  C07C11/02 ,  C07C253/24 ,  C07C255/07 ,  C07C255/08

    Abstract: A method for preparing an unsaturated compound mainly comprising monoolefins, or a mixture of alpha , beta -unsaturated nitriles and monoolefins comprises bringing mixed gas which comprises paraffins and oxygen, or paraffins, oxygen and ammonia in contact with a catalyst which comprises (1) an oxide of phosphorus and (2) at least one oxide selected from the group consisting of indium oxide and tin oxide and optionally, in addition to the foregoing catalytic components, (3) at least one oxide selected from the group consisting of vanadium oxide, tungsten oxide and molybdenum oxide. The method makes it possible to prepare monoolefins, or a mixture of alpha , beta -unsaturated nitriles and monoolefins in high yield and high selectivity from cheap starting materials, namely paraffins.

    12.
    发明专利
    未知

    公开(公告)号：DE69012279D1

    公开(公告)日：1994-10-13

    申请号：DE69012279

    申请日：1990-11-15

    Applicant: MITSUI TOATSU CHEMICALS

    Inventor： HONDA TADATOSHI ,  TERADA KAZUHIRO

    IPC: B01J27/18 ,  C07B61/00 ,  C07C5/48 ,  C07C11/02 ,  C07C253/24 ,  C07C255/07 ,  C07C255/08

    Abstract: A method for preparing an unsaturated compound mainly comprising monoolefins, or a mixture of alpha , beta -unsaturated nitriles and monoolefins comprises bringing mixed gas which comprises paraffins and oxygen, or paraffins, oxygen and ammonia in contact with a catalyst which comprises (1) an oxide of phosphorus and (2) at least one oxide selected from the group consisting of indium oxide and tin oxide and optionally, in addition to the foregoing catalytic components, (3) at least one oxide selected from the group consisting of vanadium oxide, tungsten oxide and molybdenum oxide. The method makes it possible to prepare monoolefins, or a mixture of alpha , beta -unsaturated nitriles and monoolefins in high yield and high selectivity from cheap starting materials, namely paraffins.

    PREPARATION PROCESS OF INDOLES
    13.
    发明专利
    PREPARATION PROCESS OF INDOLES 未知

    公开(公告)号：CA2029361A1

    公开(公告)日：1991-05-11

    申请号：CA2029361

    申请日：1990-11-06

    Applicant: MITSUI TOATSU CHEMICALS

    Inventor： HONDA TADATOSHI ,  KOTANI MAKOTO

    IPC: C07D209/68 ,  B01J23/50 ,  B01J23/89 ,  C07B61/00 ,  C07D209/04

    Abstract: A process is provided for the preparation of an indole from aniline or a derivative thereof and a polyhydric alcohol. The reaction is carried out in the presence of a catalyst composed of a carrier having a specific surface area of at least 10 m /g and silver supported on the carrier. The catalyst also contains as an additional component a specific amount of at least one element selected from Co, Fe and Ni. Deterioration in catalytic performance of the catalyst during the reaction and its regeneration are therefore minimized.

    14.
    发明专利
    未知

    公开(公告)号：DE3248986C2

    公开(公告)日：1986-02-13

    申请号：DE3248986

    申请日：1982-08-25

    Applicant: MITSUI TOATSU CHEMICALS

    Inventor： HONDA TADATOSHI ,  TERADA KAZUHIRO

    IPC: C07B61/00 ,  C07D209/08

    Abstract: PCT No. PCT/JP82/00337 Sec. 371 Date Apr. 22, 1983 Sec. 102(e) Date Apr. 22, 1983 PCT Filed Aug. 25, 1982 PCT Pub. No. WO83/00691 PCT Pub. Date Mar. 3, 1983.Preparation process of indole from aniline and ethylene glycol. Upon preparing indole by reacting aniline and ethylene glycol in a gas phase and in the presence of a catalyst, ethylene glycol is charged in portions to a multiplicity of catalyst stages formed by dividing a catalyst bed and connected in series. This divided supply of ethylene glycol permits the suppresing of the decomposition of ethylene glycol, even if the molar ratio of feed aniline to total feed ethylene glycol is small. The above process permits making the yield of indole large and reducing the amount of unreacted aniline to be separated and recovered from the reaction effluent.

    16.
    发明专利
    未知

    公开(公告)号：IT8123767D0

    公开(公告)日：1981-09-03

    申请号：IT2376781

    申请日：1981-09-03

    Applicant: MITSUI TOATSU CHEMICALS

    Inventor： HONDA TADATOSHI ,  ITOH HIROSHI ,  SAITO JUN ,  MITSUISHI TAKATOSHI

    IPC: B01D21/01 ,  C07C233/09 ,  C08F2/00 ,  C08F2/10 ,  C08F2/16 ,  C08F20/52 ,  C08F20/56 ,  C08F220/56 ,  C08F

    Abstract: Polyacrylamide useful as a high- molecular-weight, water-soluble cationic flocculant, is produced by polymerizing acrylamide which is substantially free from N-acryloyl acrylamide with a minor amount of cationic monomer. Crude acrylamide is preferably obtained by catalytic hydration of acrylonitrile with water in the presence of a metallic copper catalyst at a pH in the range of from 4 to 10, and then rendered substantially free from N-acryloyl acrylamide by physical adsorption, reactive adsorption, decomposition by a chemical reaction or a solvent extraction.

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