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    PROCESS FOR PREPARATION OF INDOLE
    1.
    发明授权
    PROCESS FOR PREPARATION OF INDOLE 失效

    公开(公告)号：KR860001577B1

    公开(公告)日：1986-10-10

    申请号：KR820003832

    申请日：1982-08-25

    Applicant: MITSUI TOATSU CHEMICALS

    Inventor： HONDA TADATOSHI ,  TERADA KAZUHIRO

    IPC: C07B61/00 ,  C07D209/08

    Abstract: An improved prepn. of indole comprises reacting aniline with ethylene glycol in the gas phase in the presence of a catalyst. Ethylene glycol is fed to satisfy a condition that n is (M-1)/(A-1) or more. In the formula, n is the number of divided supply ports; M is the min. number of aniline per mol. of ethylene glycol in the catalytic bed; and A is the mol. number of aniline per mol. of total ethylene glycol fed into the reactor. The process gives a large yield of indole, while reducing the amt. of unreacted aniline.

    PROCESS FOR THE PREPARATION OF INDOLES
    2.
    发明授权
    PROCESS FOR THE PREPARATION OF INDOLES 失效

    公开(公告)号：KR860001601B1

    公开(公告)日：1986-10-13

    申请号：KR820002627

    申请日：1982-06-12

    Applicant: MITSUI TOATSU CHEMICALS

    Inventor： HONDA TADATOSHI ,  MATSUDA FUJIO ,  TERADA KAZUHIRO ,  KIYOURA TADAMITSU

    IPC: B01J23/00 ,  B01J23/66 ,  C07B61/00 ,  C07D209/08

    Abstract: Indoles were prepd. by reacting aniline or its derivs. with 1,2- glycol under catalysts. Thus, a soln. contg. 30 g cadmium nitrate and 19 g 60%-HNO3 in 300 ml H2O was mixed with 130 g glass fiber contg. 29% SiO2 and 9% Na2O in 2 liters H2O to give a matrix (10-28 mesh; specific surface area=240 m2/g). This material was soaked in 25 wt.% AgNO3, dried at 80≦̸C, and reduced by boiling at 150≦̸C for 2 hrs. to give a catalyst. A mixt. contg. 7 M aniline and 1 M ethylene glycol was introduced into the reactor contg. a catalyst at the rate of 0.3 liter-mixt./1 liter-catalyst. At the same time, a mixt. contg. aniline and N2-gas (aniline; N2=1M:10M) was passed through the reactor. After reaction, the yield of ethylene glycol produced was 63% between 1 and 3 hrs. and 28% between 25 and 27 hrs.

    4.
    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.

    5.
    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.

    6.
    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.

    IMPROVED PROCESS FOR PREPARING INDOLE
    9.
    发明专利
    IMPROVED PROCESS FOR PREPARING INDOLE 未知

    公开(公告)号：GB2116558B

    公开(公告)日：1985-08-07

    申请号：GB8310651

    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.

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