公开(公告)号：US3899446A

公开(公告)日：1975-08-12

申请号：US43846774

申请日：1974-01-31

Applicant: KAO CORP

Inventor： MIYA BUNJI ,  KASUTANI KATSUJI ,  MATSUDA MORIO ,  HASHIMOTO AKIO ,  NISIGAWA SHIYOZO ,  SAWAMOTO YOUZI

IPC: C07C29/136 ,  B01J23/86 ,  B01J37/16 ,  C07B61/00 ,  C07C27/00 ,  C07C29/149 ,  C07C31/125 ,  C07C67/00 ,  B01J23/16 ,  B01J23/64 ,  B01J23/84

CPC classification number: B01J37/16 ,  B01J23/868 ,  C07C29/149 ,  C07C31/125 ,  C07C33/025

Abstract: A process for preparing copper-chromium catalysts is provided, in which 0.5-3 moles of chromic acid anhydride are dissolved in water, the resulting solution is added and reacted with 1 mole of cupric oxide, 0.1-1 mole (as formaldehyde) of a reducing agent which will be converted into carbon dioxide and water by oxidation is added thereto and reacted, further 0.9-8.0 moles of ammonia are added thereto and reacted, and the resulting product is dried by evaporation and calcined to obtain the desired catalyst.

公开(公告)号：US3894054A

公开(公告)日：1975-07-08

申请号：US37672473

申请日：1973-07-05

Applicant: KAO CORP

Inventor： MIYA BUNJI

IPC: B01J23/00 ,  B01J23/86 ,  B01J35/00 ,  B01J37/00 ,  C07B61/00 ,  C07D307/08 ,  C07D5/02

CPC classification number: C07D307/08 ,  B01J23/868 ,  B01J35/0006 ,  B01J37/0009

Abstract: Tetrahydrofuran is produced by catalytically hydrogenating and dehydrating maleic anhydride at a temperature of 200*-300*C under a pressure of 10-50 kg/cm2 in a molar ratio of hydrogen:maleic anhydride of from 10:1 to 200:1, characterized by conducting the reaction in the presence of a catalyst composition comprising a mixture of a catalyst obtained by calcining a silica-alumina catalyst having a silica:alumina molar ratio of 0.03-0.05:1 at 950*-1,150*C and a copper-chromium-zinc catalyst wherein the proportion of said copper containing catalyst in the mixture is 30-80 wt. %.

Abstract translation: 四氢呋喃的制备方法是在200-300℃的温度下，在10-50kg / cm2的压力下，马来酸酐的摩尔比为10:1至200:1的摩尔比催化氢化和脱水马来酸酐，其特征在于 在催化剂组合物的存在下进行反应，所述催化剂组合物包含通过在950-1.150℃下煅烧二氧化硅：氧化铝摩尔比为0.03-0.05:1的二氧化硅 - 氧化铝催化剂和铜 - 铬 锌催化剂，其中所述含铜催化剂在混合物中的比例为30-80wt。 ％。

公开(公告)号：US3580930A

公开(公告)日：1971-05-25

申请号：US3580930D

申请日：1967-12-27

Applicant: KAO CORP

Inventor： MIYA BUNJI ,  HOSHINO FUMIRO ,  MATUDA MORIO

IPC: B01J23/86 ,  C07D315/00 ,  C07D5/06

CPC classification number: C07D315/00 ,  B01J23/868

Abstract: A PROCESS FOR PRODUCING GAMMA-BUTYROLACTONE BY HYDROGENATING MALEIC ANHYDRIDE, MALEIC ACID, FUMARIC ACID, SUCCINIC ANHYDRIDE OR SUCCINIC ACID OR MIXTURES THEREOF, IN THE GAS PHASE, IN THE PRESENCE OF A ZN-CU-CR CATALYST, IN ORDER TO PRODUCE HIGH YIELDS OF GAMMA-BUTYROLACTONE AND MINIMIZE THE FORMATION OF BY-PRODUCTS.

公开(公告)号：DE2404757A1

公开(公告)日：1974-08-15

申请号：DE2404757

申请日：1974-02-01

Applicant: KAO CORP

Inventor： MIYA BUNJI ,  KASUTANI KATSUJI ,  MATSUDA MORIO ,  HASHIMOTO AKIO ,  NISIGAWA SHIYOZO ,  SAWAMOTO YOUZI

IPC: C07C29/136 ,  B01J23/86 ,  B01J37/16 ,  C07B61/00 ,  C07C27/00 ,  C07C29/149 ,  C07C31/125 ,  C07C67/00 ,  B01J11/22

公开(公告)号：DE2816127A1

公开(公告)日：1978-11-23

申请号：DE2816127

申请日：1978-04-14

Applicant: KAO CORP

Inventor： MIYA BUNJI ,  KIMURA AIO

IPC: B01J23/00 ,  C07B61/00 ,  C07C51/00 ,  C07C59/125 ,  C07C59/60 ,  C07C59/68 ,  C07C67/00 ,  C08G65/00 ,  C08G65/32 ,  C08G65/324

公开(公告)号：DE1953583A1

公开(公告)日：1970-05-06

申请号：DE1953583

申请日：1969-10-24

Applicant: KAO CORP

Inventor： MIYA BUNJI ,  HOSHINO FUMIRO ,  ONO TOSHIO

IPC: B01J23/00 ,  C07B61/00 ,  C07D307/08 ,  C07D315/00

公开(公告)号：DE2332906A1

公开(公告)日：1974-04-04

申请号：DE2332906

申请日：1973-06-28

Applicant: KAO CORP

Inventor： MIYA BUNJI

IPC: B01J23/00 ,  B01J23/86 ,  B01J35/00 ,  B01J37/00 ,  C07B61/00 ,  C07D307/08 ,  C07D5/02

Abstract: Tetrahydrofuran is produced by catalytically hydrogenating and dehydrating maleic anhydride at a temperature of 200 DEG -300 DEG C under a pressure of 10-50 kg/cm2 in a molar ratio of hydrogen:maleic anhydride of from 10:1 to 200:1, characterized by conducting the reaction in the presence of a catalyst composition comprising a mixture of a catalyst obtained by calcining a silica-alumina catalyst having a silica:alumina molar ratio of 0.03-0.05:1 at 950 DEG -1,150 DEG C and a copper-chromium-zinc catalyst wherein the proportion of said copper containing catalyst in the mixture is 30-80 wt. %.

公开(公告)号：DE1668348A1

公开(公告)日：1972-03-30

申请号：DE1668348

申请日：1967-12-21

Applicant: KAO CORP

Inventor： MIYA BUNJI ,  HOSHINO FUMIRO ,  MATUDA MORIO

IPC: B01J23/86 ,  C07D315/00 ,  C07D5/06

公开(公告)号：MX4974E

公开(公告)日：1983-01-26

申请号：MX10073677

申请日：1977-02-08

Applicant: KAO CORP

Inventor： HATOORI KENICHI ,  MIYA BUNJI ,  MATSUDA MORIO ,  ISHII MUTSUO ,  SAITO HISASHI ,  WATANABE HIDROSHI ,  TAKIZAWA HIDEMITU

IPC: C07H1/00 ,  C07H3/02

公开(公告)号：DE3008988A1

公开(公告)日：1980-10-09

申请号：DE3008988

申请日：1980-03-08

Applicant: KAO CORP

Inventor： MIYA BUNJI

IPC: C07C29/136 ,  B01J23/745 ,  B01J37/03 ,  C07C27/00 ,  C07C29/149 ,  C07C31/125 ,  C07C67/00 ,  B01J21/02 ,  B01J23/70 ,  C07C29/00

Abstract: A process for the preparation of copper-iron-aluminum hydrogenation catalysts comprises the step of: dissolving a cupric salt, a ferrous salt and an aluminum salt in water dissolving urea in the resulting aqueous solution in such an amount that the mole number of urea is at least 0.7 time as large as the sum of equivalents of the metal ions, heating the mixed aqueous solution, further continuing the heating until a pH of the liquid is 4.6 to 7.5, adding an alkali to the reaction liquid to elevate a pH to 9.5 to 11.5, further conducting the reaction and then separating, water-washing, drying and calcining the formed precipitate.