公开(公告)号：US4828815A

公开(公告)日：1989-05-09

申请号：US132665

申请日：1987-12-10

申请人： Tadamitsu Kiyoura ,  Masanobu Ajioka ,  Naoshi Fujimoto ,  Toshihide Suzuki ,  Yasuo Kogure ,  Tokio Nagayama ,  Kazuo Kanaya

发明人： Tadamitsu Kiyoura ,  Masanobu Ajioka ,  Naoshi Fujimoto ,  Toshihide Suzuki ,  Yasuo Kogure ,  Tokio Nagayama ,  Kazuo Kanaya

IPC分类号： B01J23/26 ,  C01B7/01 ,  C01B7/04

CPC分类号： C01B7/04 ,  B01J23/26

摘要： Chlorine can be efficiently produced at a low temperature and with a high hourly space velocity by oxidizing hydrogen chloride with an oxygen-containing gas in the presence of a catalyst obtained by calcining a compound, which has in turn been obtained by reacting chromium nitrate, chromium chloride, the chromium salt of an organic acid or the like with ammonia, or by calcining a mixture of the compound and a silicon compound, preferably, at a temperature lower than 800.degree. C.

摘要翻译： 通过在通过煅烧化合物获得的催化剂的存在下，通过用含氧气体氧化氯化氢，可以在低温和高的小时空间速度下有效地制备氯，这又是通过使硝酸铬，铬 氯化物，有机酸的铬盐等与氨的混合物，或者通过煅烧化合物和硅化合物的混合物，优选在低于800℃的温度下进行。

公开(公告)号：US5155235A

公开(公告)日：1992-10-13

申请号：US726185

申请日：1991-07-05

申请人： Jimbo Takashi ,  Tadamitsu Kiyoura ,  Yasuo Kogure ,  Kazuo Kanaya

发明人： Jimbo Takashi ,  Tadamitsu Kiyoura ,  Yasuo Kogure ,  Kazuo Kanaya

IPC分类号： B01J27/198 ,  C07C51/215

CPC分类号： B01J23/002 ,  B01J27/198 ,  C07C51/215 ,  B01J2523/00

摘要： A catalyst for producing maleic anhydride by oxidation of n-butane comprising V,P and additionally Mg or Zr is prepared by(a) heating a pentavalent vanadium compound in an organic medium to reduce at least a part of the pentavalent vanadium to tetravalent vanadium,(b) reacting the resulting vanadium compound with phosphoric acid in the presence of at least one of a magnesium compound and a zirconium compound to form a catalyst precursor,(c) separating the resulting catalyst precursor from the organic medium, and(d) drying and calcining the catalyst precursor.

公开(公告)号：US4822589A

公开(公告)日：1989-04-18

申请号：US148508

申请日：1988-01-26

申请人： Tadamitsu Kiyoura ,  Yasuo Kogure ,  Tokio Nagayama ,  Kazuo Kanaya

发明人： Tadamitsu Kiyoura ,  Yasuo Kogure ,  Tokio Nagayama ,  Kazuo Kanaya

IPC分类号： B01J23/26 ,  C01B7/04

CPC分类号： C01B7/04 ,  B01J23/26 ,  Y02P20/228

摘要： In the process of producing chlorine by oxidizing hydrogen chloride with molecular oxygen, activity of the catalyst can be maintained for a long period with a high conversion ratio under high space velocity of gaseous raw materials without using additives as in conventional methods, in the presence of a crystalline chromic oxide catalyst obtained by supporting relatively large amounts of chromic oxide on a silicon oxide carrier having a specified pore volume.

公开(公告)号：US5032564A

公开(公告)日：1991-07-16

申请号：US482492

申请日：1990-02-21

申请人： Tadamitsu Kiyoura ,  Jimbo, Takashi ,  Yasuo Kogure ,  Kazuo Kanaya

发明人： Tadamitsu Kiyoura ,  Jimbo, Takashi ,  Yasuo Kogure ,  Kazuo Kanaya

IPC分类号： C07D307/60 ,  B01J23/22 ,  B01J27/198 ,  C07B61/00 ,  C07C51/215

CPC分类号： C07C51/215 ,  B01J23/002 ,  B01J23/22 ,  B01J27/198 ,  B01J2523/00

摘要： A cayalyst precursor is produced by reacting V.sub.2 O.sub.4 with phosphoric acid in an organic solvent in the presence of a polyol. The catalyst precursor is calcined to obtain a catalyst having a high density, highly attrition-resistance and a large specific surface area and requiring only a low temperature for the oxidation of butane.

公开(公告)号：US5336440A

公开(公告)日：1994-08-09

申请号：US975951

申请日：1992-11-13

申请人： Tadamitsu Kiyoura ,  Takashi Jimbo ,  Yasuo Kogure ,  Kazuo Kanaya

发明人： Tadamitsu Kiyoura ,  Takashi Jimbo ,  Yasuo Kogure ,  Kazuo Kanaya

IPC分类号： B01J23/26 ,  C01B3/22 ,  C01B3/32 ,  C07C1/02

CPC分类号： B01J23/26 ,  C01B3/22 ,  C01B3/326 ,  C01B2203/1047 ,  C01B2203/1052 ,  C01B2203/1076 ,  Y02P20/52

摘要： Methanol is decomposed in the presence of a catalyst containing chromium oxide and zinc oxide as main components and containing a compound of at least one element selected from the group consisting of alkali metals, alkali earth metals and lanthanides, while contents of iron and nickel in the catalyst are each maintained at 0.5% by weight or less. This process is characterized by (1) being excellent in stability at high temperatures, (2) preventing the catalyst from deteriorating, (3) inhibiting the production of by-products, and (4) obtaining a gas in which the CO/H.sub.2 ratio is high.

摘要翻译： 甲醇在含有氧化铬和氧化锌作为主要成分的催化剂存在下分解，并含有选自碱金属，碱土金属和镧系元素中的至少一种元素的化合物，而铁和镍的含量在 催化剂各自保持在0.5重量％以下。 该方法的特征在于（1）在高温下的稳定性优异，（2）防止催化剂劣化，（3）抑制副产物的生成，（4）获得CO / H 2比 高。

公开(公告)号：US5147624A

公开(公告)日：1992-09-15

申请号：US759630

申请日：1991-09-16

申请人： Tadamitsu Kiyoura ,  Masanobu Ajioka ,  Naoshi Fujimoto ,  Toshihide Suzuki ,  Yasuo Kogure ,  Tokio Nagayama ,  Kazuo Kanaya

发明人： Tadamitsu Kiyoura ,  Masanobu Ajioka ,  Naoshi Fujimoto ,  Toshihide Suzuki ,  Yasuo Kogure ,  Tokio Nagayama ,  Kazuo Kanaya

IPC分类号： B01J23/26 ,  C01B7/01 ,  C01B7/04

CPC分类号： C01B7/04 ,  B01J23/26

摘要： Chlorine can be efficiently produced at a low temperature and with a high hourly space velocity by oxidizing hydrogen chloride with an oxygen-containing gas in the presence of a catalyst obtained by calcining a compound, which has in turn been obtained by reacting chromium nitrate, chromium chloride, the chromium salt of an organic acid or the like with ammonia, or by calcining a mixture of the compound and a silicon compound, preferably, at a temperature lower than 800.degree. C.