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51. 发明专利

JPS6219578A PRODUCTION OF MALEIC ANHYDRIDE 失效
公开(公告)号：JPS6219578A
公开(公告)日：1987-01-28
申请号：JP15729485
申请日：1985-07-17
申请人： MITSUBISHI CHEM IND
发明人： OTAKE MASAYUKI , MURAYAMA MASAYOSHI
IPC分类号： C07D307/60 , B01J27/198
摘要： PURPOSE:To obtain safely and advantageously the titled substance without problems of reaction heat control, by oxidizing benzene in a gaseous phase by the use of a fluidized bed catalytic composition containing the first component having specific crystal structure and the second component of an amorphous vanadium-phosphorous type compound oxide, as active ingredients. CONSTITUTION:The aimed compound is obtained by oxidizing benzene in a gaseous phase by the use of a fluidized bed catalyst comprising a crystalline compound oxide containing vanadium and phosphorous, having characteristic X-ray diffraction peaks shown by the table, as the first component and an amorphous compound oxide containing vanadium and phosphorous as the second component, as a catalyst, more preferably a fluidized bed catalyst obtained by blending the catalyst with a proper carrier as the third component to form an aqueous slurry, subjecting the slurry to spray drying the calcining the prepared solid particles. The gaseous phase concentration of benzene is preferably about 0.1-10wt%, especially preferably about 0.2-5%. The reaction temperature is preferably 350-500 deg.C.

52. 发明专利

JPS61251678A PRODUCTION OF MALEIC ANHYDRIDE 失效
公开(公告)号：JPS61251678A
公开(公告)日：1986-11-08
申请号：JP9244485
申请日：1985-04-30
申请人： MITSUBISHI CHEM IND
发明人： OTAKE MASAYUKI , YAGI HIROSHI
IPC分类号： C07D307/60 , B01J27/198 , C07B61/00
摘要： PURPOSE:To produce maleic anhydride in improved reaction selectivity and operation safety, etc., by catalytically oxidizing an aliphatic hydrocarbon in vapor phase using a V-P compound oxide catalyst in the presence of a specific amount of a sulfur compound. CONSTITUTION:Maleic anhydride is produced by the vapor-phase oxidization of a >=4C aliphatic hydrocarbon such as n-butane, butene, etc., with air, etc., in the presence of a vanadium-phosphorus compound oxide catalyst (e.g. an oxide produced by dissolving vanadium pentoxide in an aqueous medium and subjecting the resultant solution containing 4-valent vanadium ion to hydrothermal treatment at 110-250 deg.C in the presence of e.g. phosphoric acid and an inorganic reducing agent). The above process is carried out in the presence of a sulfur compound (e.g. alkanethiol, alkylsulfone, etc.) at a high concentration, i.e. >=4ppm, especially >=5ppm in terms of sulfur atom based on the weight of the aliphatic hydrocarbon used as a raw material. The autoxidation reaction can be suppressed without retarding the oxidization reaction of the hydrocarbon to maleic anhydride.

53. 发明专利

JPS61207382A PRODUCTION OF MALEIC ANHYDRIDE 失效
公开(公告)号：JPS61207382A
公开(公告)日：1986-09-13
申请号：JP4886285
申请日：1985-03-12
申请人： MITSUBISHI CHEM IND
发明人： OTAKE MASAYUKI , IWANAMI YATSUHIRO , YAGI HIROSHI , MIYASAKA MOTOYUKI , MURAYAMA MASAYOSHI , KAWARAGI YUJI
IPC分类号： C07D307/60 , B01J27/00 , B01J27/198 , C07B61/00
摘要： PURPOSE:In obtaining the titled compound by oxidizing catalytically an aliphatic hydrocarbon in a gaseous phase in the presence of a specific V-P fluidized bed catalyst, to carry out the reaction while keeping catalytic activity, by feeding a volatile P compound or an oxygen-containing P compound to the reaction system. CONSTITUTION:In obtaining maleic anhydride by oxidizing (air is used as oxidizing agent, hydrocarbon concentration in air is 1.0-4.5vol% at 360-480 deg.C 0.1-10 kg/cm G) catalytically >=4C aliphatic hydrocarbon (preferably n-butane or butene) in the presence of a fluidized bed catalyst consisting of a composition comprising a crystalline compound oxide containing V and P, showing X-ray diffraction peak shown by the table and an amorphous compound oxide containing V and P, mol based on 1mol V in the catalyst of a P compound (preferably phosphorous ester or orthophosphoric ester) selected from a volatile P compound and an oxygen-containing P compound as a daily feed amount is added to the reaction system.

54. 发明专利

JPS61115079A Production of lactone 失效
标题翻译：生产Lactone
公开(公告)号：JPS61115079A
公开(公告)日：1986-06-02
申请号：JP23587484
申请日：1984-11-08
申请人： Mitsubishi Chem Ind Ltd
发明人： OTAKE MASAYUKI , USHIKUBO TAKASHI , KAYOU ATSUSHI
IPC分类号： C07D307/33 , B01J23/00 , B01J23/89 , C07B61/00 , C07D307/32
CPC分类号： Y02P20/52
摘要： PURPOSE: To obtain the titled compound in high selectivity without preparing by-products, by reacting a dicarboxylic acid with hydrogen by the use of a catalyst comprising palladium, chromium, and cobalt.
CONSTITUTION: A dicarboxylic acid or its anhydrid is reacted with hydrogen in the presence of a catalyst containing palladium, chromium, and cobalt as essential components in the absence of a solvent or in a solvent such as a lactone, tetrahydrofuran, etc., to give a lactone. The catalyst used is usually obtained by preparing previously cobalt chromate from raw material compounds of a chromium component and a cobalt component, and adding a palladium component to it. An atomic ratio of palladium to chromium is 1/2,000W1/10, prefferably 1/1,1000W1/10,and an atomic ratio of cobalt to chromium is 1/10W10. maleic anhydride, succinic anhydride, etc., may be used as the dicabroxylic acid or its anhydride.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：通过使用包含钯，铬和钴的催化剂使二羧酸与氢反应，以高选择性得到标题化合物而不制备副产物。构成：在不存在溶剂的情况下或在溶剂如内酯，四氢呋喃等中，在含有钯，铬和钴的催化剂的存在下，二羧酸或其无水物与氢反应，得到内酯。所使用的催化剂通常通过从铬组分和钴组分的原料化合物制备预先的铬酸铬，并向其中加入钯组分来获得。钯与铬的原子比为1 / 2,000-1 / 10，优选为1 / 1,1000-1 / 10，钴与铬的原子比为1/10〜10。马来酸酐，琥珀酸酐等可以用作二十八酸或其酸酐。

55. 发明专利

JPS6177620A Zeolite composition 失效
标题翻译：沸石组合物
公开(公告)号：JPS6177620A
公开(公告)日：1986-04-21
申请号：JP19980084
申请日：1984-09-25
申请人： Mitsubishi Chem Ind Ltd
发明人： OTAKE MASAYUKI , TSURITA YASUSHI
IPC分类号： C07C2/86 , B01J29/00 , C01B37/04 , C01B39/04 , C01B39/06 , C01B39/38 , C07B61/00 , C07C1/00 , C07C15/08 , C07C67/00
CPC分类号： Y02P20/52
摘要： PURPOSE: To obtain a zeolite compsn. useful as a novel catalyst by allowing an aq. mixture contg. sparingly water-soluble alumina source, silica source, and phosphate source, together with org. amine or quat. ammonium ion to cause hydrothermal reaction.
CONSTITUTION: An aq. mixture contg. sparingly water-soluble alumina source, silica source, and phosphate source together with an org. amine or a quat. ammonium ion is prepd. The aq. mixture is charged in an autoclave and heated to cause hydrothermal reaction. Crystalline aluminophospho silicate is obtd. by filtering the reaction liquid. The principal powder X-ray diffraction peaks of the zeolite compsn. are given in Table 1 and 2. The zeolite compsn. is suited as catalyst for reactions requiring shape selectivity, such as prepn. of dialkyl benzene compds., synthesis of hydrocarbon from methanol, etc.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：获得沸石组合物。通过使一种水溶液作为新型催化剂起作用。混合物少量水溶性氧化铝源，二氧化硅源和磷酸盐源，以及组织。胺或季铵盐。铵离子引起水热反应。构成：混合物微溶水氧化铝源，二氧化硅源和磷酸盐源与组织。胺或季铵盐。铵离子是制备的。水。。将混合物装入高压釜中并加热以引起水热反应。结晶硅铝硅酸盐是可以得到的。通过过滤反应液。沸石的主要粉末X射线衍射峰。表1和表2给出了沸石。适用于需要形状选择性的反应的催化剂，如制备。的二烷基苯化合物，从甲醇中合成烃等

56. 发明专利

JPH06122635A METHOD FOR ISOMERIZING DIALKYLNAPHTHALENE 失效
公开(公告)号：JPH06122635A
公开(公告)日：1994-05-06
申请号：JP25012992
申请日：1992-09-18
申请人： MITSUBISHI CHEM IND
发明人： OTAKE MASAYUKI , MASUYAMA TETSUO , NAKANISHI AKIO
IPC分类号： B01J29/08 , C07B61/00 , C07C5/27 , C07C15/24
摘要： PURPOSE:To efficiently isomerize a dialkylnaphthalene or its isomer mixture into a desired dialkylnaphthalene isomer in a short time, while preventing the loss of the dialkylnaphthalene or its isomer mixture due to side reactions such as a disproportionation reaction and a transalkylation reaction. CONSTITUTION:At least one kind of dialkylnaphthalene isomer is heated in the presence of a catalyst comprising faujasite type zeolite belonging to a hexagonal crystal group and preferably in the presence of hydrogen gas to isomerize the dialkylnaphthalene. Since the intergroup isomerization of the dialkylnaphthalenes is more apt to occur by raising the reaction temperature, increasing the concentration of the catalyst and prolonging the catalyst contact time, the reaction temperature is 100-400 deg.C, preferably 150-250 deg.C, for the intragroup isomerization, and is 200-500 deg.C, preferably 300-450 deg.C, for the intergroup isomerization. The catalyst is prepared by using the compounds for ordinary synthetic zeolite as a silica source and an alumina source and using 18- crown-6(1,4,7,10,13,16-hexaoxoacyloctadecane) as a template agent.

57. 发明专利

JPH069441A ISOMERIZATION OF DIALKYLNAPHTHALENE 失效
公开(公告)号：JPH069441A
公开(公告)日：1994-01-18
申请号：JP18469192
申请日：1992-06-19
申请人： MITSUBISHI CHEM IND
发明人： MASUYAMA TETSUO , ASAHI YOSHIO , OTAKE MASAYUKI
IPC分类号： C07B61/00 , B01J29/70 , C07C5/27 , C07C15/24 , B01J29/28
摘要： PURPOSE:To remarkably suppress inter-group isomerization reaction and disproportionation reaction and obtain a mixture of dimethylnaphthalene isomers belonging to the same group in high efficiency. CONSTITUTION:Dialkylnaphthalene is isomerized at 150-250 deg.C in the presence of a catalyst consisting of a pentasil-type zeolite having 10-membered oxygen ring constituting the inlet of main cavity, a silica/alumina ratio of 12-100 and a surface-acid amount of 0.05-0.5mmol/g measured by an acid amount determination process using an aqueous solution of an amine.

58. 发明专利

JPH04128244A MODIFICATION OF ALKYLNAPHTHALENE MIXTURE 失效
公开(公告)号：JPH04128244A
公开(公告)日：1992-04-28
申请号：JP24854890
申请日：1990-09-18
申请人： MITSUBISHI CHEM IND
发明人： OTAKE MASAYUKI , MASUYAMA TETSUO , NAKANISHI AKIO
IPC分类号： B01J21/02 , B01J29/40 , C07B61/00 , C07C5/27 , C07C6/12 , C07C15/24
摘要： PURPOSE:To modify an alkylnaphthalene mixture by subjecting the title mixture to a conversion reaction in the presence of a solid acid catalyst and hydrogen, bringing a vapor phase prepared after removal of the title modified mixture into contact with a hydrogenating catalyst or a catalyst having hydrogenating and decomposing ability to remove olefins of by-products and circulating the vapor phase. CONSTITUTION:The title mixture containing >=50% dialkylnaphthalene obtained from coal tar or petroleum-based heavy oil is subjected to a conversion reaction in the presence of a solid acid catalyst (e.g. H-mordenite type zeolite) and hydrogen at 300-500 deg.C under normal pressure to 30KG and the reaction product is cooled to remove the title modified mixture out of the system. A vapor phase after the reaction is brought into contact with a hydrogenating catalyst and/or a catalyst (e.g. Ni, Ru or Pt supported on alumina) having hydrogenating and decomposing ability at 250-400 deg.C under normal pressure to 100KG, and olefins contained in the vapor phase are removed and the vapor phase is circulated and used. The olefins will not be accumulated in the reaction system.

59. 发明专利

JPH04112841A PRODUCTION OF DIMETHYLNAPHTHALENE ISOMER MIXTURE WITH RAISED CONCENTRATION OF 2,6-DIMETHYLNAPHTHALENE 失效
公开(公告)号：JPH04112841A
公开(公告)日：1992-04-14
申请号：JP23270190
申请日：1990-09-03
申请人： MITSUBISHI CHEM IND
发明人： OTAKE MASAYUKI , NAKANISHI AKIO
IPC分类号： B01J23/78 , C07B61/00 , C07C5/27 , C07C6/12 , C07C15/24
摘要： PURPOSE:To raise the 2,6-isomer concentration by reacting the subject mixture at a lower concentration of the 2,6-dimethylnaphthalene than the thermodynamic equilibrium concentration in the presence of a solid acid catalyst composed of a crystalline Ni-containing metallosilicate. CONSTITUTION:The subject mixture at a lower concentration of the 2,6-isomer than the thermodynamic equilibrium concentration is reacted in the presence of a solid acid catalyst composed of a compound expressed by the formula [M is alkali (earth) metal having a valence (m); m is 1 or 2; x is 0-1; y is 0.01-10; z is 2-100; n is 1-20] at 250-450 deg.C to raise the 2,6-isomer concentration. Ni in the compound expressed by the formula is partially or wholly located at the tetrahedral substitution positions and present in a form subjected to ion exchange with the alkali (earth) metal (M) or a supported state. In the aforementioned formula, z, x and y are (z/x)>=3 and (z/y)

60. 发明专利

JPH04112840A PRODUCTION OF 2,6-DIALKYLNAPHTHALENE 失效
公开(公告)号：JPH04112840A
公开(公告)日：1992-04-14
申请号：JP23270090
申请日：1990-09-03
申请人： MITSUBISHI CHEM IND
发明人： OTAKE MASAYUKI , MASUYAMA TETSUO , NAKANISHI AKIO
IPC分类号： B01J20/18 , B01J20/281 , C07B61/00 , C07C5/27 , C07C6/12 , C07C7/12 , C07C15/24
摘要： PURPOSE:To produce the subject compound by separating the 2,6-isomer from a feedstock oil containing a dialkylnaphthalene isomer mixture, subjecting the residual feedstock oil to converting reaction, raising the concentration of the 2,6-isomer, removing part, etc., of the 1,8-isomer fraction from the resultant reaction product and recycling the obtained dialkyl derivative to the initial step. CONSTITUTION:A feedstock oil containing a dialkylnaphthalene isomer mixture is brought into contact with Y-type zeolite preferably subjected to ion exchange with La, Ba, etc., to separate and obtain the 2,6-isomer. The resultant feedstock oil at a reduced 1,6-isomer concentration is then subjected to converting reaction in the presence of a solid acid catalyst or a Lewis acid catalyst in the vapor or the liquid phase at 20-500 deg.C under atmospheric pressure to 50 atm to raise the 2,6-isomer concentration. The obtained reaction product is subsequently fed to a distillation column to distill away low-boiling substances from the column top. Bottom liquids are then distilled to distill away the 1,8-isomer together with highboiling substances from the column bottom to the outside of the system. A dialkyl derivative obtained from the column top is then recycled to the initial step. As a result, operation can be smoothly performed by removing the 1,8-isomer.

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