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1. 发明专利

JPH09249619A PRODUCTION OF METHYLAMINES 失效
公开(公告)号：JPH09249619A
公开(公告)日：1997-09-22
申请号：JP5488096
申请日：1996-03-12
申请人： MITSUI TOATSU CHEMICALS
发明人： KIYOURA TADAMITSU , AOKI SHINOBU , IKEDA KEIICHI , MATSUI KAZUAKI , TOKUMOTO SHUICHI , INOUE KAORU
IPC分类号： B01J29/08 , C07B61/00 , C07C209/16 , C07C211/04
摘要： PROBLEM TO BE SOLVED: To stably obtain dimethylamine and monomethylamine while suppressing reduction in catalytic performances and subduing formation of trimethylamine even in a case in which a methanol admixed with formaldehyde, etc., is used as a raw material. SOLUTION: Methanol is reacted with ammonia in the presence of hydrogen and a metal zeolite obtained by replacing a zeolite as a catalyst with an ion of a metal having reducing ability such as copper, silver, gold or nickel to give the objective methylamine. Preferably unreacted methanol recovered from the reaction mixture is used as a part of methanol. In the reaction, the content of formaldehyde is

2. 发明专利

JPH0776563A PRODUCTION OF ALPHA-HYDROXYISOBUTYRIC ACID AMIDE 失效
公开(公告)号：JPH0776563A
公开(公告)日：1995-03-20
申请号：JP22300893
申请日：1993-09-08
申请人： MITSUI TOATSU CHEMICALS
发明人： FUKADA ISAO , MURAISHI TERUO , IKEDA KEIICHI , TOKUMITSU MASAHIRO , YAMAMOTO SADAAKI
IPC分类号： B01J23/34 , C07B61/00 , C07C231/06 , C07C233/05 , C07C235/06
摘要： PURPOSE:To provide the method for producing the alpha-hydroxyisobutyric acid amide, capable of remarkably improving the catalystic life of manganese dioxide and profitably producing the cc-hydroxyisobutyric acid amide. CONSTITUTION:When acetone cyanhydrin is reacted with water in the presence of a catalyst containing manganese dioxide as a main component in a liquid phase to produce the alpha-hydroxyisobutyric acid amide, carbon dioxide is added to the reaction system.

3. 发明专利

JPH0611743B2 失效
公开(公告)号：JPH0611743B2
公开(公告)日：1994-02-16
申请号：JP3055285
申请日：1985-02-20
申请人： MITSUI TOATSU CHEMICALS
发明人： TSUMURA RYUICHIRO , MYATA KATSUJI , KASUGA TAKAHARU , IKEDA KEIICHI
IPC分类号： C07B61/00 , B01J31/00 , B01J31/02 , B01J31/22 , B01J31/36 , C07C67/00 , C07C241/00 , C07C263/14 , C07C265/00 , C07C265/12 , C07C265/14

4. 发明专利

JPS63225516A PRODUCTION OF HIGH-PURITY GRANULAR SILICON 失效
公开(公告)号：JPS63225516A
公开(公告)日：1988-09-20
申请号：JP5983887
申请日：1987-03-14
申请人： MITSUI TOATSU CHEMICALS
发明人： ABE TOSHIHIRO , MIYAGAWA HIROJI , IWATA KENJI , IKEDA KEIICHI , OKIMOTO KENJI
IPC分类号： C01B33/02 , C01B33/029
摘要： PURPOSE:To obtain the dense silicon having a low void coefficient and a smooth outer surface, by evenly supplying a fluidization gas to the horizontal cross section of a fluidized-bed reactor packed with silicon crystal grains to fluidize the grains, and supplying silicon hydrides, etc., from the center part. CONSTITUTION:Silicon crystal grains are packed as seeds from a line 4 into the fluidized-bed reactor 6 made of the SiC, quartz, Si3N4, etc., with the contact part with the grains and gases coated with a high-purity silicon layer. A fluidization gas consisting of gaseous H2 and/or an inert gas such as Ar is introduced from a line 1 at the >=1.2 times supply velocity for the minimum fluidization velocity, and evenly supplied through a gas diffusing plate 7 to the horizontal cross section vertical to the gravitational direction to fluidize the grains. The grains are heated to 550-1,000 deg.C by a heater 10, silicon hydrides such as monosilane and/or disilane or the hydrides and gaseous H2 and/or an inert gas are supplied from a line 2 at the center part at the velocity higher than the terminal velocity of the largest silicon crystal grain, a reaction is initiated, and the titled silicon having 500-1,500mu grain diameter is obtained.

5. 发明专利

JPS6342615B2 失效
公开(公告)号：JPS6342615B2
公开(公告)日：1988-08-24
申请号：JP9330880
申请日：1980-07-10
申请人： MITSUI TOATSU CHEMICALS
发明人： TSUMURA RYUICHIRO , TAKAGI USAJI , KASUGA TAKAHARU , IKEDA KEIICHI
IPC分类号： B01J31/22 , B01J31/28

6. 发明专利

JPS62212217A PURIFICATION OF SILICON HYDRIDE 失效
公开(公告)号：JPS62212217A
公开(公告)日：1987-09-18
申请号：JP5266686
申请日：1986-03-12
申请人： MITSUI TOATSU CHEMICALS
发明人： ITO MASAYOSHI , MIYAGAWA HIROJI , ABE TOSHIHIRO , IKEDA KEIICHI , MURAKAMI MASAMI , YANAGAWA NORIYUKI
IPC分类号： C01B33/04
摘要： PURPOSE:To purify silicon hydride having improved adsorptivity, by treating silicon hydride with a zeolite adsorbent, containing PH3 and having specific component constitution. CONSTITUTION:Silicon hydride in a vapor phase state, containing PH3 and expressed by the formula (n is 1-4) is treated with a zeolite adsorbent, containing SiO2 and Al2O3 in constituent components at >=5 molar ratio (SiO2/ Al2O3) of SiO2 to Al2O3, e.g. synthetic (artificial) mordenite type structure of chemical composition expressed by formula II, etc., at -80-+30 deg.C under pressure, etc.

7. 发明专利

JPS61191661A PRODUCTION OF AROMATIC ISOCYANATE 失效
公开(公告)号：JPS61191661A
公开(公告)日：1986-08-26
申请号：JP3055285
申请日：1985-02-20
申请人： MITSUI TOATSU CHEMICALS
发明人： TSUMURA RYUICHIRO , MIYATA KATSUJI , KASUGA TAKAHARU , IKEDA KEIICHI
IPC分类号： C07B61/00 , B01J31/00 , B01J31/02 , B01J31/22 , B01J31/36 , C07C67/00 , C07C241/00 , C07C263/14 , C07C265/00 , C07C265/12 , C07C265/14
摘要： PURPOSE:The reaction between an aromatic nitro compound and carbon monoxide is carried out in the presence of a major catalyst and a cocatalyst of vanadium compound to enable easy and high-yield production of the titled compound which is used a feedstock for polyurethane or agricultural chemicals. CONSTITUTION:When an aromatic isocyanate is produced by reaction between an aromatic nitro compound and carbon monoxide in the presence of a catalyst selected from a mixture of Pd or its mixture with a nitrogen-containing heterocy clic compound, Pd complex containing the said heterocyclic compound as a ligand and a mixture thereof with the said nitrogen-containing heterocyclic compound at elevated temperature and pressure, the reaction is carried out in the presence of an active hydrogen-bearing compound such as HCN, using a cocatalyst which is composed of a phosphorus compound such as PF3, a vanadium compound such as VCl3 and tertiary amine such as triethylamine. The objective compound is obtained by distillation of the reaction mixture.

8. 发明专利

JPS56138159A PREPARATION OF AROMATIC ISOCYANATE 失效
公开(公告)号：JPS56138159A
公开(公告)日：1981-10-28
申请号：JP4019080
申请日：1980-03-31
申请人： MITSUI TOATSU CHEMICALS
发明人： TSUMURA RIYUUICHIROU , TAKAGI USAJI , KASUGA TAKAHARU , IKEDA KEIICHI
IPC分类号： B01J23/00 , B01J23/28 , B01J31/00 , B01J31/22 , C07C67/00 , C07C241/00 , C07C265/00
摘要： PURPOSE:To obtain the titled compound useful as a raw material for polyurethane, by reacting an aromatic nitro compound with CO in the presence of a mixture of a platinum group metallic compound with a heterocyclic aromatic nitrogen compound as a catalyst and Mo as a cocatalyst. CONSTITUTION:An aromatic nitro compound, e.g. nitrobenzene, is reacted with CO in the presence of at least one of catalyst selected from (A) a mixture of a platinum group metallic compound with a heterocyclic aromatic nitrogen compound, (B) a complex of the platinum group metallic compound with the heterocyclic aromatic nitrogen compound and (C) a mixture of the complex with the heterocyclic aromatic nitrogen compound and a heteropoly-acid of Mo, e.g. H4(SiMo12O40), as a cocatalyst to give an aromatic isocyanate in high yield industrially and advantageously. EFFECT:The heteropoly-acid of Mo shows improved effect on the activation and stabilization of the catalyst.

9. 发明专利

JPS54160341A PREPARATION OF AROMATIC ISOCYANATE 失效
公开(公告)号：JPS54160341A
公开(公告)日：1979-12-19
申请号：JP6762978
申请日：1978-06-07
申请人： MITSUI TOATSU CHEMICALS
发明人： TSUMURA RIYUUICHIROU , TAKAGI USAJI , MAZAKI TAKAHARU , IKEDA KEIICHI
IPC分类号： B01J31/00 , B01J31/02 , B01J31/22 , C07C67/00 , C07C241/00 , C07C265/00
摘要： PURPOSE:To obtain the title compound useful as a raw material for polyurethane in high yield, by reacting an aormatic nitro compound with CO in the presence of a catalyst consisting of a halide of a platinum group metal and a cocatalyst of a specific compound oxide at high temperature and pressure. CONSTITUTION:An aromatic nitro compound, e.g. nitrobenzene, is reacted with CO in the presence of a catalyst consisting of a halide of a platinum group metal, e.g. palladium chloride, and a aromatic heterocyclic nitrogen compound, e.g. pyrrole, and/or their complex, e.g. bis (pyridine)-dichloropalladium (X), and a cocatalyst of a compound oxide, e.g. prepared by calcining a mixture of molybdenum trioxide and copper oxide, of the formula CuO.m Mo On (m is 0.1-100; n is 0-3) at 300-1,000 deg.C, at high temperature and presure to give an isocyanate. EFFECT:Prolonged catalyst life, easy catalyst recovery and economical.

10. 发明专利

JPH0770020A PRODUCTION OF AMIDE COMPOUND 失效
公开(公告)号：JPH0770020A
公开(公告)日：1995-03-14
申请号：JP21955893
申请日：1993-09-03
申请人： MITSUI TOATSU CHEMICALS
发明人： YAMAMOTO SADAAKI , FUKADA ISAO , MURAISHI TERUO , IKEDA KEIICHI , TOKUMITSU MASAHIRO
IPC分类号： B01J23/34 , C01G45/02 , C07C231/06 , C07C233/04
摘要： PURPOSE:To provide a process for producing an amide compound on an industrial scale at a low cost by the reaction of a nitrile compound with water in liquid phase while remarkably improving the catalytic activity and life of a manganese oxide to be used in the reaction. CONSTITUTION:An amide compound is produced by reacting a nitrile compound with water in liquid phase in the presence of a catalyst comprising manganese dioxide supported on silica. The manganese dioxide catalyst is produced by baking a manganese compound supported on silica powder in the presence of molecular oxygen, reacting the obtained manganese oxide supported on the silica powder with an aqueous solution of a permanganate and treating the obtained silica powder with an acid.

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