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公开(公告)号：JP2000126600A
公开(公告)日：2000-05-09
申请号：JP17914599
申请日：1999-06-25
Applicant: INST FRANCAIS DU PETROLE
Inventor： KASZTELAN SLAVIK
IPC: B01J27/04 , B01J27/14 , B01J29/06 , B01J37/20 , C10G45/04 , C10G45/12 , C10G47/06 , C10G49/02 , C10G49/08
Abstract: PROBLEM TO BE SOLVED: To provide a novel catalyst having a polymetallic sulfide phase containing at least one element selected from the elements of group IIIB includ ing sulfur, lanthanoids, and actinoids and group IVB and at least one element selected from the elements of group VIIB and group VIII. SOLUTION: A catalyst has a polymetallic sulfide phase containing at least one element selected from the elements of group IIIB including sulfur, lanthanide, and actinoids and group IVB and at least one element selected from the elements of group VIIB and group VIII. The catalyst can additionaly contain at least one element selected from the group consisting of the elements of group VB and group VIB. The catalyst preferably contains sulfur in an amount more than 40% of the stoichiometric amount of sulfur in the polymetallic sulfide of group IIIB, group IVB, group VIIB, and group VIII.
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公开(公告)号：JPH11292814A
公开(公告)日：1999-10-26
申请号：JP10258498
申请日：1998-04-14
Applicant: DAINIPPON INK & CHEMICALS
Inventor： OKIHAMA MARIKO
IPC: B01J27/04 , B01J27/055 , B01J27/122 , B01J31/04 , C07B61/00 , C07C37/11 , C07C37/72 , C07C39/14 , C07C39/15
Abstract: PROBLEM TO BE SOLVED: To obtain the subject compound in a high yield by performing an oxidative coupling reaction of phenols in the presence of an organic fatty acid metal salt or a catalyst loaded with an inorganic salt and a specific hydrocarbon. SOLUTION: This method for producing biphenols is provided by performing an oxidative coupling reaction of (A) phenols (e.g.; 2,6-di-t-butylphenol) in the presence of (B) (i) preferably an organic fatty acid metal salt (copper naphthenate, iron naphthenate, etc.), consisting of a metal soap or (ii) a catalyst loaded with an inorganic salt [e.g.; alumina-loaded cupric(II)sulfate] and (C) an 8-15C branched aliphatic hydrocarbon or linear aliphatic hydrocarbon as a solvent (isododecane, n-undecane, etc.), at preferably 60-300 deg.C. In the above reaction, it is preferable to use 1-5 pt.wt. component (C) based on the component (A), and 0.005-80 mol.% component (B) (i) and 0.01-80 mole% component (B) (ii) based on the transition metal atom.
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45.发明专利
公开(公告)号：JPH11169726A
公开(公告)日：1999-06-29
申请号：JP24001098
申请日：1998-08-26
Applicant: TOTO LTD
Inventor： KUGA TATSUHIKO , KOBAYASHI HIDENORI , SAEKI YOSHIMITSU
IPC: C04B41/86 , B01J21/04 , B01J21/06 , B01J23/02 , B01J23/06 , B01J23/12 , B01J23/14 , B01J23/38 , B01J23/70 , B01J27/04 , B01J27/053 , B01J27/14 , B01J35/02
Abstract: PROBLEM TO BE SOLVED: To improve the photocatalytic activity by depositing a noble metal on photocatalytic active points or near the points. SOLUTION: A metal promoting photocatalytic activity in a solution of a salt of the metal is added to and mixed with a suspension solution of a photocatalytic particle and on the completion of the mixing or simultaneously with the mixing, ultraviolet rays are radiated to the mixed solution to generate electrons in the photoactive points of the photocatalyst particle and the added metal or its compound is reduced and precipitated on the photoactive points or near the points by the electrons.
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Patent Agency Ranking
公开(公告)号：JP2840752B2
公开(公告)日：1998-12-24
申请号：JP8021089
申请日：1989-03-29
Inventor： JORUJU BEREBI , PIEERU DEYUFURENU
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公开(公告)号：JPH10231298A
公开(公告)日：1998-09-02
申请号：JP3670797
申请日：1997-02-20
Applicant: SUMITOMO CHEMICAL CO
Inventor： HIRATA NORIHIKO , MIYAMOTO YASUNOBU , TAKAHASHI TOSHIYA
IPC: C07D495/04 , B01J27/04 , C07B61/00
Abstract: PROBLEM TO BE SOLVED: To obtain the subject compound, useful as an intermediate or the like for biotin or the like in an industrially advantageous way, by reacting a hexahydrofuro[3,4-d]imidazol-2,4-dione with a thioamide in the presence of hydrogen sulfide and a base. SOLUTION: This compound, i.e., a hexahydrothieno[3,4-d]imidazol-2,4-dione shown by formula II, useful as an intermediate or the like for biotin (vitamin H) or the like, is obtained by reacting a hexahydrofuro[3,4-d]imidazol-2,4-dione shown by formula I (R is an alkyl, an alkenyl, an aryl or an aralkyl, wherein each of these groups may be substituted with an alkyl, an alkoxyl, nitro or a halogen), e.g. cis-1,3-dibenzylhexahydrofuro[3,4-d]imidazol-2,4-dione, with a thioamide (e.g. thiobenzamide) in the presence of hydrogen sulfide and a basic substance (e.g. sodium acetate).
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公开(公告)号：JPH10226790A
公开(公告)日：1998-08-25
申请号：JP33524097
申请日：1997-12-05
Applicant: AMOCO CORP
Inventor： JEFFREY T MILLER , RONALD B FISCHER , TRACEY L MARSHBANKS
Abstract: PROBLEM TO BE SOLVED: To provide a novel catalyst and method necessary for forming a lightweight and more valuable product from a heavy hydrocarbon feedstock such as a residual oil. SOLUTION: Metal-impregnated carbonaceous particles having effective particle sizes in suspension of 0.01-50μm and physically carrying a sulfide of a water-soluble metal compd. contg. a sulfidizable metal selected from among molybdenum, cobalt, nickel, iron, vanadium, tungsten, and their mixtures are suspended in a reaction zone contg. hydrogen and a hydrocarbon feed material to give a dispersion; such conditions of the reaction zone as to be effective for converting the feedstock into a product having a b.p. lower than that of the feedstock are maintained; and the product having the lower b.p. is recovered.
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公开(公告)号：JPH10139726A
公开(公告)日：1998-05-26
申请号：JP7574197
申请日：1997-03-27
Applicant: IND TECH RES INST
Inventor： GO KOKUKYO , RIN BUNKI , KO KEIKI , CHIN HAKUU
Abstract: PROBLEM TO BE SOLVED: To provide a production method for esterified product(s), capable of greatly improving yield, decreasing waste disposal problems and production cost. SOLUTION: This method relates to the production of esterified products containing at least one kind of carboxylic ester from esterifying reactants comprising an alcohol, and an carboxylic acid or an carboxylic anhydride, its process consisting of (a) putting the esterifying reactants into a fixed bed type reactor under specified reaction conditions and (b) reacting the esterifying reactants in the fixed bed type reactor, (c) the above fixed bed type reactor containing a solid acid catalyst, and (d) the reaction conditions being controlled so that (i) the reactants and products can coexist in a gas-liquid two-phase equilibrium state in the fixed bed type reactor and (ii) at least one kind of reactant component forms one phase and at least one kind of product component forms the other phase.
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公开(公告)号：JPH1037024A
公开(公告)日：1998-02-10
申请号：JP18606496
申请日：1996-07-16
Applicant: KAGAKU GIJUTSU SHINKO JIGYODAN
Inventor： MOTOJIMA SEIJI
Abstract: PROBLEM TO BE SOLVED: To provide a method for producing coil-like carbon fibers, suitable for improving the production yield, and to provide a device for producing the same. SOLUTION: This method for producing coil-like carbon fibers comprises pyrolyzing acetylene gas containing a fine amount of sulfur compounds such as thiophene or phosphorus compounds such as phosphorus trichloride in the presence of one or more kinds of catalyst selected from the group consisting of the oxides, carbides, sulfides, phosphites, carbonates and carbosulfides of transition metals in a temperature range of 600-850 deg.C in a gaseous phase.
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