Patents by Inventor Kiyoshi Moriya
Kiyoshi Moriya has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 5877381Abstract: The present invention provides a fluidized bed catalyst for the synthetic reaction of organic compounds which has a reduced catalyst loss. A fluidized bed catalyst for organic compound synthetic reaction, characterized in that 90% or more of the catalyst particles is in the range of 5-500 .mu.m on the weight-based particle size distribution and 90% or more of the 20-75 .mu.m particles has a crushing strength which satisfies the following equation:CS>A.multidot.d.sub..alpha.wherein CS represents a crushing strength ?g-weight/particle!,A represents a constant 0.001,d represents a particle diameter ?.mu.m!, and.alpha. represents a constant 2.Type: GrantFiled: July 1, 1996Date of Patent: March 2, 1999Assignee: Nitto Kagaku Kogyo Kabushiki KaishaInventors: Yutaka Sasaki, Hiroshi Yamamoto, Kiyoshi Moriya, Yoshimi Nakamura
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Patent number: 5132269Abstract: An iron-antimony-molybdenum-containing oxide catalyst composition for oxidation reactions, comprising a crystalline iron antimonate having a crystallite size of 100 .ANG. or more, said catalyst being represented by the following empirical formula:Fe.sub.a Sb.sub.b Mo.sub.c L.sub.d K.sub.e M.sub.m N.sub.n Q.sub.q R.sub.r T.sub.t O.sub.Type: GrantFiled: September 9, 1991Date of Patent: July 21, 1992Assignee: Nitto Chemical Industry Co., Ltd.Inventors: Yutaka Sasaki, Hiroshi Yamamoto, Koichi Mizutani, Kiyoshi Moriya, Kunio Mori
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Patent number: 5102918Abstract: A modified organic polyisocyanate is prepared in such a manner that a trimerization catalyst, an organic phosphite estr, and a surfactant, and optionally a ferrocene compound are added to an organic isocyanate and/or a partially urethanized organic polyisocyanate to cause isocyanuration in an extent that not more than 20% by weight of entire isocyanate groups are isocyanurated; and a stopper is added, if necessary.Type: GrantFiled: January 9, 1991Date of Patent: April 7, 1992Assignee: Nippon Polyurethane Industry Co., Ltd.Inventor: Kiyoshi Moriya
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Patent number: 5071814Abstract: A process for producing a molybdenum bismuth-containing metal oxide catalyst comprising: mixing(I) a metal element-containing slurry which contains molybdenum and at least one metal element selected from the group consisting of Fe, Ni, Co, Mg, Cr, Mn, Zn, Pb, La and Ce and which has a pH of 6 or above with(II) a bismuth compound, a solution thereof or a slurry thereof; and then drying and calcining the mixture obtained.Type: GrantFiled: March 22, 1990Date of Patent: December 10, 1991Assignee: Nitto Chemical Industry Co., Ltd.Inventors: Yutaka Sasaki, Kunio Mori, Kiyoshi Moriya
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Patent number: 5059573Abstract: A process for producing a molybdenum-containing metal oxide fluid-bed catalyst comprising, as essential components,(i) at least one element selected from the group consisting of iron, bismuth, and tellurium,(ii) molybdenum, and(iii) silica,which comprises (a) adjusting an aqueous slurry containing a raw material providing element (i), a molybdenum compound, a silica sol, and a chelating agent capable of inhibiting gelation of the slurry of a pH of at least 6, or (b) adjusting an aqueous slurry containing a raw material providing element (i), a molybdenum compound and a chelating agent capable of inhibiting gelation to a pH of at least 6 and mixing the slurry with a silica sol,then spray drying the thus pH-adjusted aqueous slurry, andcalcining the resulting particles.Type: GrantFiled: February 15, 1990Date of Patent: October 22, 1991Assignee: Nitto Chemical Industry Co., Ltd.Inventors: Yutaka Sasaki, Kunio Mori, Kiyoshi Moriya
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Patent number: 4978765Abstract: A process for the production of acrylonitrile by vapor phase catalytic ammoxidation of propylene in a fluidized bed at high yield with the use of a multicompenent fluidized bed catalyst comprising molybdenum, bismuth, iron, antimony, nickel and alkali metal(s) each carried by silica, which has a high catalytic activity and a high attrition resistance and which does not require any expensive cobalt catalytic component.Type: GrantFiled: April 14, 1989Date of Patent: December 18, 1990Assignee: Nitto Chemical Industry Co., LtdInventors: Yutaka Sasaki, Kunio Mori, Kiyoshi Moriya
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Patent number: 4965393Abstract: A process for producing acrylonitrile by the vapor-phase catalytic ammoxidation of propylene using a catalyst whose composition is represented by the empirical formula (I):P.sub.q R.sub.r Mo.sub.10 Bi.sub.a Fe.sub.b Sb.sub.c Ni.sub.d O.sub.e (I)whereR is Na and/or K;subscripts q, r, a, b, c, d and e represent atomic ratios, and when the atomic ratio of Mo is 10, q=0 to 3, r=0.01 to 1.5, a=0.1 to 3, b=0.1 to 2.5, c=5 to 30, d=4 to 8, and e=a number corresponding to the oxide formed by chemical combination of the above-described components.Type: GrantFiled: March 3, 1989Date of Patent: October 23, 1990Assignee: Nitto Chemical Industry Co., Ltd.Inventors: Yutaka Sasaki, Kunio Mori, Kiyoshi Moriya
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Patent number: 4590175Abstract: A process for the production of antimony-containing metal oxide catalysts, comprising preparing a slurry containing as essential components an antimony component, a polyvalent metal compound, and silica sol, heating and drying the slurry to form a solid product, and then calcining the solid product, wherein the antimony component is a mixture of (A) at least one of antimonic acid, polyantimonic acid and the salts thereof and (B) antimony trioxide, and is prepared by mixing (A) and (B) in such a manner that the antimony provided by the (B) constitutes from 0.1 to 70 atomic % of the total amount of antimony and further in an aqueous slurry state. These antimony-containing metal oxide catalysts have superior activity and physical properties, and further reproducibility in the preparation thereof. Thus they are useful for production of aldehydes and acids through oxidation, nitriles through ammoxidation, and dienes, unsaturated aldehydes and unsaturated acids through oxidative dehydrogenation.Type: GrantFiled: September 28, 1984Date of Patent: May 20, 1986Assignee: Nitto Chemical Industry Co., Ltd.Inventors: Yutaka Sasaki, Hiroshi Utsumi, Kunio Mori, Hiroshi Yamamoto, Yoshimi Nakamura, Kiyoshi Moriya, Akimitsu Morii, Mikio Noda, Miki Kunitani
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Patent number: 4419267Abstract: A process for regenerating an antimony containing metal oxide catalyst which comprisesimpregnating aqueous ammonia in an amount corresponding to the pore volume of the catalyst, to a metal oxide catalyst whose activity has been deteriorated, the catalyst containing an essential components (A) antimony, (B) at least one element selected from the group consisting of iron, cobalt, nickel, manganese, uranium, cerium, tin and copper, (C) at least one element selected from the group consisting of vanadium, molybdenum and tungsten and (D) tellurium,drying the catalyst, andcalcining the catalyst in a non-reducing atmosphere at a temperature in the range of about 550.degree. C. to about 950.degree. C.Type: GrantFiled: May 22, 1981Date of Patent: December 6, 1983Assignee: Nitto Chemical Industry Co., Ltd.Inventors: Yutaka Sasaki, Kunio Mori, Kiyoshi Moriya, Hiroshi Utsumi
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Patent number: 4410450Abstract: A process for producing a fluid catalyst having good activity from a coarse catalyst wherein said fluid catalyst is suitable for oxidation, ammoxidation or oxidative dehydrogenation reaction of hydrocarbons which comprises crushing a fluid catalyst, a greater part of which is composed of particles having a large particle size, to produce finely-divided particles, adjusting the distribution of particle size of said catalyst so that the amount of particles of a size of about 20.mu. or less is about 30% by weight or less of the total weight of catalyst particles and the amount of particles having a weight average particle size is 90% or less based on the catalyst prior to crushing, and thereafter calcining said catalyst at a temperature of about 500.degree. C. - about 1000.degree. C. under a non-reducing atmosphere.Type: GrantFiled: June 29, 1981Date of Patent: October 18, 1983Assignee: Nitto Chemical Industry Co., Ltd.Inventors: Yutaka Sasaki, Kunio Mori, Kiyoshi Moriya
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Patent number: 4370279Abstract: A process for producing acrylonitrile by the vapor-phase catalytic ammoxidation of propylene, which comprises(I) reacting propylene, a molecular oxygen-containing gas and ammonia in the presence of a catalyst expressed by the following empirical formulaFe.sub.a Sb.sub.b Mo.sub.c Me.sub.d Te.sub.e Q.sub.f Na.sub.g O.sub.h. (SIO).sub.iwherein Me is at least one element selected from the group consisting of V and W,Q is at least one element selected from the group consisting of Cu, Mg, Zn and Ni, andthe subscripts a, b, c, d, e, f, g, h and i each represents atomic ratios such that when a=10; b=13 to 28; c=0.1 to 2.5; d=0.05 to 1; e=0.2 to 5; f=0 to 4 (in which case b=13 to 20), or f=2 to 6 (in which case b=20 to 28); g=0 to 3; h=the number of oxygens corresponding to the oxide formed by the combination of the components, and i=25 to 200;in a fluidized bed catalytic reaction zone at a temperature of about 380 to about 500.degree. C. and a pressure of about 0.2 to about 3 kg/cm.sup.Type: GrantFiled: September 11, 1978Date of Patent: January 25, 1983Assignee: Nitto Chemical Industry Co., Ltd.Inventors: Yutaka Sasaki, Tomio Nakamura, Yoshimi Nakamura, Kiyoshi Moriya, Hiroshi Utsumi, Shigeru Saito
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Patent number: 4324586Abstract: A tellurium component is separated from a tellurium-antimony-containing metal oxide catalyst by heating the catalyst at a temperature of about 900.degree. C. to about 1,000.degree. C. in a non-reducing atmosphere.Type: GrantFiled: September 25, 1980Date of Patent: April 13, 1982Assignee: Nitto Chemical Industry Co., Ltd.Inventors: Yutaka Sasaki, Kiyoshi Moriya
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Patent number: 4311611Abstract: A process for regenerating a deteriorated antimony containing oxide catalyst comprising as essential components of (i) antimony and (ii) at least one metal element selected from the group consisting of iron, cobalt, nickel, manganese, uranium, cerium, tin and copper wherein the deteriorated antimony containing oxide catalyst is impregnated or sprayed with an aqueous hydrogen peroxide solution and the impregnated catalyst is dried and then calcined at a temperature of about 200.degree. to 1,000.degree. C.Type: GrantFiled: December 4, 1979Date of Patent: January 19, 1982Assignee: Nitto Chemical Industry, Co., Ltd.Inventors: Yutaka Sasaki, Kiyoshi Moriya, Yoshimi Nakamura
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Patent number: 4083804Abstract: A process for preparing acrylonitrile from propylene, which comprises contacting a mixture of propylene, molecular oxygen and ammonia in the vapor phase at a temperature of about 380.degree. to about 500.degree. C. and a pressure of about atmospheric pressure to about 3 Kg/cm.sup.2 -G with a catalyst composition comprising active components of the following empirical formulaFe.sub.a Sb.sub.b Me.sub.c Te.sub.d Q.sub.e R.sub.f O.sub.gwherein Me is at least one element selected from the group consisting of V, Mo and W; Q is at least one element selected from the group consisting of Cu, Mg, Zn, La, Ce, Al, Cr, Mn, Cor, Ni, Bi and Sn; and R is at least one element selected from the group consisting of P and B; a, b, c, d, e, f and g each represents atomic ratios, and when a is 10, 15.ltoreq. b .ltoreq.60, 1 <c .ltoreq.10, 0.5.ltoreq.d.ltoreq.10, 0.1.ltoreq.e.ltoreq.10, 0.ltoreq.f.ltoreq.Type: GrantFiled: June 3, 1976Date of Patent: April 11, 1978Assignee: Nitto Chemical Industry Co., Ltd.Inventors: Shigeru Saito, Yutaka Sasaki, Tomio Nakamura, Kiyoshi Moriya, Yoshimi Nakamura, Hiroshi Utsumi
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Patent number: 4049575Abstract: A process for producing a catalyst comprising an antimony-containing oxide which comprises the steps of (A) calcining a mixture of metal oxides containing, as essential components, an oxide of antimony and an oxide of at least one metal selected from the group consisting of iron, cobalt, nickel, manganese, uranium, tin and copper, said calcining being at temperatures of from about 500.degree. C to about 1000.degree.Type: GrantFiled: July 31, 1975Date of Patent: September 20, 1977Assignee: Nitto Chemical Industry Co., Ltd.Inventors: Yutaka Sasaki, Akimitsu Morii, Yoshimi Nakamura, Kiyoshi Moriya, Hiroshi Utsumi
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Patent number: 3988359Abstract: A process for preparing acrylonitrile from propylene, which comprises contacting a mixture of propylene, molecular oxygen and ammonia in the vapor phase at a temperature of about 380.degree. to about 500.degree. C. and a pressure of about atmospheric pressure to about 3 Kg/cm.sup.2 -G with a catalyst composition comprising active components of the following empirical formulaFe.sub.a Sb.sub.b Me.sub.c Te.sub.d Q.sub.e R.sub.f O.sub.gwhereinMe is at least one element selected from the group consisting of V, Mo and W; Q is at least one element selected from the group consisting of Cu, Mg, Zn, La, Ce, Al, Cr, Mn, Co, Ni, Bi and Sn; and R is at least one element selected from the group consisting of P and B; a, b, c, d, e, f and g each represents atomic ratios, and when a is 10, 15.ltoreq. b .ltoreq.60, 1<c .ltoreq.10, 0.5.ltoreq. d .ltoreq.10, 0.1.ltoreq. e .ltoreq.10, 0.ltoreq. f .ltoreq.Type: GrantFiled: February 10, 1975Date of Patent: October 26, 1976Assignee: Nitto Chemical Industry Co., Ltd.Inventors: Shigeru Saito, Yutaka Sasaki, Tomio Nakamura, Kiyoshi Moriya, Yoshimi Nakamura, Hiroshi Utsumi