Patents by Inventor Hideki Sugi
Hideki Sugi 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: 8586785Abstract: An object of the present invention is to provide a process for stably producing a catalyst for methacrylic acid production exhibiting high activity and high performance. The process for producing a catalyst for methacrylic acid production of the invention is characterized in that the water content of the catalyst ingredient powder for use in molding, temperature and humidity of a molding step, humidity and temperature of a baking step are individually controlled in the case where molding is performed by a coating method using an Mo—V—P—Cu-based hetero polyacid as an active ingredient and water or an alcohol and/or an aqueous solution of an alcohol as a binder.Type: GrantFiled: November 17, 2011Date of Patent: November 19, 2013Assignee: NipponKayaku KabushikiKaishaInventors: Atsushi Sudo, Kazuo Shiraishi, Hideki Sugi, Hiroyoshi Nowatari, Fumio Sakai, Tomoaki Kobayashi, Tatsuhiko Kurakami
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Publication number: 20120065427Abstract: An object of the present invention is to provide a process for stably producing a catalyst for methacrylic acid production exhibiting high activity and high performance. The process for producing a catalyst for methacrylic acid production of the invention is characterized in that the water content of the catalyst ingredient powder for use in molding, temperature and humidity of a molding step, humidity and temperature of a baking step are individually controlled in the case where molding is performed by a coating method using an Mo—V—P—Cu-based hetero polyacid as an active ingredient and water or an alcohol and/or an aqueous solution of an alcohol as a binder.Type: ApplicationFiled: November 17, 2011Publication date: March 15, 2012Applicant: NIPPONKAYAKU KABUSHIKIKAISHAInventors: Atsushi Sudo, Kazuo Shiraishi, Hideki Sugi, Hiroyoshi Nowatari, Fumio Sakai, Tomoaki Kobayashi, Tatsuhiko Kurakami
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Publication number: 20110137078Abstract: Provided is a catalyst which can prevent a lowering in selectivity for a target product in a gas phase catalytic reaction and has an excellent frictional resistance. A catalyst which is a supported catalyst comprising an inert support that is coated with a catalyst powder, characterized in that the inert support is ring-shaped and has an outer periphery that is curved in the lengthwise direction of the support, and the catalyst is produced by granulation in a moisten environment. The above described catalyst is useful in the gas phase oxidation of propylene, isobutylene, tertiary-butyl alcohol or methyl tertiary-butyl ether to thereby produce an unsaturated aldehyde corresponding thereto, or in the gas phase oxidation of such an unsaturated aldehyde as described above to thereby produce an unsaturated carboxylic acid.Type: ApplicationFiled: May 25, 2009Publication date: June 9, 2011Applicant: NIPPON KAYAKU KABUSHIKI KAISHAInventors: Masaki Nakahara, Hideki Sugi, Yoshimasa Seo, Tatsuhiko Kurakami, Hiroyuki Onoue
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Patent number: 7825061Abstract: The object of the present invention is to provide a catalyst for producing methacrylic acid in high yield and highly selectively by subjecting methacrolein, isobutylaldehyde or isobutyric acid to gas phase catalytic oxidation, and the preparation method thereof. The catalyst contains Mo, V, P, Cu, Cs and NH4 as the essential, active components, and the feature is to use for preparing the catalyst a cesium weak acid salt or cesium hydroxide as the Cs raw material and ammonium acetate as the NH4 raw material. A coated catalyst of the present invention is obtainable by supporting the active component on an inert carrier of alumina or the like.Type: GrantFiled: February 20, 2004Date of Patent: November 2, 2010Assignee: Nippon Kayaku Kabushiki KaishaInventors: Atsushi Sudo, Yoshimasa Seo, Hideki Sugi
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Publication number: 20060154811Abstract: The object of the present invention is to provide a catalyst for producing methacrylic acid in high yield and highly selectively by subjecting methacrolein, isobutylaldehyde or isobutyric acid to gas phase catalytic oxidation, and the preparation method thereof. The catalyst contains Mo, V, P, Cu, Cs and NH4 as the essential, active components, and the feature is to use for preparing the catalyst a cesium weak acid salt or cesium hydroxide as the Cs raw material and ammonium acetate as the NH4 raw material. A coated catalyst of the present invention is obtainable by supporting the active component on an inert carrier of alumina or the like.Type: ApplicationFiled: February 20, 2004Publication date: July 13, 2006Inventors: Atsushi Sudo, Yoshimasa Seo, Hideki Sugi
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Patent number: 6812188Abstract: The present invention relates to a catalyst for producing methacrylic acid by the vapor-phase catalytic oxidation of methacrolein, comprising Mo, V, P and Cu as the indispensable active components, wherein copper acetate is used for all or a part of the necessary amount of a material for said Cu, a coated catalyst and a method for manufacturing the coated catalyst, and methacrolein is reacted in a high conversion and methacrylic acid is produced in a high selectivity by use of the catalyst of the present invention, and the catalyst can be used for reaction under high loading condition.Type: GrantFiled: March 13, 2003Date of Patent: November 2, 2004Assignee: Nippon Kayaku Kabushiki KaishaInventors: Yoshimasa Seo, Atsushi Sudo, Hideki Sugi
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Patent number: 6762148Abstract: An object of the present invention is to provide a catalyst that is highly active and has a large mechanical strength. The catalyst of the present invention contains molybdenum, vanadium, copper and antimony as the essential components, being produced by using antimony acetate for an antimony source material and preferably used for producing acrylic acid by vapor-phase catalytic oxidation of acrolein.Type: GrantFiled: December 17, 2002Date of Patent: July 13, 2004Assignee: Nippon Kayaku Kabushiki KaishaInventors: Junzo Ohishi, Masahiro Senyo, Yoshimasa Seo, Hideki Sugi
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Publication number: 20040029724Abstract: The present invention relates to a catalyst for producing methacrylic acid by the vapor-phase catalytic oxidation of methacrolein, comprising Mo, V, P and Cu as the indispensable active components, wherein copper acetate is used for all or a part of the necessary amount of a material for said Cu, a coated catalyst and a method for manufacturing the coated catalyst, and methacrolein is reacted in a high conversion and methacrylic acid is produced in a high selectivity by use of the catalyst of the present invention, and the catalyst can be used for reaction under high loading condition.Type: ApplicationFiled: March 13, 2003Publication date: February 12, 2004Inventors: Yoshimasa Seo, Atsushi Sudo, Hideki Sugi
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Publication number: 20030109381Abstract: An object of the present invention is to provide a catalyst that is highly active and has a large mechanical strength. The catalyst of the present invention contains molybdenum, vanadium, copper and antimony as the essential components, being produced by using antimony acetate for an antimony source material and preferably used for producing acrylic acid by vapor-phase catalytic oxidation of acrolein.Type: ApplicationFiled: December 17, 2002Publication date: June 12, 2003Inventors: Junzo Ohishi, Masahiro Senyo, Yoshimasa Seo, Hideki Sugi
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Patent number: 5959143Abstract: A catalyst having a high activity and mechanical strength and a process for preparing it are provided. The catalyst comprises molybdenum, vanadium, copper and antimony as essential components. The peak in X-ray diffractometry of the catalytically active component with Cu--K.alpha. line is largest at 22.2.+-.0.30.degree. (2.theta.).Type: GrantFiled: October 30, 1996Date of Patent: September 28, 1999Assignee: Nippon Kayaku Kabushiki KaishaInventors: Hideki Sugi, Fumio Sakai, Koichi Wada, Kazuo Shiraishi, Toshitake Kojima, Atsushi Umejima, Yoshimasa Seo
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Patent number: 5716895Abstract: A simple and excellent process for the regeneration of heteropolyacid catalysts can be provided. A heteropolyacid catalyst, e.g. a phosphomolybdic acid catalyst, whose activity has been lowered can be regenerated by dissolving and/or suspending it in an aqueous medium and then treating with an inorganic ion-exchange material, e.g. crystalline antimonic acid.Type: GrantFiled: June 2, 1997Date of Patent: February 10, 1998Assignee: Nippon Kayaku Kabushiki KaishaInventors: Hideki Sugi, Kazuo Shiraishi, Atsushi Sudo
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Patent number: 4745217Abstract: A catalyst having a heteropoly-acid structure and the general formula:Mo.sub.a V.sub.b P.sub.c Cu.sub.d X.sub.e O.sub.fwherein Mo, V, P, Cu and O represent respectively molybdenum, vanadium, phosphorus, copper and oxygen, X represents one or more elements selected from the group consisting of tin, thorium, germanium, nickel, iron, cobalt, magnesium, zinc, titanium, lead, rhenium, zirconium, and chromium, and a, b, c, d, e and f represent the atomic ratio of the elements where,a is 10b is a number of 3 or less than 3 excluding 0,c is a number of 0.5 to 3,d is a number of 3 or less than 3 excluding 0,e is a number of 3 or less than 3 excluding 0,f is a number determined depending on the valency and atomic ratio of other elements.There is also provided a process for producing methacrylic acid by oxidizing methacrolein with molecular oxygen or molecular oxygen-containing gas in the presence of the catalyst defined above.Type: GrantFiled: May 26, 1983Date of Patent: May 17, 1988Assignee: Nippon Kayaku Kabushiki KaishaInventors: Mutsumi Matsumoto, Hideki Sugi, Atsushi Sudo
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Patent number: 4530916Abstract: A catalyst having heteropoly-acid structure and the general formula:Mo.sub.a V.sub.b P.sub.c Cu.sub.d As.sub.e X.sub.f O.sub.gwherein, X represents one or more elements selected from the group consisting of tin, lead, cerium, cobalt, iron, zirconium, thorium, tungsten, germanium, nickel, rhenium, bismuth, antimony, chromium, boron, magnesium, silver, aluminum, zinc and titanium and a, b, c, d, e, f and g represent the atomic ratio of the elements where,a is 10,b is a number of 3 or less than 3 excluding 0,c is a number of 0.5 to 6,d is a number of 3 or less than 3 excluding 0,e is a number of 3 or less than 3 excluding 0,f is a number of 0 to 3,g is a number determined depending on the valency and atomic ratio of other elements.There is also provided a process for producing methacrylic acid by oxidizing methacrolein with molecular oxygen or molecular oxygen-containing gas in the presence of the catalyst defined above.Type: GrantFiled: November 28, 1983Date of Patent: July 23, 1985Assignee: Nippon Kayaku Kabushiki KaishaInventors: Mutsumi Matsumoto, Hideki Sugi
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Patent number: 4467113Abstract: A catalyst having heteropoly-acid structure and the general formula:Mo.sub.a V.sub.b P.sub.c Cu.sub.d As.sub.e X.sub.f O.sub.gwherein,X represents one or more elements selected from the group consisting of tin, lead, cerium, cobalt, iron, zirconium, thorium, tungsten, germanium, nickel, rhenium, bismuth, antimony, chromium, boron, magnesium, silver, aluminum, zinc and titanium and a, b, c, d, e, f and g represent the atomic ratio of the elements where,a is 10,b is a number of 3 or less than 3 excluding 0,c is a number of 0.5 to 6,d is a number of 3 or less than 3 excluding 0,e is a number of 3 or less than 3 excluding 0,f is a number of 0 to 3,g is a number determined depending on the valency and atomic ratio of other elements.There is also provided a process for producing methacrylic acid by oxidizing methacrolein with molecular oxygen or molecular oxygen-containing gas in the vapor phase in the presence of the catalyst defined above.Type: GrantFiled: November 19, 1979Date of Patent: August 21, 1984Assignee: Nippon Kayaku Kabushiki KaishaInventors: Mutsumi Matsumoto, Hideki Sugi
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Patent number: 4273676Abstract: A catalyst having a heteropoly-acid structure and the general formula:Mo.sub.a V.sub.b P.sub.c Cu.sub.d X.sub.e O.sub.fwherein Mo, V, P, Cu and O represent respectively molybdenum, vanadium, phosphorus, copper and oxygen, X represents one or more elements selected from the group consisting of tin, thorium, germanium, nickel, iron, cobalt, magnesium, zinc, titanium, lead, rhenium, zirconium and chromium and a, b, c, d, e and f represent the atomic ratio of the elements where,a is 10b is a number of 3 or less than 3 excluding 0,c is a number of 0.5 to 3,d is a number of 3 or less than 3 excluding 0,e is a number of 3 or less than 3 excluding 0,f is a number determined depending on the valency and atomic ratio of other elements.There is also provided a process for producing methacrylic acid by oxidizing methacrolein with molecular oxygen or molecular oxygen-containing gas in the presence of the catalyst defined above.Type: GrantFiled: October 5, 1978Date of Patent: June 16, 1981Assignee: Nippon Kayaku Kabushiki KaishaInventors: Mutsumi Matsumoto, Hideki Sugi, Atsushi Sudo
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Patent number: 4172051Abstract: This invention relates to a process and catalyst for producing methacrylic acid by the oxidation of methacrolein. More specifically, it relates to a process for producing methacrylic acid from methacrolein by oxidizing the same with molecular oxygen or molecular oxygen-containing gas, which is characterized by the use of a composition, as a catalyst, having a heteropolyacid structure and the general formula:Mo.sub.a V.sub.b P.sub.c Al.sub.d Y.sub.e O.sub.fwherein Mo, V, P, Al and O represent respectively molybdenum, vanadium, phosphorus, aluminum and oxygen, Y represents one or more elements selected from the groups consisting of copper, tine, cobalt, iron, zirconium, thorium, lead and cerium, and suffixes a, b, c, d, e and f represent the atomic ratio of the elements where, a is 10, b is a number of 3 or less than 3 excluding 0 and, preferably, 0.5 to 2, c is a number of 0.5 to 10 and, preferably, 0.5 to 3, d is a number of 3 or less than 3 excluding 0, preferably, 0.01 to 1.Type: GrantFiled: August 19, 1977Date of Patent: October 23, 1979Assignee: Nippon Kayaku Kabushiki KaishaInventors: Mutsumi Matsumoto, Atsushi Sudo, Hideki Sugi