And Bismuth Containing Patents (Class 502/212)
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Patent number: 11007506Abstract: The present invention relates to a process for producing mixed oxide catalysts on the basis of molybdenum and bismuth oxides in which the precursor compounds of the components of mixed oxide catalysts provided in the form of a solution and/or suspension are subjected to a spray-drying with a specific temperature regime and the spray particles obtained in this way are then calcined to yield a catalytic active mass, and to the mixed oxide catalysts obtainable by this process and to the use of these catalysts in the partial oxidation of olefins, in particular in the partial gas phase oxidation of propene to acrolein and acrylic acid. The spray drying of the precursor compounds containing solution or suspension is performed in concurrent with a gas stream having a specific entrance temperature. Alternatively, when the main gas stream has a higher entrance temperature, an additional colder gas stream can be fed in downstream.Type: GrantFiled: July 19, 2016Date of Patent: May 18, 2021Assignee: Evonik Operations GmbHInventors: Achim Fischer, Axel Mescher, Harald Jakob
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Patent number: 10940464Abstract: The present invention clarifies the characteristic of the hygroscopicity of the catalyst for producing acrylic acid and finds out a relationship between the water amount of the catalyst and the catalytic performance as the catalyst for producing acrylic acid, and provides an excellent catalyst. Provided is a catalyst for producing acrylic acid, which contains molybdenum and vanadium as essential active components, in which the amount of water contained in the catalyst is 0.01 mass % or more and 0.53 mass % or less.Type: GrantFiled: September 11, 2017Date of Patent: March 9, 2021Assignee: NIPPON KAYAKU KABUSHIKI KAISHAInventors: Kouichi Tamura, Tatsuhiko Kurakami
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Patent number: 9884315Abstract: Disclosed are a composite oxide catalyst for preparing butadiene and a method of preparing the same. More particularly, a composite oxide catalyst, for preparing butadiene, including a metal composite oxide and AlPO4, and a method of preparing the same are disclosed. According to the present disclosure, a composite oxide catalyst for preparing butadiene, which includes a specific binder material, prevents generation of ingredients with a high boiling point, has superior catalyst strength, catalytic activity and butadiene yield, and a method of preparing the same are provided.Type: GrantFiled: August 24, 2015Date of Patent: February 6, 2018Assignee: LG CHEM, LTD.Inventors: Myung Ji Suh, Kyong Yong Cha, Dae Heung Choi, Ye Seul Hwang, Dong Hyun Ko
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Patent number: 8993473Abstract: Embodiments of the present invention include improved shaped catalyst structures containing catalytic material comprised of mixed oxides of vanadium and phosphorus and using such shaped catalyst structures for the production of maleic anhydride.Type: GrantFiled: October 7, 2009Date of Patent: March 31, 2015Assignee: Huntsman Petrochemical LLCInventors: Larry E. Melde, William A. Smith
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Patent number: 8865614Abstract: A process for producing a ringlike oxidic shaped body by mechanically compacting a pulverulent aggregate introduced into the fill chamber of a die, wherein the outer face of the resulting compact corresponds to that of a frustocone.Type: GrantFiled: February 28, 2013Date of Patent: October 21, 2014Assignee: BASF SEInventors: Knut Eger, Jens Uwe Faust, Holger Borchert, Ralf Streibert, Klaus Joachim Mueller-Engel, Andreas Raichle
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Patent number: 8658558Abstract: In a process for forming a bulk hydroprocessing catalyst by sulfiding a catalyst precursor made in a co-precipitation reaction, up to 60% of the metal precursor feeds do not react to form catalyst precursor and end up in the supernatant. In the present disclosure, the metals can be recovered in an electro-coagulation reactor, wherein portion of the metal residuals in the supernatant reacts with the electrodes to form a slurry containing insoluble metal compounds. The insoluble metal compounds are isolated and recovered, forming an effluent stream. The insoluble metal compounds and/or the effluent stream can be further treated to form at least a metal precursor feed which can be used in the co-precipitation reaction.Type: GrantFiled: October 18, 2011Date of Patent: February 25, 2014Assignee: Chevron U.S.A. Inc.Inventors: Theodorus Maesen, Alexander E. Kuperman, Dennis Dykstra
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Patent number: 8586499Abstract: A method for producing a catalyst for the preparation of methacrylic acid comprising a heteropolyacid compound containing phosphorus, molybdenum and an element X selected from the group consisting of potassium, rubidium, cesium and thallium and having an atomic ratio of the element X to molybdenum of 0.5:12 to 2:12, which method comprises the steps of mixing aqueous slurry A containing starting compounds of the heteropolyacid compound in which an atomic ratio of the element X to molybdenum is from 2:12 to 4:12, and aqueous slurry B containing starting compounds of the heteropolyacid compound in which an atomic ratio of the element X to molybdenum is from 0:12 to 0.5:12 to form a slurry mixture; heat-treating the slurry mixture at a temperature of 100° C. or higher; drying the slurry mixture; and calcining the dried mixture.Type: GrantFiled: October 26, 2010Date of Patent: November 19, 2013Assignee: Sumitomo Chemical Company, LimitedInventors: Toshiaki Miyatake, Junji Shibata, Eiichi Shiraishi
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Patent number: 8481448Abstract: The invention is a heteropoly acid compound catalyst composition, a method of making the catalyst composition and a process for the oxidation of saturated and/or unsaturated aldehydes to unsaturated carboxylic acids using the catalyst composition. The catalyst composition is a heteropoly acid compound containing molybdenum, vanadium, phosphorus, cesium, bismuth, copper and antimony. Thermal stability is achieved with higher cesium content (up to less than 3.0) but antimony, copper and bismuth must be present to maintain good activity. The catalyst is made by dissolving compounds of the components of each of the heteropoly acid compounds in a solution, precipitating the heteropoly acid compounds, obtaining a catalyst precursor and calcining the catalyst precursor to form a heteropoly acid compound catalyst. Unsaturated aldehydes, such as methacrolein, may be oxidized in the presence of the heteropoly acid compound catalyst to produce an unsaturated carboxylic acid, such as methacrylic acid.Type: GrantFiled: July 19, 2010Date of Patent: July 9, 2013Assignee: Saudi Basic Industries CorporationInventors: Wugeng Liang, David Sullivan, James W. Kauffman, Clark Rea, Joe Linzer, Shahid Shaikh
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Patent number: 8481790Abstract: A method of preparing a catalyst for producing acrolein by oxidation of propylene at high space velocity, said catalyst is a Mo—Bi—Fe—Co based composite metal oxide. Producing unsaturated aldehyde via partial oxidation of lower unsaturated olefin at high space velocity using said catalyst is suitable for process with or without off-gas recirculating. Said catalyst is prepared by co-precipitation, the reaction conditions for using said catalyst to produce unsaturated aldehyde are, the space velocity of unsaturated lower olefin relative to catalyst being 120˜200 h-1(STP), reaction temperature being 300˜420° C. and absolute pressure being 0.1˜0.5 MPa; a single-stage unsaturated lower olefin conversion ratio of greater than 98.0% and carbon oxide yield of less than 3.3% with an overall yield of unsaturated lower aldehyde and acid of greater than 94.0% are obtained. The process to prepare the said catalyst is simple, easy to be repeated, and capable of industrial scale-up.Type: GrantFiled: May 26, 2011Date of Patent: July 9, 2013Assignee: Shanghai Huayi Acrylic Acid Co., Ltd.Inventors: Jian Wang, Xuemei Li, Yan Zhuang, Kaimin Shi, Kun Jiao, Jianxue Ma, Xiaodong Chu, Jingming Shao
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Patent number: 8415268Abstract: A process for producing a ringlike oxidic shaped body by mechanically compacting a pulverulent aggregate introduced into the fill chamber of a die, wherein the outer face of the resulting compact corresponds to that of a frustocone.Type: GrantFiled: June 30, 2009Date of Patent: April 9, 2013Assignee: BASF SEInventors: Knut Eger, Jens Uwe Faust, Holger Borchert, Ralf Streibert, Klaus Joachim Mueller-Engel, Andreas Raichle
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Patent number: 8410013Abstract: Provided is a catalyst for treating exhaust gas capable of reducing the amount of a highly corrosive mercury-chlorinating agent to be added while keeping the mercury oxidation efficiency high in an exhaust gas treatment. By the catalyst for treating exhaust gas, nitrogen oxide in the exhaust gas is removed upon contact with ammonia serving as a reducing agent, and mercury is oxidized using a halogen serving as an oxidant. The catalyst includes: TiO2 as a support; an oxide of at least one selected from the group consisting of V, W and Mo, which is supported as an active component on the support; and at least one selected from the group consisting of Bi, P, and compounds containing Bi and/or P, which is supported as a co-catalyst component on the support.Type: GrantFiled: February 26, 2009Date of Patent: April 2, 2013Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Katsumi Nochi, Yoshiaki Obayashi, Masashi Kiyosawa
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Publication number: 20120283088Abstract: The invention relates to mixed oxide catalysts made of hollow shapes for the catalytic gas phase oxidation of olefins, and to a method for producing the catalysts by applying them as a layer to a carrier made of organic material and removing said organic material. The reaction into aldehydes and carboxylic acids occurs by air or oxygen in the presence of inert gases in different quantity ratios, at elevated temperatures and pressure in the presence of said catalysts.Type: ApplicationFiled: June 8, 2012Publication date: November 8, 2012Applicant: Evonik Degussa GmbhInventors: Achim FISCHER, Werner BURKHARDT, Stefan RÖDER, Klaus HUTHMACHER
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Patent number: 8242043Abstract: A process for production of a supported catalyst that, when used for production of lower aliphatic carboxylic acids from oxygen and lower olefins, improves yields of the lower aliphatic carboxylic acids and minimizes production of carbon dioxide gas (CO2) by-product compared to the prior art. A compound comprising at least one element selected from elements of Groups 8, 9 and 10 of the Periodic Table, at least one chloride of an element selected from copper, silver and zinc, and a chloroauric acid salt, are loaded on a carrier, after which there are further loaded a compound comprising at least one element selected from gallium, indium, thallium, germanium, tin, lead, phosphorus, arsenic, antimony, bismuth, sulfur, selenium, tellurium and polonium, and a heteropoly acid.Type: GrantFiled: June 4, 2007Date of Patent: August 14, 2012Assignee: Showa Denko K.K.Inventor: Atsuyuki Miyaji
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Patent number: 8232224Abstract: Methods for preparing catalysts for oxidation of unsaturated and/or saturated aldehydes to unsaturated acids is disclosed where the catalyst includes at least molybdenum (Mo), phosphorus (P), vanadium (V), bismuth (Bi), where the bismuth component was dissolved in an organic acid solution prior to adding the bismuth containing solution to a solution of the other components.Type: GrantFiled: November 18, 2010Date of Patent: July 31, 2012Assignee: Saudi Basic Industries CorporationInventors: Wugeng Liang, Scott A. Stevenson, Angie McGuffey
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Patent number: 8207080Abstract: The invention concerns a compound comprising a combination of two crystal phases. The first crystal phase corresponds to the formula: AaEbVcModPeOfHg wherein A is an alkali-metal; E is Te, Sb or Bi; and 0?a?3, 0<b?3, 0?c?3, 0<d?13, 0<e?2, 0?g?3. The second crystal phase corresponds to the formula ZgMohXiOj wherein: Z is selected among trivalent rare earths; X is selected among the elements V, Ga, Fe, Bi, Ce, Ti, Sb, Mn, Zn, Te; and 0<g?3, 0?h?3, 0?i?1. The indices f and j represent the number of oxygen atoms required for satisfying the relative valency and atomic proportions of the elements present. The invention also concerns the method for preparing said compound, and its use in particular as catalyst for oxidizing alkanes.Type: GrantFiled: February 14, 2007Date of Patent: June 26, 2012Assignee: Centre National de la Recherche Scientifique (C.N.R.S.)Inventors: Jean-Marc Millet, Phillippe Lacorre, Quyen Huynh
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Patent number: 8114805Abstract: The present invention relates to a method of preparing a heteropoly acid catalyst used for the production of methacrylic acid by gas phase oxidation of methacrolein, more precisely a method of preparing a heteropoly acid catalyst comprising the steps of preparing a slurry by adding metal precursors and ammonium salt to protonic acid Keggin-type heteropoly acid aqueous solution and stirring thereof; and drying, molding and firing the slurry to give a catalyst. The present invention provides a method of preparing a heteropoly acid catalyst exhibiting high methacrolein conversion rate and methacrylic acid selectivity without pre-firing process by using high purity protonic acid Keggin-type heteropoly acid and ammonium salt.Type: GrantFiled: June 13, 2008Date of Patent: February 14, 2012Assignee: LG Chem, Ltd.Inventors: Hyun-Kuk Noh, Hyun-jong Shin, Won-ho Lee, Byung-yul Choi, Gyo-hyun Hwang, Ju-yeon Park, Duk-ki Kim, Young-hyun Choe, Min-ho Kil, Min-suk Kim, Young-jin Cho, Sung-chul Lim
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Publication number: 20110295041Abstract: A method of preparing a catalyst for producing acrolein by oxidation of propylene at high space velocity, said catalyst is a Mo—Bi—Fe—Co based composite metal oxide. Producing unsaturated aldehyde via partial oxidation of lower unsaturated olefin at high space velocity using said catalyst is suitable for process with or without off-gas recirculating. Said catalyst is prepared by co-precipitation, the reaction conditions for using said catalyst to produce unsaturated aldehyde are, the space velocity of unsaturated lower olefin relative to catalyst being 120˜200 h-1(STP), reaction temperature being 300˜420° C. and absolute pressure being 0.1˜0.5 MPa; a single-stage unsaturated lower olefin conversion ratio of greater than 98.0% and carbon oxide yield of less than 3.3% with an overall yield of unsaturated lower aldehyde and acid of greater than 94.0% are obtained. The process to prepare the said catalyst is simple, easy to be repeated, and capable of industrial scale-up.Type: ApplicationFiled: May 26, 2011Publication date: December 1, 2011Applicant: Shanghai HuaYi Acrylic Acid Co. Ltd.Inventors: Jian Wang, Xuemei Li, Yan Zhuang, Kaimin Shi, Kun Jiao, Jianxue Ma, Xiaodong Chu, Jingming Shao
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Patent number: 8053386Abstract: The present invention relates to a heteropoly acid catalyst which is used for the production of methacrylic acid by gas phase oxidation of methacrolein and a preparing method thereof. The present invention, thereby, provides a novel heteropoly acid catalyst having excellent methacrolein conversion rate, methacrylic acid selectivity and yield.Type: GrantFiled: November 29, 2007Date of Patent: November 8, 2011Assignee: LG Chem, Ltd.Inventors: Gyo-hyun Hwang, Min-ho Kil, Hyun-kuk Noh, Won-ho Lee, Min-suk Kim
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Patent number: 8048820Abstract: The invention relates to a shaped catalyst body for preparing maleic anhydride, which comprises mixed oxides of vanadium and of phosphorus as catalyst components. To develop a generic shaped catalyst body further so that it has improved properties, it is proposed that the basic geometric body enveloping the shaped catalyst body (100; 200) be a prism (180) having a first triangular face and a second triangular face and the shaped catalyst body (100; 200) be provided with three through openings (111, 121, 131; 211, 221, 231) which extend from a first face of the shaped body (100; 200) which contacts the first triangular face of the prism (180) to a second face of the shaped body (100; 200) which contacts the second triangular face of the prism (180).Type: GrantFiled: October 31, 2006Date of Patent: November 1, 2011Assignee: Sud-Chemie AGInventors: Willi Brandstädter, Leopold Streifinger, Marvin Estenfelder
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Publication number: 20110250114Abstract: A vanadia-based catalytic composition for reduction of nitrogen oxides includes a titania-based support material; vanadia deposited on the titania-based support material; a primary promoter comprising tungsten oxide, molybdenum oxide or combinations thereof; and an amount of phosphate to achieve a mole ratio of phosphorus to vanadium plus molybdenum of about 0.2:1 or greater. A zirconia, tin or manganese oxide can be added to further inhibit the volatility of molybdenum. Results show low SO2 oxidation rates and excellent NOx conversion and/or molybdenum stability.Type: ApplicationFiled: April 13, 2010Publication date: October 13, 2011Inventors: Steve M. Augustine, Modasser El-Shoubary, Dennis Clark
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Patent number: 8034737Abstract: A catalyst for producing acrylonitrile capable of maintaining a high yield of acrylonitrile for a long time is provided. The catalyst has a composition represented by MoaBibFecWdRbeAfBgChDiOj(SiO2)k, wherein A is Ni, Mg, Ca, Sr, Ba, Mn, Co, Cu, Zn, Cd or mixture thereof; B is Al, Cr, Ga, Y, In, La, Ce, Pr, Nd, Sm or mixture thereof; C is Ti, Zr, V, Nb, Ta, Ge, Sn, Pb, Sb, P, B, Te or mixture thereof; D is Ru, Rh, Pd, Re, Os, Ir, Pt, Ag or mixture thereof; SiO2 is silica, when a is 10, b is 0.1 to 1.5, c is 0.5 to 3.0, d is 0.01 to 2.0, e is 0.02 to 1.0, f is 2.0 to 9.0, g is 0 to 5, h is 0 to 3, i is 0 to 2, k is 10 to 200; and j is the atomic ratio of oxygen determined by the valence of other elements (excluding silicon); and (a×2+d×2)/(b×3+c×3+e×1+f×2+g×3) is 0.90 to 1.00.Type: GrantFiled: February 26, 2009Date of Patent: October 11, 2011Assignee: Dia-Nitrix Co., Ltd.Inventors: Hirokazu Watanabe, Motoo Yanagita, Kenichi Miyaki
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Publication number: 20110237821Abstract: A catalytic composition useful for the conversion of an olefin selected from the group consisting of propylene, isobutylene or mixtures thereof, to acrylonitrile, methacrylonitrile, and mixtures thereof. The catalytic composition comprising a complex of metal oxides comprising bismuth, molybdenum, iron, cerium and other promoters, wherein the ratio of cerium to iron in the composition is greater than or equal to 0.8 and less than or equal to 5.Type: ApplicationFiled: March 23, 2010Publication date: September 29, 2011Inventors: James F. Brazdil, Mark A. Toft, Michael J. Seely, Charles J. Besecker, Robert A. Gustaferro
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Patent number: 7923404Abstract: Methods of making catalysts for oxidation of unsaturated and/or saturated aldehyde to unsaturated acids is disclosed where the catalyst including at least molybdenum (Mo) and phosphorus (P), where the catalyst has a pore size distribution including at least 50% medium pores and if bismuth is present, a nitric acid to molybdenum mole ratio of at least 0.5:1 or at least 6.0:1 moles of HNO3 per mole of Mo12.Type: GrantFiled: May 31, 2010Date of Patent: April 12, 2011Assignee: Saudi Basic Industries CorporationInventors: Scott A. Stevenson, Wugeng Liang, James W. Kauffman, Lixia Cai, Angie McGuffey, Joseph R. Linzer
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Publication number: 20100323882Abstract: Methods of making catalysts for oxidation of unsaturated and/or saturated aldehyde to unsaturated acids is disclosed where the catalyst including at least molybdenum (Mo) and phosphorus (P), where the catalyst has a pore size distribution including at least 50% medium pores and if bismuth is present, a nitric acid to molybdenum mole ratio of at least 0.5:1 or at least 6.0:1 moles of HNO3 per mole of Mo12.Type: ApplicationFiled: May 31, 2010Publication date: December 23, 2010Applicant: SAUDI BASIC INDUSTRIES CORPORATIONInventors: Scott A. Stevenson, Wugeng Liang, James W. Kauffman, Lixia Cai, Angie McGuffey, Joseph R. Linzer
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Publication number: 20100324331Abstract: The invention relates to mixed oxide catalysts made of hollow shapes for the catalytic gas phase oxidation of olefins, and to a method for producing the catalysts by applying them as a layer to a carrier made of organic material and removing said organic material. The reaction into aldehydes and carboxylic acids occurs by air or oxygen in the presence of inert gases in different quantity ratios, at elevated temperatures and pressure in the presence of said catalysts.Type: ApplicationFiled: January 28, 2008Publication date: December 23, 2010Inventors: Achim Fischer, Werner Burkhardt, Stefan Röder, Klaus Huthmacher
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Patent number: 7851397Abstract: A catalyst for oxidation of unsaturated and/or saturated aldehydes to unsaturated acids is disclosed where the catalyst includes at least molybdenum (Mo), phosphorus (P), vanadium (V), bismuth (Bi), and a first component selected from the group consisting of potassium (K), rubidium (Rb), cesium (Cs), thallium (Tl), or mixtures or combinations thereof, where the bismuth component was dissolved in an organic acid solution prior to adding the bismuth containing solution to a solution of the other components. Methods for making and using the catalysts are also disclosed.Type: GrantFiled: July 25, 2005Date of Patent: December 14, 2010Assignee: Saudi Basic Industries CorporationInventors: Wugeng Liang, Scott A. Stevenson, Angie McGuffey
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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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Patent number: 7777082Abstract: A process for preparing annular unsupported catalysts by thermally treating annular shaped unsupported catalyst precursor bodies, wherein the side crushing strength of the annular shaped unsupported catalyst precursor bodies is ?12 N and ?23 N; such precursor bodies per se; annular unsupported catalysts having a specific pore structure; and a method of using such annular unsupported catalysts for the catalytic partial oxidative preparation in the gas phase of (meth)acrolein.Type: GrantFiled: September 7, 2004Date of Patent: August 17, 2010Assignee: BASF AktiengesellschaftInventors: Jochen Petzoldt, Klaus Joachim Mueller-Engel, Signe Unverricht
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Patent number: 7772148Abstract: An annular unsupported catalyst for the heterogeneously catalyzed partial gas phase oxidation of propene to acrolein at a propene hourly space velocity on the fixed catalyst bed of ?120 1 (STP)/1·h and a total CO2 and saturated hydrocarbon content of the starting reaction gas mixture of below 15 mol %, the catalysts of the fixed catalyst bed are the annular unsupported catalysts whose active composition is a multimetal oxide in which the molar Co/Fe ratio=from 2 to 4 and the molar Co/Mo ratio=from 0.3 to 0.7.Type: GrantFiled: January 26, 2007Date of Patent: August 10, 2010Assignee: BASF AktiengesellschaftInventors: Jochen Petzoldt, Klaus Joachim Mueller-Engel
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Patent number: 7732367Abstract: A catalyst for oxidation of unsaturated and/or saturated aldehyde to unsaturated acids is disclosed where the catalyst including at least molybdenum (Mo), phosphorus (P), vanadium (V), bismuth (Bi), and a first component selected from the group consisting of potassium (K), rubidium (Rb), cesium (Cs), thallium (Tl), or mixtures or combinations thereof, where the catalyst has at least 57% medium pores and a nitric acid to molybdenum mole ratio of at least 0.5:1 or at least 6.0:1 moles of HNO3 per mole of Mo12. Methods for making and using such catalysts are also disclosed.Type: GrantFiled: July 25, 2005Date of Patent: June 8, 2010Assignee: Saudi Basic Industries CorporationInventors: Scott A. Stevenson, Wugeng Liang, James W. Kauffman, Lixia Cai, Angie McGuffey, Joseph R. Linzer
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Patent number: 7662742Abstract: A method for producing a catalyst containing given atoms in a given atomic proportion for use in producing methacrylic acid through gas-phase catalytic oxidation of methacrolein with molecular oxygen comprising the steps of: (i) preparing a solution or slurry containing at least molybdenum, phosphorus, and vanadium (liquid I); (ii) preparing a solution or slurry containing ammonium radical (liquid II); (iii) preparing a mixture of the liquid I and the liquid II by introducing one liquid (liquid PR) of the liquid I and the liquid II into a tank (tank A) and pouring the other liquid (liquid LA) on a continuous region in the surface of the liquid PR, the continuous region occupying 0.01 to 10% of the whole area of the surface of the liquid PR; and (iv) drying and calcining the resultant solution or slurry containing a catalyst precursor comprising all the catalyst constituents.Type: GrantFiled: October 27, 2004Date of Patent: February 16, 2010Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Hiroyuki Naitou, Takashi Karasuda, Tomoki Fukui
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Patent number: 7649111Abstract: A heteropolyacid catalyst for oxidation of isobutyraldehyde, methacrolein or mixtures or combinations thereof to methacrylic acid is disclosed where the heteropolyacid catalyst includes at least molybdenum (Mo), phosphorus (P), vanadium (V), and a first component including bismuth (Bi) and/or boron (B). The heteropolyacid catalyst can also optionally include a second component including potassium (K), rubidium (Rb), cesium (Cs), and/or thallium (Tl) and optionally a third component including antimony (Sb), cerium (Ce), niobium (Nb), indium (In), iron (Fe), chromium (Cr), cobalt (Co), nickel (Ni), manganese (Mn), arsenic (As), silver (Ag), zinc (Zn), germanium (Ge), gallium (Ga), zirconium (Zr), magnesium (Mg), barium (Ba), lead (Pb), tin (Sn), titanium (Ti), aluminum (Al), silicon (Si), tantalum (Ta), tungsten (W), and/or lanthanum (La). The heteropolyacid catalyst can also include an ammonium-containing compound designed to increase a value of medium pores in the final heteropolyacid catalyst.Type: GrantFiled: July 25, 2005Date of Patent: January 19, 2010Assignee: Saudi Basic Industries CorporationInventors: Wugeng Liang, Scott A. Stevenson, Angie McGuffey, Joseph R. Linzer
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Patent number: 7629286Abstract: A process is disclosed for the improvement of fluid bed vanadium phosphorus mixed oxide catalyst performance in the manufacture of maleic anhydride from butane, which process comprises impregnating the VPO catalyst powder with a phosphorus compound, such as an alkyl ester of orthophosphoric acid and then using this impregnated catalyst powder to provide phosphorus to the maleic anhydride producing catalyst.Type: GrantFiled: May 1, 2006Date of Patent: December 8, 2009Assignee: INEOS USA LLCInventors: Muin S. Haddad, Gary V. Goeden
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Patent number: 7625834Abstract: In a method of producing a catalyst for the production of methacrylic acid, which has a composition of the following formula (1), when mixing 100 parts by mass of a solution or a slurry (liquid A) containing molybdenum atoms, phosphorous atoms and vanadium atoms in which the content of ammonium species is 0 to 1.5 mol relative to 12 mol of the molybdenum atoms, 5 to 300 parts by mass of a solution or a slurry (liquid B) containing 6 to 17 mol of ammonium species relative to 12 mol of the molybdenum atoms contained in the liquid A and a solution or a slurry (liquid C) containing an element Z such as cesium, the liquid B is mixed with the liquid A, the liquid C or a mixture of the liquid A and the liquid C over 0.1 to 15 minutes PaMobVcCudXeYfZgOh??(1).Type: GrantFiled: July 4, 2003Date of Patent: December 1, 2009Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Hiroyuki Naitou, Takashi Karasuda
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Publication number: 20090221843Abstract: A catalyst for producing acrylonitrile capable of maintaining a high yield of acrylonitrile for a long time is provided. The catalyst has a composition represented by MoaBibFecWdRbeAfBgChDiOj(SiO2)k, wherein A is Ni, Mg, Ca, Sr, Ba, Mn, Co, Cu, Zn, Cd or mixture thereof; B is Al, Cr, Ga, Y, In, La, Ce, Pr, Nd, Sm or mixture thereof; C is Ti, Zr, V, Nb, Ta, Ge, Sn, Pb, Sb, P, B, Te or mixture thereof; D is Ru, Rh, Pd, Re, Os, Ir, Pt, Ag or mixture thereof; SiO2 is silica, when a is 10, b is 0.1 to 1.5, c is 0.5 to 3.0, d is 0.01 to 2.0, e is 0.02 to 1.0, fis 2.0 to 9.0, g isO to 5, his 0 to 3, i isO to 2, k is 10 to 200; and j is the atomic ratio of oxygen determined by the valence of other elements (excluding silicon); and (a×2+d×2)/(b×3+c×3+e×1+f×2+g×3) is 0.90 to 1.00.Type: ApplicationFiled: February 26, 2009Publication date: September 3, 2009Applicant: DIA-NITRIX CO., LTD.Inventors: Hirokazu Watanabe, Motoo Yanagita, Kenichi Miyaki
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Patent number: 7576028Abstract: A catalyst body comprising a carrier and a catalyst layer containing an alkali metal and/or an alkaline earth metal, loaded on the carrier, which catalyst further contains a substance capable of reacting with the alkali metal and/or the alkaline earth metal, dominating over the reaction between the main components of the carrier and the alkali metal and/or the alkaline earth metal. With this catalyst body, the deterioration of the carrier by the alkali metal and/or the alkaline earth metal is prevented; therefore, the catalyst body can be used over a long period of time.Type: GrantFiled: December 14, 2000Date of Patent: August 18, 2009Assignee: NGK Insulators, Ltd.Inventors: Naomi Noda, Junichi Suzuki, Takashi Harada
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Publication number: 20090171118Abstract: The invention concerns a compound comprising a combination of two crystal phases. The first crystal phase corresponds to the formula: AaEbVcModPeOfHg wherein A is an alkali-metal; E is Te, Sb or Bi; and 0?a?3, 0<b?3, 0?c?3, 0<d?13, 0<e?2, 0?g?3. The second crystal phase corresponds to the formula ZgMohXiOj wherein: Z is selected among trivalent rare earths; X is selected among the elements V, Ga, Fe, Bi, Ce, Ti, Sb, Mn, Zn, Te; and 0<g?3, 0?h?3, 0?i?1. The indices f and j represent the number of oxygen atoms required for satisfying the relative valency and atomic proportions of the elements present. The invention also concerns the method for preparing said compound, and its use in particular as catalyst for oxidizing alkanes.Type: ApplicationFiled: February 14, 2007Publication date: July 2, 2009Inventors: Jean-Marc Millet, Philippe Lacorre, Quyen Huynh
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Patent number: 7538063Abstract: Bismuth- and phosphorus-containing naphtha reforming catalysts, methods of making such catalysts, and a naphtha reforming process using such catalysts.Type: GrantFiled: January 6, 2005Date of Patent: May 26, 2009Assignee: Shell Oil CompanyInventor: Peter Tanev Tanev
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Patent number: 7485597Abstract: A method for improving the selectivity of a supported highly selective epoxidation catalyst comprising silver in a quantity of at most 0.17 g per m2 surface area of the support, which method comprises contacting the catalyst, or a precursor of the catalyst comprising the silver in cationic form, with a feed comprising oxygen at a catalyst temperature above 250° C. for a duration of up to 150 hours, and subsequently decreasing the catalyst temperature to a value of at most 250° C.; and a process for the epoxidation of an olefin, which process comprises contacting a supported highly selective epoxidation catalyst comprising silver in a quantity of at most 0.17 g per m2 surface area of the support, or a precursor of the catalyst comprising the silver in cationic form, with a feed comprising oxygen at a catalyst temperature above 250° C. for a duration of up to 150 hours, and subsequently decreasing the catalyst temperature to a value of at most 250° C.Type: GrantFiled: June 26, 2003Date of Patent: February 3, 2009Assignee: Shell Oil CompanyInventors: John Robert Lockemeyer, Randall Clayton Yeates, Donald Reinalda
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Patent number: 7485596Abstract: The present invention is for a process for making a heteropoly acid compound catalyst for oxidation of unsaturated aldehydes, such as methacrolein, to unsaturated carboxylic acids, such as methacrylic acid, said catalyst containing oxides of molybdenum, phosphorus, and M?, wherein M? is cesium, potassium, rubidium, or sodium, and bismuth. The process is a synthesis of the catalyst with specific process conditions for addition of the bismuth compound as an aqueous slurry without nitric acid. A catalyst precursor is formed by removing the water and drying the solid particles. The heteropoly acid compound catalyst is formed by calcination of the catalyst precursor.Type: GrantFiled: December 28, 2005Date of Patent: February 3, 2009Assignee: Saudi Basic Industries CorporationInventors: James W. Kauffman, Lixia Cai, Wugeng Liang
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Patent number: 7419932Abstract: The method for preserving a catalyst of the present invention is characterized in that, in a process for continuously producing an objective product by a vapor phase oxidation reaction using a phosphorus-molybdenum-vanadium catalyst containing phosphorus, molybdenum and vanadium, the phosphorus-molybdenum-vanadium catalyst retained in a reactor is maintained under a condition of a water content of 30 mg or less per 1 g of catalyst dry weight, before the start of the reaction or during the stop of the reaction. By this, deterioration of the catalyst retained in the reactor can be simply prevented.Type: GrantFiled: January 9, 2004Date of Patent: September 2, 2008Assignee: Mitsubishi Rayon Co., Ltd.Inventors: Yoshiyuki Taniguchi, Toru Kuroda, Hideyasu Takezawa, Yasuhiro Kabu
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Patent number: 7365041Abstract: An ammoxidation catalyst comprising a molybdenum (component (1)), bismuth (component (2)), at least one element selected from the group consisting of nickel, cobalt, zinc, magnesium, manganese and copper (component (3)) and at least one element selected from the group consisting of lanthanum, cerium, praseodymium and neodymium (component (4)), over which an organic compound is subject to ammoxidation which is a composite oxide fluid bed catalyst, is prepared by i) preparing a first solution that comprises at least a portion of component (1), at least a portion of component (2), and at least a portion of component (3) but none of component (4); ii) preparing a second solution by adding a solution of component (4) to the first solution; and iii) drying the second solution obtained and calcining the solid matter obtained from the drying step.Type: GrantFiled: September 25, 2002Date of Patent: April 29, 2008Assignee: Dia-Nitrix Co., Ltd.Inventors: Kenichi Miyaki, Motoo Yanagita, Kunio Mori
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Patent number: 7235508Abstract: The present invention relates to a composition of metal-incorporated VSB-5 molecular sieve with nanopores and its preparation method, in particular, to a composition of a metal-incorporated VSB-5 molecular sieve with a framework of VSB-5 molecular sieve comprising nickel, phosphorous, oxygen and metal, which is useful in various fields such as a hydrogen storage material, an optical and electric/electronic material, a sensor, a catalyst, a catalyst supporter and an adsorbent, and its preparation method performed in such a manner that a specific metal component is added in a predetermined mole ratio to a reaction mixture comprised of nickel and phosphorous compounds and the resultant mixture is crystallized in the presence of inorganic or organic base as a pH modifier to yield a metal-incorporated VSB-5 molecular sieves in an economical and efficient manner.Type: GrantFiled: August 12, 2004Date of Patent: June 26, 2007Assignee: Korea Research Institute of Chemical TechnologyInventors: Sung Hwa Jhung, Jong-San Chang, Sang-Eon Park, Anthony K. Cheetham
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Patent number: 7229945Abstract: The present invention is for a process for making a catalyst for production of unsaturated aldehydes, such as methacrolein, by gas phase catalytic oxidation of olefins, such as isobutylene, said catalyst containing oxides of molybdenum, bismuth, iron, cesium, tungsten, cobalt, nickel, antimony, magnesium and zinc. The process is a two-part synthesis of the catalyst with the water insoluble components in one part and the water soluble components in the other part. The water insoluble components are co-precipitated to form an intermediate catalyst precursor of a precipitated support incorporating oxides of the metal components. The intermediate catalyst precursor is filtered and washed to remove nitrates. The intermediate catalyst precursor is slurried with the remaining water soluble components. A final catalyst precursor is formed by removing the water and incorporating the water soluble components. This two-part process reduces the amount of nitrates in the final catalyst precursor.Type: GrantFiled: December 19, 2003Date of Patent: June 12, 2007Assignee: Saudi Basic Industrics CorporationInventor: James W. Kauffman
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Patent number: 7053022Abstract: Hydrothermally synthesized catalysts comprising a mixed metal oxide are utilized to produce unsaturated carboxylic acids by the vapor phase oxidation of an alkane, or a mixture of an alkane and an alkene, in the presence thereof; or to produce unsaturated nitriles by the vapor phase oxidation of an alkane, or a mixture of an alkane and an alkene, and ammonia in the presence thereof.Type: GrantFiled: September 30, 2003Date of Patent: May 30, 2006Assignee: Rohm and Haas CompanyInventors: Anne Mae Gaffney, Ruozhi Song
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Patent number: 7015173Abstract: A catalyst comprising a mixed metal oxide is useful for the vapor phase oxidation of an alkane or a mixture of an alkane and an alkene to an unsaturated carboxylic acid and for the vapor phase ammoxidation of an alkane or a mixture of an alkane and an alkene to an unsaturated nitrile.Type: GrantFiled: July 18, 2003Date of Patent: March 21, 2006Assignee: Rohm and Haas CompanyInventors: Leonard Edward Bogan, Jr., Alex Pak
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Patent number: 6946422Abstract: A process for making a catalyst containing oxides of molybdenum, bismuth, iron, cesium and, optionally, other metals, such as tungsten, cobalt, nickel, antimony, magnesium, zinc, phosphorus, potassium, rubidium, thallium, manganese, barium, chromium, boron, sulfur, silicon, aluminum, titanium, cerium, tellurium, tin, vanadium, zirconium, lead, cadmium, copper and niobium wherein metal compounds are dissolved and then precipitated as a catalyst precursor which is calcined to form a mixed metal oxide catalyst. The process of the present invention uses an organic acid, such as acetic acid, instead of nitric acid to dissolve the bismuth compound and, optionally, other metal compounds. The catalyst synthesized by this process may be used for the production of unsaturated aldehydes, such as methacrolein, by gas phase catalytic oxidation of olefins, such as isobutylene.Type: GrantFiled: December 12, 2002Date of Patent: September 20, 2005Assignee: Saudi Basic Industries CorporationInventors: Scott A. Stevenson, Wugeng Liang
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Patent number: 6921831Abstract: Modified lead/bismuth/molybdate catalysts containing vanadium, copper, or gold have been prepared, and are selective to the corresponding furan compound from the gas phase oxidation of an unsaturated acyclic hydrocarbon such as butadiene.Type: GrantFiled: January 15, 2003Date of Patent: July 26, 2005Assignee: E. I. du Pont de Nemours and CompanyInventors: Kostantinos Kourtakis, Patrick Mills, Carl Z. Cao
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Patent number: 6903047Abstract: The present invention concerns a method for enhancing the activity of vanadium phosphorus oxide (VPO) catalysts. Promoter reagents are grafted onto or reacted with the catalyst surface. An optional calcination and activation heating cycle transforms the catalyst precursor into a final active phase. A preferred VPO catalyst produced has a ratio of molybdenum to vanadium on the surface of the catalyst to molybdenum to vanadium in the overall bulk of the catalyst represented by the equation (Mo/V) Surface?1.10 (Mo/V) overall bulk.Type: GrantFiled: January 16, 2001Date of Patent: June 7, 2005Assignee: E.I. du Pont de Nemours and CompanyInventors: Kostantinos Kourtakis, Pratibha Laxman Gai
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Patent number: RE39074Abstract: The present invention relates to a process for the selective preparation of acetic acid from a gaseous feed comprising ethane, ethylene or mixtures thereof plus oxygen at elevated temperature, which comprises bringing the gaseous feed into contact with a catalyst comprising the elements Mo, Pd, X and Y in gram atom ratios a:b:c:d in combination with oxygen MoaPdbXcYd??(I) where the symbols X and Y have the following meanings: X is one or more elements selected from the group consisting of: Cr, Mn, Nb, Ta, Ti, V, Te and/or W, in particular Nb, V and W; Y is one or more elements selected from the group consisting of: B, Al, Ga, In, Pt, Zn, Cd, Bi, Ce, Co, Cu, Rh, Ir, Au, Ag, Fe, Ru, Os, K, Rb, Cs, Mg, Ca, Sr, Ba, Zr, Hf, Ni, P, Pb, Sb, Si, Sn, TI and U, in particular Ca, Sb, Te and Li. The present invention further provides a catalyst for the selective preparation of acetic acid comprising the elements Mo, Pd, X and Y in the gram atom ratios a:b:c:d in combination with oxygen.Type: GrantFiled: July 16, 1997Date of Patent: April 18, 2006Assignee: Celanese Chemicals Europe GmbHInventors: Holger Borchert, Uwe Dingerdissen