Two Benzene Rings Bonded Directly To The -o-c(=o)o- Group (i.e., Diaryl Carbonates) Patents (Class 558/274)
  • Patent number: 10367885
    Abstract: Methods and systems to perform methods comprising receiving, at a computer system from a first electronic device a first electronic media work; extracting one or more features therefrom; determining that at least a portion of the first electronic media work corresponds to a first reference media work based on a matching of the extracted features against a database of reference features; receiving, from a second electronic device, a query related to the first electronic media work; linking the query to action information in an action database based upon determining that at least a portion of the first electronic media work corresponds to the first reference media work; generating machine-readable instructions associated with the action to be performed based at least in part on the linking of the query to the action information; transmitting, to the second electronic device, the machine-readable instructions; and logging an event associated with the machine-readable instructions.
    Type: Grant
    Filed: September 14, 2018
    Date of Patent: July 30, 2019
    Assignee: Network-1 Technologies, Inc.
    Inventor: Ingemar J. Cox
  • Patent number: 10059652
    Abstract: Disclosed herein are new mixed metal oxide catalysts suitable as heterogeneous catalysts for catalyzing the transesterification process of aromatic alcohols with a dialkyl carbonate to form aromatic carbonates. The heterogeneous catalyst comprises a combination of two, three, four, or more oxides of Mo, V, Nb, Ce, Cu, Sn, or an element selected from Group IA or Group IIA of the periodic table.
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: August 28, 2018
    Assignee: SABIC GLOBAL TECHNOLOGIES B.V.
    Inventors: Balamurali Krishna Ramachandran Nair, Edouard Mamedov, Pamela Lawyer-Harvey, Neeta Kulkarni, Jonathan Banke
  • Patent number: 9174918
    Abstract: Disclosed is a process for preparing a diaryl oxalate which comprises the step of transesterifying a dialkyl oxalate or/and an alkylaryl oxalate with an aryl alcohol in the presence of a tetra(aryloxy)titanium as a catalyst, wherein the tetra(aryloxy)titanium is fed into a reaction system of the transesterification as an aryl alcohol solution of the tetra(aryloxy)titanium which is prepared by reacting a tetraalkoxy titanium and an excess amount of the aryl alcohol and removing a by-producing alkyl alcohol.
    Type: Grant
    Filed: January 20, 2011
    Date of Patent: November 3, 2015
    Assignee: UBE INDUSTRIES, LTD.
    Inventors: Shuji Tanaka, Hirofumi Ii
  • Patent number: 9175135
    Abstract: The present invention relates to a process for the continuous preparation of diaryl carbonates from phosgene and at least one monohydroxy compound (monophenol) in the presence of catalysts, and also the use thereof for preparing polycarbonates. The hydrogen chloride formed in the reaction is converted by thermal oxidation into chlorine, with the chlorine being recirculated to the preparation of phosgene. In particular, the process comprises utilization of the hydrogen chloride formed for the process for preparing diphenyl carbonate (DPC process).
    Type: Grant
    Filed: March 25, 2011
    Date of Patent: November 3, 2015
    Assignee: Bayer MaterialScience AG
    Inventors: Pieter Ooms, Andreas Bulan
  • Patent number: 9040732
    Abstract: The invention provides a process for preparing diaryl carbonates from dialkyl carbonates and aromatic hydroxyl compounds using at least two reaction columns, a process section for recovering the dialkyl carbonate used in the reaction and for removing the alcohol of reaction, one or more process steps for removing the by-products obtained in the process which have a boiling point between that of the dialkyl carbonate and that of the alkyl aryl carbonate formed during the preparation of the diaryl carbonate, and a process step for further purification of the diaryl carbonate obtained from the reaction columns.
    Type: Grant
    Filed: June 12, 2009
    Date of Patent: May 26, 2015
    Assignee: Bayer MaterialScience AG
    Inventors: Andre Düx, Guenter Olf, Kaspar Hallenberger, Georg Ronge, Ricarda Leiberich, Johan Vanden Eynde, Wim Wuytack, Pieter Ooms, Johann Rechner
  • Patent number: 8975432
    Abstract: The invention relates to a process for the preparation of an alkanediol and a dialkyl carbonate comprising: reacting an alkylene carbonate and an alkanol in the presence of a transesterification catalyst to obtain a reaction mixture comprising dialkyl carbonate, unconverted alkanol, alkanediol, unconverted alkylene carbonate and an alkoxy alkanol impurity; and subjecting the reaction mixture to distillation in a series of steps.
    Type: Grant
    Filed: November 15, 2010
    Date of Patent: March 10, 2015
    Assignee: Shell Oil Company
    Inventors: Cyrille Paul Allais, Timothy Michael Nisbet, Garo Garbis Vaporciyan, Cornelis Leonardus Maria Vrouwenvelder
  • Publication number: 20150065681
    Abstract: Disclosed herein is a method of preparing prepolymer particles. The method includes injecting a prepolymer in a solution state by bottom-up type injection to form prepolymer particles by removing a solvent from the prepolymer in a solution state. The method can prepare prepolymer particles, which can be used in solid-state polymerization, using a bottom-up type flash process.
    Type: Application
    Filed: August 22, 2014
    Publication date: March 5, 2015
    Inventors: Jin Kyu KIM, So Young KWON, Sang Kyun IM, Ki Yon LEE, Suk Min JUN, Gook Geon BAE
  • Patent number: 8952189
    Abstract: The invention relates to a process for preparing diaryl carbonates and/or alkyl aryl carbonates from dialkyl carbonates and aromatic hydroxy compounds using a reactive dividing wall column.
    Type: Grant
    Filed: April 7, 2010
    Date of Patent: February 10, 2015
    Assignee: Bayer MaterialScience AG
    Inventors: Andre Düx, Helmut Mothes, Kaspar Hallenberger, Georg Ronge, Rafael Warsitz, Pieter Ooms, Johann Rechner
  • Patent number: 8882984
    Abstract: A process for preparing diaryl carbonate and utilizing at least part of the process wastewater by increasing the concentration of the wastewater phases containing sodium chloride for the electrolysis by means of osmotic membrane distillation with simultaneous dilution of the sodium hydroxide solution obtained from the electrolysis for the diaryl carbonate production process (diphenyl carbonate process) is described.
    Type: Grant
    Filed: April 13, 2010
    Date of Patent: November 11, 2014
    Assignee: Bayer MaerialScience AG
    Inventors: Pieter Ooms, Andreas Bulan, Johann Rechner, Rainer Weber, Michael Traving, Marc Buts, Johan Vanden Eynde
  • Publication number: 20140275473
    Abstract: A process for purifying a diaryl carbonate, comprises introducing an aqueous stream to a diaryl carbonate stream that comprises a metal contaminant, wherein the aqueous stream reacts with the metal contaminant to form a precipitate; wherein introducing the aqueous stream to the diaryl carbonate stream results in introducing 100 to 10,000 ppm water based on the total composition of the diaryl carbonate stream and the aqueous stream; removing the precipitate via one or both of a separation column and a filter to result in a purified diaryl carbonate.
    Type: Application
    Filed: March 12, 2014
    Publication date: September 18, 2014
    Inventors: Ignacio Vic Fernandez, Mykhaylo Lyakhovych, Sergio Ferrer Nadal
  • Publication number: 20140275600
    Abstract: The invention relates to a process for removing an alkanol impurity from a stream containing an organic carbonate and the alkanol impurity, comprising contacting the stream with a catalyst to effect reaction of the alkanol impurity with the organic carbonate.
    Type: Application
    Filed: May 30, 2014
    Publication date: September 18, 2014
    Applicant: SHELL OIL COMPANY
    Inventors: Evert VAN DER HEIDE, Garo Garbis VAPORCIYAN, Cornelis Leonardus Maria VROUWENVELDER
  • Publication number: 20140275466
    Abstract: A method for producing a polycarbonate comprising: reacting a diaryl carbonate with a dihydroxy compound to form a polycarbonate, wherein the polycarbonate comprises: less than or equal to 1000 ppb of molybdenum; less than or equal to 33 ppb of vanadium; less than or equal to 33 ppb of chromium; less than or equal to 375 ppb of niobium; less than or equal to 33 ppb of nickel; less than or equal to 10 ppb of zirconium; and less or equal to 10 ppb iron.
    Type: Application
    Filed: March 13, 2014
    Publication date: September 18, 2014
    Inventors: Ignacio Vic Fernandez, Mykhaylo Lyakhovych, Sergio Ferrer Nadal
  • Patent number: 8759561
    Abstract: The present invention provides a catalyst for synthesizing an aromatic carbonate, a method of preparing the same, and a method of preparing an aromatic carbonate from dialkyl carbonate using the catalyst. The catalyst has a unit structure consisting of Formulae 1a, 1b or 1c: wherein R1 is C1-C5 alkyl, R2 is substituted or unsubstituted phenyl.
    Type: Grant
    Filed: October 16, 2012
    Date of Patent: June 24, 2014
    Assignee: Cheil Industries Inc.
    Inventors: Mie Ock Kim, Chang Hoon Lee, Dong Baek Kim
  • Publication number: 20140081039
    Abstract: In an embodiment, a process for preparing an alkyl aryl carbonate and a diaryl carbonate, comprising: reacting a dialkyl carbonate and an aromatic hydroxy compound in a production column 200, 300 to form the alkyl aryl carbonate and the diaryl carbonate; directing a bottom stream of the production column to a reboiler 205, 305, wherein the bottom stream comprises the alkyl aryl carbonate and the diaryl carbonate; heating the bottom stream in the reboiler 205, 305 with heat from an overhead stream of the production column 200, 300 to result in a heated bottom stream; directing a first portion of the heated bottom stream back into the production column 200, 300, wherein the first portion comprises phenol; and collecting the diaryl carbonate and the alkyl aryl carbonate from a second portion of the heated bottom stream.
    Type: Application
    Filed: September 19, 2013
    Publication date: March 20, 2014
    Applicant: SABIC Innovative Plastics IP B.V.
    Inventors: Sergio Ferrer Nadal, Ignacio Vic Fernandez, Jose Antonio Caballero, Juan Javaloyes Anton
  • Publication number: 20140038060
    Abstract: The present invention is to provide a nonaqueous electrolytic solution capable of enhancing electrochemical characteristics in a broad temperature range, an energy storage device using the nonaqueous electrolytic solution, and a specific trifluoromethylbenzene compound. There are provided a nonaqueous electrolytic solution of an electrolyte salt dissolved in a nonaqueous solvent, which comprises at least one halogenoalkylbenzene compound represented by the following general formula (I), an energy storage device using the nonaqueous electrolytic solution, and a specific trifluoromethylbenzene compound.
    Type: Application
    Filed: March 30, 2012
    Publication date: February 6, 2014
    Applicant: UBE INDUSTRIES, LTD.
    Inventor: Koji ABE
  • Patent number: 8580996
    Abstract: A method of preparing aromatic carbonate from dialkyl carbonate includes reacting an aromatic hydroxyl compound and dialkyl carbonate in the presence of at least one type of samarium-containing catalyst represented by Formula 1, Formula 2, or a combination thereof: SmX3??[Formula 1] wherein each X is the same or different and is independently C1 to C10 alkoxy, C1 to C10 alkyl phenoxy or phenoxy, and wherein R1 and R2 are the same or different and are independently hydrogen or C1 to C6 alkyl.
    Type: Grant
    Filed: July 5, 2011
    Date of Patent: November 12, 2013
    Assignee: Cheil Industries Inc.
    Inventors: Dong Baek Kim, Mie Ock Kim, Chang Hoon Lee
  • Patent number: 8530606
    Abstract: The invention relates to a process for preparing a diaryl carbonate from a dialkyl carbonate and an aryl alcohol using a series of reactive distillation columns.
    Type: Grant
    Filed: November 30, 2010
    Date of Patent: September 10, 2013
    Assignee: Shell Oil Company
    Inventors: Timothy Michael Nisbet, Garo Garbis Vaporciyan, Cornelis Leonardus Maria Vrouwenvelder
  • Patent number: 8518231
    Abstract: The invention relates to a process for production of diaryl carbonate combined with the electrolysis of the resultant alkali metal chloride-containing process wastewater. The process according to the invention makes possible, inter alia, improved utilization in electrolysis of the alkali metal chloride-containing solution obtained in the production of diaryl carbonate.
    Type: Grant
    Filed: March 1, 2011
    Date of Patent: August 27, 2013
    Assignee: Bayer Intellectual Property GmbH
    Inventors: Pieter Ooms, Andreas Bulan, Johann Rechner, Rainer Weber, Marc Buts, Johan Vanden Eynde
  • Patent number: 8507711
    Abstract: A flame-retardant compound has a structure represented by formula (2): (Ar2—O—CO—O—)nA2-X-A1(—O—CO—O—Ar1)m??(2) wherein A1 and A2 each independently represents a substituted or unsubstituted aromatic group; X represents a divalent group represented by —S—, —O—, —CO—, —CN—, —CH2—, —C(CH3)2—, —CH(CH3)—, —NH—, —SO— or —SO2—; Ar1 and Ar2 each independently represents a substituted or unsubstituted phenyl group; and m and n each independently represents an integer of 1 to 3.
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: August 13, 2013
    Assignee: Fuji Xerox Co., Ltd.
    Inventors: Masato Mikami, Masayuki Okoshi, Kazuya Yamanoi
  • Patent number: 8507712
    Abstract: The invention relates to a method for producing diphenylcarbonate while using a catalyst composition comprising ionic fluids.
    Type: Grant
    Filed: September 17, 2009
    Date of Patent: August 13, 2013
    Assignee: Bayer Technology Services GmbH
    Inventors: Alexandra Groβe Böwing, Aurel Wolf, Kilian Tellmann, Leslaw Mleczko
  • Publication number: 20130165681
    Abstract: The present invention provides a catalyst for synthesizing an aromatic carbonate, a method of preparing the same, and a method of preparing an aromatic carbonate from dialkyl carbonate using the catalyst. The catalyst has a unit structure of Formula 1: [Formula 1] [Sn(R1)(OR2)O]n wherein R1 is C1-C5 alkyl, R2 is substituted or unsubstituted phenyl, and n is an integer from 1 to 10.
    Type: Application
    Filed: October 16, 2012
    Publication date: June 27, 2013
    Applicant: CHEIL INDUSTRIES INC.
    Inventor: CHEIL INDUSTRIES INC.
  • Publication number: 20130018186
    Abstract: The invention relates to bimetallic complexes in which the ligand contains a salophen unit which complexes copper, manganese or cobalt and a phenanthroline unit which complexes palladium and the two systems are linked by a continuous conjugated system. The invention further relates to the use of these bimetallic complexes as catalysts for the oxidative carbonylation of aromatic hydroxy compounds to form diaryl carbonates, a process for preparing diaryl carbonates using the bimetallic complex as catalyst and also diaryl carbonates prepared by oxidative carbonylation of aromatic hydroxy compounds using the bimetallic complexes of the invention as catalysts.
    Type: Application
    Filed: December 9, 2010
    Publication date: January 17, 2013
    Applicant: Bayer Intellectual Property GmbH
    Inventors: Christoph Gürtler, Thomas Ernst Müller, Pieter Ooms, Johann Rechner, Friedhelm Risse, Angelina Prokofieva, Franco Doro, Burkhard Köhler, Walter Leitner, Aurel Wolf
  • Publication number: 20120316357
    Abstract: The present invention provides a method for continuously producing a diaryl carbonate stably for a long time with high productivity. The method for producing a diaryl carbonate according to the present invention comprises a step (1) of obtaining an alkylaryl carbonate; a step (2) of obtaining a reaction product from the alkylaryl carbonate; a step (3) of separating the diaryl carbonate and a high boiling component from the reaction product; and a step (4) of recycling the high boiling component into the steps (1) and/or (2), wherein the high boiling component recycled in the step (4) includes a particular compound, and the particular compound satisfies a particular condition.
    Type: Application
    Filed: February 23, 2011
    Publication date: December 13, 2012
    Inventors: Budianto Nishiyama, Nobuhisa Miyake
  • Publication number: 20120296063
    Abstract: Disclosed is a process for preparing a diaryl oxalate which comprises the step of transesterifying a dialkyl oxalate or/and an alkylaryl oxalate with an aryl alcohol in the presence of a tetra(aryloxy)titanium as a catalyst, wherein the tetra(aryloxy)titanium is fed into a reaction system of the transesterification as an aryl alcohol solution of the tetra(aryloxy)titanium which is prepared by reacting a tetraalkoxy titanium and an excess amount of the aryl alcohol and removing a by-producing alkyl alcohol.
    Type: Application
    Filed: January 20, 2011
    Publication date: November 22, 2012
    Inventors: Shuji Tanaka, Hirofumi Il
  • Patent number: 8309750
    Abstract: The invention relates to a process for the preparation of a diaryl carbonate, which comprises: (i) contacting an aromatic non-hydroxy compound with a carboxylic acid of formula HOC(?O)R1 (I), wherein R1 is a hydrocarbyl group, and with an oxygen containing gas in the presence of a catalyst, resulting in water and an aromatic carboxylic acid ester of formula R2OC(?O)R1 (II), wherein R2 is an aryl group originating from the aromatic non-hydroxy compound; and (ii) contacting the aromatic carboxylic acid ester of formula (II) from step (i) with a dialkyl carbonate of formula R3OC(?O)OR4 (III), wherein R3 and R4 are the same or different and are alkyl groups, in the presence of a catalyst, resulting in a diaryl carbonate of formula R2OC(?O)OR2 (IV) and an alkyl carboxylic acid ester of formula R5OC(?O)R1 (V), wherein R5 is R3 or R4.
    Type: Grant
    Filed: August 19, 2008
    Date of Patent: November 13, 2012
    Assignee: Shell Oil Company
    Inventor: Garo Garbis Vaporciyan
  • Publication number: 20120245319
    Abstract: The invention relates to a process for preparing a diaryl carbonate from a dialkyl carbonate and an aryl alcohol using a series of reactive distillation columns.
    Type: Application
    Filed: November 30, 2010
    Publication date: September 27, 2012
    Inventors: Timothy Michael Nisbet, Garo Garbis Vaporciyan, Cornelis Leonardus Maria Vrouwenvelder
  • Publication number: 20120190878
    Abstract: Processes for producing diaryl carbonates are disclosed, where such processes may provide for the production of diaryl carbonates from green house gases, such as carbon dioxide. The processes disclosed advantageously integrate diethyl carbonate and diaryl carbonate production, eliminating the need for solvent-based extractive distillation, as is commonly required when producing diaryl carbonates from dimethyl carbonate, providing for the integration of separation equipment and raw material usage, and reducing the operating and capital requirements for such processes. In some embodiments, processes disclosed herein may be operated essentially closed-loop with respect to ethanol usage, for example.
    Type: Application
    Filed: February 2, 2012
    Publication date: July 26, 2012
    Applicant: SHELL OIL COMPANY
    Inventor: J. Yong Ryu
  • Patent number: 8222444
    Abstract: Processes for the alcoholysis, inclusive of transesterification and/or disproportionation, of reactants are disclosed. The alcoholysis process may include feeding reactants and a trace amount of soluble organometallic compound to a reactor comprising a solid alcoholysis catalyst, wherein the soluble organometallic compound and the solid alcoholysis catalyst each independently comprise a Group II to Group VI element, which may be the same element in various embodiments. As an example, diphenyl carbonate may be continuously produced by performing transesterification over a solid catalyst followed by disproportionation, where a trace amount of soluble organometallic compound is fed to the transesterification reactor.
    Type: Grant
    Filed: October 28, 2010
    Date of Patent: July 17, 2012
    Assignee: Catalytic Distillation Technologies
    Inventor: J. Yong Ryu
  • Publication number: 20120172573
    Abstract: A method of preparing aromatic carbonate from dialkyl carbonate includes reacting an aromatic hydroxyl compound and dialkyl carbonate in the presence of at least one type of samarium-containing catalyst represented by Formula 1, Formula 2, or a combination thereof: SmX3 ??[Formula 1] wherein each X is the same or different and is independently C1 to C10 alkoxy, C1 to C10 alkyl phenoxy or phenoxy, and wherein R1 and R2 are the same or different and are independently hydrogen or C1 to C6 alkyl.
    Type: Application
    Filed: July 5, 2011
    Publication date: July 5, 2012
    Applicant: CHEIL INDUSTRIES INC.
    Inventors: Dong Baek KIM, Mie Ock KIM, Chang Hoon LEE
  • Patent number: 8212066
    Abstract: The present invention relates to a process for producing diaryl carbonates, which is to synthesize diaryl carbonates by oxidative carbonylation of phenols with carbon monoxide and oxygen, and in particular, to synthesize diphenyl carbonate from phenol. The present invention is characterized in that a catalytic system comprising a metal halide catalyst and one or more cocatalysts of nitrogenous heterocyclic compounds is used to increase the convertibility, selectivity and yield of this catalytic reaction.
    Type: Grant
    Filed: June 10, 2010
    Date of Patent: July 3, 2012
    Assignee: China Petrochemical Development Corporation
    Inventors: Zhen Wei Huang, Chih Wei Chang, Chia Jung Tsai
  • Patent number: 8138367
    Abstract: The present invention provides a process for the production of an aromatic carbonate, comprising the steps of: continuously feeding an aliphatic carbonate represented by following general formula (1) as a starting material, an aromatic monohydroxy compound represented by following general formula (2) as a reactant, and a metal-containing catalyst into a stage above the bottom of a first multi-stage distillation column so as to bring about reaction; continuously withdrawing from the reaction system in a gaseous form a low boiling point component containing an alcohol by-produced in the reaction; and continuously withdrawing from a lower portion of the column in a liquid form an aromatic carbonate represented by following general formula (3) obtained from the starting material and the reactant Ar1OH??(2) wherein R1 in general formulae (1) and (2) represents an aliphatic group having 4 to 6 carbon atoms, and Ar1 represents an aromatic group having 5 to 30 carbon atoms wherein R2 and Ar2 in general formu
    Type: Grant
    Filed: December 9, 2005
    Date of Patent: March 20, 2012
    Assignee: Asahi Kasei Chemicals Corporation
    Inventor: Nobuhisa Miyake
  • Patent number: 8088686
    Abstract: The present invention provides a method of remedying deterioration of an insulating film which, during the remedial treatment of an insulating film deteriorated by plasma treatment, does not leave residual remedial agent on the wiring material such as the copper wiring layer, can be conducted using a dry process, and exhibits excellent applicability to mass production. The insulating film that has been deteriorated by plasma treatment is brought into contact with a remedial agent composed of a compound with a molecular structure having at least one of a nitro group and a carbonyl group, and at least one of a hydrocarbon group and a hydrogen group.
    Type: Grant
    Filed: April 18, 2007
    Date of Patent: January 3, 2012
    Assignee: Taiyo Nippon Sanso Corporation
    Inventors: Shuji Nagano, Satoshi Hasaka, Minoru Inoue, Toshinori Shibata
  • Patent number: 8039659
    Abstract: Processes comprising: reacting a dialkyl carbonate and an aromatic hydroxy compound in the presence of a transesterification catalyst in a first reaction column, the first reaction column comprising a top section, a bottom section, a rectifying section in an upper portion of the column and a reaction zone below the rectifying section; feeding a bottom product from the first reaction column to a further reaction column; the bottom product comprising a diaryl carbonate, an alkylaryl carbonate, or both, and residual unreacted dialkyl carbonate and aromatic hydroxy compound; the further reaction column comprising a top section, a rectifying section in an upper portion of the column and a reaction zone below the rectifying section; and reacting the residual unreacted dialkyl carbonate and aromatic hydroxy compound in the further reaction column; feeding a process stream to a distillation column, the process stream comprising a mixture of unreacted dialkyl carbonate and one or more reaction-product alcohols drawn f
    Type: Grant
    Filed: September 15, 2008
    Date of Patent: October 18, 2011
    Assignee: Bayer MaterialScience AG
    Inventors: Andre Düx, Pieter Ooms, Johann Rechner, Matthias Böhm, Kaspar Hallenberger, Georg Ronge, Johan Vanden Eynde
  • Patent number: 8034967
    Abstract: A method of producing a purified ester-substituted phenol stream is provided. The method includes a first step of obtaining from a melt transesterification reaction a byproduct stream containing a residual ester-substituted diaryl carbonate, an ester-substituted phenol, a residual melt transesterification catalyst, and a catalyst degradation product. A second step includes treating the reaction byproduct stream to separate ester-substituted phenol and catalyst degradation product from residual ester-substituted diaryl carbonate and residual melt transesterification catalyst to create a light recycle stream containing ester-substituted phenol and catalyst degradation product and a heavy recycle stream containing residual ester-substituted diaryl carbonate and residual melt transesterification catalyst. A third step includes treating the light recycle stream to reduce catalyst degradation product concentration thereby producing a purified ester-substituted phenol stream.
    Type: Grant
    Filed: November 30, 2007
    Date of Patent: October 11, 2011
    Assignee: Sabic Innnovative Plastics IP B.V.
    Inventors: Hatem Belfadhel, Stephan Bouwens, Martin Herke Oyevaar
  • Publication number: 20110245527
    Abstract: The present invention relates to a process for the continuous preparation of diaryl carbonates from phosgene and at least one monohydroxy compound (monophenol) in the presence of catalysts, and also the use thereof for preparing polycarbonates. The hydrogen chloride formed in the reaction is converted by thermal oxidation into chlorine, with the chlorine being recirculated to the preparation of phosgene. In particular, the process comprises utilization of the hydrogen chloride formed for the process for preparing diphenyl carbonate (DPC process).
    Type: Application
    Filed: March 25, 2011
    Publication date: October 6, 2011
    Applicant: Bayer MaterialScience AG
    Inventors: Pieter Ooms, Andreas Bulan
  • Patent number: 8022240
    Abstract: Processes comprising: transesterifying a dialkyl carbonate and an aromatic hydroxyl compound in the presence of a transesterification catalyst to provide a diaryl carbonate product comprising the transesterification catalyst as an impurity; subjecting the diaryl carbonate product to distillation in a first distillation column having an upper part and a lower part, wherein the upper part comprises a rectifying section and the lower part comprises a stripping section; and withdrawing a first sidestream from the first distillation column, wherein the first sidestream comprises a purified diaryl carbonate.
    Type: Grant
    Filed: November 20, 2008
    Date of Patent: September 20, 2011
    Assignee: Bayer MaterialScience AG
    Inventors: Pieter Ooms, Johann Rechner, Matthias Böhm, Andre Düx, Kaspar Hallenberger, Georg Ronge, Johan Vanden Eynde
  • Patent number: 8003817
    Abstract: The invention provides a process for the preparation of diaryl carbonates and/or alkylaryl carbonates from dialkyl carbonates and aromatic hydroxy compounds using one or more intermediate condensers for improving heat integration.
    Type: Grant
    Filed: May 16, 2008
    Date of Patent: August 23, 2011
    Assignee: Bayer MaterialScience AG
    Inventors: Andre Düx, Pieter Ooms, Johann Rechner, Kaspar Hallenberger, Georg Ronge, Johan Vanden Eynde
  • Publication number: 20110172454
    Abstract: The invention relates to a method for producing diphenylcarbonate while using a catalyst composition comprising ionic fluids.
    Type: Application
    Filed: September 17, 2009
    Publication date: July 14, 2011
    Applicant: BAYER TECHNOLOGY SERVICES GMBH
    Inventors: Alexandra Große Böwing, Aurel Wolf, Kilian Tellmann, Leslaw Mleczko
  • Publication number: 20110152558
    Abstract: The present invention relates to a process for producing diaryl carbonates, which is to synthesize diaryl carbonates by oxidative carbonylation of phenols with carbon monoxide and oxygen, and in particular, to synthesize diphenyl carbonate from phenol. The present invention is characterized in that a catalytic system comprising a metal halide catalyst and one or more cocatalysts of nitrogenous heterocyclic compounds is used to increase the convertibility, selectivity and yield of this catalytic reaction.
    Type: Application
    Filed: June 10, 2010
    Publication date: June 23, 2011
    Applicant: CHINA PETROCHEMICAL DEVELOPMENT CORPORATION
    Inventors: Zhen Wei HUANG, Chih Wei CHANG, Chia Jung TSAI
  • Patent number: 7919644
    Abstract: A process for producing an aromatic carbonate, which comprises the steps of: (I) transesterifying a starting material selected from the group consisting of a dialkyl carbonate, an alkyl aryl carbonate and a mixture thereof with a reactant selected from the group consisting of an aromatic monohydroxy compound, an alkyl aryl carbonate and a mixture thereof, in the presence of a catalyst, to thereby obtain a high boiling point reaction mixture comprising an aromatic carbonate (a) and an aromatic carbonate ether (b), while withdrawing a low boiling point reaction mixture containing a low boiling point by-product; and (II) separating the aromatic carbonate ether (b) from the high boiling point reaction mixture to thereby obtain a high purity aromatic carbonate.
    Type: Grant
    Filed: June 17, 2005
    Date of Patent: April 5, 2011
    Assignee: Asahi Kasei Chemicals Corporation
    Inventors: Masahiro Tojo, Hironori Miyaji
  • Publication number: 20110046409
    Abstract: Processes for the alcoholysis, inclusive of transesterification and/or disproportionation, of reactants are disclosed. The alcoholysis process may include feeding reactants and a trace amount of soluble organometallic compound to a reactor comprising a solid alcoholysis catalyst, wherein the soluble organometallic compound and the solid alcoholysis catalyst each independently comprise a Group II to Group VI element, which may be the same element in various embodiments. As an example, diphenyl carbonate may be continuously produced by performing transesterification over a solid catalyst followed by disproportionation, where a trace amount of soluble organometallic compound is fed to the transesterification reactor.
    Type: Application
    Filed: October 28, 2010
    Publication date: February 24, 2011
    Applicant: CATALYTIC DISTILLATION TECHNOLOGIES
    Inventor: J. Yong Ryu
  • Patent number: 7884251
    Abstract: It is an object of the present invention to provide a specific industrial separation process that enables an alcohol to be separated out efficiently and stably for a prolonged period of time from a large amount of a low boiling point reaction mixture containing a by-produced alcohol when mass-producing aromatic carbonates on an industrial scale by subjecting a dialkyl carbonate and an aromatic monohydroxy compound to transesterification reaction in a reactive distillation column in which a catalyst is present. Although there have been various proposals regarding processes for the production of aromatic carbonates by means of a reactive distillation method, these have all been on a small scale and short operating time laboratory level, and there have been no disclosures whatsoever on a specific process or apparatus enabling mass production on an industrial scale to be carried out stably for a prolonged period of time.
    Type: Grant
    Filed: September 12, 2005
    Date of Patent: February 8, 2011
    Assignee: Asahi Kasei Chemicals Corporation
    Inventors: Shinsuke Fukuoka, Hironori Miyaji, Hiroshi Hachiya, Kazuhiko Matsuzaki
  • Patent number: 7851645
    Abstract: Processes for the alcoholysis, inclusive of transesterification and/or disproportionation, of reactants are disclosed. The alcoholysis process may include feeding reactants and a trace amount of soluble organometallic compound to a reactor comprising a solid alcoholysis catalyst, wherein the soluble organometallic compound and the solid alcoholysis catalyst each independently comprise a Group II to Group VI element, which may be the same element in various embodiments. As an example, diphenyl carbonate may be continuously produced by performing transesterification over a solid catalyst followed by disproportionation, where a trace amount of soluble organometallic compound is fed to the transesterification reactor.
    Type: Grant
    Filed: February 11, 2008
    Date of Patent: December 14, 2010
    Assignee: Catalytic Distillation Technologies
    Inventor: J. Yong Ryu
  • Publication number: 20100286431
    Abstract: A process for preparing diaryl carbonate and utilizing at least part of the process wastewater by increasing the concentration of the wastewater phases containing sodium chloride for the electrolysis by means of osmotic membrane distillation with simultaneous dilution of the sodium hydroxide solution obtained from the electrolysis for the diaryl carbonate production process (diphenyl carbonate process) is described.
    Type: Application
    Filed: April 13, 2010
    Publication date: November 11, 2010
    Applicant: Bayer MaterialScience AG
    Inventors: Pieter Ooms, Andreas Bulan, Johann Rechner, Rainer Weber, Michael Traving, Marc Buts, Johan Vanden Eynde
  • Publication number: 20100261928
    Abstract: The invention relates to a process for preparing diaryl carbonates and/or alkyl aryl carbonates from dialkyl carbonates and aromatic hydroxy compounds using a reactive dividing wall column.
    Type: Application
    Filed: April 7, 2010
    Publication date: October 14, 2010
    Applicant: Bayer MaterialScience AG
    Inventors: Andre DÜX, Helmut Mothes, Kaspar Hallenberger, Georg Ronge, Rafael Warsitz, Pieter Ooms, Johann Rechner
  • Patent number: 7812189
    Abstract: According to the present invention, there are provided a high boiling point material separating column A and a diphenyl carbonate purifying column B each comprising a continuous multi-stage distillation column having specified structures, and there is provided a specific process that enables a high-purity diphenyl carbonate which is important as a raw material of a high-quality and high-performance polycarbonate to be produced stably for a prolonged period of time on an industrial scale of not less than 1 ton/hr from a reaction mixture containing the diphenyl carbonate using an apparatus in which these two continuous multi-stage distillation columns are connected together.
    Type: Grant
    Filed: August 24, 2005
    Date of Patent: October 12, 2010
    Assignee: Asahi Kasei Chemicals Corporation
    Inventors: Shinsuke Fukuoka, Hiroshi Hachiya, Kazuhiko Matsuzaki, Hironori Miyaji
  • Patent number: 7777067
    Abstract: It is an object of the present invention to provide, for the case of continuously producing aromatic carbonates containing a diaryl carbonate as a main product by taking an alkyl aryl carbonate as a starting material, which is obtainable through a transesterification reaction between a dialkyl carbonate and an aromatic monohydroxy compound, using a continuous multi-stage distillation column in which a catalyst is present, and continuously feeding the starting material into the continuous multi-stage distillation column, a specific process that enables the diaryl carbonate to be produced with high selectivity and high productivity stably for a prolonged period of time on an industrial scale of not less than 1 ton per hour.
    Type: Grant
    Filed: July 11, 2005
    Date of Patent: August 17, 2010
    Assignee: Asahi Kasei Chemicals Corporation
    Inventors: Shinsuke Fukuoka, Hiroshi Hachiya, Kazuhiko Matsuzaki
  • Publication number: 20100197952
    Abstract: Processes for producing diaryl carbonates are disclosed, where such processes may provide for the production of diaryl carbonates from green house gases, such as carbon dioxide. The processes disclosed advantageously integrate diethyl carbonate and diaryl carbonate production, eliminating the need for solvent-based extractive distillation, as is commonly required when producing diaryl carbonates from dimethyl carbonate, providing for the integration of separation equipment and raw material usage, and reducing the operating and capital requirements for such processes. In some embodiments, processes disclosed herein may be operated essentially closed-loop with respect to ethanol usage, for example.
    Type: Application
    Filed: July 31, 2009
    Publication date: August 5, 2010
    Applicant: Catalytic Distillation Technologies
    Inventor: J. Yong Ryu
  • Patent number: 7732629
    Abstract: The invention relates to a process for the preparation of a diaryl carbonate by transesterification of an aromatic alcohol with a dialkyl carbonate in the presence of a transesterification catalyst during a period of time [ta], in which the aryl moiety is selected from unsubstituted phenyl and mono-, di- and trisubstituted phenyl groups, in which the alkyl moiety is selected from C2 to C4 linear and branched alkyl groups, in which the catalyst concentration is designated [ca], expressed as gram catalyst per gram of aromatic alcohol and dialkyl carbonate, in which the period of time [tm] and catalyst concentration [cm] are determined to arrive at a pre-set approach to the equilibrium for the transesterification of the aromatic alcohol with dimethyl carbonate to methyl aryl carbonate and methanol, in which the product [ca]*ta is at least 1.5*[cm]*tm under otherwise the same reaction conditions.
    Type: Grant
    Filed: January 21, 2008
    Date of Patent: June 8, 2010
    Assignee: Shell Oil Company
    Inventors: Evert Van Der Heide, Timothy Michael Nisbet, Garo Garbis Vaporciyan, Cornelis Leonardus Maria Vrouwenvelder
  • Publication number: 20100094039
    Abstract: The invention relates to a process for preparing diaryl carbonates by reacting monophenols with phosgene or aryl chlorocarbonates with elimination of hydrogen chloride in the presence of mixed hydroxides of elements from groups 2-14 of the periodic table (IUPAC, new) as heterogeneous catalysts.
    Type: Application
    Filed: October 7, 2009
    Publication date: April 15, 2010
    Applicant: Bayer MaterialScience AG
    Inventor: Pieter Ooms