Patents by Inventor Rainer Papp
Rainer Papp 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).
-
Publication number: 20240409484Abstract: The invention concerns a method for providing a high-purity n-butanol product stream from a crude n-butanol feed stream by fractional distillation in a dividing wall column (102) including an upper section (104), a middle section and a lower section (110), the middle section including an inflow section (106) and an offtake section (108) laterally separated from each other by a dividing wall (112) fixed in the column, the crude n-butanol feed stream being fed to the inflow section (106) and the high-purity n-butanol product stream being withdrawn from the offtake section (108), the liquid stream flowing out of the upper section (104) being collected and divided into a first liquid stream (114) and a second liquid stream (116), the first liquid stream (114) being fed to the upper region of the offtake section (108) and the second liquid stream (116) being fed to the upper region of the inflow section (106), wherein the split ratio between the mass flow rate of the first liquid stream (114) and the mass flow ratType: ApplicationFiled: October 17, 2022Publication date: December 12, 2024Inventors: Bernd METZEN, Rainer PAPP
-
Patent number: 11926639Abstract: A process for preparing oligo ethylene glycol methyl ether borate involves feeding boric acid and oligo ethylene glycol monomethyl ether into a reactor, and reacting to obtain a raw product containing oligo ethylene glycol methyl ether borate, water, and unreacted boric acid and oligo ethylene glycol monomethyl ether. The raw product is fed to a reactive distillation device and boric acid is reacted with oligo ethylene glycmonomethyl ether for full conversion of boric acid. A distillate stream containing water is transferred from the top of the reactive distillation device to a condenser, and a condensed liquid stream is recycled to the top of the reactive distillation device. A bottom product stream containing oligo ethylene glycol methyl ether borate is withdrawn from the reactive distillation device. The bottom product stream is partially recycled to a reboiler. The resulting vapor stream is recycled to the bottom of the reactive distillation device.Type: GrantFiled: November 19, 2020Date of Patent: March 12, 2024Assignee: BASF SEInventors: Kathrin Luise Mariethres Werth, Thomas Holtmann, Rainer Papp, Mirko Haider, Joachim Wulff-Doering
-
Publication number: 20230192580Abstract: Low-pressure hydroformylation of diisobutene A hydroformylation process for preparing 3,5,5-trimethylhexanal comprising reacting 2,4,4-tri-methylpent-2-ene with H2 and CO in a reaction zone in the presence of one or more free organ-ophosphite ligands of the general formula (1) wherein R1, R2, R3, R4 and R5 are each independently H, C1- to C9-alkyl or C1- to C9-alkoxy and R1, R2, R3, R4 and R5 are not H at the same time, and R6, R7, R8, R9 and R10 are each independently H, C1- to C9-alkyl or C1- to C9-alkoxy and R6, R7, R8, R9 and R10 are not H at the same time, and R11, R12, R13, R14 and R15 are each independently H, C1- to C9-alkyl or C1- to C9-alkoxy and R11, R12, R13, R14 and R15 are not H at the same time, and a homogeneous rhodium catalyst complexed with one or more organophosphite ligands of the general formula (I) at a pressure of 1 to 100 bar abs and a temperature of from 50 to 200° C.Type: ApplicationFiled: February 1, 2021Publication date: June 22, 2023Inventors: Jonas SCHWABEN, Rocco PACIELLO, Rainer PAPP
-
Publication number: 20230174447Abstract: Process for hydroformylation of olefins having 6 to 20 carbon atoms in the presence of a cobalt catalyst in the presence of an aqueous phase with thorough mixing in a reactor wherein a hydroformylation products-containing first stream is withdrawn at the top of the reactor and an aqueous phase-containing second stream is withdrawn from the bottom of the reactor via at least one line leading out of the bottom of the reactor, which process comprises controlling one or more mass flow parameters of the second stream in accordance with the density of the second stream.Type: ApplicationFiled: March 24, 2021Publication date: June 8, 2023Inventors: Rainer PAPP, Frank HUETTEN, Dirk JUNGMANN, Edward RICHMOND
-
Publication number: 20230002421Abstract: A process for preparing oligo ethylene glycol methyl ether borate involves feeding boric acid and oligo ethylene glycol monomethyl ether into a reactor, and reacting to obtain a raw product containing oligo ethylene glycol methyl ether borate, water, and unreacted boric acid and oligo ethylene glycol monomethyl ether. The raw product is fed to a reactive distillation device and boric acid is reacted with oligo ethylene glycmonomethyl ether for full conversion of boric acid. A distillate stream containing water is transferred from the top of the reactive distillation device to a condenser, and a condensed liquid stream is recycled to the top of the reactive distillation device. A bottom product stream containing oligo ethylene glycol methyl ether borate is withdrawn from the reactive distillation device. The bottom product stream is partially recycled to a reboiler. The resulting vapor stream is recycled to the bottom of the reactive distillation device.Type: ApplicationFiled: November 19, 2020Publication date: January 5, 2023Applicant: BASF SEInventors: Kathrin Luise Mariethres WERTH, Thomas Holtmann, Rainer Papp, Mirko Haider, Joachim Wulff-Doering
-
Publication number: 20220298444Abstract: The present invention relates to a lubricant comprising a polyacrylate which contains a C13/15 acrylate in polymerized form, where the C13/15 acrylate comprises at least 70 wt % of linear and branched C13 and C15 alkyl (meth)acrylates. It further relates to the polyacrylate, to the C13/15 acrylate, to a method for preparing the polyacrylate by free-radical polymerization of the C13/15 acrylate, and to a method for preparing a lubricant by contacting the polyacrylate to a base oil.Type: ApplicationFiled: June 9, 2020Publication date: September 22, 2022Inventors: Szilard CSIHONY, Rainer PAPP, Kevin J. DESANTIS, Meaghan C. MCGUIRE, Matthias FIES, Andrea MISSKE, Christoph FLEKENSTEIN
-
Patent number: 11014863Abstract: A process for preparing C4 to C13 monohydroxy compounds from a bottom fraction arising in the distillation of a crude mixture of C4 to C13 oxo-process aldehydes from cobalt-catalyzed or rhodium-catalyzed hydroformylation, or in the distillation of a crude mixture of C4 to C13 oxo-process alcohols, which comprises contacting the bottom fraction in the presence of hydrogen with a catalyst comprising copper oxide and aluminum oxide, at a temperature of 150° C. to 300° C. and a pressure of 20 bar to 300 bar and subjecting the resulting crude hydrogenation product to distillation, and the amount of C4 to C13 monohydroxy compounds present in the crude hydrogenation product after the hydrogenation being greater than the amount of C4 to C13 monohydroxy compounds given stoichiometrically from the hydrogenation of the ester and aldehyde compounds present in the bottom fraction, including the C4 to C13 monohydroxy compounds still present in the bottom fraction before the hydrogenation.Type: GrantFiled: May 14, 2018Date of Patent: May 25, 2021Assignee: BASF SEInventors: Stephan Zuend, Rainer Papp, Boris Breitscheidel, Armin Lange De Oliveira
-
Publication number: 20210078925Abstract: A process for preparing C4 to C10 monohydroxy compounds from a bottom fraction arising in the distillation of a crude mixture of C4 to C10 oxo-process aldehydes from cobalt-catalyzed or rhodium-catalyzed hydroformylation, or in the distillation of a crude mixture of C4 to C10 oxo-process alcohols, which comprises contacting the bottom fraction in the presence of hydrogen with a catalyst comprising copper oxide and aluminum oxide, at a temperature of 150° C. to 300° C. and a pressure of 20 bar to 300 bar and subjecting the resulting crude hydrogenation product to distillation, and the amount of C4 to C10 monohydroxy compounds present in the crude hydrogenation product after the hydrogenation being greater than the amount of C4 to C10 monohydroxy compounds given stoichiometrically from the hydrogenation of the ester and aldehyde compounds present in the bottom fraction, including the C4 to C10 monohydroxy compounds still present in the bottom fraction before the hydrogenation.Type: ApplicationFiled: May 14, 2018Publication date: March 18, 2021Inventors: Stephan ZUEND, Rainer PAPP, Boris BREITSCHEIDEL, Armin LANGE DE OLIVEIRA
-
Patent number: 10385422Abstract: Method of removing cobalt deposits in a reactor for the cobalt-catalyzed high-pressure hydroformylation of olefins by treatment with aqueous nitric acid, wherein the reactor is at least partly filled with aqueous nitric acid and the temperature of the aqueous nitric acid is increased during the treatment.Type: GrantFiled: July 30, 2014Date of Patent: August 20, 2019Assignee: BASF SEInventors: Jens Rudolph, Rainer Papp
-
Patent number: 10315182Abstract: Proposed is a cylindrical reactor (1) having a vertical longitudinal axis for continuous hydroformylation of a C6-C20-olefin or a mixture of C6-C20-olefins with synthesis gas in the presence of a homogeneously dissolved metal carbonyl complex catalyst, having a multiplicity of Field tubes (2) which are oriented parallel to the longitudinal axis of the reactor (1) and welded into a tube plate at the upper end of the reactor (1), having a circulation tube (3) open at both ends which envelops the Field tubes (2) and at its lower end projects beyond said tubes, having a jet nozzle (4) at the bottom of the reactor (1) for injecting the reactant mixture comprising the C6-C20-olefin, the synthesis gas and the metal carbonyl complex catalyst, wherein the Field tubes (2) are configured in terms of their number and their dimensions such that the total heat exchanger area of said tubes per unit internal volume of the reactor is in the range from 1 m2/m3 to 11 m2/m3 and the cross sectional area occupied by the Field tType: GrantFiled: December 21, 2016Date of Patent: June 11, 2019Assignee: BASF SEInventors: Rainer Papp, Oliver Christian Gobin, Oliver Bey, Jens Rudolph, Hans-Günter Thelen
-
Publication number: 20190001298Abstract: Proposed is a cylindrical reactor (1) having a vertical longitudinal axis for continuous hydroformylation of a C6-C20-olefin or a mixture of C6-C20-olefins with synthesis gas in the presence of a homogeneously dissolved metal carbonyl complex catalyst, having a multiplicity of Field tubes (2) which are oriented parallel to the longitudinal axis of the reactor (1) and welded into a tube plate at the upper end of the reactor (1), having a circulation tube (3) open at both ends which envelops the Field tubes (2) and at its lower end projects beyond said tubes, having a jet nozzle (4) at the bottom of the reactor (1) for injecting the reactant mixture comprising the C6-C20-olefin, the synthesis gas and the metal carbonyl complex catalyst, wherein the Field tubes (2) are configured in terms of their number and their dimensions such that the total heat exchanger area of said tubes per unit internal volume of the reactor is in the range from 1 m2/m3 to 11 m2/m3 and the cross sectional area occupied by the Field tType: ApplicationFiled: December 21, 2016Publication date: January 3, 2019Inventors: Rainer PAPP, Oliver Christian GOBIN, Oliver BEY, Jens RUDOLPH, Hans-Günter THELEN
-
Publication number: 20160265084Abstract: Method of removing cobalt deposits in a reactor for the cobalt-catalyzed high-pressure hydroformylation of olefins by treatment with aqueous nitric acid, wherein the reactor is at least partly filled with aqueous nitric acid and the temperature of the aqueous nitric acid is increased during the treatment.Type: ApplicationFiled: July 30, 2014Publication date: September 15, 2016Inventors: Jens RUDOLPH, Rainer PAPP
-
Patent number: 9266808Abstract: The present invention relates to a process for preparing hydroformylation products of olefins having at least four carbon atoms, in which a high proportion of both the linear Ci-olefins having a terminal double bond comprised in the olefin-comprising feed used and of the linear Ci-olefins having an internal double bond is converted into hydroformylation products. Furthermore, the invention relates to a process for preparing 2-propylheptanol which comprises such a hydroformylation process.Type: GrantFiled: November 29, 2007Date of Patent: February 23, 2016Assignee: BASF SEInventors: Marcus Sigl, Frank Poplow, Rainer Papp, Thomas Mackewitz, Dag Wiebelhaus, Rocco Paciello, Thomas Heldemann, Frank Heimann, Stefan Bitterlich, Martin Volland, Sven Crone, Christoph Obler
-
Patent number: 9115069Abstract: In the hydroformylation of olefins having 6 to 20 carbon atoms in the presence of a cobalt catalyst in the presence of an aqueous phase with thorough mixing in a reactor, a hydroformylation products-containing first stream is withdrawn at the top of the reactor and an aqueous phase-containing second stream is withdrawn from the bottom of the reactor. The flow rate of the second stream is controlled in accordance with a temperature which is measured at a point in the bottom of the reactor or in a line leading out of the bottom of the reactor. The yield of crude hydroformylation product is increased as a result of stable sustained operation.Type: GrantFiled: November 17, 2014Date of Patent: August 25, 2015Assignee: BASF SEInventors: Rainer Papp, Jens Rudolph, Hans-Günter Thelen, Klaus Diehl
-
Publication number: 20150141702Abstract: In the hydroformylation of olefins having 6 to 20 carbon atoms in the presence of a cobalt catalyst in the presence of an aqueous phase with thorough mixing in a reactor, a hydroformylation products-containing first stream is withdrawn at the top of the reactor and an aqueous phase-containing second stream is withdrawn from the bottom of the reactor. The flow rate of the second stream is controlled in accordance with a temperature which is measured at a point in the bottom of the reactor or in a line leading out of the bottom of the reactor. The yield of crude hydroformylation product is increased as a result of stable sustained operation.Type: ApplicationFiled: November 17, 2014Publication date: May 21, 2015Inventors: Rainer Papp, Jens Rudolph, Hans-Günter Thelen, Klaus Diehl
-
Patent number: 9006495Abstract: The present invention relates to a process for the catalytic aldol condensation of aldehydes, in particular for preparing ?,?-unsaturated aldehydes, in a multiphase reactor.Type: GrantFiled: November 27, 2013Date of Patent: April 14, 2015Assignee: BASF SEInventors: Roland Krokoszinski, Steffen Oehlenschläger, Rainer Papp, Jens Rudolph, Armin Ulonska
-
Publication number: 20140155656Abstract: The present invention relates to a process for the catalytic aldol condensation of aldehydes, in particular for preparing ?,?-unsaturated aldehydes, in a multiphase reactor.Type: ApplicationFiled: November 27, 2013Publication date: June 5, 2014Applicant: BASF SEInventors: Roland Krokoszinski, Steffen Oehlenschläger, Rainer Papp, Jens Rudolph, Armin Ulonska
-
Patent number: 8680353Abstract: A process for preparing oligomers by continuous oligomerization of butenes is described, wherein a) a feed stream 1) comprising 1-butene and 2-butene in a total concentration of from 10 to 70% by weight and from 10 to 60% by weight of isobutane is reacted until more than 60% by weight of the 1-butene comprised in the feed stream 1 but less than 50% by weight of the 2-butene comprised in feed stream 1 have been converted into oligomers. b) The oligomers obtained in a) are separated off and optionally passed to a further work-up and the remaining residual stream is fed to work-up by distillation. c) Isobutane is separated off by distillation from the residual stream, and d) the isobutane-depleted stream obtained after the work-up by distillation c) is reacted to form oligomers.Type: GrantFiled: November 19, 2012Date of Patent: March 25, 2014Assignee: BASF SEInventors: Sven Crone, Oliver Ryll, Till Blum, Alexander Weck, Rainer Papp, Roland Krokoszinski, Heinrich-Josef Blankertz
-
Publication number: 20130131416Abstract: Process for preparing oligomers by continuous oligomerization of butenes, wherein a) a feed stream comprising 1-butene and 2-butene in a total concentration of from 10 to 70% by weight and from 10 to 60% by weight of isobutane is used (hereinafter referred to as feed stream 1), b) this feed stream 1 is reacted until more than 60% by weight of the 1-butene comprised in the feed stream 1 but less than 50% by weight of the 2-butene comprised in feed stream 1 have been converted into oligomers, c) the oligomers obtained in b) are separated off and optionally passed to a further work-up and the remaining residual stream is fed to work-up by distillation, d) isobutane is separated off by distillation from the residual stream, e) the isobutane-depleted stream obtained after the work-up by distillation d) (hereinafter referred to as feed stream 2) is reacted to form oligomers.Type: ApplicationFiled: November 19, 2012Publication date: May 23, 2013Inventors: Sven CRONE, Oliver RYLL, Till BLUM, Alexander WECK, Rainer PAPP, Roland KROKOSZINSKI, Heinrich-Josef BLANKERTZ
-
Patent number: 8404903Abstract: A process of controlling heavies in a recycle catalyst stream, particularly, for use in a continuous hydroformylation process of converting an olefin with synthesis gas in the presence of a hydroformylation catalyst to form an aldehyde product stream with subsequent separation of the catalyst for recycle to the hydroformylation step. Heavies are controlled, and preferably reduced, by means of feeding a recycle gas stream, taken as a portion of an over-head stream from a condenser, back to a vaporizer wherein the aldehyde product stream is separated.Type: GrantFiled: July 2, 2009Date of Patent: March 26, 2013Assignees: Dow Technology Investments, LLC, BASF SEInventors: Irvin B. Cox, Thomas C. Eisenschmid, Ronald R. Peterson, Rainer Papp, Ludwig Herk, Anthony G. Abatjoglou