Patents by Inventor Till Adrian
Till Adrian has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7462277Abstract: In a continuous process for fractionating a C4 fraction (C4) by extractive distillation using a selective solvent (LM) in an extractive distillation column (EDK), it is proposed that a dividing wall (TW) is installed in the longitudinal direction in the extractive distillation column (EDK) to form a first region (A), a second region (B) and a lower combined column region (C) and a top stream (C4H10) comprising the butanes is taken off from the first region (A), a top stream (C4H8) comprising the butenes is taken off from the second region (B) and a stream (C4H6) comprising the hydrocarbons from the C4 fraction which are more soluble in the selective solvent (LM) than are the butanes and the butenes is taken off from the lower combined column region (C).Type: GrantFiled: July 22, 2003Date of Patent: December 9, 2008Assignee: BASF AktiengesellschaftInventors: Till Adrian, Thomas Hill, Klaus Kindler, Bernd Heida
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Patent number: 7432411Abstract: A continuous process for isolating butenes from a C4 fraction comprising butanes, butenes and other C3-C5-hydrocarbons by extractive distillation using a selective solvent (LM), comprising a first process stage I in a scrubbing zone (E) and a second process stage II in a degassing zone (A), wherein the liquid or a substream of the liquid is taken off from the degassing zone (A) at a theoretical plate located one or more theoretical plates below the feed point for the bottom stream (LM/C4H8) from the scrubbing zone (E), heated and/or vaporized by indirect heat exchange with the hot bottom stream (LM) from the degassing zone (A) and returned to the degassing zone (A) at the same theoretical plate or above this, with the theoretical plate from which the liquid or substream of liquid is taken off being selected so that the total energy requirement in the process stages I and II is minimized, is proposed.Type: GrantFiled: April 29, 2003Date of Patent: October 7, 2008Assignee: BASF AktiengesellschaftInventors: Till Adrian, Bernd Heida, Klaus Kindler
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Patent number: 7241365Abstract: The invention relates to an apparatus and a process for the preparation of anhydrous or substantially anhydrous formic acid. This apparatus is constructed partly or entirely of substantially zirconium-free materials. The extractant employed is a liquid of the general formula I where the radicals R1 and R2 are alkyl, cycloalkyl, aryl or aralkyl groups, or R1 and R2 jointly, together with the N atom, form a heterocyclic 5- or 6-membered ring, and only one of the radicals is an aryl group, and where R3 is hydrogen or a C1–C4-alkyl group. The apparatus has a synthesis reactor (6), a hydrolysis reactor (1), three distillation devices (2,4,5) and an extraction device (3).Type: GrantFiled: January 24, 2001Date of Patent: July 10, 2007Assignee: BASF AktiengesellschaftInventors: Heinz Auer, Bernd Bessling, Hans Hammer, Hans Hasse, Friedrich Sauer, Maximilian Vicari, Gerhard Wagner, Till Adrian
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Publication number: 20060021911Abstract: In a continuous process for fractionating a C4 fraction (C4) by extractive distillation using a selective solvent (LM) in an extractive distillation column (EDK), it is proposed that a dividing wall (TW) is installed in the longitudinal direction in the extractive distillation column (EDK) to form a first region (A), a second region (B) and a lower combined column region (C) and a top stream (C4H10) comprising the butanes is taken off from the first region (A), a top stream (C4H8) comprising the butenes is taken off from the second region (B) and a stream (C4H6) comprising the hydrocarbons from the C4 fraction which are more soluble in the selective solvent (LM) than are the butanes and the butenes is taken off from the lower combined column region (C).Type: ApplicationFiled: July 22, 2003Publication date: February 2, 2006Inventors: Till Adrian, Thomas Hill, Klaus Kindler, Hernd Heida
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Patent number: 6943274Abstract: A process for preparing cyclohexanol from benzene by: a) preparing cyclohexene by hydrogenating benzene in the presence of a catalyst, and b) preparing cyclohexanol by hydrating the cyclohexene in the presence of a catalyst, comprises: carrying out steps a) and b) in a reaction facility which has a bottom region at the lower end, a top region at the upper end, and a reaction zone between the top region and the bottom region which contains the catalyst according to steps a) and b), evaporating a portion of the benzene using the heat of reaction in the reaction zone, condensing it in the top region and returning it to the reaction zone, and withdrawing a reaction mixture containing cyclohexanol in the bottom region.Type: GrantFiled: February 28, 2003Date of Patent: September 13, 2005Assignee: BASF AktiengesellschaftInventors: Werner Peschel, Till Adrian, Harald Rust, Arnd Böttcher, Thomas Hill, Ulrich Müller, Rainer Papp
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Publication number: 20050154246Abstract: A continuous process for isolating butenes from a C4 fraction comprising butanes, butenes and other C3-C5-hydrocarbons by extractive distillation using a selective solvent (LM), comprising a first process stage I in a scrubbing zone (E) and a second process stage II in a degassing zone (A), wherein the liquid or a substream of the liquid is taken off from the degassing zone (A) at a theoretical plate located one or more theoretical plates below the feed point for the bottom stream (LM/C4H8) from the scrubbing zone (E), heated and/or vaporized by indirect heat exchange with the hot bottom stream (LM) from the degassing zone (A) and returned to the degassing zone (A) at the same theoretical plate or above this, with the theoretical plate from which the liquid or substream of liquid is taken off being selected so that the total energy requirement in the process stages I and II is minimized, is proposed.Type: ApplicationFiled: April 29, 2003Publication date: July 14, 2005Applicant: Basf AktiengesellschaftInventors: Till Adrian, Bernd Heida, Klaus Kindler
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Publication number: 20050148803Abstract: A process for preparing cyclohexanol from benzene by a) preparing cyclohexene by hydrogenating benzene in the presence of a catalyst and b) preparing cyclohexanol by hydrating the cyclohexene in the presence of a catalyst, comprises carrying out steps a) and b) in a reaction facility which has a bottom region at the lower end, a top region at the upper end and a reaction zone between the top region and the bottom region which contains the catalyst according to steps a) and b), evaporating a portion of the benzene using the heat of reaction in the reaction zone, condensing it in the top region and returning it to the reaction zone, and withdrawing a reaction mixture containing cyclohexanol in the bottom region.Type: ApplicationFiled: February 28, 2003Publication date: July 7, 2005Inventors: Werner Peschel, Till Adrian, Harald Rust, Arnd Bottcher, Thomas Hill, Ulrich Muller, Rainer Papp
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Patent number: 6867329Abstract: The invention relates to a process for obtaining anhydrous or substantially anhydrous formic acid, in which firstly aqueous formic acid is prepared by hydrolysis of methyl formate and is freed from water in the subsequent work-up. The process has the special feature that steam, which is employed for the hydrolysis of methyl formate and for heating a distillation column serving for work-up, is also used as stripping steam for waste-water stripping. The stripped waste water is produced during work-up.Type: GrantFiled: January 12, 2001Date of Patent: March 15, 2005Assignee: BASF AktiengesellschaftInventors: Heinz Auer, Bernd Bessling, Hans Hammer, Hans Hasse, Friedrich Sauer, Maximilian Vicari, Till Adrian
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Patent number: 6841700Abstract: The invention relates to a process for obtaining anhydrous or substantially anhydrous formic acid, in which firstly aqueous formic acid is produced by hydrolysis of methyl formate, with the methanol content in the methyl formate having been reduced in advance. The process according to the invention has the special feature that—before the hydrolysis of the methyl formate—the methanol content of the methanol-containing methyl formate is reduced in a distillation column, this distillation column simultaneously being employed for other separation functions during work-up of the formic acid.Type: GrantFiled: January 12, 2001Date of Patent: January 11, 2005Assignee: BASF AktiengesellschaftInventors: Heinz Auer, Bernd Bessling, Hans Hammer, Hans Hasse, Friedrich Sauer, Maximilian Vicari, Till Adrian
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Patent number: 6838579Abstract: The invention relates to a process for obtaining anhydrous or substantially anhydrous formic acid in which, during the work-up, a compound of the general formula I where the radicals R1 and R2 are alkyl, cycloalkyl, aryl or aralkyl groups, or R1 and R2 jointly, together with the N atom, form a heterocyclic 5- or 6-membered ring, and only one of the radicals is an aryl group, and where R3 is hydrogen or a C1-C4-alkyl group, is employed simultaneously as extractant for formic acid and as antifoam for a distillation process.Type: GrantFiled: January 24, 2001Date of Patent: January 4, 2005Assignee: BASF AktiengesellschaftInventors: Heinz Auer, Bernd Bessling, Hans Hammer, Hans Hasse, Friedrich Sauer, Maximilian Vicari, Gerhard Wagner, Till Adrian
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Patent number: 6696603Abstract: The invention relates to a process for the preparation of anhydrous or substantially anhydrous formic acid. The process has the special feature that a liquid of the general formula I where the radicals R1 and R2 are alkyl, cycloalkyl, aryl or aralkyl groups, or R1 and R2 jointly, together with the N atom, form a heterocyclic 5- or 6-membered ring, and only one of the radicals is an aryl group, and where R3 is hydrogen or a C1-C4-alkyl group, employed as extractant is also employed as washing liquid for the offgases produced in the process.Type: GrantFiled: July 18, 2002Date of Patent: February 24, 2004Assignee: BASF AktiengesellschaftInventors: Heinz Auer, Bernd Bessling, Hans Hammer, Hans Hasse, Friedrich Sauer, Maximilian Vicari, Gerhard Wagner, Till Adrian
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Publication number: 20030181772Abstract: In a process for the work-up of a C4 fraction, comprising the process stepsType: ApplicationFiled: November 12, 2002Publication date: September 25, 2003Inventors: Gerald Meyer, Gerd Kaibel, Gerd Bohner, Klaus Kindler, Till Adrian, Karin Pickenaecker, Melanie Pahl, Thomas Hill
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Patent number: 6605192Abstract: A process for the distillative recovery of high purity monoethylene glycol from the hydrolysis, product of ethylene oxide by pressure dewatering, preferably in a battery, vacuum dewatering and subsequent purifying distillation, wherein during the vacuum dewatering an aqueous stream is withdrawn which contains-monoethylene glycol in a concentration below 1% by weight, preferably below 0.1% by weight, medium boilers and low boilers. The withdrawn aqueous stream is, optionally after further workup, removed from the system.Type: GrantFiled: March 20, 2001Date of Patent: August 12, 2003Assignee: BASF AktiengesellschaftInventors: Gerhard Theis, Till Adrian, Bernd Bessling, Hans Hasse, Frans Vansant
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Publication number: 20030116423Abstract: The invention relates to an apparatus and a process for the preparation of anhydrous or substantially anhydrous formic acid. This apparatus is constructed partly or entirely of substantially zirconium-free materials.Type: ApplicationFiled: July 23, 2002Publication date: June 26, 2003Inventors: Heinz Auer, Bernd Bessling, Hans Hammer, Hans Hasse, Friedrich Sauer, Maximilian Vicari, Gerhard Wagner, Till Adrian
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Publication number: 20030050506Abstract: The invention relates to a process for the preparation of anhydrous or substantially anhydrous formic acid.Type: ApplicationFiled: July 18, 2002Publication date: March 13, 2003Inventors: Heinz Auer, Bernd Bessling, Hans Hammer, Hans Hasse, Friedrich Sauer, Maximilian Vicari, Gerhard Wagner, Till Adrian
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Publication number: 20030036664Abstract: The invention relates to a process for obtaining anhydrous or substantially anhydrous formic acid, in which firstly aqueous formic acid is prepared by hydrolysis of methyl formate and is freed from water in the subsequent work-up. The process has the special feature that steam, which is employed for the hydrolysis of methyl formate and for heating a distillation column serving for work-up, is also used as stripping steam for waste-water stripping. The stripped waste water is produced during work-up.Type: ApplicationFiled: July 18, 2002Publication date: February 20, 2003Inventors: Heinz Auer, Bernd Bessling, Hans Hammer, Hans Hasse, Friedrich Sauer, Maximilian Vicari, Till Adrian
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Patent number: 6514388Abstract: A process for the distillative recovery of high purity monoethylene glycol from the hydrolysis product of ethylene oxide by pressure dewatering, vacuum dewatering and subsequent purifying distillation, which includes the pressure dewatering columns or at least the first pressure dewatering column of the battery (2, 3, 4) having a stripping section with at least one separating stage, preferably with from 2 to 10 separating stages, particularly preferably with from 3 to 6 stages, and a portion of the overhead stream of the pressure dewatering column(s) (2, 3, 4) having a stripping section being removed from the system.Type: GrantFiled: January 24, 2001Date of Patent: February 4, 2003Assignee: BASF AktiengesellschaftInventors: Till Adrian, Bernd Bessling, Hans Hasse, Frans Vansant, Gerhard Theis
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Publication number: 20030018216Abstract: The invention relates to a process for obtaining anhydrous or substantially anhydrous formic acid, in which firstly aqueous formic acid is produced by hydrolysis of methyl formate, with the methanol content in the methyl formate having been reduced in advance. The process according to the invention has the special feature that—before the hydrolysis of the methyl formate—the methanol content of the methanol-containing methyl formate is reduced in a distillation column, this distillation column simultaneously being employed for other separation functions during work-up of the formic acid.Type: ApplicationFiled: July 18, 2002Publication date: January 23, 2003Inventors: Heinz Auer, Bernd Bessling, Hans Hammer, Hans Hasse, Friedrich Sauer, Maximilian Vicari, Till Adrian
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Publication number: 20030009057Abstract: The invention relates to a process for obtaining anhydrous or substantially anhydrous formic acid in which, during the work-up, a compound of the general formula I 1Type: ApplicationFiled: July 18, 2002Publication date: January 9, 2003Inventors: Heinz Auer, Bernd Bessling, Hans Hammer, Hans Hasse, Friedrich Sauer, Maximilian Vicari, Gerhard Wagner, Till Adrian