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公开(公告)号：US10676451B2
公开(公告)日：2020-06-09
申请号：US16315345
申请日：2017-07-19
发明人： Joaquim Henrique Teles , Marvin Kramp , Christian Mueller , Nicolai Tonio Woerz , Bernd Metzen , Tobias Keller , Dominic Riedel , Heiner Schelling , Markus Weber , Daniel Urbanczyk , Andrei-Nicolae Parvulescu , Ulrike Wegerle , Ulrich Mueller , Meinolf Weidenbach , Werner J. Witzl
IPC分类号： C07D301/32 , B01D3/14 , C07D303/04
摘要： Disclosed is a process for purifying propylene oxide. A stream S0 containing propylene oxide, acetonitrile, water, and an organic compound containing one or more of acetone and propionaldehyde is provided. Propylene oxide is separated from S0 by subjecting S0 to distillation in a first distillation unit, obtaining a gaseous top stream S1c enriched in propylene oxide, a liquid bottom stream S1a enriched in acetonitrile and water, and a side stream S1b containing propylene oxide and enriched in the carbonyl compound; reacting the carbonyl compound in S1b with an organic compound containing an amino group to obtain a reaction product; separating propylene oxide from the reaction product in a second distillation unit, obtaining a gaseous top stream S3a enriched in propylene oxide and a liquid bottoms stream S3b enriched in the reaction product; and introducing stream S3a into the first distillation unit.
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公开(公告)号：US10316007B2
公开(公告)日：2019-06-11
申请号：US15521924
申请日：2015-10-27
发明人： Joaquim Henrique Teles , Dominic Riedel , Bianca Seelig , Philip Kampe , Markus Weber , Alexander Schroeder , Andrei-Nicolae Parvulescu , Ulrich Mueller , Daniel Urbanczyk , Meinolf Weidenbach , Werner J. Witzl , Holger Baer
IPC分类号： C07D301/12 , B01D3/14 , C07D301/32 , C07D303/04
摘要： A continuous process for preparing propylene oxide proceeds by (a) reacting propene with hydrogen peroxide in a reaction apparatus in the presence acetonitrile as solvent, obtaining a stream S0 containing propylene oxide, acetonitrile, water, at least one further component B; (b) separating propylene oxide from S0, obtaining stream S1 containing acetonitrile, water and B; (c) dividing S1 into streams S2 and S3; (d) subjects S3 to vapor-liquid fractionation in a first fractionation unit, obtaining vapor fraction stream S4a being depleted, relative to S3, of at least one of B and obtaining liquid bottoms stream S4b, and subjecting at least part of vapor fraction stream S4a to vapor-liquid fractionation in a second fractionation unit, obtaining vapor fraction stream S4c and liquid bottoms stream S4 being depleted, relative to S4a, of at least one of B; (e) recycling at least a portion of S4 to (a).
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公开(公告)号：US09943838B2
公开(公告)日：2018-04-17
申请号：US14907714
申请日：2014-07-16
发明人： Andrei-Nicolae Parvulescu , Ulrich Mueller , Joaquim Henrique Teles , Bianca Seelig , Philip Kampe , Markus Weber , Peter Resch , Christian Bartosch , Dominic Riedel , Daniel Urbanczyk , Alexander Schroeder , Ulrike Wegerle
IPC分类号： C07D301/12 , B01J29/90 , B01J37/06 , B01J37/10 , B01J38/48 , B01J29/70 , B01J29/89 , B01J35/00 , B01J37/00 , B01J37/02 , C07D303/04 , B01J37/08 , B01J37/30 , B01J38/02 , B01J38/06
CPC分类号： B01J29/90 , B01J29/7088 , B01J29/89 , B01J35/00 , B01J37/0009 , B01J37/0045 , B01J37/0201 , B01J37/0203 , B01J37/06 , B01J37/08 , B01J37/10 , B01J37/30 , B01J38/02 , B01J38/06 , B01J38/48 , B01J2229/183 , B01J2229/186 , B01J2229/42 , C07D301/12 , C07D303/04 , Y02P20/584
摘要： The present invention relates to a process for the regeneration of a catalyst comprising a titanium-containing zeolite, said catalyst having been used in a process for the preparation of an olefin oxide and having phosphate deposited thereon, said process for the regeneration comprising the steps: (a) separating the reaction mixture from the catalyst, (b) washing the catalyst obtained from (a) with liquid aqueous system; (c) optionally drying the catalyst obtained from (b) in a gas stream comprising an inert gas at a temperature of less than 300° C.; (d) calcining the catalyst obtained from (c) in a gas stream comprising oxygen at a temperature of at least 300° C.
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公开(公告)号：US09732054B2
公开(公告)日：2017-08-15
申请号：US15246028
申请日：2016-08-24
发明人： Joaquim Henrique Teles , Dominic Riedel , Bianca Seelig , Philip Kampe , Daniel Urbanczyk , Markus Weber , Alexander Schroeder , Andrei-Nicolae Parvulescu , Ulrich Mueller , Meinolf Weidenbach , Werner J. Witzl , Holger Baer
IPC分类号： C07D301/12 , B01D3/14 , C07D301/32
CPC分类号： C07D301/12 , B01D3/143 , C07D301/32
摘要： A continuous process for the preparation of propylene oxide, comprising (a) reacting propene, optionally admixed with propane, with hydrogen peroxide in a reaction apparatus in the presence of acetonitrile as solvent, obtaining a stream S0 containing propylene oxide, acetonitrile, water, at least one further component B, optionally propene and optionally propane, wherein the normal boiling point of the at least one component B is higher than the normal boiling point of acetonitrile and wherein the decadic logarithm of the octanol-water partition coefficient (log Kow) of the at least one component B is greater than zero; (b) separating propylene oxide from S0, obtaining a stream S1 containing acetonitrile, water and the at least one further component B; (c) dividing S1 into two streams S2 and S3; (d) subjecting S3 to a vapor-liquid fractionation in a fractionation unit, obtaining a vapor fraction stream S4 being depleted of the at least one component B; (e) recycling at least a portion of S4, optionally after work-up, to (a).
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公开(公告)号：US10435381B2
公开(公告)日：2019-10-08
申请号：US16318221
申请日：2017-07-19
发明人： Joaquim Henrique Teles , Marvin Kramp , Christian Mueller , Nicolai Tonio Woerz , Bernd Metzen , Tobias Keller , Dominic Riedel , Heiner Schelling , Markus Weber , Daniel Urbanczyk , Andrei-Nicolae Parvulescu , Ulrike Wegerle , Ulrich Mueller , Meinolf Weidenbach , Werner J. Witzl , Karsten Luecke
IPC分类号： C07D301/32 , C07D301/12 , C07D303/04 , B01D3/00 , B01D3/14 , B01D5/00 , B01D3/40 , B01J29/08
摘要： The present invention is related to a process for preparing propylene oxide, comprising (i) providing a stream comprising propene, hydrogen peroxide or a source of hydrogen peroxide, water, and an organic solvent; (ii) passing the liquid feed stream provided in (i) into an epoxidation zone comprising an epoxidation catalyst comprising a titanium zeolite, and subjecting the liquid feed stream to epoxidation reaction conditions in the epoxidation zone, obtaining a reaction mixture comprising propene, propylene oxide, water, and the organic solvent; (iii) removing an effluent stream from the epoxidation zone, the effluent stream comprising propylene oxide, water, organic solvent, and propene; (iv) separating propene from the effluent stream by distillation, comprising (iv.1) subjecting the effluent stream to distillation conditions in a distillation unit, obtaining a gaseous top stream S0 enriched in propene compared to the effluent stream subjected to distillation conditions, and a liquid bottoms stream S01 enriched in propylene oxide, water and organic solvent compared to the effluent stream subjected to distillation conditions; (iv.2) returning a condensed portion of the stream S0 to an upper part of the distillation unit.
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公开(公告)号：US09688648B2
公开(公告)日：2017-06-27
申请号：US14906852
申请日：2014-07-16
发明人： Joaquim Henrique Teles , Bianca Seelig , Dominic Riedel , Philip Kampe , Daniel Urbanczyk , Markus Weber , Ulrich Mueller , Andrei-Nicolae Parvulescu , Alexander Schroeder , Meinolf Weidenbach , Werner Witzl
IPC分类号： C07D301/03 , C07D301/36 , B01J37/10 , B01J29/70 , B01J29/89 , B01J35/00 , B01J37/00 , B01J37/02 , C07D301/12 , C07D303/04 , B01J23/06 , B01J35/02 , B01J27/18
CPC分类号： C07D301/36 , B01J23/06 , B01J27/18 , B01J29/7088 , B01J29/89 , B01J35/00 , B01J35/0006 , B01J35/023 , B01J35/026 , B01J37/0009 , B01J37/0045 , B01J37/0201 , B01J37/10 , B01J2229/186 , B01J2229/42 , C07D301/12 , C07D303/04 , Y02P20/52
摘要： A continuous process for the preparation of propylene oxide, comprising (i) providing a liquid feed stream comprising propene, hydrogen peroxide, acetonitrile, water, dissolved potassium dihydrogen phosphate, and optionally propane; (ii) passing the liquid feed stream provided in (i) into an epoxidation reactor comprising a catalyst comprising a titanium zeolite of structure type MWW, and subjecting the liquid feed stream to epoxidation reaction conditions; (iii) removing an effluent stream from the epoxidation reactor; wherein the concentration of the dissolved potassium dihydrogen phosphate in the liquid feed stream is at least 10% of the solubility limit of the potassium dihydrogen phosphate in the liquid feed stream.
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公开(公告)号：US09725428B2
公开(公告)日：2017-08-08
申请号：US14907998
申请日：2014-07-16
发明人： Joaquim Henrique Teles , Bianca Seelig , Dominic Riedel , Philip Kampe , Daniel Urbanczyk , Markus Weber , Ulrich Mueller , Andrei-Nicolae Parvulescu , Kai Gumlich , Peter Bassler , Christian Bartosch , Richard Jacubinas , Meinolf Weidenbach , Werner Witzl
IPC分类号： C07D303/00 , C07D301/12 , B01J29/70 , B01J35/00 , B01J35/10 , B01J27/18 , B01J27/188
CPC分类号： C07D301/12 , B01J27/18 , B01J27/188 , B01J29/7038 , B01J29/7088 , B01J35/002 , B01J35/1019 , B01J2229/186 , Y02P20/52
摘要： A continuous process for the preparation of propylene oxide, comprising (i) providing a liquid feed stream comprising propene, hydrogen peroxide, acetonitrile, water, optionally propane, and at least one dissolved potassium salt of a phosphorus oxyacid wherein the molar ratio of potassium relative to phosphorus in the at least one potassium salt of a phosphorus oxyacid is in the range of from 0.6 to 1.4; (ii) passing the liquid feed stream provided in (i) into an epoxidation reactor comprising a catalyst comprising a titanium zeolite of structure type MWW comprising zinc, and subjecting the liquid feed stream to epoxidation reaction conditions in the epoxidation reactor, obtaining a reaction mixture comprising propylene oxide, acetonitrile, water, the at least one dissolved potassium salt of a phosphorus oxyacid, optionally propene, and optionally propane; (iii) removing an effluent stream from the epoxidation reactor, the effluent stream comprising propylene oxide, acetonitrile, water, at least a portion of the at least one dissolved potassium salt of a phosphorus oxyacid, optionally propene, and optionally propane.
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公开(公告)号：US20160362387A1
公开(公告)日：2016-12-15
申请号：US15246028
申请日：2016-08-24
发明人： Joaquim H. Teles , Dominic Riedel , Bianca Seelig , Philip Kampe , Daniel Urbanczyk , Markus Weber , Alexander Schroeder , Andrei-Nicolae Parvulescu , Ulrich Mueller , Meinolf Weidenbach , Werner Witzl , Holger Baer
IPC分类号： C07D301/12 , B01D3/14 , C07D301/32
CPC分类号： C07D301/12 , B01D3/143 , C07D301/32
摘要： A continuous process for the preparation of propylene oxide, comprising (a) reacting propene, optionally admixed with propane, with hydrogen peroxide in a reaction apparatus in the presence of acetonitrile as solvent, obtaining a stream S0 containing propylene oxide, acetonitrile, water, at least one further component B, optionally propene and optionally propane, wherein the normal boiling point of the at least one component B is higher than the normal boiling point of acetonitrile and wherein the decadic logarithm of the octanol-water partition coefficient (log Kow) of the at least one component B is greater than zero; (b) separating propylene oxide from S0, obtaining a stream S1 containing acetonitrile, water and the at least one further component B; (c) dividing S1 into two streams S2 and S3; (d) subjecting S3 to a vapor-liquid fractionation in a fractionation unit, obtaining a vapor fraction stream S4 being depleted of the at least one component B; (e) recycling at least a portion of S4, optionally after work-up, to (a).
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公开(公告)号：US11180467B2
公开(公告)日：2021-11-23
申请号：US16500313
申请日：2018-04-13
申请人： BASF SE
发明人： Nicolai Tonio Woerz , Ulrich Mueller , Andrei-Nicolae Parvulescu , Dominic Riedel , Marvin Kramp , Daniel Urbanczyk , Ulrike Wegerle , Christian Mueller , Bernd Metzen , Markus Weber , Joaquim Henrique Teles
IPC分类号： C07D301/32 , C07D301/19 , C07D301/12
摘要： The invention relates to a process for preparing propylene oxide, comprising (i) providing a stream comprising propene, propane, hydrogen peroxide or a source of hydrogen peroxide, water, and an organic solvent; (ii) passing the liquid feed stream provided in (i) into an epoxidation zone comprising an epoxidation catalyst comprising a titanium zeolite, and subjecting the liquid feed stream to epoxidation reaction conditions in the epoxidation zone, obtaining a reaction mixture comprising propene, propane, propylene oxide, water, and the organic solvent; (iii) removing an effluent stream from the epoxidation zone, the effluent stream comprising propene, propane, propylene oxide, water, and the organic solvent; (iv) separating propene and propane from the effluent stream by distillation, comprising subjecting the effluent stream to distillation conditions in a distillation unit, obtaining a gaseous stream (S1) which is enriched in propene and propane compared to the effluent stream subjected to distillation conditions, and a liquid bottoms stream (S2) which is enriched in propylene oxide, water and organic solvent compared to the effluent stream subjected to distillation conditions; (v) separating propane from the stream (S1) in a separation zone, comprising subjecting the stream (S1) to washing conditions in a scrubber, wherein a solvent mixture comprising organic solvent and water is added as entraining agent, obtaining a bottoms stream (S3), which comprises organic solvent, water and at least 70 weight-% of the propene comprised in (S1); and a gaseous top stream (S4), which comprises at least 5 weight-% of the propane comprised in stream (S1).
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公开(公告)号：US10144681B2
公开(公告)日：2018-12-04
申请号：US14150239
申请日：2014-01-08
申请人： BASF SE
发明人： Jan Pablo Josch , Alexander Weck , Sonja Giesa , Steffen Bütehorn , Ragavendra Prasad Balegedde Ramachandran , Regina Benfer , Markus Weber
摘要： A process for the oxidative dehydrogenation of n-butenes to butadiene is disclosed herein, in which the formation of butadiene peroxides from butadiene in the work-up of the product gas mixture from the oxidative dehydrogenation is effectively prevented.
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