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公开(公告)号:US20210403447A1
公开(公告)日:2021-12-30
申请号:US17056741
申请日:2019-05-08
申请人: BASF SE , Kolon Plastics Inc.
发明人: Thomas HEITZ , Marvin KRAMP , Manfred HEILIG , HyunSoo CHANG , JongMoon KIM , In Gi CHO
IPC分类号: C07D317/12
摘要: The present invention relates to a process for preparing dioxolane by reacting ethylene glycol with an aqueous solution of formaldehyde in the presence of an acid catalyst. The raw product comprising water, dioxolane and methanol is fed to a phase separation unit (20) wherein an organic extracting agent is present. An organic fraction stream from the phase separation unit is transferred to an upper part of a purification column (30) from which dioxolane is withdrawn as a bottom product while the distillate stream of the purification column is recycled to the phase separation unit. An aqueous fraction stream from the phase separation unit is transferred to a waste water column (40), withdrawing a waste water stream from the bottom of the waste water column, withdrawing a side stream (42) from a stage between the feed stage and the reflux stage of the waste water column and recycling this stream (42) to the phase separation unit, and withdrawing a distillate stream (43) containing methanol from the waste water column.
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公开(公告)号:US20220073490A1
公开(公告)日:2022-03-10
申请号:US17056750
申请日:2019-05-08
申请人: BASF SE , Kolon Plastics Inc.
发明人: Thomas HEITZ , Marvin KRAMP , Manfred HEILIG , HyunSoo CHANG , JongMoon KIM , In Gi CHO
IPC分类号: C07D317/12
摘要: The present invention relates to a process for preparing dioxolane by reacting ethylene glycol with an aqueous solution of formaldehyde in the presence of an acid catalyst. The raw product comprising water, dioxolane and methanol is fed to a phase separation unit (20) wherein an organic extracting agent is present. An organic fraction stream from the phase separation unit is transferred to an upper part of a purification column (30) from which dioxolane is withdrawn as a bottom product while the distillate stream of the purification column is recycled to the phase separation unit. An aqueous fraction stream from the phase separation unit is transferred to a waste water column (40), withdrawing a waste water stream from the bottom of the waste water column, recycling a distillate stream (42) from the waste water column to the phase separation unit, and withdrawing a side stream (43) containing methanol from a stage below the feed stage of the waste water column.
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公开(公告)号:US20200261823A1
公开(公告)日:2020-08-20
申请号:US16062752
申请日:2016-12-07
申请人: BASF SE , Kolon Plastics Inc.
发明人: Achim STAMMER , Thomas HEITZ , Marvin KRAMP , Jong-Moon KIM , In-Gi CHO , Jin-Sang CHOI , Sang-Yup LEE
IPC分类号: B01D3/00 , C07D323/06
摘要: The present invention relates to a process for energy recovery in a process for the preparation of 1,3,5-trioxane.
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公开(公告)号:US20190210989A1
公开(公告)日:2019-07-11
申请号:US16315680
申请日:2017-07-19
申请人: BASF SE
发明人: Joaquim Henrique TELES , Marvin KRAMP , Christian MUELLER , Nicolai Tonio WOERZ , Bernd METZEN , Tobias KELLER , Dominic RIEDEL , Markus WEBER , Daniel URBANCZYK , Andrei-Nicolae PARVULESCU , Ulrike WEGERLE , Ulrich MUELLER
IPC分类号: C07D301/32 , C07D301/12 , C07D303/04
摘要: Disclosed herein is a process for purifying propylene oxide, including the steps of: (i) providing a stream S0 containing propylene oxide, acetonitrile, water, and an organic compound containing a carbonyl group —C(═O)—; and (ii) separating propylene oxide from the stream S0 by subjecting the stream S0 to distillation conditions in a distillation column to obtain a gaseous top stream S1c which is enriched in propylene oxide compared to the stream S0, a liquid bottoms stream S1a which is enriched in acetonitrile and water compared to the stream S0, and a side stream S1b containing propylene oxide which is enriched in the carbonyl compound compared to the stream S0.
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公开(公告)号:US20210002241A1
公开(公告)日:2021-01-07
申请号:US16500313
申请日:2018-04-13
申请人: BASF SE
发明人: Nicolai Tonio WOERZ , Ulrich MUELLERE , 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
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:US20190169149A1
公开(公告)日:2019-06-06
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 , B01D3/00 , B01D3/40 , B01D3/14 , B01D5/00
CPC分类号: C07D301/32 , B01D1/28 , B01D3/00 , B01D3/009 , B01D3/143 , B01D3/40 , B01D5/006 , B01J29/085 , B01J29/7038 , B01J29/86 , B01J29/89 , B01J35/002 , B01J35/023 , B01J37/0045 , B01J2229/186 , B01J2229/42 , C07D301/12 , C07D303/04 , Y02P20/127 , Y02P20/52
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:US20190322634A1
公开(公告)日:2019-10-24
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. WITZI
IPC分类号: C07D301/32 , C07D303/04 , B01D3/14
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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