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公开(公告)号:US06413379B1
公开(公告)日:2002-07-02
申请号:US09362911
申请日:1999-07-29
IPC分类号: B01D334
CPC分类号: C07C51/44 , Y10S203/22 , C07C57/04
摘要: A process for the continuous recovery of (meth)acrylic acid from a liquid starting mixture containing (meth)acrylic acid, a high-boiling organic solvent and low boilers, medium boilers and high boilers is proposed, the mixture being separated into a first part-stream (a), which, in addition to (meth)acrylic acid, contains the low boilers and a part each of the medium boilers and high boilers, and a second part-stream (b), which contains the predominant part of the (meth)acrylic acid and is completely or virtually completely free of low boilers, and the (meth)acrylic acid being recovered from the part-stream (b).
摘要翻译: 提出了从含有(甲基)丙烯酸,高沸点有机溶剂和低沸点,中等锅炉和高锅炉的液体起始混合物连续回收(甲基)丙烯酸的方法,将混合物分离成第一部分 流(a),除了(甲基)丙烯酸之外,其还包含低锅炉和中等锅炉和高锅炉的一部分,以及第二部分物流(b),其包含主要部分 (甲基)丙烯酸,完全或几乎完全不含低沸点物质,(甲基)丙烯酸从部分物流(b)回收。
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公开(公告)号:US06426433B1
公开(公告)日:2002-07-30
申请号:US09763225
申请日:2001-02-20
申请人: Otto Machhammer , Andreas Tenten , Harald Jachow , Susanne Haupt , Heiko Arnold , Signe Unverricht
发明人: Otto Machhammer , Andreas Tenten , Harald Jachow , Susanne Haupt , Heiko Arnold , Signe Unverricht
IPC分类号: C07C5116
CPC分类号: C07C51/215 , C07C45/33 , C07C45/35 , C07C51/252 , C07C47/22 , C07C57/04
摘要: In a process for the preparation of acrolein and/or acrylic acid from propane, the propane is subjected, in a first reaction stage, to a partial oxydehydrogenation with molecular oxygen under homogeneous and/or heterogeneous catalysis to give propene and the product gas mixture formed in the first reaction stage is then used for the preparation of acrolein and/or acrylic acid by gas-phase catalytic propene oxidation.
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公开(公告)号:US06423875B1
公开(公告)日:2002-07-23
申请号:US09763143
申请日:2001-02-20
申请人: Otto Machhammer , Andreas Tenten , Harald Jachow , Susanne Haupt , Heiko Arnold , Signe Unverricht
发明人: Otto Machhammer , Andreas Tenten , Harald Jachow , Susanne Haupt , Heiko Arnold , Signe Unverricht
IPC分类号: C07C4722
CPC分类号: C07C51/215 , C07C45/33 , C07C45/35 , C07C51/252 , C07C47/22 , C07C57/04
摘要: In a process for the preparation of acrolein and/or acrylic acid from propane, the propane is subjected, in a first reaction stage, to an oxydehydrogenation with molecular oxygen under homogeneous and/or heterogeneous catalysis to give propene and the product gas mixture formed in the first reaction stage is then used for the preparation of acrolein and/or acrylic acid by gas-phase catalytic propene oxidation.
摘要翻译: 在从丙烷制备丙烯醛和/或丙烯酸的方法中,丙烷在第一反应阶段中在均相和/或多相催化下用分子氧进行氧化脱氢,得到丙烯,产物气体混合物形成于 然后将第一反应阶段用于通过气相催化丙烯氧化制备丙烯醛和/或丙烯酸。
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公开(公告)号:US06388129B1
公开(公告)日:2002-05-14
申请号:US09763223
申请日:2001-02-20
申请人: Otto Machhammer , Andreas Tenten , Harald Jachow , Susanne Haupt , Heiko Arnold , Signe Unverricht
发明人: Otto Machhammer , Andreas Tenten , Harald Jachow , Susanne Haupt , Heiko Arnold , Signe Unverricht
IPC分类号: C07C5116
CPC分类号: C07C51/215 , C07C45/33 , C07C45/35 , C07C51/252 , Y02P20/582 , C07C47/22 , C07C57/04
摘要: In a process for the preparation of acrolein and/or acrylic acid from propane, the propane is subjected, in a first reaction stage, to a partial oxydehydrogenation with molecular oxygen under homogeneous and/or heterogeneous catalysis to give propene and the product gas mixture formed in the first reaction stage is then used for the preparation of acrolein and/or acrylic acid by gas-phase catalytic propene oxidation.
摘要翻译: 在从丙烷制备丙烯醛和/或丙烯酸的方法中,丙烷在第一反应阶段中在均相和/或非均相催化下用分子氧进行部分氧化脱氢,得到丙烯并形成产物气体混合物 然后在第一反应阶段用于通过气相催化丙烯氧化制备丙烯醛和/或丙烯酸。
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