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11.
公开(公告)号:EP3966298A1
公开(公告)日:2022-03-16
申请号:EP20723808.0
申请日:2020-04-28
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公开(公告)号:EP3962885A1
公开(公告)日:2022-03-09
申请号:EP20721513.8
申请日:2020-04-22
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公开(公告)号:EP3948179A1
公开(公告)日:2022-02-09
申请号:EP20715813.0
申请日:2020-03-27
发明人: UNGETHÜM, Frank , RÜTHER, Thomas
IPC分类号: G01F13/00 , G01F23/28 , G01F23/284 , G01F23/292 , G01F23/296 , G01S13/88 , G01S15/88 , G01F22/00 , B65D88/54 , B65G69/04 , B65G69/10
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公开(公告)号:EP3931165A1
公开(公告)日:2022-01-05
申请号:EP21713679.5
申请日:2021-03-25
发明人: LAPPE, Thomas , WILLMS, Eike
IPC分类号: C04B7/44
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公开(公告)号:EP3928049A1
公开(公告)日:2021-12-29
申请号:EP21721942.7
申请日:2021-04-30
发明人: DINKOVA Anna Ivanova , LEMKE Jost , LAMPE Karl , WILLMS Eike
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16.
公开(公告)号:EP3918262A1
公开(公告)日:2021-12-08
申请号:EP20820156.6
申请日:2020-12-09
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公开(公告)号:EP3917861A1
公开(公告)日:2021-12-08
申请号:EP20703694.8
申请日:2020-01-24
发明人: KIMMIG, Constantin
IPC分类号: B65D88/72
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18.
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公开(公告)号:EP3902637A1
公开(公告)日:2021-11-03
申请号:EP20715796.7
申请日:2020-03-25
发明人: LEUSCHEN, Guido , MALCHER, Florian
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公开(公告)号:EP3892349A1
公开(公告)日:2021-10-13
申请号:EP20168126.9
申请日:2020-04-06
发明人: KLEIBER. Michael , HOFEN. Willi
摘要: 1-methoxy-2-propanol and 2-methoxy-1-propanol are recovered from an aqueous effluent stream by liquid-liquid-extraction, followed by extractive distillation, distillation of methoxypropanols from the extraction solvent and distillative separation of the methoxypropanol isomers. Recovered extraction solvent is recycled to the extraction and extractive distillation steps. Heat transfer from recovered extraction solvent to the extract fed to the extractive distillation reduces energy demand of the process. A facility for this process comprises a countercurrent extraction column (1), an extractive distillation column (3), a solvent recovery distillation column (4), an isomer separation distillation column (5) and a heat exchanger (8) for transferring heat from recovered extraction solvent to the extract fed to the extractive distillation.
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