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公开(公告)号：FI81813C
公开(公告)日：1990-12-10
申请号：FI860913
申请日：1986-03-04
Applicant: MITSUI TOATSU CHEMICALS
Inventor： ASANUMA TADASHI , OHOKA TATUO , HINO MINORU , UCHIKAWA NOBUTAKA
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公开(公告)号：GB2173412B
公开(公告)日：1988-06-02
申请号：GB8605283
申请日：1986-03-04
Applicant: MITSUI TOATSU CHEMICALS
Inventor： ASANUMA TADASHI , OHOKA TATUO , HINO MINORU , UCHIKAWA NOBUTAKA
Abstract: A process for purifying a solvent suitable for use in the polymerization of an olefin in the presence of a Ziegler-Natta catalyst, which comprises feeding the polymerization solvent to a stage lower than a chimney tray of a multi-stage distillation column, said chimney tray being provided at a height between the top and bottom of the column, feeding an organoaluminum compound to a stage higher than the chimney tray, drawing out a condensate from the chimney tray, heating the condensate to produce heated vapor, introducing the heated vapor to the chimney tray or to a stage higher than the chimney tray but lower than the stage to which the organoaluminum compound has been fed, and drawing the solvent in a purified state from the top.
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公开(公告)号：AU564447B2
公开(公告)日：1987-08-13
申请号：AU5404686
申请日：1986-02-25
Applicant: MITSUI TOATSU CHEMICALS
Inventor： ASANUMA TADASHI , OHOKA TATUO , HINO MINORU , UCHIKAWA NOBUTAKA
Abstract: A process for purifying a solvent suitable for use in the polymerization of an olefin in the presence of a Ziegler-Natta catalyst, which comprises feeding the polymerization solvent to a stage lower than a chimney tray of a multi-stage distillation column, said chimney tray being provided at a height between the top and bottom of the column, feeding an organoaluminum compound to a stage higher than the chimney tray, drawing out a condensate from the chimney tray, heating the condensate to produce heated vapor, introducing the heated vapor to the chimney tray or to a stage higher than the chimney tray but lower than the stage to which the organoaluminum compound has been fed, and drawing the solvent in a purified state from the top.
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公开(公告)号：FI860913A
公开(公告)日：1986-09-06
申请号：FI860913
申请日：1986-03-04
Applicant: MITSUI TOATSU CHEMICALS
Inventor： ASANUMA TADASHI , OHOKA TATUO , HINO MINORU , UCHIKAWA NOBUTAKA
Abstract: A process for purifying a solvent suitable for use in the polymerization of an olefin in the presence of a Ziegler-Natta catalyst, which comprises feeding the polymerization solvent to a stage lower than a chimney tray of a multi-stage distillation column, said chimney tray being provided at a height between the top and bottom of the column, feeding an organoaluminum compound to a stage higher than the chimney tray, drawing out a condensate from the chimney tray, heating the condensate to produce heated vapor, introducing the heated vapor to the chimney tray or to a stage higher than the chimney tray but lower than the stage to which the organoaluminum compound has been fed, and drawing the solvent in a purified state from the top.
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公开(公告)号：FI860913A0
公开(公告)日：1986-03-04
申请号：FI860913
申请日：1986-03-04
Applicant: MITSUI TOATSU CHEMICALS
Inventor： ASANUMA TADASHI , OHOKA TATUO , HINO MINORU , UCHIKAWA NOBUTAKA
Abstract: A process for purifying a solvent suitable for use in the polymerization of an olefin in the presence of a Ziegler-Natta catalyst, which comprises feeding the polymerization solvent to a stage lower than a chimney tray of a multi-stage distillation column, said chimney tray being provided at a height between the top and bottom of the column, feeding an organoaluminum compound to a stage higher than the chimney tray, drawing out a condensate from the chimney tray, heating the condensate to produce heated vapor, introducing the heated vapor to the chimney tray or to a stage higher than the chimney tray but lower than the stage to which the organoaluminum compound has been fed, and drawing the solvent in a purified state from the top.
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Patent Agency Ranking
公开(公告)号：IN163530B
公开(公告)日：1988-10-08
申请号：IN144CA1986
申请日：1986-02-27
Applicant: MITSUI TOATSU CHEMICALS
Inventor： ASANUMA TADASHI , OHOKA TATUO , HINO MINORU , UCHIKAWA NOBUTAKA
Abstract: A process for purifying a solvent suitable for use in the polymerization of an olefin in the presence of a Ziegler-Natta catalyst, which comprises feeding the polymerization solvent to a stage lower than a chimney tray of a multi-stage distillation column, said chimney tray being provided at a height between the top and bottom of the column, feeding an organoaluminum compound to a stage higher than the chimney tray, drawing out a condensate from the chimney tray, heating the condensate to produce heated vapor, introducing the heated vapor to the chimney tray or to a stage higher than the chimney tray but lower than the stage to which the organoaluminum compound has been fed, and drawing the solvent in a purified state from the top.
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公开(公告)号：CA1277945C
公开(公告)日：1990-12-18
申请号：CA503278
申请日：1986-03-04
Applicant: MITSUI TOATSU CHEMICALS
Inventor： ASANUMA TADASHI , OHOKA TATUO , HINO MINORU , UCHIKAWA NOBUTAKA
Abstract: A process for purifying a solvent suitable for use in the polymerization of an olefin in the presence of a Ziegler-Natta catalyst, which comprises feeding the polymerization solvent to a stage lower than a chimney tray of a multi-stage distillation column, said chimney tray being provided at a height between the top and bottom of the column, feeding an organoaluminum compound to a stage higher than the chimney tray, drawing out a condensate from the chimney tray, heating the condensate to produce heated vapor, introducing the heated vapor to the chimney tray or to a stage higher than the chimney tray but lower than the stage to which the organoaluminum compound has been fed, and drawing the solvent in a purified state from the top.
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公开(公告)号：FI81813B
公开(公告)日：1990-08-31
申请号：FI860913
申请日：1986-03-04
Applicant: MITSUI TOATSU CHEMICALS
Inventor： ASANUMA TADASHI , OHOKA TATUO , HINO MINORU , UCHIKAWA NOBUTAKA
Abstract: A process for purifying a solvent suitable for use in the polymerization of an olefin in the presence of a Ziegler-Natta catalyst, which comprises feeding the polymerization solvent to a stage lower than a chimney tray of a multi-stage distillation column, said chimney tray being provided at a height between the top and bottom of the column, feeding an organoaluminum compound to a stage higher than the chimney tray, drawing out a condensate from the chimney tray, heating the condensate to produce heated vapor, introducing the heated vapor to the chimney tray or to a stage higher than the chimney tray but lower than the stage to which the organoaluminum compound has been fed, and drawing the solvent in a purified state from the top.
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公开(公告)号：FR2578438B1
公开(公告)日：1989-03-03
申请号：FR8603012
申请日：1986-03-04
Applicant: MITSUI TOATSU CHEMICALS
Inventor： ASANUMA TADASHI , OHOKA TATUO , HINO MINORU , UCHIKAWA NOBUTAKA
Abstract: A process for purifying a solvent suitable for use in the polymerization of an olefin in the presence of a Ziegler-Natta catalyst, which comprises feeding the polymerization solvent to a stage lower than a chimney tray of a multi-stage distillation column, said chimney tray being provided at a height between the top and bottom of the column, feeding an organoaluminum compound to a stage higher than the chimney tray, drawing out a condensate from the chimney tray, heating the condensate to produce heated vapor, introducing the heated vapor to the chimney tray or to a stage higher than the chimney tray but lower than the stage to which the organoaluminum compound has been fed, and drawing the solvent in a purified state from the top.
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公开(公告)号：FR2578438A1
公开(公告)日：1986-09-12
申请号：FR8603012
申请日：1986-03-04
Applicant: MITSUI TOATSU CHEMICALS
Inventor： ASANUMA TADASHI , OHOKA TATUO , HINO MINORU , UCHIKAWA NOBUTAKA
Abstract: A process for purifying a solvent suitable for use in the polymerization of an olefin in the presence of a Ziegler-Natta catalyst, which comprises feeding the polymerization solvent to a stage lower than a chimney tray of a multi-stage distillation column, said chimney tray being provided at a height between the top and bottom of the column, feeding an organoaluminum compound to a stage higher than the chimney tray, drawing out a condensate from the chimney tray, heating the condensate to produce heated vapor, introducing the heated vapor to the chimney tray or to a stage higher than the chimney tray but lower than the stage to which the organoaluminum compound has been fed, and drawing the solvent in a purified state from the top.
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