-
公开(公告)号：AU2014298549C1
公开(公告)日：2017-03-09
申请号：AU2014298549
申请日：2014-07-29
Applicant: BASF SE
Inventor： BARRATT JOHN SCOTT , JELICIC ALEKSANDRA , HESSE PASCAL , SOETJE OLIVER , HASCHICK ROBERT , FONSECA ZEPEDA GABRIELA EUGENIA , KEELAPANDAL RAMAMOORTHY SHANKARA NARAYANAN , JECK SANDRA , KUHN JELAN
Abstract: A reverse-phase suspension polymerisation process for the manufacture of polymer beads comprising forming aqueous monomer beads of an aqueous solution comprising water-soluble ethylenically unsaturated monomer or monomer blend and polymerising the monomer or monomer blend to form polymer beads while suspended in a non-aqueous liquid, recovering polymer beads, and then cleaning the non-aqueous liquid in which the process comprises providing the non-aqueous liquid in a vessel (1), forming a suspension of monomer beads from the aqueous monomer or monomer blend in the non-aqueous liquid, initiating polymerisation to form polymerising beads, removing a suspension of the polymer beads in non-aqueous liquid from the vessel and recovering, water soluble or water swellable polymer beads from the suspension, in which the non-aqueous liquid contains impurities which comprise particles, and then transferring the non-aqueous liquid from the suspension to a cleaning stage, in which the cleaning stage provides a cleaned non-aqueous liquid suitable for use in a reverse-phase suspension polymerisation process, which cleaning stage comprises removing particles from the non-aqueous liquid in at least one filtration step. The invention also relates to the apparatus suitable for carrying out a reverse-phase suspension polymerisation and polymer beads obtainable by the process or employing the apparatus. The invention further relates to a cleaned non-aqueous liquid obtainable by the process.
-
公开(公告)号：AU2014298549A1
公开(公告)日：2016-02-11
申请号：AU2014298549
申请日：2014-07-29
Applicant: BASF SE
Inventor： BARRATT JOHN SCOTT , JELICIC ALEKSANDRA , HESSE PASCAL , SOETJE OLIVER , HASCHICK ROBERT , FONSECA ZEPEDA GABRIELA EUGENIA , KEELAPANDAL RAMAMOORTHY SHANKARA NARAYANAN , JECK SANDRA , KUHN JELAN
Abstract: A reverse-phase suspension polymerisation process for the manufacture of polymer beads comprising forming aqueous monomer beads of an aqueous solution comprising water-soluble ethylenically unsaturated monomer or monomer blend and polymerising the monomer or monomer blend to form polymer beads while suspended in a non-aqueous liquid, recovering polymer beads, and then cleaning the non-aqueous liquid in which the process comprises providing the non-aqueous liquid in a vessel (1), forming a suspension of monomer beads from the aqueous monomer or monomer blend in the non-aqueous liquid, initiating polymerisation to form polymerising beads, removing a suspension of the polymer beads in non-aqueous liquid from the vessel and recovering, water soluble or water swellable polymer beads from the suspension, in which the non-aqueous liquid contains impurities which comprise particles, and then transferring the non-aqueous liquid from the suspension to a cleaning stage, in which the cleaning stage provides a cleaned non-aqueous liquid suitable for use in a reverse-phase suspension polymerisation process, which cleaning stage comprises removing particles from the non-aqueous liquid in at least one filtration step. The invention also relates to the apparatus suitable for carrying out a reverse-phase suspension polymerisation and polymer beads obtainable by the process or employing the apparatus. The invention further relates to a cleaned non-aqueous liquid obtainable by the process.
-
公开(公告)号：CA2919311A1
公开(公告)日：2015-02-05
申请号：CA2919311
申请日：2014-07-29
Applicant: BASF SE
Inventor： BARRATT JOHN SCOTT , JELICIC ALEKSANDRA , HESSE PASCAL , SOETJE OLIVER , HASCHICK ROBERT , FONSECA ZEPEDA GABRIELA EUGENIA , KEELAPANDAL RAMAMOORTHY SHANKARA NARAYANAN , JECK SANDRA , KUHN JELAN
Abstract: A reverse-phase suspension polymerisation process for the manufacture of polymer beads comprising forming aqueous monomer beads of an aqueous solution comprising water-soluble ethylenically unsaturated monomer or monomer blend and polymerising the monomer or monomer blend to form polymer beads while suspended in a non-aqueous liquid, recovering polymer beads, and then cleaning the non-aqueous liquid in which the process comprises providing the non-aqueous liquid in a vessel (1), forming a suspension of monomer beads from the aqueous monomer or monomer blend in the non-aqueous liquid, initiating polymerisation to form polymerising beads, removing a suspension of the polymer beads in non-aqueous liquid from the vessel and recovering, water soluble or water swellable polymer beads from the suspension, in which the non-aqueous liquid contains impurities which comprise particles, and then transferring the non-aqueous liquid from the suspension to a cleaning stage, in which the cleaning stage provides a cleaned non-aqueous liquid suitable for use in a reverse-phase suspension polymerisation process, which cleaning stage comprises removing particles from the non-aqueous liquid in at least one filtration step. The invention also relates to the apparatus suitable for carrying out a reverse-phase suspension polymerisation and polymer beads obtainable by the process or employing the apparatus. The invention further relates to a cleaned non-aqueous liquid obtainable by the process.
-
-
Search Results
23
records
(took 0.02 seconds)
