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公开(公告)号：CA2919319C
公开(公告)日：2019-02-26
申请号：CA2919319
申请日：2014-07-29
Applicant: BASF SE
Inventor： HESSE PASCAL , JELICIC ALEKSANDRA , FONSECA ZEPEDA GABRIELA EUGENIA , HASCHICK ROBERT , KEELAPANDAL RAMAMOORTHY SHANKARA NARAYANAN , NAYLOR GARETH IAN , BARRATT JOHN SCOTT , SOETJE OLIVER , LIEVRE MARCEL , RAINAU FLORIAN , LEBKUCHER MARK
Abstract: There is disclosed 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, and recovering polymer beads. During the process, (i) the aqueous monomer or monomer blend and/or the orifices is/are vibrated such that the frequency multiplied by the weight average droplet diameter is between 150 and 800 mm/s, and (ii) the non-aqueous liquid flows in a downwards direction and co-current with the direction of flow of the monomer beads. An apparatus for carrying out the process is also disclosed.
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公开(公告)号：AU2014298550A1
公开(公告)日：2016-02-11
申请号：AU2014298550
申请日：2014-07-29
Applicant: BASF SE
Inventor： HESSE PASCAL , JELICIC ALEKSANDRA , FONSECA ZEPEDA GABRIELA EUGENIA , HASCHICK ROBERT , KEELAPANDAL RAMAMOORTHY SHANKARA NARAYANAN , NAYLOR GARETH IAN , BARRATT JOHN SCOTT , SOETJE OLIVER , LIEVRE MARCEL , RAINAU FLORIAN , LEBKUCHER MARK
Abstract: A reverse-phase suspension polymerisation process for the manufacture of polymer beads comprising forming aqueous monomer beads comprising an aqueous solution of 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, and recovering polymer beads, in which the process comprises providing in a vessel (1) a volume (2) of non-aqueous liquid wherein the volume of non-aqueous liquid extends between at least one polymer bead discharge point (3) and at least one monomer feed point (4), feeding the aqueous monomer or monomer blend through orifices (5) into, or onto, the non-aqueous liquid to form aqueous monomer beads, allowing the aqueous monomer beads to flow towards the polymer bead discharge point initiating polymerisation of the aqueous monomer beads to form polymerising beads, wherein the polymerising beads form polymer beads when they reach the polymer bead discharge point, removing a suspension of the polymer beads in non-aqueous liquid from the vessel at the polymer bead discharge point and recovering, water soluble or water swellable polymer beads from the suspension, in which the aqueous monomer or monomer blend and/or the orifices is/are vibrated such that the frequency multiplied by the weight average droplet diameter is between 150 and 800 mm/s. 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. Furthermore, the invention also relates to polymer beads having a weight mean particle size in the range of 0.05 to 5 mm which are held in a container in an amount of at least 300 kg having a standard deviation of particle size less than 20%. In addition, the invention also provides polymer beads having a weight mean particle size in the range 0.05 to 5 mm having a standard deviation of particle size less than 20% and having an amount of residual acrylamide of less than 500 ppm.
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公开(公告)号：MX2015003925A
公开(公告)日：2015-11-25
申请号：MX2015003925
申请日：2013-09-23
Applicant: BASF SE
Inventor： RAMAMOORTHY SHANKARA NARAYANAN KEELAPANDAL , BARRATT JOHN SCOTT , SOETJE OLIVER , ZEPEDA GABRIELA EUGENIA FONSECA
Abstract: Un proceso para la preparación de un producto polimérico que comprende las etapas de i) alimentar una mezcla acuosa que comprende un monómero monoetilénicamente insaturado o una mezcla de monómeros monoetilénicamente insaturados en un primer dispositivo de reactor (2) a través de al menos una entrada; ii) polimerizar parcialmente el monómero o monómeros y transferir el monómero o mezcla de monómeros polimerizantes desde la entrada hasta una salida (3) del primer dispositivo de reactor (2) para proporcionar un producto parcialmente polimerizado; iii) hacer fluir el producto parcialmente polimerizado fuera de la salida (3), en la cual no más de 60% del monómero o mezcla de monómeros ha sido polimerizado en el producto parcialmente polimerizado conforme sale de la salida (3) deI primer dispositivo de reactor (2), y transferirlo a un dispositivo de reactor adicional (5), ese dispositivo de reactor adicional (5) tiene una entrada y una salida (6); iv) continuar la polimerización en el dispositivo de reactor adicional (5) y remover el producto de polímero de la salida (6) del dispositivo de reactor adicional (5), caracterizado porque el primer dispositivo de reactor (2) comprende una bomba de desplazamiento positivo.
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公开(公告)号：CA2919320A1
公开(公告)日：2015-02-05
申请号：CA2919320
申请日：2014-07-29
Applicant: BASF SE
Inventor： HASCHICK ROBERT , JELICIC ALEKSANDRA , BARRATT JOHN SCOTT , HESSE PASCAL , SOETJE OLIVER , FONSECA ZEPEDA GABRIELA EUGENIA , KEELAPANDAL RAMAMOORTHY SHANKARA NARAYANAN , LANGLOTZ BJORN
Abstract: A reverse-phase suspension polymerisation process for the manufacture of polymer beads comprising forming aqueous monomer beads comprising an aqueous solution of 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, and recovering polymer beads, in which the process comprises, providing in a vessel (1) a volume (2) of non-aqueous liquid wherein the volume of non-aqueous liquid extends between at least one polymer bead discharge point (3) and at least one monomer feed point (4), feeding the aqueous monomer or monomer blend through orifices (5) into, or onto, the non-aqueous liquid to form aqueous monomer beads, allowing the aqueous monomer beads to flow towards the polymer bead discharge point subjecting the aqueous monomer beads to polymerisation conditions to initiate polymerisation to form polymerising beads, wherein the polymerising beads have formed polymer beads when they reach the polymer bead discharge point, removing a suspension of the polymer beads in non-aqueous liquid from the vessel at the polymer bead discharge point and recovering water soluble or water swellable polymer beads from the suspension. 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.
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公开(公告)号：CA2883107A1
公开(公告)日：2014-04-03
申请号：CA2883107
申请日：2013-09-23
Applicant: BASF SE
Inventor： KEELAPANDAL RAMAMOORTHY SHANKARA NARAYANAN , SOETJE OLIVER , BARRATT JOHN SCOTT , FONSECA ZEPEDA GABRIELA EUGENIA
Abstract: A process for preparation of a polymer product comprising the steps of i)feeding an aqueous mixture comprising a monoethylenically unsaturated monomer or a mixture of monoethylenically unsaturated monomers into a first reactor device (2) through at least one inlet; ii)partially polymerising the monomer or monomers and transferring the polymerising monomer or mixture of monomers from the inlet to an outlet(3)of the first reactor device(2)to provide a partially polymerised product; iii)flowing the partially polymerised product out of the outlet(3), in which no more than 60% of the monomer or mixture of monomers has been polymerised in the partially polymerised product as it exits the outlet (3) of first reactor device(2), and transferring it to a further reactor device(5), in which the further reactor device (5) has an inlet and an outlet(6); iv)continuing the polymerisation in the further reactor device (5) and removing the polymer product from the outlet (6) of the further reactor device(5), characterised in that the first reactor device (2) comprises a positive displacement pump.
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Patent Agency Ranking
公开(公告)号：AU2017258560B2
公开(公告)日：2022-04-14
申请号：AU2017258560
申请日：2017-04-20
Applicant: BASF SE
Inventor： JECK SANDRA , SOETJE OLIVER , BRINGMANN TOBIAS , FONSECA ZEPEDA GABRIELA EUGENIA , MECKELNBURG DIRK , LOESCH DENNIS , LANGLOTZ BJOERN , BARRATT JOHN , EL-TOUFAILI FAISSAL-ALI , SCHUBE BERND , OSTERMAYR MARKUS , SPRAFKE HAZEL
IPC: B01F23/50
Abstract: Process and apparatus for producing an aqueous polymer solution comprising the steps of • (a) providing a hydrated polymer that has been prepared by aqueous solution polymerisation of ethylenically unsaturated monomers, which hydrated polymer comprises at least 10% by weight active polymer; • (b) cutting the hydrated polymer by subjecting the hydrated polymerto at least one cutting stage comprising at least one stream of aqueous liquid at a pressure of at least 150 bar to reduce the size of the hydrated polymer, • (c) dissolving the hydrated polymer in an aqueous liquid so as to obtain an aqueous polymer solution.
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公开(公告)号：ZA201807808B
公开(公告)日：2020-08-26
申请号：ZA201807808
申请日：2018-11-20
Applicant: BASF SE
Inventor： JECK SANDRA , SOETJE OLIVER , BRINGMANN TOBIAS , FONSECA ZEPEDA GABRIELA EUGENIA , MECKELNBURG DIRK , LOESCH DENNIS , LANGLOTZ BJÖRN , BARRATT JOHN , EL-TOUFAILI FAISSAL-ALI , SPRAFKE HAZEL , SCHUBE BERND , OSTERMAYR MARKUS
Abstract: A process for producing an aqueous polymer solution, including: (a) providing a hydrated polymer that has been prepared by aqueous solution polymerisation of ethylenically unsaturated monomers, which hydrated polymer contains at least 10% by weight active polymer; (b) cutting the hydrated polymer by subjecting the hydrated polymer to at least one cutting stage containing at least one stream of aqueous liquid at a pressure of at least 150 bar to reduce the size of the hydrated polymer; and (c) dissolving the hydrated polymer in an aqueous liquid so as to obtain an aqueous polymer solution. An apparatus for producing an aqueous polymer solution.
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公开(公告)号：CA2919320C
公开(公告)日：2019-02-26
申请号：CA2919320
申请日：2014-07-29
Applicant: BASF SE
Inventor： HASCHICK ROBERT , JELICIC ALEKSANDRA , BARRATT JOHN SCOTT , HESSE PASCAL , SOETJE OLIVER , FONSECA ZEPEDA GABRIELA EUGENIA , KEELAPANDAL RAMAMOORTHY SHANKARA NARAYANAN , LANGLOTZ BJORN
Abstract: There is disclosed a reverse-phase suspension polymerisation process for the manufacture of polymer beads comprising forming aqueous monomer beads comprising an aqueous solution of 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, and recovering polymer beads. In another of its aspects, the invention relates to the apparatus suitable for carrying out a reverse-phase suspension polymerisation and polymer beads obtained by the process or employing the apparatus.
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公开(公告)号：CA3022178A1
公开(公告)日：2017-11-02
申请号：CA3022178
申请日：2017-04-25
Applicant: BASF SE
Inventor： SPRAFKE HAZEL , EL-TOUFAILI FAISSAL-ALI , LANGLOTZ BJOERN , BARRATT JOHN , BRINGMANN TOBIAS , FONSECA ZEPEDA GABRIELA EUGENIA , JECK SANDRA , LOESCH DENNIS , MECKELNBURG DIRK , OSTERMAYR MARKUS , SCHUBE BERND , SOETJE OLIVER
IPC: C08F20/56
Abstract: A method for preparing an aqueous polyacrylamide solution is disclosed. The method comprises: - hydrating acrylonitrile in water in presence of a biocatalyst capable of converting acrylonitrile to acrylamide so as to obtain an acrylamide solution, - directly polymerizing the acrylamide solution so as to obtain a polyacrylamide gel, and - directly dissolving the polyacrylamide gel by addition of water so as to obtain an aqueous polyacrylamide solution, wherein the polyacrylamide gel is dissolved by means of water jet cutting.
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公开(公告)号：ZA201601174B
公开(公告)日：2017-06-28
申请号：ZA201601174
申请日：2016-02-22
Applicant: BASF SE
Inventor： LEBKÜCHER MARK , RAINAU FLORIAN , LIEVRE MARCEL , SOETJE OLIVER , HASCHICK ROBERT , HESSE PASCAL , BARRATT JOHN SCOTT , NAYLOR GARETH IAN , JELICIC ALEKSANDRA , KEELAPANDAL RAMAMOORTHY SHANKARA NARAYANAN , FONSECA ZEPEDA GABRIELA EUGENIA
Abstract: A reverse-phase suspension polymerization process for the manufacture of polymer beads comprising forming aqueous monomer beads comprising an aqueous solution of water-soluble ethylenically unsaturated monomer or monomer blend and polymerizing the monomer or monomer blend, to form polymer beads while suspended in a non-aqueous liquid, and recovering polymer beads, in which the process comprises providing in a vessel (1) a volume (2) of non-aqueous liquid wherein the volume of non-aqueous liquid extends between at least one polymer bead discharge point (3) and at least one monomer feed point (4), feeding the aqueous monomer or monomer blend through orifices (5) into, or onto, the non-aqueous liquid to form aqueous monomer beads, allowing the aqueous monomer beads to flow towards the polymer bead discharge point initiating polymerization of the aqueous monomer beads to form polymerizing beads, wherein the polymerizing beads form polymer beads when they reach the polymer bead discharge point, removing a suspension of the polymer beads in non-aqueous liquid from the vessel at the polymer bead discharge point and recovering, water soluble or water swellable polymer beads from the suspension, in which the aqueous monomer or monomer blend and/or the orifices is/are vibrated such that the frequency multiplied by the weight average droplet diameter is between 150 and 800 mm/s. The invention also relates to the apparatus suitable for carrying out a reverse-phase suspension polymerization and polymer beads obtainable by the process or employing the apparatus. Furthermore, the invention also relates to polymer beads having a weight mean particle size in the range of 0.05 to 5 mm which are held in a container in an amount of at least 300 kg having a standard deviation of particle size less than 20%. In addition, the invention also provides polymer beads having a weight mean particle size in the range 0.05 to 5 mm having a standard deviation of particle size less than 20% and having an amount of residual acrylamide of less than 500 ppm.
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