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17 条记录 (耗时 0.015 秒)

    PROCESS FOR RECOVERING A TRANSITION METAL COMPOUND
    1.
    发明公开
    PROCESS FOR RECOVERING A TRANSITION METAL COMPOUND 有权
    工艺回收用过渡金属化合物

    公开(公告)号：EP2499169A1

    公开(公告)日：2012-09-19

    申请号：EP10778638.6

    申请日：2010-11-11

    申请人： Borealis AG

    发明人： ELO, Pertti ,  VIJAY, Sameer ,  HAKALA, Kimmo ,  RAUTIO, Soile ,  LEHTINIEMI, Ismo

    IPC分类号： C08F4/00 ,  C08F110/06 ,  C08F4/6592 ,  C08F4/649 ,  C08F6/02

    CPC分类号： C08F110/06 ,  B01J31/143 ,  B01J31/1608 ,  B01J31/2295 ,  B01J37/0072 ,  B01J37/009 ,  B01J2531/94 ,  C08F4/65912 ,  C08F4/65927 ,  C08F6/02 ,  C08L23/12 ,  C08F4/00 ,  C08F4/6492 ,  C08F2500/12

    摘要： The present invention also aims to provide a process for producing a solid polymerization catalyst component comprising the steps of (A) producing a solution comprising a transition metal compound and a solvent; (B) solidifying a component comprising said transition metal compound to produce said solid polymerization catalyst component in a solidification stage; (C) recovering from said solidification stage a liquid stream containing a minor amount of said transition metal compound dissolved therein and a solid catalyst stream; and (D) recovering said transition metal component from said liquid stream, characterized in that said step (D) comprises concentrating said solution to produce a first product stream comprising the solvent and being essentially free of said transition metal compound and a second product stream comprising the solvent and said transition metal compound, characterized in that the concentration is conducted within a temperature range of from 0 to 100 °C. The process offers an economical method of producing the solid catalyst component. The catalyst is active in polymerization and can be used in industrial processes.

    PROCESS FOR THE POLYMERIZATION OF OLEFINS IN SOLUTION COMPRISING DEACTIVATING THE POLYMERIZATION CATALYST BY HEAT
    4.
    发明公开
    PROCESS FOR THE POLYMERIZATION OF OLEFINS IN SOLUTION COMPRISING DEACTIVATING THE POLYMERIZATION CATALYST BY HEAT 审中-公开

    公开(公告)号：EP3845569A1

    公开(公告)日：2021-07-07

    申请号：EP20150102.0

    申请日：2020-01-02

    申请人： Borealis AG

    发明人： AL-HAJ ALI, Mohammad ,  BERGSTRA, Michiel ,  ERIKSSON, Erik ,  VIJAY, Sameer ,  WURNITSCH, Christof ,  ZITTING, Samuli ,  SLEIJSTER, Henry ,  AJELLAL, Noureddine

    IPC分类号： C08F6/02 ,  C08F210/16

    摘要： The present invention relates to a polymerization process, comprising:
    a) supplying a feed containing ethylene and at least one alpha-olefin having 3 to 12 carbon atoms in a hydrocarbon solvent to a polymerization reactor,
    b) contacting the feed of step a) in the reactor with a catalyst to form a reaction mixture containing an ethylene-alpha-olefin co-polymer,
    c) withdrawing the reaction mixture from the polymerization reactor as a reactor outlet stream which comprises the ethylene-alpha-olefin co-polymer, unreacted monomer and comonomer, catalyst, and hydrocarbon solvent,
    d) heating the reactor outlet stream to a temperature which is at least 5 °C higher than the temperature of the reaction mixture at the outlet of the reactor for a time period of between 1 and 250 seconds in order to de-activate the polymerization catalyst, and
    e) separating hydrocarbon solvent, monomer and comonomer from the reactor outlet stream and recycling it back to the polymerization reactor without further purification steps.

    A PROCESS FOR RECOVERING HYDROCARBONS IN A SOLUTION POLYMERISATION PROCESS
    5.
    发明公开
    A PROCESS FOR RECOVERING HYDROCARBONS IN A SOLUTION POLYMERISATION PROCESS 审中-公开

    公开(公告)号：EP3394114A1

    公开(公告)日：2018-10-31

    申请号：EP16825742.6

    申请日：2016-12-21

    申请人： Borealis AG

    发明人： AL-HAJ ALI, Mohammad ,  ERIKSSON, Erik ,  MATHIVANAN, Guhan ,  SLEIJSTER, Henry ,  VIJAY, Sameer ,  WURNITSCH, Christof ,  ZITTING, Samuli

    IPC分类号： C08F2/06 ,  C08F6/00 ,  C08J11/02 ,  C08F6/12

    CPC分类号： C08F6/12 ,  B01D3/143 ,  B01D3/42 ,  C08F2/06 ,  C08F6/003 ,  C08F6/04 ,  C08F10/02 ,  C08F10/06 ,  C08F36/02 ,  C08L23/00

    摘要： The present invention relates to a process for producing a polymer composition comprising the steps of: (A) polymerising, in a first polymerisation reactor in a first solvent,—a first olefin monomer having two or more carbon atoms, —in the presence of a first polymerisation catalyst for producing a first solution comprising a first polymer of the first olefin monomer and the first solvent; (B) withdrawing a first stream of the first solution from the first polymerisation reactor; (C) passing the first stream of the first solution into a first separator wherein a first liquid phase comprising the polymer and a first vapour phase coexist; (D) withdrawing a first vapour stream and a first concentrated solution stream comprising the polymer from the first separator; (E) passing at least a part of the first vapour stream to a first fractionator; (F) withdrawing a first overhead stream and a first bottom stream from the first fractionator; (G) recovering at least a part of the first overhead stream as a first recycle stream and passing it to the first polymerisation reactor; (H) passing the first concentrated solution stream from the first separator (4) to a second separator (8) wherein a second liquid phase comprising the polymer and a second vapour phase coexist; (I) withdrawing a second vapour stream and a second concentrated solution stream comprising the polymer from the second separator; (J) passing at least a part of the second pour stream to a second fractionator; (K) withdrawing a second overhead stream and a second bottom stream from the second fractionator; (L) recovering at least a part of the second overhead stream as a second recycle stream and passing it to the first polymerisation reactor; (M) passing the second concentrated solution stream from the second separator to a third separator wherein a third liquid phase comprising the polymer and a third vapour phase coexist; characterised in that the mass flow rate of the first recycle stream is at least 80% of the mass flow rate of the first vapour stream and the mass flow rate of the second recycle stream is at least 70% of the mass flow rate of the second vapour stream.

    PROCESS FOR PRODUCING PELLETS OF SOFT COPOLYMERS
    6.
    发明公开
    PROCESS FOR PRODUCING PELLETS OF SOFT COPOLYMERS 审中-公开
    生产软性共聚物颗粒的方法

    公开(公告)号：EP3221387A1

    公开(公告)日：2017-09-27

    申请号：EP15798040.0

    申请日：2015-11-19

    申请人： Borealis AG

    发明人： TRAN, Anh Tuan ,  VIJAY, Sameer

    IPC分类号： C08J3/12

    CPC分类号： C08J3/124 ,  B29B9/065 ,  B29K2023/08 ,  B29K2105/0094 ,  B29K2509/08 ,  B29K2995/0063 ,  C08J2323/00 ,  C08J2323/08

    摘要： The present invention deals with a process for producing pellets from olefin copolymers. The process comprises: (i) melting the olefin copolymer in an extruder; (ii) extruding the molten olefin copolymer through a die plate into a pellet water bath in a pelletiser thereby producing strands of the olefin copolymer; (iii) cutting the strands of the olefin copolymer in the pelletiser into pellets; and (iv) drying the pellets. The pellet water in the pelletiser contains from 0.1 to 5 % by weight of a colloidal silica based on the weight of the water

    摘要翻译： 本发明涉及由烯烃共聚物生产粒料的方法。 该方法包括：（i）在挤出机中熔化烯烃共聚物; （ii）通过模板将熔融烯烃共聚物挤出成粒机中的粒料水浴，从而生产烯烃共聚物的股线; （iii）将造粒机中的烯烃共聚物的股线切割成粒料; 和（iv）干燥颗粒。 基于水的重量，造粒机中的颗粒水含有0.1-5重量％的胶体二氧化硅

    PROCESS FOR PRODUCING A POLYMERIZATION CATALYST
    10.
    发明公开
    PROCESS FOR PRODUCING A POLYMERIZATION CATALYST 有权
    一种用于过渡金属化合物的回收方法

    公开(公告)号：EP2499168A1

    公开(公告)日：2012-09-19

    申请号：EP10775829.4

    申请日：2010-11-11

    申请人： Borealis AG

    发明人： VIJAY, Sameer ,  RÄSÄNEN, Jukka ,  LYLYKANGAS, Mikko

    IPC分类号： C08F4/00 ,  C08F110/06 ,  C08F4/6592 ,  C08F6/00 ,  B01J37/00

    CPC分类号： C08F10/06 ,  B01J31/143 ,  B01J31/1608 ,  B01J31/2295 ,  B01J37/0072 ,  B01J37/009 ,  B01J2531/94 ,  C07C17/38 ,  C07C17/383 ,  C08F4/65912 ,  C08F6/02 ,  C08F110/06 ,  C08L23/10 ,  C08F4/00 ,  C08F4/65927 ,  C08F2500/12

    摘要： The present invention aims to provide a process for producing a solid polymerization catalyst component comprising the steps of (A) withdrawing a mixed stream comprising the solid polymerization catalyst component and a mixture of a first liquid comprising a hydrocarbon or halogenated hydrocarbon solvent and a second liquid comprising a liquid capable of forming an emulsion with said first liquid from a catalyst preparation stage; (B) separating said mixed stream into a liquid stream comprising a majority of said mixture of said first liquid and said second liquid and a product stream comprising a majority of said solid polymerization catalyst component; (C) dividing said liquid stream into a first liquid stream comprising a majority of said first liquid and a second liquid stream comprising a majority of said second liquid; (D) forming a purified second liquid stream and a disposable stream; and (E) returning at least a part of said purified second liquid stream into said catalyst preparation stage. The process offers an economical and environmentally attractive method of producing the solid catalyst component. The catalyst is active in polymerization and can be used in industrial processes.