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    Process for the purification of vinyl chloride polymers (PVC) from heavy metals
    4.
    发明授权
    Process for the purification of vinyl chloride polymers (PVC) from heavy metals 失效
    从重金属中纯化氯乙烯聚合物（PVC）的方法

    公开(公告)号：US07759458B2

    公开(公告)日：2010-07-20

    申请号：US11719714

    申请日：2005-11-21

    申请人： Eric Fassiau ,  Jean-Christophe Lepers ,  Michaël Lannoy

    发明人： Eric Fassiau ,  Jean-Christophe Lepers ,  Michaël Lannoy

    IPC分类号： C08F6/00 ,  C08J3/00

    CPC分类号： C08J11/08 ,  C08J2327/06 ,  Y02W30/701

    摘要： A process for the purification of a vinyl chloride polymer containing a compound of a heavy metal by: (a) dissolving the PVC in a solvent; (b) treating the solution with at least one additive capable of adsorbing or of forming a complex with the compound of the heavy metal; (c) centrifuging the treated solution to precipitate the adsorbed or complexed compound of the heavy metal; and (d) separating the precipitate from the PVC solution.

    摘要翻译： 一种通过以下方法纯化含有重金属化合物的氯乙烯聚合物的方法：（a）将PVC溶解在溶剂中; （b）用至少一种可与重金属化合物吸附或形成配合物的添加剂处理该溶液; （c）离心处理的溶液以沉淀重金属的吸附或络合的化合物; 和（d）从PVC溶液中分离出沉淀物。

    Process for the purification from heavy metals of vinyl chloride polymers
    5.
    发明授权
    Process for the purification from heavy metals of vinyl chloride polymers 失效
    用于从氯乙烯聚合物的重金属中纯化的方法

    公开(公告)号：US08053550B2

    公开(公告)日：2011-11-08

    申请号：US11719825

    申请日：2005-11-21

    申请人： Eric Fassiau ,  Murielle Manin

    发明人： Eric Fassiau ,  Murielle Manin

    IPC分类号： C08C1/14

    CPC分类号： C08J11/08 ,  C08J2327/04 ,  Y02W30/701

    摘要： Process for the purification of a vinyl chloride polymer (PVC) comprising at least one compound of a heavy metal, according to which: (a) the PVC is dissolved in a water-miscible polar organic solvent; (b) an aqueous solution comprising a reagent, which is either a base capable of reacting with the compound of the heavy metal (R1) or a dispersing agent capable of stabilizing the said compound (R2), is added to the organic solution, the water being introduced in an amount (Q) such that it brings about the formation of a two-phase medium, the continuous phase of which is the organic phase; (c) the two-phase medium is subjected to stirring for a time sufficient for the reagent to be able to interact with (exert its effect on) the compound of the heavy metal; (d) the precipitation of the PVC out of this two-phase medium is brought about.

    摘要翻译： 纯化含有至少一种重金属化合物的氯乙烯聚合物（PVC）的方法，其中：（a）将PVC溶于水混溶的极性有机溶剂中; （b）将含有可与重金属化合物（R1）反应的碱或能稳定所述化合物（R2）的分散剂）的试剂的水溶液加入到有机溶液中， 以Q（Q）的形式引入水，使得其形成两相介质，其连续相为有机相; （c）使两相介质经受搅拌足以使试剂与重金属化合物相互作用（发挥其作用）的时间; （d）出现PVC从这种两相介质中的沉淀。

    Process for the Solvent Treatment of a Plastic
    6.
    发明申请
    Process for the Solvent Treatment of a Plastic 失效
    塑料溶剂处理工艺

    公开(公告)号：US20070255040A1

    公开(公告)日：2007-11-01

    申请号：US11578522

    申请日：2005-04-14

    申请人： Bernard Vandenhende ,  Eric Fassiau

    发明人： Bernard Vandenhende ,  Eric Fassiau

    IPC分类号： C08J11/08

    CPC分类号： C08J11/08 ,  C08J2327/04 ,  Y02W30/701

    摘要： Process for the solvent treatment of a plastic, comprising: (a) dissolving the plastic by contacting it with a solvent and with at least one phase separation agent (PSA) compatible with the solvent and capable of improving the dissolution of the plastic by the solvent; (b) precipitating the plastic by contacting the solution with at least one nonsolvent so as to obtain a solvent/non solvent mixture containing precipitated plastic particles; and (c) substantially eliminating the solvent from the mixture and recovering solid plastic particles, wherein after step (a) but before step (c), a stripping step (d) takes place during which at least a substantial portion of the PSA is removed from the solution or from the mixture, said stripping step (d) using a stripping composition which includes solvent in an amount sufficient to replace the evaporated one and to keep the polymer concentration in the solution or in the mixture practically unaffected.

    摘要翻译： 用于溶剂处理塑料的方法，包括：（a）通过使其与溶剂接触并使其与至少一种与溶剂相容的相分离剂（PSA）溶解并且能够通过溶剂改善塑料的溶解来溶解塑料 ; （b）通过使溶液与至少一种非溶剂接触使塑料沉淀，以获得含有沉淀的塑料颗粒的溶剂/非溶剂混合物; 并且（c）基本上从混合物中除去溶剂并回收固体塑料颗粒，其中在步骤（a）之后但在步骤（c）之前，进行汽提步骤（d），在该步骤期间至少大部分PSA被除去 所述汽提步骤（d）使用汽提组合物，所述汽提组合物包括足以代替蒸发组分的溶剂，并将聚合物浓度保持在溶液中或在混合物中几乎不受影响。

    Method for recovering a polymer in solution
    8.
    发明申请
    Method for recovering a polymer in solution 失效
    溶液中回收聚合物的方法

    公开(公告)号：US20060173085A1

    公开(公告)日：2006-08-03

    申请号：US10564589

    申请日：2004-07-14

    申请人： Eric Fassiau ,  Denis Geets

    发明人： Eric Fassiau ,  Denis Geets

    IPC分类号： C08J11/04

    CPC分类号： C08J11/08 ,  C08J3/16 ,  C08J2327/06 ,  Y02W30/701

    摘要： Process for recovering at least one polymer in solution in a solvent by precipitation by means of a non-solvent introduced gradually into the solution to form the precipitation medium, whereby: in the course of the introduction of the non-solvent into the precipitation medium, there is first a phase separation (into a continuous phase rich in solvent, in which the polymer is dissolved, and into a disperse phase, consisting of droplets rich in non-solvent) and then there is a phase inversion (the continuous phase then becoming the phase rich in non-solvent, and the disperse phase becoming the phase rich in solvent containing the dissolved polymer) the non-solvent is initially introduced into the precipitation medium in liquid form only and in a quantity (Q′) which is not zero but is less than the quantity (Q) required to bring about the phase inversion, and is subsequently introduced into the precipitation medium at least partly in vapour form.

    摘要翻译： 用溶剂中的至少一种聚合物在溶剂中回收利用逐渐引入溶液中的非溶剂沉淀形成沉淀介质的方法，其中：在将非溶剂引入沉淀介质的过程中， 首先进行相分离（富含溶剂的连续相中，其中聚合物溶解，并且进入分散相，由富含非溶剂的液滴组成），然后存在相转化（连续相变为 相中富含非溶剂，分散相成为含有溶解的聚合物的富含相的相），非溶剂最初仅以液体形式引入沉淀介质中，并且以不为零的量（Q'）引入 但是小于进行相转化所需的量（Q），并且随后至少部分地以蒸气形式引入沉淀介质中。

    Method for recovering a polymer from a liquid medium
    9.
    发明授权
    Method for recovering a polymer from a liquid medium 失效
    从液体介质中回收聚合物的方法

    公开(公告)号：US07893195B2

    公开(公告)日：2011-02-22

    申请号：US12063710

    申请日：2006-08-17

    申请人： Eric Fassiau ,  Bernard Vandenhende ,  Jean-Raphael Caille ,  Jean-Christophe Lepers

    发明人： Eric Fassiau ,  Bernard Vandenhende ,  Jean-Raphael Caille ,  Jean-Christophe Lepers

    IPC分类号： C08F6/00

    CPC分类号： C08J11/08 ,  C08J3/14 ,  C08J3/16 ,  Y02W30/701

    摘要： Method for recovering a polymer from a liquid medium (1) substantially containing the polymer and a solvent for the latter, wherein: (a) this liquid medium (1) is injected into a reactor (2) containing a stirred substantially monophase liquid mixture comprising a major fraction by weight of a non-solvent and a minor fraction by weight of a solvent, the mixture having a composition and temperature such that the polymer precipitates therefrom progressively; (b) the polymer is recovered in the form of particles in suspension (5) in a liquid rich in non-solvent; (c) the polymer particles (9) are separated from the liquid.

    摘要翻译： 从基本上含有聚合物的液体介质（1）和后者的溶剂中回收聚合物的方法，其中：（a）将该液体介质（1）注入反应器（2）中，该反应器包含搅拌的基本上单相液体混合物， 大部分重量的非溶剂和少量的溶剂，该混合物具有使聚合物逐渐沉淀的组成和温度; （b）聚合物以悬浮液（5）中的颗粒形式在富含非溶剂的液体中回收; （c）聚合物颗粒（9）与液体分离。

    Method for recovering a polymer in solution
    10.
    发明授权
    Method for recovering a polymer in solution 失效
    溶液中回收聚合物的方法

    公开(公告)号：US07790777B2

    公开(公告)日：2010-09-07

    申请号：US10564589

    申请日：2004-07-14

    申请人： Eric Fassiau ,  Denis Geets

    发明人： Eric Fassiau ,  Denis Geets

    IPC分类号： C08J11/04

    CPC分类号： C08J11/08 ,  C08J3/16 ,  C08J2327/06 ,  Y02W30/701

    摘要： Process for recovering at least one polymer in solution in a solvent by precipitation by means of a non-solvent fluid, whereby the precipitation takes place in a precipitation medium comprising two dispersants of which one [dispersant(I)] has a greater affinity for the non-solvent and the other [dispersant (II)] has a greater affinity for the solvent.

    摘要翻译： 通过非溶剂流体沉淀在溶剂中回收溶液中的至少一种聚合物的方法，由此沉淀在包含两种分散剂的沉淀介质中进行，其中一种[分散剂（I）]对于 非溶剂和其它[分散剂（II）]对溶剂具有更大的亲和力。