中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

144 records (took 0.019 seconds)

    PROCESS FOR THE POLYMERIZATION OF OLEFINS
    84.
    发明申请
    PROCESS FOR THE POLYMERIZATION OF OLEFINS 审中-公开
    烯烃聚合方法

    公开(公告)号：WO2017025327A1

    公开(公告)日：2017-02-16

    申请号：PCT/EP2016/067874

    申请日：2016-07-27

    Applicant: SABIC GLOBAL TECHNOLOGIES B.V.

    Inventor： BANAT, Yahya ,  ALSHAIBAN, Ahmad, Abdullah ,  AL-HUMAIDAN, Osamah

    IPC: C08F2/01 ,  B01J8/08 ,  C08F110/06 ,  C08F210/06 ,  C08F2/34 ,  C08F10/06

    CPC classification number: C08F2/01 ,  B01J8/08 ,  C08F2/34 ,  C08F10/06 ,  C08F110/06 ,  C08F210/06 ,  C08F2500/04 ,  C08F2500/17 ,  C08F4/6465 ,  C08F4/6546

    Abstract: The present invention relates to a process for the continuous preparation of polypropylene in a reactor from propylene and optionally ethylene and/or at least one other oolefin monomer, wherein the reactor comprises a fluidized bed, an expanded section located at or near the top of the reactor, a distribution plate located at the lower part of the reactor and an inlet for a recycle stream located under the distribution plate, wherein the process comprises - feeding a polymerization catalyst to the fluidized bed in the area above the distribution plate - feeding the propylene and the optional at least one other oolefin monomer to the reactor - withdrawing the polypropylene from the reactor - circulating fluids from the top of the reactor to the bottom of the reactor, wherein the circulating fluids are compressed using a compressor and cooled using a heat exchanger, resulting in a cooled recycle stream comprising liquid, and wherein the cooled recycle stream is introduced into the reactor using the inlet for the recycle stream wherein an alkane chosen from the group of iso-butane, n-butane, cyclopropane and mixtures thereof is added to the reactor and wherein the molar composition of the components in the recycle stream is chosen such that the dew temperature of the recycle stream at the reactor pressure is at least 0.10°C below the temperature of the reactor

    Abstract translation: 本发明涉及在丙烯和任选的乙烯和/或至少一种其它烯烃单体的反应器中连续制备聚丙烯的方法，其中反应器包括流化床，位于或接近顶部的膨胀部分 反应器，位于反应器下部的分配板和位于分配板下方的再循环料流的入口，其中该方法包括 - 向分配板上方的区域中的流化床供给聚合催化剂 - 供给丙烯 和任选的至少一种其它烯烃单体加入到反应器中 - 从反应器中抽出聚丙烯 - 将反应器的顶部循环流体循环到反应器的底部，其中循环流体使用压缩机压缩并使用热交换器 导致包含液体的冷却的循环流，并且其中将冷却的再循环流引入反应物中 r使用入口进行循环流，其中将选自异丁烷，正丁烷，环丙烷及其混合物的烷烃加入到反应器中，并且其中循环物流中组分的摩尔组成被选择为使得 在反应器压力下循环物流的露点温度比反应器的温度低至少0.10℃

    PROCESS FOR PRODUCING POLYPROPYLENE
    88.
    发明申请
    PROCESS FOR PRODUCING POLYPROPYLENE 审中-公开
    生产聚丙烯的方法

    公开(公告)号：WO2016102430A1

    公开(公告)日：2016-06-30

    申请号：PCT/EP2015/080729

    申请日：2015-12-21

    Applicant: BOREALIS AG

    Inventor： LESKINEN, Pauli ,  LILJA, Johanna ,  WANG, Jingbo ,  GAHLEITNER, Markus ,  HORILL, Thomas ,  DENIFL, Peter ,  TRANNINGER, Cornelia

    IPC: C08F110/06 ,  C08F4/651

    CPC classification number: C08F110/06 ,  C08F2/001 ,  C08F4/6465 ,  C08F4/6492 ,  C08F4/6546 ,  C08F2500/04 ,  C08F2500/12 ,  C08F2500/15 ,  C08F4/651 ,  C08F2500/17

    Abstract: Propylene is polymerised in the presence of a polymerisation catalyst comprising a solid catalyst component, an organoaluminium compound and an external electron donor, the process comprising the steps of (i) contacting propylene and hydrogen with the polymerisation catalyst in polymerisation conditions in a polymerisation reactor to produce a polymer of propylene; (ii) recovering the polymer of propylene from the polymerisation reactor; wherein the polymer of propylene has MFR of from more than 100 to 10000g/10 min. The solid catalyst component comprises titanium, magnesium, halogen and an internal electron donor, characterised in that the internal electron donor is a compound according to formula (I) with R 1 and R 2 being the same or different and being a linear or branched C 1 -C 12 -alkyl group, and with R being H or a linear, branched or cyclic C 1 to C 12 -alkyl, whereby it is preferred that R is not H. The external electron donor is a silane compound having the formula Si(OR 11 ) n R 10 4-n , wherein each R 10 is independently a linear or branched C 1 -C 4 alkyl, preferably methyl or ethyl; and each R 10 is independently a linear or branched alkyl group having from 1 to 24 and optionally containing an atom of group 15 of periodic table of elements or comprises a cyclic group having from 6 to 12 carbon atoms.

    Abstract translation: 丙烯在包含固体催化剂组分，有机铝化合物和外部电子给体的聚合催化剂存在下聚合，该方法包括以下步骤：（i）在聚合反应器中的聚合条件下使丙烯和氢与聚合催化剂接触， 生产丙烯聚合物; （ii）从聚合反应器回收丙烯聚合物; 其中丙烯的聚合物的MFR大于100至10000g / 10min。 固体催化剂组分包括钛，镁，卤素和内电子给体，其特征在于内电子给体是根据式（I）的化合物，其中R 1和R 2相同或不同，并且是直链或支链C 1 -C 12 - 烷基，R为H或直链，支链或环状的C 1〜C 12 - 烷基，优选R不为H.外电子给体为具有式Si（OR 11）n R 10 4- n，其中每个R 10独立地为直链或支链C 1 -C 4烷基，优选甲基或乙基; 并且每个R 10独立地为具有1至24个并且任选地含有元素周期表的第15族的原子的直链或支链烷基或包含具有6至12个碳原子的环状基团。

Patent Agency Ranking