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    PROCESS FOR THE PRODUCTION OF HYDROGEN PEROXIDE
    3.
    发明公开
    PROCESS FOR THE PRODUCTION OF HYDROGEN PEROXIDE 有权
    生产过氧化氢的方法

    公开(公告)号：EP1307399A1

    公开(公告)日：2003-05-07

    申请号：EP01969572.5

    申请日：2001-08-03

    申请人： Polimeri Europa S.p.A. ,  ENI S.p.A.

    发明人： PAPARATTO, Giuseppe ,  RIVETTI, Franco ,  ANDRIGO, Pietro ,  DE ALBERTI, Giordano ,  ROMANO, Ugo

    IPC分类号： C01B15/029 ,  C01B15/013

    CPC分类号： C01B15/013 ,  C01B15/029

    摘要： Process for the production of concentrated aqueous solutions of hydrogen peroxide, comprising the following steps: (a) feeding to a reactor containing a catalyst based on palladium and platinum, heterogeneous and maintained in dispersion in a liquid reaction medium: (i) a liquid stream consisting of an alcohol or a mixture of C1-C3 alcohols or a mixture of said alcohols with water containing at least 50% by weight of alcohol, also containing an acid promoter and a halogenated promoter, the alcohol and optionally all or part of the water contained in the stream being recycled from the subsequent phase d); (ii) a gaseous stream containing hydrogen, oxygen and an inert gas, characterized in that the concentration of the hydrogen is less than 4.5 % by volume and the concentration of the oxygen is less than 21 % by volume, the complement to 100 being an inert gas; (b) removing from the reactor: (iii) a liquid stream consisting of stream (i) and also containing the hydrogen peroxide and water produced by the reaction, characterized in that the concentration of hydrogen peroxide ranges from 2 % to 10 % by weight; and (iv) a gaseous stream essentially consisting of non-reacted hydrogen and oxygen and the inert gas, (c) optionally adding to (iii) water in such a quantity so that its content is at least equal to that of the final aqueous solution of hydrogen peroxide; (d) sending the stream deriving from (c) to a system consisting of one or more evaporators or distillation columns from which the following are removed: (v) one or more streams containing all the alcohol and possibly water, which are recycled to (a); (vi) a concentrated aqueous solution of H2O2 at a concentration ranging from 15 to 60 % by weight; (vii) optionally a stream containing the water fed in excess in (c).

    摘要翻译： 包括以下步骤：（a）加入到含有基于钯和铂的催化剂的反应器中，所述催化剂是非均相的并保持分散在液体反应介质中：（i）液体流 由醇或C1-C3醇的混合物或所述醇与含有至少50重量％醇的水的混合物组成，还含有酸促进剂和卤化促进剂，所述醇和任选的全部或部分水 包含在从后续阶段d）再循环的物流中; （ii）含有氢气，氧气和惰性气体的气态物流，其特征在于氢气的浓度小于4.5体积％，氧气的浓度小于21体积％，100的补充物为 惰性气体; （b）从反应器中除去：（iii）由物流（i）组成并且还含有过氧化氢和反应产生的水的液体物流，其特征在于过氧化氢的浓度为2重量％至10重量％ ; 和（iv）主要由未反应的氢气和氧气和惰性气体组成的气流，（c）任选地向（iii）水中加入一定量的水以使其含量至少等于最终水溶液的含量 的过氧化氢; （d）将由（c）得到的料流输送到由一个或多个蒸发器或蒸馏塔组成的系统，从中除去以下物质：（v）含有所有醇和可能的水的一个或多个料流， 一个）; （vi）浓度范围为15至60重量％的H 2 O 2浓缩水溶液; （vii）任选地包含在（c）中过量供给的水的流。

    PROCESS FOR THE PREPARATION OF 1-OCTENE
    4.
    发明授权
    PROCESS FOR THE PREPARATION OF 1-OCTENE 有权
    工艺生产1-辛烯

    公开(公告)号：EP1678103B1

    公开(公告)日：2009-06-03

    申请号：EP04765947.9

    申请日：2004-10-11

    申请人： Polimeri Europa S.p.A.

    发明人： DELLEDONNE, Daniele ,  RIVETTI, Franco

    IPC分类号： C07C2/40 ,  C07C5/05

    CPC分类号： C07C5/05 ,  A23P20/20 ,  A61K9/006 ,  C07C2/406 ,  C07C2531/22 ,  C07C2531/24 ,  Y02P20/582

    摘要： Process in two steps for the preparation of 1-octene starting from butadiene which comprises: a first step (a) in which the bis-hydrodimerization of butadiene to 1,7-octadiene is effected in the presence of a catalyst based on a palladium complex containing one or more tri-substituted monodentate phosphines, in an aprotic polar solvent optionally containing an organic base; a second step (b) in which the partial catalytic hydrogenation of 1,7-octadiene to 1-octene is effected, the above process being characterized in that: (i) in the first step the aprotic polar solvent is selected from disubstituted cyclic ureas; (ii) in the second step the catalyst is selected from non­ supported ruthenium complexes having general formula (I I): RuXmLn (I I).

    PROCESS FOR THE RECYCLING OF EXPANDED POLYSTYRENE
    7.
    发明授权
    PROCESS FOR THE RECYCLING OF EXPANDED POLYSTYRENE 有权
    FOR聚苯乙烯回收利用方法扩增

    公开(公告)号：EP1907462B1

    公开(公告)日：2009-12-16

    申请号：EP06762235.7

    申请日：2006-06-28

    申请人： Polimeri Europa S.p.A.

    发明人： NOTARI, Marcello ,  RIVETTI, Franco ,  GHIRARDINI, Maurizio ,  LOMBARDINI, Sergio

    IPC分类号： C08J11/08 ,  C08L25/06

    CPC分类号： C08J11/08 ,  C08J2325/06 ,  Y02W30/701

    摘要： The invention relates to an enhanced process for the recycling of expanded polystyrene. Said process essentially comprises the reduction in volume of expanded polystyrene by means of dissolution in a solvent, separation of the insoluble components, selective precipitation of the polystyrene with an anti-solvent, separation, drying and extrusion of the precipitated polystyrene, recovery by distillation and recycling of the solvent. The process is characterized in that the anti-solvent is a butanol selected form n-butanol, iso-butanol or sec-butanol and the solvent is dimethyl carbonate, alone or in a mixture containing up to 25% by weight of butanol.