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    PROCESS FOR CONTINUOUSLY PREPARING DIALKYL CARBONATE
    23.
    发明申请
    PROCESS FOR CONTINUOUSLY PREPARING DIALKYL CARBONATE 审中-公开
    连续制备碳酸氢钾的方法

    公开(公告)号：US20120130110A1

    公开(公告)日：2012-05-24

    申请号：US13280423

    申请日：2011-10-25

    申请人： Pieter Ooms ,  Friedhelm Risse ,  Andre Düx ,  Carsten Buchaly ,  Thomas Pancur ,  Arthur Susanto ,  Georg Ronge ,  Johan Vanden Eynde ,  Wim Wuytack

    发明人： Pieter Ooms ,  Friedhelm Risse ,  Andre Düx ,  Carsten Buchaly ,  Thomas Pancur ,  Arthur Susanto ,  Georg Ronge ,  Johan Vanden Eynde ,  Wim Wuytack

    IPC分类号： C07C68/08

    CPC分类号： C07C68/08 ,  C07C69/96

    摘要： The present invention relates to a process comprising purifying dialkyl carbonates of the formula (II) in one or more columns in the presence of an alkylene oxide of the formula (V) and of an alkyl alcohol of the formula (IV) wherein R1 and R2 represent, independently of one another, linear or branched, substituted or unsubstituted C1-C6-alkyl, R3 and R4 represent, independently of one another, hydrogen, substituted or unsubstituted C1-C4-alkyl, substituted or unsubstituted C2-C4-alkenyl or substituted or unsubstituted C6-C12-aryl, and R5 represents a straight-chain or branched C1-C4-alkyl; and wherein the mean residence time of the dialkyl carbonate in the column(s) is from 0.3 h to 3 h.

    摘要翻译： 本发明涉及一种方法，其包括在式（V）的烯化氧和式（IV）的烷基醇存在下，在一个或多个塔中纯化式（II）的碳酸二烷基酯，其中R 1和R 2 彼此独立地表示直链或支链的取代或未取代的C 1 -C 6烷基，R 3和R 4彼此独立地表示氢，取代或未取代的C 1 -C 4 - 烷基，取代或未取代的C 2 -C 4 - 烯基或 取代或未取代的C 6 -C 12 - 芳基，R 5表示直链或支链C 1 -C 4烷基; 并且其中所述柱中碳酸二烷基酯的平均停留时间为0.3h至3h。

    Phase boundary processes for preparing polycarbonates
    25.
    发明授权
    Phase boundary processes for preparing polycarbonates 有权
    制备聚碳酸酯的相边界法

    公开(公告)号：US07847051B2

    公开(公告)日：2010-12-07

    申请号：US12398243

    申请日：2009-03-05

    申请人： Wolfgang Ebert ,  Christian Kords ,  Rolf Bachmann ,  Lars Obendorf ,  Johan Vanden Eynde ,  Bert Ruytinx ,  Johann Seeba

    发明人： Wolfgang Ebert ,  Christian Kords ,  Rolf Bachmann ,  Lars Obendorf ,  Johan Vanden Eynde ,  Bert Ruytinx ,  Johann Seeba

    IPC分类号： C08G64/00 ,  C08G63/18

    CPC分类号： C08G64/24

    摘要： Continuous processes for preparing polycarbonates having a weight average molecular weight Mw, of 15,000 to 200,000 g/mol, the processes comprising reacting a dihydroxydiarylalkane and phosgene in the presence of a catalyst in a phase boundary process comprising: continuously dispersing in a disperser an organic phase comprising at least a portion of the phosgene and a solvent suitable for the polycarbonate and an aqueous phase comprising the dihydroxydiarylalkane, water and an alkali solution present in an amount of 1.5 to 2.5 moles per mole of the dihydroxydiarylalkane, to form a mixture; reacting the mixture in a first reactor with a residence time of less than 0.5 seconds; further reacting the mixture in a second reactor with addition of further alkali solution and, optionally, a chain terminator; and effecting further condensation in a third reactor with addition of further alkali solution and, optionally, a chain terminator, in the presence of the catalyst.

    摘要翻译： 用于制备重均分子量Mw为15,000至200,000g / mol的聚碳酸酯的连续方法，包括在相界过程中在催化剂存在下使二羟基二芳基烷烃和光气反应的方法包括：在分散机中连续分散有机相 包含至少一部分光气和适用于聚碳酸酯的溶剂和包含二羟基二芳基烷烃的水相，每摩尔二羟基二芳基烷烃存在的量为1.5至2.5摩尔的水和碱溶液形成混合物; 使混合物在第一反应器中反应，停留时间小于0.5秒; 在第二反应器中进一步使混合物反应，再加入另外的碱溶液和任选的链终止剂; 并在催化剂存在下，在第三反应器中进一步加入另外的碱溶液和任选的链终止剂。

    PROCESS FOR THE PRODUCTION OF DIARYL CARBONATES AND TREATMENT OF ALKALICHLORIDE SOLUTIONS RESULTING THEREFROM
    27.
    发明申请
    PROCESS FOR THE PRODUCTION OF DIARYL CARBONATES AND TREATMENT OF ALKALICHLORIDE SOLUTIONS RESULTING THEREFROM 审中-公开
    生产二氧化碳的方法和治疗其结果的碱性溶液

    公开(公告)号：US20080053836A1

    公开(公告)日：2008-03-06

    申请号：US11849542

    申请日：2007-09-04

    申请人： Andreas Bulan ,  Pieter Ooms ,  Rainer Weber ,  Johann Rechner ,  Marc Buts ,  Johan Vanden Eynde

    发明人： Andreas Bulan ,  Pieter Ooms ,  Rainer Weber ,  Johann Rechner ,  Marc Buts ,  Johan Vanden Eynde

    IPC分类号： C25B3/02

    CPC分类号： C25B1/34 ,  C01D3/04 ,  C01D3/06 ,  C07C68/02 ,  C07C69/96

    摘要： Processes comprising: (a) reacting phosgene and a monohydroxyl aryl compound in the presence of a suitable catalyst to form a diaryl carbonate and a solution comprising an alkali chloride; (b) separating the diaryl carbonate from the solution; (c) adjusting the pH of the solution to a value of less than or equal to 8 to form a pH-adjusted solution; (d) treating the pH-adjusted solution with an adsorbent to form a treated solution; (e) subjecting at least a portion of the treated solution to electrochemical oxidation to form chlorine and an alkali hydroxide solution; and (f) recycling at least a portion of one or both of the chlorine and the alkali hydroxide solution.

    摘要翻译： 方法包括：（a）在合适的催化剂存在下使光气和单羟基芳基化合物反应，形成碳酸二芳酯和包含碱金属氯化物的溶液; （b）从溶液中分离碳酸二芳酯; （c）将溶液的pH调节至小于或等于8的值以形成pH调节的溶液; （d）用吸附剂处理pH调节的溶液以形成处理溶液; （e）使经处理的溶液的至少一部分进行电化学氧化以形成氯和碱金属氢氧化物溶液; 和（f）回收氯和氢氧化碱溶液中的一种或两种的至少一部分。

    Processes for purifying diaryl carbonates
    30.
    发明授权
    Processes for purifying diaryl carbonates 有权
    净化碳酸二芳基酯的方法

    公开(公告)号：US08022240B2

    公开(公告)日：2011-09-20

    申请号：US12274776

    申请日：2008-11-20

    申请人： Pieter Ooms ,  Johann Rechner ,  Matthias Böhm ,  Andre Düx ,  Kaspar Hallenberger ,  Georg Ronge ,  Johan Vanden Eynde

    发明人： Pieter Ooms ,  Johann Rechner ,  Matthias Böhm ,  Andre Düx ,  Kaspar Hallenberger ,  Georg Ronge ,  Johan Vanden Eynde

    IPC分类号： C07C67/02

    CPC分类号： C07C68/08 ,  B01D3/14 ,  B01D3/141 ,  Y02P20/57 ,  C07C69/96

    摘要： Processes comprising: transesterifying a dialkyl carbonate and an aromatic hydroxyl compound in the presence of a transesterification catalyst to provide a diaryl carbonate product comprising the transesterification catalyst as an impurity; subjecting the diaryl carbonate product to distillation in a first distillation column having an upper part and a lower part, wherein the upper part comprises a rectifying section and the lower part comprises a stripping section; and withdrawing a first sidestream from the first distillation column, wherein the first sidestream comprises a purified diaryl carbonate.

    摘要翻译： 方法包括：在酯交换催化剂存在下酯交换碳酸二烷基酯和芳族羟基化合物，得到包含酯交换催化剂作为杂质的碳酸二芳酯产物; 在具有上部和下部的第一蒸馏塔中对碳酸二芳基酯进行蒸馏，其中上部包括精馏段，下部包含汽提段; 以及从所述第一蒸馏塔排出第一侧流，其中所述第一侧流包含纯化的碳酸二芳基酯。