REGENERATION OF ACIDIC ION EXCHANGERS
    1.
    发明申请
    REGENERATION OF ACIDIC ION EXCHANGERS 失效
    酸性离子交换剂的再生

    公开(公告)号:US20100305365A1

    公开(公告)日:2010-12-02

    申请号:US12784870

    申请日:2010-05-21

    IPC分类号: C07C37/20 B01J38/60 B01J38/62

    摘要: The invention relates to a method for regenerating acidic cation exchangers, which are used as catalysts in the reaction of phenols with aldehydes or ketones to give bisphenols, in particular to give bisphenol A, with acids, with the proviso that, in the method according to the invention, these cation exchangers experience very little mechanical damage due to swelling processes during the regeneration process.

    摘要翻译: 本发明涉及一种用于再生酸性阳离子交换剂的方法,其用作苯酚与醛或酮反应的催化剂,以产生双酚,特别是产生双酚A与酸,条件是在根据 在本发明中,这些阳离子交换剂在再生过程中由于溶胀过程而经历很少的机械损伤。

    Regeneration of acidic ion exchangers
    2.
    发明授权
    Regeneration of acidic ion exchangers 失效
    酸性离子交换剂的再生

    公开(公告)号:US08410184B2

    公开(公告)日:2013-04-02

    申请号:US12784870

    申请日:2010-05-21

    IPC分类号: B01J38/60 B01J38/62

    摘要: The invention relates to a method for regenerating acidic cation exchangers, which are used as catalysts in the reaction of phenols with aldehydes or ketones to give bisphenols, in particular to give bisphenol A, with acids, with the proviso that, in the method according to the invention, these cation exchangers experience very little mechanical damage due to swelling processes during the regeneration process.

    摘要翻译: 本发明涉及一种用于再生酸性阳离子交换剂的方法,其用作苯酚与醛或酮反应的催化剂,以产生双酚,特别是产生双酚A与酸,条件是在根据 在本发明中,这些阳离子交换剂在再生过程中由于溶胀过程而经历很少的机械损伤。

    Crystallization processes for producing bisphenols
    3.
    发明授权
    Crystallization processes for producing bisphenols 有权
    生产双酚的结晶过程

    公开(公告)号:US07763757B2

    公开(公告)日:2010-07-27

    申请号:US11971268

    申请日:2008-01-09

    IPC分类号: C07C37/84 C07C39/16

    CPC分类号: C07C37/20 C07C37/84 C07C39/16

    摘要: Processes for producing bisphenols (e.g., bisphenol A (BPA)) having a purity greater than 99.7% are described, such processes including reacting a phenol and acetone in the presence of an acidic catalyst to form a product mixture comprising a bisphenol; removing at least a portion of the bisphenol from the product mixture in the form of a bisphenol/phenol adduct by crystallization, filtration and washing to provide bisphenol/phenol adduct crystals; and removing at least a portion of the phenol from the bisphenol/phenol adduct crystals to provide the bisphenol having a purity of more than 99.7%; wherein the crystallization comprises continuous suspension crystallization and is carried out in at least three crystallization devices arranged such that the product mixture is first cooled in a first stage of the crystallization to a temperature of 50 to 70° C. in a first crystallization device and a second crystallization device connected in parallel, and subsequently cooled in a second stage of the crystallization to a temperature of 40 to 50° C. in a third crystallization device connected downstream in series to the first and second crystallization devices, and wherein a total dwell time of the product mixture in the crystallization is more than 4 hours.

    摘要翻译: 描述了用于生产纯度大于99.7%的双酚(例如双酚A(BPA))的方法,包括在酸性催化剂存在下使苯酚和丙酮反应以形成包含双酚的产物混合物; 通过结晶,过滤和洗涤从双酚/苯酚加合物的形式从产物混合物中除去至少一部分双酚以提供双酚/苯酚加合物晶体; 并从双酚/苯酚加合物晶体中除去至少一部分苯酚,得到纯度大于99.7%的双酚; 其中所述结晶包括连续悬浮液结晶,并且在至少三个结晶装置中进行,所述结晶装置被排列成使得产物混合物在结晶的第一阶段首先在第一结晶装置中冷却至50至70℃, 第二结晶装置并联连接,随后在结晶的第二阶段中在与第一和第二结晶装置串联下游的第三结晶装置中冷却至40至50℃的温度,并且其中总停留时间 的产物混合物在结晶中超过4小时。

    Method for decanting preconditioned ion-exchange resin suspensions
    4.
    发明授权
    Method for decanting preconditioned ion-exchange resin suspensions 失效
    倾析预处理离子交换树脂悬浮液的方法

    公开(公告)号:US08133928B2

    公开(公告)日:2012-03-13

    申请号:US12129851

    申请日:2008-05-30

    IPC分类号: B01J47/10 B01J41/12

    CPC分类号: B01J31/08

    摘要: A process for the storage or transportation of pretreated, conditioned ion exchangers as catalysts for chemical reactions is disclosed. The preconditioned ion-exchange resin is kept as preconditioned ion-exchange resin suspension in a storage or transporting container. The container with the preconditioned ion-exchange resin suspension is transported to either a storage site for storage or to a reactor for transfer of the resin to the reactor.

    摘要翻译: 公开了一种用于储存或运输预处理的,调节离子交换剂作为化学反应催化剂的方法。 预处理的离子交换树脂作为预处理的离子交换树脂悬浮液保存在储存或运输容器中。 具有预处理的离子交换树脂悬浮液的容器被运输到用于储存的存储部位或用于将树脂转移到反应器的反应器。

    BRANCHED MELT POLYCARBONATE WITH LOW CONTENT OF DEFECTIVE STRUCTURES
    8.
    发明申请
    BRANCHED MELT POLYCARBONATE WITH LOW CONTENT OF DEFECTIVE STRUCTURES 有权
    具有低含量缺陷结构的分散熔融聚碳酸酯

    公开(公告)号:US20110251309A1

    公开(公告)日:2011-10-13

    申请号:US13081847

    申请日:2011-04-07

    CPC分类号: C08G64/14 C08G64/307 C08K5/49

    摘要: The present invention relates to an aromatic branched polycarbonate, produced via melt transesterification of a bisphenol with a diaryl carbonate in the presence of a branching agent, wherein the aromatic branched polycarbonate comprises branching point structures and structures of formula (D) wherein X is a single bond, C1- to C6-alkylene, C2- to C5-alkylidene or C5- to C6-cycloalkylidene, optionally substituted by C1- to C6-alkyl; wherein the amount of D in the aromatic branched polycarbonate is in the range of from 5 to 450 mg per kg of the aromatic branched polycarbonate; and wherein the ratio of the total branching point structures to the total structures of the formula D in the aromatic branched polycarbonate is in the range of from 8 to 200.

    摘要翻译: 本发明涉及通过在支化剂存在下通过双酚与碳酸二芳基酯的熔融酯交换制备的芳族支化聚碳酸酯,其中芳族支化聚碳酸酯包含分支点结构和式(D)的结构,其中X是单 键,C 1至C 6亚烷基,C 2至C 5亚烷基或C 5至C 6环烷叉基,任选被C 1至C 6 - 烷基取代; 其中所述芳族支化聚碳酸酯中的D的量在5至450mg / kg所述芳族支化聚碳酸酯的范围内; 并且其中芳族支化聚碳酸酯中总分支点结构与式D的总结构的比例在8至200的范围内。

    Purification of tris-hydroxyaryl compounds
    10.
    发明授权
    Purification of tris-hydroxyaryl compounds 有权
    三羟基芳基化合物的纯化

    公开(公告)号:US08507732B2

    公开(公告)日:2013-08-13

    申请号:US13081811

    申请日:2011-04-07

    IPC分类号: C07C39/16 C07C37/82

    CPC分类号: C07C37/82 C07C39/16

    摘要: The present invention is directed to a composition comprising a tris-hydroxyaryl compound having a metal ion impurity content of less than 10 ppm and to a process for the purification of tris-hydroxyaryl compound having a metal ion impurity, comprising at least the following steps: a) conditioning a sulphonic acid group-containing active ion exchanger with a solvent which is suitable for the handling of the tris-hydroxyaryl compounds, b) producing a solution of the tris-hydroxyaryl compounds to be purified in a solvent which is suitable for the handling of the tris-hydroxyaryl compounds, c) contacting the tris-hydroxyaryl compound-containing solution from b) with the conditioned ion exchanger from a), d) separating the tris-hydroxyaryl compound-containing solution from c) from the conditioned ion exchanger, e) removing at least part of the solvent from the solution of the tris-hydroxyaryl compound separated in d) under low temperature stress.

    摘要翻译: 本发明涉及包含金属离子杂质含量小于10ppm的三羟基芳基化合物和纯化具有金属离子杂质的三羟基芳基化合物的方法的组合物,至少包括以下步骤: a)用适合于处理三羟基芳基化合物的溶剂调节含磺酸基团的活性离子交换剂,b)产生待纯化的三羟基芳基化合物在适合于 处理三羟基芳基化合物,c)使来自b)的三羟基芳基化合物的溶液与a)的调节离子交换剂接触,d)从调节离子交换器中分离含有三羟基芳基化合物的溶液与c) ,e)在低温应力下从d)中分离的三羟基芳基化合物的溶液中除去至少一部分溶剂。