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    Method for Intermittently Producing 4,4'-Diaminodicyclohexylmethane with a Low Amount of the Trans-trans Isomer
    1.
    发明申请
    Method for Intermittently Producing 4,4'-Diaminodicyclohexylmethane with a Low Amount of the Trans-trans Isomer 有权
    间歇生产低反式异构体的4,4'-二氨基二环己基甲烷的方法

    公开(公告)号：US20120323041A1

    公开(公告)日：2012-12-20

    申请号：US13517195

    申请日：2011-06-03

    申请人： Shuang Hu ,  Hao Chen ,  Zilin Ni ,  Wangshun Qi ,  Zhongying Chen ,  Zhiyuan Liu ,  Xudong Wang ,  Zhanyu Zhao ,  Weiqi Hua

    发明人： Shuang Hu ,  Hao Chen ,  Zilin Ni ,  Wangshun Qi ,  Zhongying Chen ,  Zhiyuan Liu ,  Xudong Wang ,  Zhanyu Zhao ,  Weiqi Hua

    IPC分类号： C07C209/00

    CPC分类号： C07C209/72 ,  C07C209/86 ,  C07C2601/14 ,  C07C211/36

    摘要： The present invention discloses a method for intermittently producing 4,4′-diaminodicyclohexyl methane (H12MDA) with a low amount of the trans-trans isomer thereof, which comprises: controlling the reaction process by stopping the reaction when, except for a solvent, the reaction solution comprises MDA of 0-5 wt % and H6MDA of 1-20 wt %; and b) separating the reaction solution obtained from step a) by conventional means to obtain H12MDA product with desired purity, and allowing the un-reacted material and intermediate product to be recycled to the reactor after being accumulated. The method of the present invention decreases the amount of the trans-trans isomer in H12MDA, increases the yield of the reaction, and reduces the production cost. The present invention also provides a post treatment process of the reaction mixture.

    摘要翻译： 本发明公开了间歇地制备低反式异构体的4,4'-二氨基二环己基甲烷（H12MDA）的方法，该方法包括：除溶剂外，通过停止反应来控制反应过程 反应溶液包含0-5重量％的MDA和1-20重量％的H6MDA; 和b）通过常规方法分离由步骤a）获得的反应溶液以获得具有所需纯度的H12MDA产物，并且使未反应的材料和中间产物在积聚后再循环到反应器中。 本发明的方法降低了H12MDA中反式异构体的量，提高了反应的产率，降低了生产成本。 本发明还提供了反应混合物的后处理方法。

    Method of preparing polymethylene-polyphenyl-polyamine
    3.
    发明申请
    Method of preparing polymethylene-polyphenyl-polyamine 有权
    聚亚甲基 - 多苯基多胺的制备方法

    公开(公告)号：US20080249261A1

    公开(公告)日：2008-10-09

    申请号：US11873056

    申请日：2007-10-16

    申请人： Jiansheng Ding ,  Jianfeng Chen ,  Hongke Zhang ,  Haikui Zou ,  Weiqi Hua ,  Pengyuan Zhang ,  Shuchang Sun ,  Guangwen Chu ,  Limin Xu

    发明人： Jiansheng Ding ,  Jianfeng Chen ,  Hongke Zhang ,  Haikui Zou ,  Weiqi Hua ,  Pengyuan Zhang ,  Shuchang Sun ,  Guangwen Chu ,  Limin Xu

    IPC分类号： C08F2/01

    CPC分类号： C08G73/0266 ,  C08L79/02

    摘要： The present invention provides a method of preparing polymethylene-polyphenyl-polyamine (briefly referred to as polyamine, DAM), in which a high gravity rotating bed is used as the mixing reactor of formaldehyde and aniline hydrochloride, the mixing solution of aniline hydrochloride and circulation solution and the formaldehyde are fed into the high gravity rotating bed reactor proportionally to carry out mixing and condensation reaction under a condition of a very high gravity; the materials leaving the high gravity rotating bed reactor is introduced into a stirred vessel to proceed with the pre-condensation reaction and obtain a condensation solution; and the process steps of heating, molecular rearrangement, neutralization, water washing and purification, etc. are completed to obtain the refined DAM. With the method according to the present invention, the main by-products is obviously reduced in the condensation process, the phenomenon of deposit attaching to the inner walls of circulation pipes and heat exchanger and blockage are prevented in the condensation process, the impurity content is low in the refined DAM, and the subsequent product MDI has a lighter color, the product quality is stable and may be improved to a certain extent.

    摘要翻译： 本发明提供了使用高重力旋转床作为甲醛和苯胺盐酸盐的混合反应器的多亚甲基 - 多苯基多胺（简称为多胺，DAM）的制备方法，盐酸苯胺和循环的混合溶液 溶液和甲醛按比例进料到高重力旋转床反应器中，以在非常高的重力条件下进行混合和缩合反应; 将离开高重力旋转床反应器的材料引入搅拌容器中以进行预缩合反应并获得缩合溶液; 完成加热，分子重排，中和，水洗净化等工艺步骤，得到精制DAM。 根据本发明的方法，冷凝过程中主要副产物明显减少，在冷凝过程中防止了附着在循环管内壁和热交换器上的沉积现象，堵塞现象，杂质含量为 精炼DAM低，后续产品MDI颜色较浅，产品质量稳定，可在一定程度上提高。

    High-speed mixing reactor and application thereof
    5.
    发明授权
    High-speed mixing reactor and application thereof 有权
    高速混合反应器及其应用

    公开(公告)号：US09138717B2

    公开(公告)日：2015-09-22

    申请号：US13499703

    申请日：2010-12-29

    申请人： Jiansheng Ding ,  Dezhen Sun ,  Weiqi Hua ,  Qingle Hou ,  Wenbo Wang ,  Xueli Yu

    发明人： Jiansheng Ding ,  Dezhen Sun ,  Weiqi Hua ,  Qingle Hou ,  Wenbo Wang ,  Xueli Yu

    IPC分类号： B01F15/02 ,  B01J19/18 ,  B01F7/00 ,  B01F7/02 ,  B01J19/00 ,  B01J19/26 ,  C07C209/78 ,  C07C263/10 ,  C08G12/08

    CPC分类号： B01J19/18 ,  B01F7/008 ,  B01F7/024 ,  B01F7/025 ,  B01J19/002 ,  B01J19/26 ,  B01J2219/00189 ,  B01J2219/00247 ,  B01J2219/00765 ,  C07C209/78 ,  C07C263/10 ,  C08G12/08 ,  C07C211/50 ,  C07C265/14

    摘要： Disclosed is a rapid mixing reactor, comprising a first feed-in passage housing, a reactor housing, a second feed-in passage, a hollow blade-wheel feed distributor, a rotation shaft, and a first feed distributor, wherein the first feed-in passage housing and the reactor housing are constructed coaxially and communicated with each other; the second feed-in passage, the hollow blade-wheel feed distributor and the rotation shaft each are fixed in connection with each other in the sequence along the central axis of the reactor; the hollow blade-wheel feed distributor is located within the reactor housing and rotates axially under the driving force of the rotation shaft; the second feed-in passage is connected with the hollow blade-wheel feed distributor; the first feed-in passage housing is set up with at least one first feed-in inlet therein; the reactor housing is set up with at least one reaction liquid outlet at its distal end; and the first feed distributor and the hollow blade-wheel feed distributor are provided with first feed-in jetting hole(s) and second feed-in jetting hole(s), respectively. The reactor is capable of effecting instantaneously rapid mixing of two streams of fluid under a massive capacity, and improving the yield and quality of the target product.

    摘要翻译： 公开了一种快速混合反应器，其包括第一进料通道壳体，反应器壳体，第二进料通道，中空叶轮进料分配器，旋转轴和第一进料分配器，其中第一进料 - 在通道壳体和反应器壳体中构造为同轴并且彼此连通; 第二进料通道，空心叶轮进给分配器和旋转轴各自沿着反应器的中心轴线依次彼此固定; 空心叶轮进给分配器位于反应器壳体内并在旋转轴的驱动力下轴向旋转; 第二进料通道与空心叶轮进给分配器连接; 第一入口通道壳体中设置有至少一个第一入口入口; 反应器壳体在其远端设置有至少一个反应液体出口; 并且第一进料分配器和空心叶轮进给分配器分别设置有第一进料喷射孔和第二进料喷射孔。 该反应器能够在大容量下瞬间快速混合两股流体，并提高目标产品的产量和质量。

    Method for intermittently producing 4,4′-diaminodicyclohexylmethane with a low amount of the trans-trans isomer
    6.
    发明授权
    Method for intermittently producing 4,4′-diaminodicyclohexylmethane with a low amount of the trans-trans isomer 有权
    间歇地生产低反式异构体的4,4'-二氨基二环己基甲烷的方法

    公开(公告)号：US08759591B2

    公开(公告)日：2014-06-24

    申请号：US13517195

    申请日：2011-06-03

    申请人： Shuang Hu ,  Hao Chen ,  Zilin Ni ,  Wangshun Qi ,  Zhongying Chen ,  Zhiyuan Liu ,  Xudong Wang ,  Zhanyu Zhao ,  Weiqi Hua

    发明人： Shuang Hu ,  Hao Chen ,  Zilin Ni ,  Wangshun Qi ,  Zhongying Chen ,  Zhiyuan Liu ,  Xudong Wang ,  Zhanyu Zhao ,  Weiqi Hua

    IPC分类号： C07C209/00

    CPC分类号： C07C209/72 ,  C07C209/86 ,  C07C2601/14 ,  C07C211/36

    摘要： The present invention discloses a method for intermittently producing 4,4′-diaminodicyclohexyl methane (H12MDA) with a low amount of the trans-trans isomer thereof, which comprises: controlling the reaction process by stopping the reaction when, except for a solvent, the reaction solution comprises MDA of 0-5 wt % and H6MDA of 1-20 wt %; and b) separating the reaction solution obtained from step a) by conventional means to obtain H12MDA product with desired purity, and allowing the un-reacted material and intermediate product to be recycled to the reactor after being accumulated. The method of the present invention decreases the amount of the trans-trans isomer in H12MDA, increases the yield of the reaction, and reduces the production cost. The present invention also provides a post treatment process of the reaction mixture.

    摘要翻译： 本发明公开了间歇地制备低反式异构体的4,4'-二氨基二环己基甲烷（H12MDA）的方法，该方法包括：除溶剂外，通过停止反应来控制反应过程 反应溶液包含0-5重量％的MDA和1-20重量％的H6MDA; 和b）通过常规方法分离由步骤a）获得的反应溶液以获得具有所需纯度的H12MDA产物，并且使未反应的材料和中间产物在积聚后再循环到反应器中。 本发明的方法降低了H12MDA中反式异构体的量，提高了反应的产率，降低了生产成本。 本发明还提供了反应混合物的后处理方法。

    Process of Producing Chlorine Gas by Catalytic Oxidation of Hydrogen Chloride
    9.
    发明申请
    Process of Producing Chlorine Gas by Catalytic Oxidation of Hydrogen Chloride 审中-公开
    氯化氢催化氧化生产氯气的工艺

    公开(公告)号：US20150037243A1

    公开(公告)日：2015-02-05

    申请号：US14370608

    申请日：2012-05-26

    申请人： Jiansheng Ding ,  Wuxi Luo ,  Bin Chen ,  Kunpeng Zhang ,  Weiqi Hua

    发明人： Jiansheng Ding ,  Wuxi Luo ,  Bin Chen ,  Kunpeng Zhang ,  Weiqi Hua

    IPC分类号： C01B7/04 ,  C01B7/07

    CPC分类号： C01B7/04 ,  C01B7/0706 ,  C01B7/0737 ,  Y02P20/228

    摘要： A process of producing chlorine gas by catalytic oxidation of hydrogen chloride including: incorporating an oxidizing agent such as ozone, hydrogen peroxide solution etc. into a gas stream of hydrogen chloride containing impurities, conducting oxidation pretreatment of the gas stream under the action of ultrasonic wave, such that the impurities contained in the gas stream are oxidized; wherein the oxidizing agent does not generate additional or new impurities in the reaction system, where the gas stream obtained after the oxidation pretreatment is allowed to pass through a separating device wherein the oxidized impurities in the form of liquid and/or the oxidized impurities in the form of solid are removed from the gas stream so as to obtain a purified gas stream of hydrogen chloride, and thereafter the purified gas stream of hydrogen chloride is well mixed with a gas stream containing molecular oxygen, the resultant gas mixture is preheated to a reaction temperature, and then catalytically oxidized to produce chlorine gas, thus by means of oxidation pretreatment and separation, the process can remove efficiently the sulfur-containing impurities, the halogen-containing impurities, hydrocarbon impurities and the like from the gas stream of hydrogen chloride, and does not generate additional impurities.

    摘要翻译： 一种通过氯化氢的催化氧化生产氯气的方法，包括：将氧化剂如臭氧，过氧化氢溶液等掺入含有杂质的氯化氢气流中，在超声波作用下对气流进行氧化预处理 使得气流中所含的杂质被氧化; 其中所述氧化剂在所述反应体系中不产生额外的或新的杂质，其中在所述氧化预处理之后获得的气流允许通过分离装置，其中所述液体形式的氧化杂质和/或所述氧化杂质在 从气流中除去固体形式，以获得氯化氢的纯化气流，然后将纯化的氯化氢气流与含有分子氧的气流充分混合，将所得气体混合物预热至反应 温度，然后催化氧化生成氯气，通过氧化预处理和分离，该方法可以有效地从氯化氢气流中除去含硫杂质，含卤素杂质，烃类杂质等， 并且不产生额外的杂质。

    3-aminomethyl-3, 5, 5-trimethyl cyclohexylamine preparation method
    10.
    发明授权
    3-aminomethyl-3, 5, 5-trimethyl cyclohexylamine preparation method 有权
    3-氨基甲基-3,5,5-三甲基环己胺制备方法

    公开(公告)号：US08829245B2

    公开(公告)日：2014-09-09

    申请号：US14113907

    申请日：2011-09-06

    申请人： Changsheng Chen ,  Yuan Li ,  Wenjuan Zhao ,  Hongyin Cui ,  Weiqi Hua

    发明人： Changsheng Chen ,  Yuan Li ,  Wenjuan Zhao ,  Hongyin Cui ,  Weiqi Hua

    IPC分类号： C07C209/48 ,  C07C209/62 ,  C07C211/36

    CPC分类号： C07C209/62 ,  C07C209/48 ,  C07C209/52 ,  C07C211/36 ,  C07C253/30 ,  C07C2601/14 ,  C07C255/61 ,  C07C255/46

    摘要： Provided is a 3-aminomethyl-3,5,5-trimethylcyclohexylamine preparation method. A feeding flow of 3-cyano-3,5,5-trimethylcyclohexylamine is reacted with NH3 and hydrogen in the presence of a hydrogenation catalyst; the method is characterized by: firstly adding a basic compound to the feeding flow of 3-cyano-3,5,5-trimethylcyclohexylamine, and then after a portion of 3-cyano-3,5,5-trimethylcyclohexylamine has reacted, adding an acidic compound to reaction materials for further hydrogenation reaction to prepare the product. The method ensures that the aminonitrile content in the product is low, thus effectively reducing the duration of the reaction and greatly reducing the consumption of the catalyst during the hydrogenation reaction process.

    摘要翻译： 提供了3-氨基甲基-3,5,5-三甲基环己胺的制备方法。 在氢化催化剂存在下，使3-氰基-3,5,5-三甲基环己胺的进料流与NH 3和氢气反应; 该方法的特征在于：首先向3-氰基-3,5,5-三甲基环己胺的进料流中加入碱性化合物，然后在一部分3-氰基-3,5,5-三甲基环己胺反应后，加入 酸性化合物与反应物进行进一步氢化反应制备产物。 该方法可确保产品中的氨腈含量低，有效降低反应持续时间，大大降低催化剂在氢化反应过程中的消耗。