公开(公告)号：US09428593B2

公开(公告)日：2016-08-30

申请号：US14122039

申请日：2011-05-26

Applicant: Flavio Simola ,  Aldo Appetiti ,  Andrea Angeletti

Inventor： Flavio Simola ,  Aldo Appetiti ,  Andrea Angeletti

IPC: B01J19/00 ,  B01J19/18 ,  C08F2/00 ,  C08F2/01 ,  C08F210/12 ,  C08F210/00 ,  C08F210/04 ,  C08F210/06 ,  C08F210/08 ,  C08F236/00 ,  C08F236/02 ,  C08F236/04 ,  C08F236/08

CPC classification number: C08F2/01 ,  B01J19/006 ,  B01J19/1875 ,  B01J2219/00081 ,  B01J2219/00254 ,  C08F210/12 ,  C08F236/08

Abstract: A low temperature polymerization reactor for the production of butyl rubber by catalytic polymerization of isobutylene with small amount of a conjugated diolefin such as isoprene includes: an extended upper head with fluid deflector fixed to the top tube-sheet, the shapes of the head and deflector being optimized in order to reach a very homogeneous slurry velocity in the rows of tubes and to minimize the pressure drop due to the inversion of flow from up-flow to down-flow and to the entrance of the slurry in the tubes; an hemispheric bottom head with fluid deflectors placed between the impeller and the bottom itself and designed to minimize the pressure drop due to the inversion of flow from down-flow to up-flow; and straightening baffles inside the draft tube, which shape and dimensions are optimized to turn the radial velocity components produced by the rotation of the impeller into axial velocity components.

Abstract translation: 用于通过异丁烯与少量共轭二烯烃如异戊二烯的催化聚合生产丁基橡胶的低温聚合反应器包括：具有固定在顶部管板上的流体偏转器的延伸的上部头部，头部和偏转器的形状 被优化以便在管排中达到非常均匀的浆料速度并且最小化由于从上流到下流和管道中的浆料入口的流动的反转而导致的压降的降低; 一个半球形底部头部，其中流体导流器放置在叶轮和底部本身之间，并设计成使由于从下流到上流的流动反转而导致的压降最小化; 以及在引流管内部矫正挡板，其形状和尺寸被优化以将由叶轮的旋转产生的径向速度分量转化为轴向速度分量。