Process and apparatus for preparing uniform size polymer beads
    6.
    发明授权
    Process and apparatus for preparing uniform size polymer beads 失效
    制备均匀尺寸聚合物珠粒的方法和设备

    公开(公告)号:US4444961A

    公开(公告)日:1984-04-24

    申请号:US398007

    申请日:1982-07-14

    Applicant: Edward E. Timm

    Inventor: Edward E. Timm

    Abstract: Spheroidal polymer beads having a uniform size are prepared by polymerizing uniformly sized monomer droplets formed by the vibratory excitation of a laminar jet of monomeric material flowing in a continuous liquid medium containing a suitable suspending agent. For example, a laminar jet of a monomer mixture comprising a monovinylidene aromatic such as styrene, a polyvinylidene aromatic such as divinylbenzene and a polymerization initiator can be subjected to vibratory excitation and the resulting monomer droplets polymerized to yield copolymer beads having a narrow particle size range distribution. The resulting copolymer beads can be employed to prepare high yields of ion exchange resins exhibiting superior properties, particularly in continuous ion exchange operations.

    Abstract translation: 通过聚合通过在包含合适的悬浮剂的连续液体介质中流动的单体材料的层流射流的振动激发而形成的均匀尺寸的单体液滴来制备具有均匀尺寸的球形聚合物珠粒。 例如,可以对包含单亚乙烯基芳族化合物如苯乙烯,聚偏二乙烯基芳族化合物如二乙烯基苯和聚合引发剂的单体混合物的层流射流进行振动激发,并将所得单体液滴聚合以产生具有窄粒度范围的共聚物珠粒 分配。 所得到的共聚物珠粒可用于制备高产率的离子交换树脂,其表现出优异的性能,特别是在连续离子交换操作中。

    SYNTHESIS OF ORGANIC PEROXYDES USING AN OSCILLATORY FLOW MIXING REACTOR

    公开(公告)号:US20180304227A1

    公开(公告)日:2018-10-25

    申请号:US15768684

    申请日:2016-10-26

    Applicant: Arkema France

    Abstract: The present invention concerns a method and an apparatus (10, 20) for a continuous preparation of organic peroxides, with the reactor comprising at least one flow channel (1, 1a, 1b) configured as a reaction zone; an inlet system (2) in fluid communication with a first end of the at least one flow channel and configured for introducing two or more substances or a combination of substances into the at least one flow channel; an outlet system (3) in fluid communication with a second end of the at least one flow channel, the second end being located downstream of the first end and the outlet system being configured for extracting a reaction product present at the second end; an oscillatory system (4, 5) configured for superimposing an oscillatory flow on the flow of substances passing through the at least one flow channel, the oscillatory being effected in at least a section of the at least one flow channel; and a controller configured to implement the method by controlling the inlet system to introduce, according to a first time characteristic, at least two substances or a combination of substances into the at least one flow channel, the oscillatory system to superimpose an oscillatory flow on at least a part of the flow of substances passing through the at least one flow channel, and the outlet system to extract, on an ongoing basis, the reaction product formed in the flow channel from the substances introduced such that the output mass flow rate corresponding to the sum of the input mass flow rates.

    APPARATUS FOR MIXING BASED ON OSCILLATORY FLOW REACTORS PROVIDED WITH SMOOTH PERIODIC CONSTRICTIONS
    8.
    发明申请
    APPARATUS FOR MIXING BASED ON OSCILLATORY FLOW REACTORS PROVIDED WITH SMOOTH PERIODIC CONSTRICTIONS 审中-公开
    基于稳定流动反应器混合的装置,具有平滑的周期性约束条件

    公开(公告)号:US20160250615A1

    公开(公告)日:2016-09-01

    申请号:US15028299

    申请日:2014-10-13

    Abstract: The present application relates to an improved apparatus for mixing intensification in multiphase systems, which can be operating in continuous or batch mode. The apparatus is based on oscillatory flow mixing (OFM) and comprises a novel oscillatory flow reactor (OFR) provided with Smooth Periodic Constrictions (SPCs). The apparatus can be fully thermostatized and it is based on a modular system, in order to achieve most of the industrial application. The new OFR is suitable for multiphase applications such as screening reactions, bioprocess, gas-liquid absorption, liquid-liquid extraction, precipitation and crystallization. Regarding its size and geometry and the ability to operate at low flow rates, reagent requirements and waste are significantly reduced, as well as the operating costs, compared to the common reactor, such as continuous stirred tank reactor (CSTR) and the “conventional” OFR. The disclosed apparatus fulfil some of the gaps observed in the “conventional” OFR as well as in meso-OFR known. Excellent heat and mass transfer is obtained. The scale-up is predictable.

    Abstract translation: 本申请涉及用于混合多相系统中的强化的改进装置,其可以连续或间歇模式运行。 该装置基于振荡流混合(OFM),并且包括具有平滑周期约束(SPC)的新型振荡流反应器(OFR)。 该设备可以完全恒温,它基于模块化系统,以实现大多数工业应用。 新的OFR适用于筛选反应,生物处理,气液吸收,液 - 液萃取,沉淀和结晶等多相应用。 关于其尺寸和几何形状以及在低流量下操作的能力,与普通反应器(例如连续搅拌釜式反应器(CSTR)和“常规”)相比,试剂需求和废物以及操作成本显着降低, OFR。 所公开的设备满足在“常规”OFR以及已知的中观OFR中观察到的一些差距。 获得良好的热传质。 放大是可预测的。

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