MICROPARTICLE PRODUCTION PROCESS AND APPARATUS

    公开(公告)号:EP3389840A2

    公开(公告)日:2018-10-24

    申请号:EP16812959.1

    申请日:2016-12-16

    IPC分类号: B01J2/04 B01J2/08 B01J2/18

    CPC分类号: B01J2/08 B01J2/04 B01J2/18

    摘要: Provided is an apparatus for producing solid polymeric microparticles, the apparatus comprising a plurality of liquid droplet generators for forming liquid droplets of a first liquid, and a nozzle for forming a jet of a second liquid, wherein the plurality of liquid droplet generators and the nozzle are arranged relative to each other such that, in use, liquid droplets from the plurality of liquid droplet generators pass through a gas into said jet of second liquid. Also provided is a process for producing solid microparticles, the process comprising: providing a first liquid comprising a solute and a solvent, the solute comprising a biocompatible polymer, the concentration of polymer in the first liquid being at least 10% w/v, ‘w’ being the weight of the polymer and ‘v’ being the volume of the solvent, providing a plurality of liquid droplet generators operable to generate liquid droplets, providing a jet of a second liquid, causing the plurality of liquid droplet generators to form liquid droplets of the first liquid, passing the liquid droplets through a gas to contact the jet of the second liquid so as to cause the solvent to exit the droplets, thus forming solid microparticles, the solubility of the solvent in the second liquid being at least 5 g of solvent per 100 ml of second liquid, the solvent being substantially miscible with the second liquid.

    SPHERICAL POWDER AND ITS PREPARATION
    73.
    发明公开
    SPHERICAL POWDER AND ITS PREPARATION 审中-公开
    KUGELFÖRMIGESPULVER UND DESSEN EINE HERSTELLUNG

    公开(公告)号:EP3090985A1

    公开(公告)日:2016-11-09

    申请号:EP16151793.3

    申请日:2011-05-18

    摘要: A spherical tungsten carbide powder is characterized by that the material has a microhardness higher than 3600 kgf/mm 2 , and that the powder has an apparent density from 9.80 to 11.56 g/cm 3 . A method for the manufacture of a powder comprises the steps: a) providing a chamber comprising a rotatable crucible, b) adding material into said rotatable crucible, c) melting the material using a plasma arc discharge, d) rotating the crucible to atomize the molten material to form liquid droplets, with subsequent cooling of the droplets to obtain a powder, wherein the material added into said rotatable crucible is heated to a temperature above 40% of the melting temperature of the material before it enters the crucible. It is possible to reduce the current required for melting the stock. Heat losses are decreased, and the spherical powder obtained during atomization becomes more homogeneous in its composition and structure. The cost is reduced.

    摘要翻译: 球形碳化钨粉末的特征在于该材料具有高于3600kgf / mm 2的显微硬度,并且该粉末的表观密度为9.80至11.56g / cm 3。 一种用于制造粉末的方法包括以下步骤:a)提供包括可旋转坩埚的腔室,b)将材料添加到所述可旋转坩埚中,c)使用等离子体电弧放电来熔化材料,d)旋转坩埚以雾化 熔化的材料以形成液滴,随后冷却液滴以获得粉末,其中添加到所述可旋转坩埚中的材料在其进入坩埚之前被加热到材料的熔化温度的40%以上的温度。 可以减少熔化原料所需的电流。 热损失降低,雾化时得到的球状粉末的组成和结构变得更均匀。 成本降低。

    Apparatus and method for prilling a liquid, preferably urea melt
    76.
    发明公开
    Apparatus and method for prilling a liquid, preferably urea melt 审中-公开
    Vorrichtung und Verfahren zum Prillen einerFlüssigkeit,vorzugsweise Harnstoffschmelze

    公开(公告)号:EP3000524A1

    公开(公告)日:2016-03-30

    申请号:EP14186852.1

    申请日:2014-09-29

    申请人: Casale SA

    IPC分类号: B01J2/04 B01J2/18

    CPC分类号: B01J2/18 B01J2/04 B05B7/1459

    摘要: Apparatus for prilling a liquid, comprising a distributor for supplying said liquid, at least one dispenser, and a pulse generator, wherein said pulse generator: is situated in either one of said supply distributor and said dispenser; is passed through by at least a portion of said liquid; and comprises at least a first surface and a second surface, which face each other and perform a relative movement and comprise respective passages for the liquid; and wherein said first surface and second surface, which are passed through by the liquid, generate in the liquid periodic pulses of pressure having a predetermined frequency dependent on the relative speed of said two surfaces.

    摘要翻译: 用于造粒液体的装置,包括用于供应所述液体的分配器,至少一个分配器和脉冲发生器,其中所述脉冲发生器位于所述供应分配器和所述分配器中的任一个中; 被所述液体的至少一部分通过; 并且包括至少第一表面和第二表面,所述第一表面和第二表面彼此面对并执行相对运动并且包括用于液体的相应通道; 并且其中由所述液体通过的所述第一表面和第二表面产生具有取决于所述两个表面的相对速度的预定频率的液体周期性脉冲。

    MECHANICAL SYSTEM THAT FLUIDIZES, MIXES, COATS, DRIES, COMBINES, CHEMICALLY REACTS, AND SEGREGATES MATERIALS
    78.
    发明公开
    MECHANICAL SYSTEM THAT FLUIDIZES, MIXES, COATS, DRIES, COMBINES, CHEMICALLY REACTS, AND SEGREGATES MATERIALS 审中-公开
    对于流态化,混合,涂布,干燥,组合的化学反应和退休材料的机械系统

    公开(公告)号:EP2864030A1

    公开(公告)日:2015-04-29

    申请号:EP13730092.7

    申请日:2013-05-31

    IPC分类号: B01J2/00 B01J2/04 B01J2/18

    摘要: The present application is directed towards systems for adding components to materials being fluidized in a vibratory mixer by use of atomizers or sprayers. A mechanical system can fluidizes, mix, coat, dry, combine, or segregate materials. The system may comprise a vibratory mixer, mixing vessel containing a first material and a sprayer to introduce a second material. The vibratory mixer may generate a fluidized bed of a first material and the sprayer, coupled to the mixing vessel, may introduce a second material onto the fluidized bed to mix the materials in a uniform and even fashion.