利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

4 条记录 (耗时 0.015 秒)

    Hydrodynamic cavitation crystallization device and process
    2.
    发明申请
    Hydrodynamic cavitation crystallization device and process 有权
    流体动力学空化结晶装置及工艺

    公开(公告)号：US20060137598A1

    公开(公告)日：2006-06-29

    申请号：US11025560

    申请日：2004-12-29

    申请人： Oleg Kozyuk ,  Allan Myerson ,  Roger Weinberg

    发明人： Oleg Kozyuk ,  Allan Myerson ,  Roger Weinberg

    IPC分类号： H01L21/322

    CPC分类号： C30B7/00 ,  C30B29/54

    摘要： A device and process for crystallizing a compound using hydrodynamic cavitation comprising the steps of mixing at least one stream of a feed solution of such compound to be crystallized with at least one stream of an anti-solvent in a nucleating section via collision of the feed solution and the anti-solvent, passing the mixed streams at an elevated pressure through at least one local constriction of flow to create hydrodynamic cavitation thereby causing nucleation and the production of seed crystals, passing the fluid stream containing the seed crystals through an intermediate section to a crystal growth section, passing the fluid stream containing the seed crystals through the crystal growth section at an elevated pressure through at least one local constriction of flow to create hydrodynamic cavitation thereby causing further crystallization of the compound contained in the solution.

    摘要翻译： 一种用于使用流体动力空化使化合物结晶的装置和方法，包括以下步骤：将待结晶化合物的进料溶液的至少一种流与成核区中的至少一种抗溶剂流通过进料溶液的碰撞混合 和反溶剂，使得混合物流在升高的压力下通过至少一个局部的流动收缩以产生流体动力空化，从而导致晶核的成核和产生，使包含晶种的流体流通过中间部分 晶体生长部分，使包含晶种的流体流在升高的压力下通过晶体生长部分通过至少一个局部流动收缩，从而产生流体动力学空化，从而导致溶液中包含的化合物的进一步结晶。

    Method for using a static electric field to induce crystallization and to control crystal form
    3.
    发明申请
    Method for using a static electric field to induce crystallization and to control crystal form 失效
    使用静电场诱导结晶和控制晶体形式的方法

    公开(公告)号：US20050256300A1

    公开(公告)日：2005-11-17

    申请号：US11104714

    申请日：2005-04-13

    申请人： Bruce Garetz ,  Allan Myerson ,  Stephen Arnold ,  Janice Aber

    发明人： Bruce Garetz ,  Allan Myerson ,  Stephen Arnold ,  Janice Aber

    IPC分类号： B01D9/00 ,  C07K1/30 ,  C07K14/47 ,  C12N13/00 ,  C30B7/00 ,  C30B29/54 ,  C30B30/02

    CPC分类号： C30B29/58 ,  B01D9/005 ,  C07K1/306 ,  C12N13/00 ,  C30B7/00 ,  C30B29/54 ,  C30B30/02

    摘要： Applying a strong static DC electric field to supersaturated aqueous glycine solutions resulted in the nucleation of the γ polymorph attributed to the electric-field induced orientation of the highly polar glycine molecules in large preexisting solute clusters, helping them organize into a crystalline structure. A method to induce crystallization and to prepare polymorphs and/or morphologies of materials by using a static electric field to cause nucleation and crystal growth to occur in a supersaturated solution in such a way as to obtain a crystal structure that would not normally appear without the use of the static electric field. Aqueous glycine solutions were prepared by combining solid glycine and water. Supersaturated solutions were generated by heating the tubes to 62-64° C. and holding them at that temperature in an ultrasonicator overnight. Once the glycine was completely dissolved, the solutions were slowly cooled to room temperature. A chamber was constructed consisting of two brass electrodes separated by a 5 mm insulating gap, with a hole drilled down through the center, parallel to the gap-electrode interface, with a diameter large enough to accommodate the test tube. A DC voltage was applied across the electrodes, large enough to produce electric fields in the range of 400,000 to 800,000 V/m. Tests tubes containing the aged solutions were placed in the high-voltage chamber. Exposure of the aged solutions to fields of 600,000 V/m resulted in crystallization typically within 30-90 min. The onset of nucleation was observed visually by the formation of a needle-shaped crystallite.

    摘要翻译： 将强静态DC电场应用于过饱和甘氨酸水溶液导致伽马多晶型物的成核归因于大量预先存在的溶质簇中高极性甘氨酸分子的电场诱导取向，有助于它们组织成晶体结构。 通过使用静电场引起结晶并制备材料的多晶型物和/或形态的方法，以使得在过饱和溶液中发生成核和晶体生长，以获得通常不会出现的晶体结构 使用静电场。 通过将固体甘氨酸和水混合制备甘氨酸水溶液。 通过将管加热至62-64℃并将其在超声波隔离器中保持在该温度下来产生过饱和溶液。 一旦甘氨酸完全溶解，将溶液缓慢冷却至室温。 由两个黄铜电极构成的腔体由两个黄铜电极隔开，绝缘间隔为5mm，孔穿过中心平行于间隙 - 电极界面钻出，直径足够大以容纳试管。 在电极之间施加直流电压，其足够大以产生在400,000至800,000V / m的范围内的电场。 将含有老化溶液的试管置于高压室中。 将老化溶液暴露于600,000V / m的场中，结晶通常在30-90分钟内。 通过形成针状微晶目测观察成核的开始。