PROCESS FOR PREPARING HIGH PURITY 1alpha-HYDROXY VITAMIN D2
    1.
    发明申请
    PROCESS FOR PREPARING HIGH PURITY 1alpha-HYDROXY VITAMIN D2 审中-公开
    制备高纯度1α-羟基维生素D 2的方法

    公开(公告)号:US20120108554A1

    公开(公告)日:2012-05-03

    申请号:US12914739

    申请日:2010-10-28

    摘要: The present invention relates to a process for purifying Doxercalciferol, a synthetic vitamin D analog, also known as 1α-hydroxy vitamin D2, to the purity greater than 99.5% by crystallization from a mixed solvent of methanol and acetonitrile. Each of the individual impurities can be controlled no more than 0.1% which meets the individual unknown impurities specification requirement of International Conference on Harmonisation (ICH) guideline. The crystallization yield is more than 75% which is suitable for employed as a commercial process.

    摘要翻译: 本发明涉及一种通过从甲醇和乙腈的混合溶剂中结晶纯化多克多钙醇(一种合成维生素D类似物,也称为1α-羟基维生素D2),其纯度大于99.5%的方法。 每种杂质可以控制在不超过0.1%,符合国际会议协调(ICH)指南的各种未知杂质规格要求。 结晶产率大于75%,适合用作商业工艺。

    Apparatus and process for vacuum sublimation
    2.
    发明申请
    Apparatus and process for vacuum sublimation 审中-公开
    真空升华装置和工艺

    公开(公告)号:US20080044327A1

    公开(公告)日:2008-02-21

    申请号:US11907548

    申请日:2007-10-15

    IPC分类号: B01B1/00

    CPC分类号: B01D7/00

    摘要: A vertical and a horizontal vacuum sublimation apparatus with high efficiency and processes thereof are provided, especially for the materials having high melting point and low vapor pressure. The vertical sublimation purification apparatus comprises a sublimation channel body, a material rack, a heating evaporation device, a condensation device, an incubating device and a product scratching device. The horizontal sublimation purification apparatus comprises a sublimation channel body, a material carrier, a heating evaporation device and two end pipes. The apparatuses of the present invention can be applied on high purity chemicals from mass production, and are capable of sublimating and purifying OLED illumination layer materials including ALq3, NPB and CuPc, which have high melting temperature and low vapor pressure.

    摘要翻译: 提供了一种高效率的垂直和水平真空升华装置及其工艺,特别是对于具有高熔点和低蒸气压的材料。 垂直升华净化装置包括升华通道体,材料架,加热蒸发装置,冷凝装置,孵育装置和产品刮擦装置。 水平升华净化装置包括升华通道体,材料载体,加热蒸发装置和两个端部管。 本发明的装置可以应用于批量生产的高纯度化学品,并且能够升华和净化具有高熔点和低熔点的ALQ 3 N,NPB和CuPc的OLED照明层材料 蒸汽压力。

    Apparatus and process for vacuum sublimation
    3.
    发明申请
    Apparatus and process for vacuum sublimation 有权
    真空升华装置和工艺

    公开(公告)号:US20050047979A1

    公开(公告)日:2005-03-03

    申请号:US10660715

    申请日:2003-09-12

    IPC分类号: B01D7/00 B01D7/02

    CPC分类号: B01D7/00

    摘要: A vertical and a horizontal vacuum sublimation apparatus with high efficiency and processes thereof are provided, especially for the materials having high melting point and low vapor pressure. The vertical sublimation purification apparatus comprises a sublimation channel body, a material rack, a heating evaporation device, a condensation device, an incubating device and a product scratching device. The horizontal sublimation purification apparatus comprises a sublimation channel body, a material carrier, a heating evaporation device and two end pipes. The apparatuses of the present invention can be applied on high purity chemicals from mass production, and are capable of sublimating and purifying OLED illumination layer materials including ALq3, NPB and CuPc, which have high melting temperature and low vapor pressure.

    摘要翻译: 提供了一种高效率的垂直和水平真空升华装置及其工艺,特别是对于具有高熔点和低蒸气压的材料。 垂直升华净化装置包括升华通道体,材料架,加热蒸发装置,冷凝装置,孵育装置和产品刮擦装置。 水平升华净化装置包括升华通道体,材料载体,加热蒸发装置和两个端部管。 本发明的装置可以应用于批量生产的高纯度化学品,并且能够升华和净化具有高熔点温度和低蒸气压的ALQ3,NPB和CuPc的OLED照明层材料。

    Vertical sublimation apparatus
    4.
    发明授权
    Vertical sublimation apparatus 有权
    垂直升华装置

    公开(公告)号:US07611548B2

    公开(公告)日:2009-11-03

    申请号:US10660715

    申请日:2003-09-12

    IPC分类号: B01D7/00

    CPC分类号: B01D7/00

    摘要: A vertical and a horizontal vacuum sublimation apparatus with high efficiency and processes thereof are provided, especially for the materials with high melting point and low vapor pressure. The vertical sublimation purification apparatus comprises a sublimation channel body, a material rack, a heating evaporation device, a condensation device, an incubating device, and a product scratching device. The horizontal sublimation purification apparatus comprises a sublimation channel body, a material carrier, a heating evaporation device, and two end pipes. The apparatuses of the present invention can be applied to the mass production of high purity chemicals, and are capable of sublimating and purifying OLED illumination layer materials including Alq3, NPB and CuPc, which have high melting temperature and low vapor pressure.

    摘要翻译: 提供了一种高效率的垂直和水平真空升华装置及其工艺,特别是对于具有高熔点和低蒸气压的材料。 垂直升华净化装置包括升华通道体,材料架,加热蒸发装置,冷凝装置,孵育装置和产品刮擦装置。 水平升华净化装置包括升华通道体,材料载体,加热蒸发装置和两个端部管。 本发明的装置可以应用于大量生产高纯度化学品,并且能够升华和净化具有高熔点温度和低蒸气压的Alq3,NPB和CuPc的OLED照明层材料。