Benzene phosphinic acid with improved flowability
    1.
    发明申请
    Benzene phosphinic acid with improved flowability 有权
    苯次膦酸具有改善的流动性

    公开(公告)号:US20050070732A1

    公开(公告)日:2005-03-31

    申请号:US10606945

    申请日:2003-06-26

    IPC分类号: C07F9/48 C07F9/02

    CPC分类号: C07F9/4841

    摘要: The present invention provides BZPA products with improved flowability and two methods of producing such BZPA products. Both methods successfully produce BZPA products that are not prone to agglomerate upon storage, and thus the flowability of such BZPA products does not degrade over time. The first method includes mechanically forming the BZPA crystals into large compacted pellets or briquettes without the introduction of any additives or binders. The compacted pellets are large enough that the physical and chemical effects that occur on the surface of small crystal particles are eliminated or minimized, but small enough that the BZPA can be easily handled and used in commercial applications. The second method includes adding a substantially inert anti-caking agent to the BZPA crystals to minimize or retard their tendency to agglomerate. The preferred anti-caking agent is silicon dioxide (SiO2), which is blended with the BZPA crystals in small amounts.

    摘要翻译: 本发明提供具有改善的流动性的BZPA产品和两种生产这种BZPA产品的方法。 两种方法成功地生产出在储存时不易凝集的BZPA产品,因此这种BZPA产品的流动性随时间而不降解。 第一种方法包括在不引入任何添加剂或粘合剂的情况下将BZPA晶体机械地形成大型压实颗粒或团块。 压实的颗粒足够大,使得在小晶体颗粒的表面上发生的物理和化学作用被消除或最小化,但足够小以致BZPA可以容易地在商业应用中被处理和使用。 第二种方法包括向BZPA晶体中加入基本上惰性的抗结块剂以最小化或延缓其结块的趋势。 优选的抗结块剂是二氧化硅(SiO 2),其与BZPA晶体少量混合。