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    • 27. 发明授权
    • Systems for purification of boron trichloride
    • 三氯化硼净化系统
    • US6361750B2
    • 2002-03-26
    • US72596500
    • 2000-11-29
    • AIR LIQUIDE AMERICAN
    • ZHOU DERONGJURSICH GREGORY MKEBBEKUS EARLE RBORZIO JOHN PUNER JASON R
    • C01B35/06F25J3/06F25J3/08B01J8/04
    • C01B35/061F17C2227/0302F17C2270/0518
    • Processes are disclosed for increasing the condensed phase production of BCl3 comprising less than about 10 ppm phosgene, less than 10 ppm chlorine, and less than 10 ppm HCl. In one embodiment the process comprises injecting an inert gas into a container having condensed BCl3 therein, the condensed BCl3 having therein a minor portion of phosgene impurity. A major portion of the phosgene in the condensed BCl3 is decomposed to carbon monoxide and chlorine by increasing temperature to produce a phosgene deficient stream. The temperature of the phosgene deficient stream is then decreased, and contacted with an adsorbent to remove the chlorine in the stream by adsorption to form a chlorine and phosgene free condensed stream. The chlorine and phosgene free stream is stripped using an inert gas to form a BCl3 product condensed stream, and an inert gas is used to pump the BCl3 product condensed stream to a product receiver.
    • 公开了用于增加包含小于约10ppm光气,小于10ppm氯和小于10ppm HCl的BCl 3的冷凝相生产的方法。 在一个实施方案中,该方法包括将惰性气体注入其中具有冷凝的BCl 3的容器中,冷凝的BCl 3中有少部分光气杂质。 浓缩的BCl 3中的光气的主要部分通过升高温度而分解成一氧化碳和氯,以产生光气不足的物流。 然后减少光气缺乏物流的温度,并与吸附剂接触以通过吸附除去流中的氯以形成无氯和无光气的冷凝物流。 使用惰性气体汽提氯和无光气流以形成BCl 3产物冷凝流,并使用惰性气体将BCl 3产物冷凝流泵送到产品接收器。