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    • 3. 发明授权
    • Continuous production of organic phosphines
    • 连续生产有机膦
    • US4163760A
    • 1979-08-07
    • US872250
    • 1978-01-25
    • Georg ElsnerGero HeymerHans-Werner Stephan
    • Georg ElsnerGero HeymerHans-Werner Stephan
    • C07F9/50C07F9/6568C07F9/54
    • C07F9/5059C07F9/65683
    • Organic phosphines are produced by reacting an alkylene, cycloalkylene or aralkylene in the presence of a free radical-yielding catalyst. More specifically, a pressure reactor, which is provided in its interior with mixing elements, kept free from oxygen, and subdivided so as to comprise an upper cooling zone and a lower reaction zone, is continuously supplied from above with (a) a solution of the alkylene, cycloalkylene or aralkylene and the catalyst in an inert solvent, and (b) a stoichiometric excess of hydrogen phosphide, the said (a) and (b) reactants being supplied jointly with but separately from one another; the (a) and (b) reactants are mixed in the upper cooling zone of the reactor at about 0.degree. to 35.degree. C. and under a PH.sub.3 -pressure of about 80 to 300 bars; the resulting mixture, which travels downwardly in the reactor, is reacted in the lower reaction zone at about 90.degree. to 190.degree. C., the reactants being allowed to remain in the reactor for a period of time about 13 to 15 times longer than the half life period of the catalyst; the reaction mixture is removed through the bottom portion of the reactor and subjected to distillation so as to separate the organic phosphines.
    • 有机膦通过在产生自由基的催化剂存在下使亚烷基,亚环烷基或亚芳烷基反应来制备。 更具体地,在其内部设置有保持无氧的并且被分为包括上部冷却区和下部反应区的混合元件的压力反应器从上方连续地供给(a) 所述(a)和(b)反应物是由彼此共同供应的;(b)化学计量过量的磷酸氢盐,所述(a)和(b) (a)和(b)反应物在反应器的上部冷却区中在约0℃至35℃下混合,并在约80至300巴的PH3压力下混合; 在反应器中向下移动的所得混合物在下部反应区中在约90℃至190℃下反应,使反应物在反应器中保留约13至15倍的时间 催化剂的半衰期; 将反应混合物通过反应器的底部除去并进行蒸馏以分离有机膦。
    • 10. 发明授权
    • Process for making red phosphorus
    • 制造红磷的工艺
    • US4273752A
    • 1981-06-16
    • US123106
    • 1980-02-20
    • Klaus LehrGero HeymerHans-Werner StephanUrsus Thummler
    • Klaus LehrGero HeymerHans-Werner StephanUrsus Thummler
    • B01J8/10B01J19/28B02C17/00C01B25/02C01B25/023C01B25/01C01B25/04
    • C01B25/023
    • The invention relates to a process for making red phosphorus by subjecting molten yellow phosphorus to a thermal conversion reaction in a closed reaction zone. To this end, a hollow shaft-provided and closed ball mill is preheated to a reaction temperature within the range 280.degree. to 590.degree. C. Yellow phosphorus is continuously introduced into the ball mill through the hollow shaft in quantities per unit time which permit the reaction temperature prevailing inside the ball mill to be maintained without supply of heat from the outside. More particularly, decreasing quantities of yellow phosphorus are introduced per unit time at increasing temperature and increasing quantities of yellow phosphorus are introduced per unit time at decreasing temperature within the limits specified. Red phosphorus is allowed to cool inside the ball mill, water is poured over it and the whole is subjected to wet-grinding. An aqueous suspension of red phosphorus is finally removed from the ball mill.
    • 本发明涉及通过使熔融黄磷在封闭反应区中进行热转化反应来制备红磷的方法。 为此,空心轴提供和封闭的球磨机被预热到280℃至590℃的反应温度。黄磷通过空心轴以每单位时间的量连续地引入球磨机,这允许 球磨机内部的反应温度保持不受外界的热量的限制。 更特别地,在增加的温度下每单位时间引入黄磷的减少量,并且在规定的限度内在降低的温度下每单位时间引入增加量的黄磷。 使红磷在球磨机内冷却,将水倒在其上,整体进行湿磨。 最终从球磨机中除去红磷水悬浮液。