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    • 5. 发明授权
    • Method for producing sulfonated aryl phosphines
    • 制备磺化芳基膦的方法
    • US06610881B1
    • 2003-08-26
    • US09937640
    • 2001-12-12
    • Michael RiedelJurgen HerwigHelmut BahrmannKlaus BergrathWolfgang Zgorzel-SkiRobert EcklErnst WiebusCarl D FrohningWilfried FenskeFlorian Rampf
    • Michael RiedelJurgen HerwigHelmut BahrmannKlaus BergrathWolfgang Zgorzel-SkiRobert EcklErnst WiebusCarl D FrohningWilfried FenskeFlorian Rampf
    • C07C30900
    • B01J31/2404B01J31/2409B01J31/28B01J2231/321B01J2531/822B01J2531/96C07C45/50C07F9/5022C07F9/5054C07F9/5095C07C47/02
    • The invention relates to a method for producing sulfonated aryl phosphines by reacting aryl phosphines with oleum. After reacting the aryl phosphines with oleum, the sulfonation mixture is firstly diluted with water and an inert gas stream is then fed through the diluted sulfonation mixture until SO2 is no longer released from the diluted sulfonation mixture. Afterwards, the sulfonation mixture is subsequently processed in a usual manner. The invention also relates to a method for producing solutions of sulfonated aryl phosphines by reacting the aryl phosphines with oleum, diluting the sulfonation mixture with water, extracting the aqueous solution using an organic solution consisting of an amine, and subsequently carrying out a reextraction using an aqueous solution having an inorganic base. According to the invention, the solution containing aqueous sulfonated aryl phosphines is adjusted to a pH value of up to 3 by adding acid, and an inert gas stream is then fed through the aqueous solution until sulfur dioxide is no longer released. The invention additionally relates to an aqueous catalyst solution containing rhodium and an aqueous solution of sulfonated aryl phosphines, treated as defined by the invention, for carrying out the hydroformylation of olefinically unsaturated compounds, and relates to the use thereof for carrying out the same.
    • 本发明涉及通过使芳基膦与发烟硫酸反应制备磺化芳基膦的方法。 在芳基膦与发烟硫酸反应之后,首先用水稀释磺化混合物,然后将惰性气体流通过稀释的磺化混合物,直到SO 2不再从稀释的磺化混合物中释放出来。 之后,磺化混合物随后以常规方式进行处理。 本发明还涉及通过使芳基膦与发烟硫酸反应制备磺化芳基膦的溶液的方法,将磺化混合物与水稀释,使用由胺构成的有机溶液萃取水溶液,然后使用 具有无机碱的水溶液。 根据本发明,通过加入酸将含有磺化芳基膦水溶液的溶液的pH值调至3,然后将惰性气体流通过该水溶液直至二氧化硫不再释放。 本发明另外涉及含有铑的水性催化剂溶液和由本发明定义的磺化芳基膦的水溶液,用于进行烯属不饱和化合物的加氢甲酰化,并涉及其用于进行烯属不饱和化合物的加氢甲酰化。