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    • 10. 发明申请
    • METHOD FOR SEPARATING AMMONIAC
    • 用于分离氨
    • WO02008171A2
    • 2002-01-31
    • PCT/EP2001/007945
    • 2001-07-10
    • C01C1/08C01C1/10C07C231/06C07C231/24C07C237/06C07D201/16C07C231/00
    • C07C231/24C07D201/16
    • The invention relates to a method for separating ammoniac (I) from mixtures (II) containing ammoniac (I) and an amide (IV). The amide (IV) is obtained by reacting educts (III) selected from the group consisting of nitriles (IIIa), amines (IIIb), aminonitriles (IIIc) and aminoamides (IIId) with water. The method is characterised in that a) the educt (III) is reacted with water in liquid phase in the presence of an organic liquid diluting agent (V) to form a mixture (II) containing amide (IV) and ammoniac (I), b) the mixture (II) is transformed under conditions of mass, pressure and temperature - under which the diluting agent (V) and the water are in a liquid state and exhibit a miscibility gap - in order to obtain a two phase system consisting of a phase (VII), c) phase (VII) is separated from phase (VIII), d) the ammoniac present in phase (VII) is separated by extraction (a) by means of a mixture (IX) containing water in order to obtain a mixture (XI) which contains less ammoniac than phase (VII), and e) the diluting agent (V) is separated from the mixture (XI) in order to obtain the amide (IV).
    • 氨(I)的从混合物中分离(II)含有氨(I)的方法,和酰胺(IV),所述被离析物(III)是从由腈的基团(IIIa)中选择的反应而得到的酰胺(IV), 胺(IIIb)中,氨基腈(IIIc)中和氨基酰胺(IIId)中与水,与水,其特征在于a)所述离析物(III)在有机液体稀释剂(V的存在液相)(以混合物II)含酰胺 (IV)和氨(I)中,b)在数量,压力和温度条件的混合物(II),转移,在其下的稀释剂(V)和水是液体,并表现出混溶性间隙,得到由相的两两相体系(反应 VII)中,c分离)含有较少的氨的相位相(VII)(VIII)中,d)(在阶段VII)通过萃取现有氨(a)用被分离的水 - 混合物(IX)(以得到的混合物XI) 作为相位(VII),和 XI的(E)的混合物)的稀释剂(V),分离,得到酰胺(IV)。