[EN] METHOD FOR THE MANUFACTURE OF AMINO ALKYLENE PHOSPHONIC ACIDS<br/>[FR] PROCÉDÉ POUR PRODUIRE DES ACIDES PHOSPHONIQUES D'AMINOALKYLÈNE
申请人:STRAITMARK HOLDING AG
公开号:WO2010136566A1
公开(公告)日:2010-12-02
A method for the manufacture of aminoalkylene phosphonic acids broadly is disclosed. In the essence, an amine corresponding to a specific formula is reacted in aqueous medium with phosphorous acid and formaldehyde to thereby yield a medium insoluble reaction product. The insoluble product formed i.e. the aminoalkylene phosphonic acid can be separated, optionally washed, and recovered. This process yields high purity and selectivity reaction products. The excess phosphonic acid can be recycled into the processing sequence.
本发明公开了一种制备氨基烷基膦酸的方法。本方法的实质是,在水介质中,将符合特定化学式的胺与膦酸和甲醛反应,从而得到一种不溶于介质的反应产物。所得的不溶产物即为氨基烷基膦酸,可以分离、洗涤和回收。这个过程可以产生高纯度和选择性的反应产物。多余的膦酸可以回收再利用。