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    • 6. 发明授权
    • Method for extracting amine compounds from a liquid medium
    • 从液体介质中提取胺化合物的方法
    • US06312578B1
    • 2001-11-06
    • US09269783
    • 1999-09-07
    • Edith CanivencDominique Horbez
    • Edith CanivencDominique Horbez
    • B01D6144
    • C08G69/28B01D61/44C07C209/84C07C227/40C07C211/12C07C229/08
    • The invention concerns a method for extracting by electrodialysis a compound comprising at least amine functions capable of protonation from a liquid medium. More particularly it concerns a method for extracting, and separating at least the monomers comprising amine functions capable of protonation from a liquid medium derived from the hydrolysis of polyamides. The method of extraction from a liquid medium consists in subjecting to protonation the amine function(s) of the compounds to be extracted by adjusting the pH of the medium and in separating the compounds by passing them through a cationic membrane under the effect of an electric current. The invention is particularly applicable in processes for the chemical stabilisation of polyamides such as the PA 66 PA 6.
    • 本发明涉及通过电渗析从液体介质中提取至少包含能够质子化的胺官能团的化合物的方法。 更具体地说,本发明涉及至少从包含衍生自聚酰胺水解的液体介质中分离含有能够质子化的胺官能团的单体的方法。 从液体培养基中提取的方法是通过调节培养基的pH并通过将化合物通过阳离子膜分离化合物来进行质子化的化学物质的胺官能团 当前。 本发明特别适用于PA 66 PA 6等聚酰胺的化学稳定化方法。