The invention pertains to a method for removing metallic ions and/or particulate material from an aqueous acid solution using particle removing membranes (e.g., ultra high molecular weight polyethylene) having immobilized ligand groups (e.g., macrocycle or other similar chelating ligands) that possess high equilibrium binding constants for ion and particulate removal. The method is particularly useful for simultaneously filtering/purifying aqueous hydrofluoric or hydrochloric acid.

A invenção pertence a um método para remover os íons metálicos e/ou o material particulate de uma solução ácida aqueous usando a partícula que remove as membranas (por exemplo, polietileno ultra elevado do peso molecular) immobilized os grupos do ligand (por exemplo, macrocycle ou outros ligands chelating similares) que possuem constantes obrigatórias do equilíbrio elevado para o íon e a remoção particulate. O método é particularmente útil para simultaneamente o ácido hydrofluoric de filtering/purifying ou hydrochloric aqueous.

 
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