Process for removing titanium and zirconium from aqueous solutio

Details Process for removing titanium and zirconium from aqueous solutio Process for removing titanium and zirconium from aqueous solutio

1991-05-29

1992-02-11

Cintins, Ivars

Liquid purification or separation

Processes

Ion exchange or selective sorption

210667, 210684, 210685, 210724, C02F 900

Patent

active

050873733

ABSTRACT:
In a process of removing complexly bound titanium and/or zirconium from acid aqueous solutions the solution which contains the complexly bound titanium and/or zirconium is conditioned in that its pH value is raised to at least 8, any precipitate thus formed is removed and the solution thus treated is passed through an ion exchange plant comprising a cation exchange material and an anion exchange material. The solution is preferably passed through an ion exchange plant which contains the cation exchange material in the H.sup.+ form and the anion exchange material in the OH.sup.- form. The process is particularly intended for the treatment of solutions obtained by the chemical treatment of surfaces preferably of metals, which solutions contain titanium and/or zirconium in the form of fluoro complexes.

REFERENCES:
patent: 4839101 (1989-06-01), Kolarik et al.

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