Process for recovery of zirconium basic sulfate

Details Process for recovery of zirconium basic sulfate Process for recovery of zirconium basic sulfate

C - Chemistry, Metallurgy

01

G

C01G 25/06 (2006.01) C22B 34/14 (2006.01)

Patent

CA 2303558

A process for providing a zirconium basic sulfate includes providing a zirconium oxychloride solution, and then dialyzing the solution against a liquid selected from water and an aqueous solution across at least one anion exchange membrane to provide a dialyzate and diffusate. The dialyzate includes at least 90 percent of the zirconium ions of the zirconium oxychloride chloride solution and has a total acidity that is lower than the original zirconium oxychloride solution. A precipitate including zirconium basic sulfate may be formed from at least a portion of the diffusate. The zirconium oxychloride solution may be provided, for example, by dissolving zirconium tetrachloride in one of water and a hydrochloric acid solution. A material including zirconium basic sulfate produced by the process of the invention also is disclosed.

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