Recovery of copper and vanadium from a solution containing iron
Abstract
Abstract DISSOLVED VANADIUM AND COPPER ARE RECOVERED FROM A SOLUTION WHICH ALSO CONTAINS DISSOLVED IRON BY CONTACTING THE SOLUTION WITH A CATION EXCHANGE RESIN IN THE HYDROGEN FORM, WHEREBY THE COPPED AND VANDAIUM ARE ACCUMULATED IN THE ION EXCHANGE BED. THE BED IS ELUTED PERIODICALLY WITH A STRONG MINERAL ACID, SUCH AS NITRIC ACID. THE IRON IS EITHER SELECTIVELY COMPLEXED WITH A POLYPHOSPHATE INCORPORATED INTO THE LIQUID INTRODUCED INTO THE BED, WHEREBY THE IRON IS NOT ACCUMULATED IN THE BED AND IS INSTEAD DISCHARGED WITH THE WASTE LIQUOR, OR ELSE ALTERNATIVELY IT IS ALLOWED TO ACCUMULATE IN THE BED TO BE PERIODICALLY EXTRACTED THEREFROM BY PASSING A POLYPHOSPHATE-CONTAINING LIQUID SUCH AS POLYPHOSPHORIC ACID THROUGH THE BED.
Inventors
- 👤 Bernhard D Brast
- 👤 Raymond E Ory
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
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