Add time:08/12/2019         Source:sciencedirect.com

The flotation of niobite, fersmite, and ilmenorutile was studied using 3 collectors with various concentration and pulp pH. The collecting property of different representative collectors was investigated. Experimental results show that diphosphonic acid is an effective collector for valuable niobium-containing minerals. A flotation recovery of 90.87%–91.7% is obtained with 75 mg/L diphosphonic acid at pH 2–4. The chemical adsorption of diphosphonic acid on these 3 minerals' surface might lead to the high recovery efficiency of the minerals, which is proved by IR and X-ray photoelectron spectroscopy spectra.

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