1. Introduction. The flotation separation of scheelite from other calcium-containing minerals such as fluorite and calcite, is problematic, due to their similar solubility and the same active Ca 2+ site for interaction with anionic collectors (Rai et al., 2011).Thus, using a single type of collector is unlikely to achieve selective flotation of scheelite from fluorite and calcite.
flotation fluorite selective
Selective flotation of fluorite from barite using. fluorite flotation direction:In this paper trisodium phosphate TSP was utilized for the flotation separation of fluorite from barite Microflotation results showed that good floatability of both fluorite and barite was obtained at around pH 85 using sodium oleate NaOL as a collector.
functional groups for use in flotation of calcium containing minerals. For this purpose, a series of dicarboxylate-based surfactants with varying spacing between the carboxylate groups were synthesized. The adsorption behavi or of these new reagents on pure apatite, calcite and fluorite
calcite has not been reported in the literature, and an efficient depressant for the selective flotation separation of these three minerals is still unavailable. The objective of this study is to investigate the effects of valonea extract and sodium fluosilicate on the flotation separation of fluorite…
Apr 20, 2017· The Pb–BHA complexes are found to be selective for the separation of scheelite and calcium minerals with little use of depressants and enable the synchronous flotation of scheelite and wolframite. Hence, a novel flotation process was developed for the recovery of tungsten minerals.
Investigation of the depressants involved in the selective flotation of scheelite from apatite, fluorite, and calcium silicates: Focus on the sodium silicate/sodium carbonate system
These two depressants allowed selective separation of the three minerals through sequential flotation. The flotation of mixed minerals showed that 94% of the calcite was successfully depressed by the valonea extract, and 95% recovery of the fluorite was achieved in the subsequent flotation with sodium fluosilicate depressing barite.
Separating fluorite from quartz and calcite by forth flotation can be both in weak-acidized (pH 6.0) condition and weak alkali (pH 9.0) condition. The experiment results have shown that ZnSO4 can decrease the depression that water glass works on the fluorite, and acidized water glass has a selective inhibition on the silicate minerals. The close flowsheet protocolled in the experiment can ...
The micro-flotation tests presented that TSP exhibited selective depression for barite in fluorite flotation, which achieves the flotation separation of fluorite from barite at approximately pH 8.5 when using NaOl as a collector.
Fluorite (CaF2), as an important strategic mineral source, is usually separated from calcite by the common froth flotation method, but this separation is still not selective enough.
The aim of our study is, in a first step, a systematic flotation behaviour of barite and associated minerals, during which various collec-tors, combined with modifiers have been tested. Then, an artificial mixtures flotation was carried out and all the optimal conditions of flotation were applied to barite and fluorite …
Fluorite is an important strategic mineral. In general, fluorite ores will contain a certain amount of calcite gangue mineral. Thus, they need to be separated from each other. For an economic separation, a reverse flotation process is used to float calcite gangue from fluorite. However, little information on the separation is available. In this study, a novel reagent schedule using citric acid ...
Improvement Eﬀect of FeSO4·7H2O on Flotation Separation of Scheelite from Fluorite Yuan Hu,† Yuqing Huang,‡ Rongdong Deng,*,‡,§ Lin Ma,‡ and Wanzhong Yin‡,§ †College of Chemical Engineering and ‡School of Zijin Mining, Fuzhou University, Fuzhou 350108, China §Fuzhou University-Zijin Mining Group Joint Research Center for Comprehensive Utilization of Mineral Resources, Fuzhou
Control of the potential determining ions followed by selective flotation with long chain amines, sulfate or sulfonates. The use of stereo-specific collectors; those whose parking area closely matches the mineral surface of one mineral but not another. Flotation rate differences. Selective depression. Selective …
Mar 30, 2018· Fluorite, a chief source of fluorine in the nature, usually coexists with calcite mineral in ore deposits. Worldwide, flotation techniques with a selective collector and/or a selective depressant are commonly preferred for the separation of fluorite from calcite.
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