Selective flotation of ilmenite from olivine using the …
The selective flotation of ilmenite from olivine can be better achieved using an AWG as depressant rather than WG in the artificially mixed minerals flotation experiments. Batch flotation test results indicate that, compared with the depressant WG, the depressant AWG not only increases the recovery and grade of the Ti concentrates by …
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A review of mineral processing of ilmenite by flotation
At present, industrial flotation process for ilmenite concentrate production is controlled within acidic pH region from about 6 to 2.5 in the roughing and cleaning stages, and this requires the collector to have a good capture ability even under strongly acidic conditions (Zhai et al., 2017). In Chinese deposits, titanaugite is the main gangue ...
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Effect of acid surface pretreatment on the floatability …
The cell flotation experiments show that before surface dissolution, an optimal concentrate with 21.2% TiO2 and 78.3% recovery is achieved using 1000 g/t sodium oleate, 100 g/t Pb(NO3)2 (activator ...
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Static compression and olivine flotation in ultrabasic silicate …
Olivine flotation provides an important constraint upon Earth evolution models that include extensive melting during early differentiation. It also provides a mechanism for …
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How to Recover Chromite
The olivine grains were partially weathered to a mineral, probably serpentine, that was depleted in iron and magnesium and probably hydrated. The chromite content varied in the different size fractions and is listed in table 4. ... Flotation tests to concentrate chromite in the slimes from the pilot plant gravity circuit were successful on …
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Gangue Entrainment in Olivine Flotation: Effect of MIBC …
Objective: This flotation study was conducted in natural pH condition with Na-oleate as collector to clarify the effect of frother (MIBC) dosage on the LOI value of olivine concentrate. Methods: Characterization of ore sample for this study was made by XRD, XRF and petrographic analyses.
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Influence of aluminum–sodium silicate on olivine flotation …
The results of the artificially mixed minerals flotation experiment demonstrate that the concentrate of TiO2 grade increases from 16.92% to 30.19% at pH 5.4, which represents the appropriate ...
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Flotation of Chromite Ore
Olivine is the predominant silicate mineral in the Mouat ore. Petrographic examination of the pH 2.0 flotation products showed olivine to be present in the concentrate while serpentine remained in the tailings. To increase the selectivity of Mouat ore to amine flotation of chromite, a selective olivine depressant must be found.
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Static compression and olivine flotation in ultrabasic silicate …
Olivine flotation provides an important constraint upon Earth evolution models that include extensive melting during early differentiation. It also provides a mechanism for concentrating high Mg/Si olivine in the upper mantle without unduly perturbing other geochemical parameters. A full evaluation of the physical and geochemical consequences ...
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Recover Chromite by Flotation
The olivine ranged in color from green to yellowish-brown. The chromite is liberated essentially in the minus 100-mesh fraction; however, a small amount of chromite remains locked in the minus 325-mesh fraction. ... Chemical analysis of the chromite mineral prompted investigation of using flotation to produce a concentrate containing …
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Effect of acid surface dissolution pretreatment on …
The cell flotation experiments show that before surface dissolution, an optimal concentrate with 21.2% TiO 2 and 78.3% recovery is achieved using 1000 g/t …
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Gangue Entrainment in Olivine Flotation: Effect of MIBC …
Olivine is an important industrial raw material especially for metallurgical applications like foundry sand, refractory, slag conditioning, etc. Loss On Ignition (LOI) value (>1%) is the main specification of olivine ore/concentrate for those areas together with the chemical specifications. This flotation study was conducted in natural pH condition with Na-oleate …
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olivine flotation concentrate
olivine flotation concentrate . Selective flotation of ilmenite from olivine using the . The microflotation results indicate that the AWG at a molar ratio 1:3 of oxalic acid to water glass (WG) exhibits the maximum selective depression on olivine. Influence of aluminum–sodium silicate on olivine flotation,As magnesium is a major constituent ...
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OneMine | RI 8502 Amine Flotation of Chromite Ores From …
Rougher flotation of ore containing abundant olivine upgraded the chromite from 23.4 to 29.6 percent Cr203 at a recovery of 89.4 percent. ... Flotation of a gravity concentrate containing 40.9 percent Cr203 and 4.4 percent SiO2 recovered 90 percent of the chromite in cleaner products containing 44.9 percent Cr203 and 0.63 percent Si02. The ...
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Gangue Entrainment in Olivine Flotation: Effect of MIBC
Olivine concentrate obeying the specifications of metallurgical applications could be obtained at suitable MIBC dosage and flotation time. Discover the world's research 20+ million members
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Minor and trace elements in olivines as probes into early …
The trace element composition of olivine is a rapidly growing research area that has several applications of great potential. Mantle olivines can be distinguished from volcanic olivines by lower concentrations of Ca (<700 ppm), Ti (<70 ppm), and often Cr.The melting of pyroxenites derived from recycled ocean crust can be recognized in volcanic …
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Influence of aluminum–sodium silicate on olivine …
Fig. 3 shows the relationship between the concentration of sodium silicate and the olivine recovery. The flotation recoveries of olivine are approximately 80% …
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Effect of acid surface dissolution pretreatment on the …
The influence of acid surface dissolution as a pretreatment method on the improvement of ilmenite selective flotation from olivine-pyroxene was studied by carrying out the flotation experiments in micro and laboratory (flotation cell) scales. The microflotation experiments show that after surface dissolution, the flotation recovery of ilmenite improves from …
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(PDF) Gold recovery from flotation concentrate …
The method for the recovery of gold from its flotation concentrate using acidic thiourea leaching followed by adsorption on an organosilicon polymer (PSTM-3C) was discussed in the present study.
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olivine flotation concentrate
Because the collectors may react with the Fe and Mg on the olivine surface and improve the flotation recovery of olivine, it is difficult to achieve the effective separation of ilmenite and olivine. The studies on the beneficiation of onkilonite ore demonstrated that only a 40% grade of titanium concentrate and 36% of the recovery were obtained ...
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Selective flotation of ilmenite from olivine using the …
The minimum flotation recovery of olivine reached 2.46% when the AWG dosage was 2.5 × 10 − 4 M. The maximum recovery D-value between ilmenite and …
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Flotation of chromite and serpentine | Semantic Scholar
Improving the Quality of Ferruginous Chromite Concentrates Via Physical Separation Methods. The low chromium-to-iron ratio of chromite ores is an important issue in some chromite deposits. The value of the chromite ore is indeed dictated in the market by its iron, as well as its chromium….
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Mineralogical characterisation of naturally floatable gangue …
During the recovery of the valuable platinum group minerals and base metal sulphides in the Merensky Reef ore by flotation, a certain amount of naturally floatable gangue (NFG) is recovered, which dilutes the concentrate.Although talc is the only silicate mineral well known for it naturally floatable properties, the proportion of NFG recovered …
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Reagent types and action mechanisms in ilmenite …
Combining the lead ion (Pb2+) and the benzyl hydroxamic acid (BHA) into a Pb—BHA complex has a marked effect on ilmenite flotation, which puts forward a new …
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Flotation
Flotation has been used by mineral and chemical engineers for the separation and concentration of aqueous suspensions or solutions of a variety of minerals, coal, …
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Flotation behavior and mechanism of ilmenite using
In laboratory scale flotation experiments, when quartz is the main gangue mineral, the TiO2 grade and recovery of flotation concentrate improved from 27.1% to 28.3% and 85.3% to 92.7% ...
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Reagent types and action mechanisms in ilmenite flotation: …
For the activators on ilmenite flotation, most are metal ions but typically lead ions. ... Effect of acid surface dissolution pretreatment on the selective flotation of ilmenite from olivine and pyroxene, Int. J. Miner. Process., 167(2017), p. 49. ... Trial research of flotation for crude titaniferous concentrate, Hebei Metall., 2003, No. 1, p. 18.
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Beneficiation of olivine ore by Na-oleate flotation
Objective This flotation study was conducted in natural pH condition with Na-oleate as collector to clarify the effect of frother (MIBC) dosage on the LOI value of olivine concentrate.
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Platinum
The tenor of a Stillwater rougher concentrate is compared in table 7 with values reported for a flotation cleaner concentrate produced at a Merensky Reef concentrator, Republic of South Africa. The considerably higher palladium-to-platinum ratio of the Stillwater concentrate compared to the Merensky concentrate was the result of …
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