A Robust Recovery of Ni From Laterite Ore Promoted by Sodium …
Li et al. (2012) studied the beneficiation of nickeliferous laterite by reduction roasting in the presence of sodium sulfate and noticed when the laterite was mixed with sodium sulfate and then reduced at 1,100°C for 60 min, the Ni grade of the concentrate and recovery were increased to 9.48 and 83.01%, respectively.
Aspects of Spodumene Lithium Extraction Techniques
Calcination is also used to improve spodumene beneficiation since the final product, ... Froth flotation is the most often used method for spodumene and other ore beneficiation. ... purification, evaporation, Li precipitation, and anhydrous sodium sulfate concentration and crystallization. In this process, pulverized ...
How to Process Copper Ore: Beneficiation Methods and Equipment
Semi-preferential bulk-separation flotation of copper sulfide ore beneficiation ... Process flow: The dosage of sodium sulfide can reach 1~2kg/t during vulcanization. Because the film produced by vulcanization is not stable and is easy to fall off after vigorous stirring, and sodium sulfide itself is easily oxidized, sodium sulfide should be ...
PAPER OPEN ACCESS Effect of reduction temperature …
The results showed that the nickel grade was increased with the increasing of reduction temperature for nickel ore with sodium sulfate additive. Nevertheless, it was relatively constant …
A Robust Recovery of Ni From Laterite Ore …
Lu et al. (2013) investigated the effect of sodium sulfate on the hydrogen reduction process of nickel laterite ore. In conclusion, the alkali metal additives can be used to improve the reactivity of reducing agents, and to …
Application and Mechanism of Anionic Collector Sodium Dodecyl Sulfate
Sodium dodecyl sulfate (SDS) was used as a dolomite collector in this study to reduce the acid consumption of collophane flotation. SDS effectively removed dolomite from the gravity concentrate ...
The effect of sodium sulphate on the hydrogen reduction …
Fig. 12 presents the results from the IM ore (immersed in sodium sulphate solution): this figure shows that there is a similar trend as in Fig. 11, ... In this work, the author also investigated the effects of different methods of adding sodium sulphate on nickel beneficiation.
Beneficiation of Nickel from Ultramafic Ores: Using Sodium …
Beneficiation Tailings Treatment; Adheres to conveyors, idlers, screens: ... Along with sodium dodecyl sulfate (SDS), is chemisorbed onto the mineral surfaces; strength of adsorption is celescite > calcite > fluorite for SDS and fluorite > calcite > celescite for sodium citrate. ... Pentlandite-Serpentine (Yanbian Ore) Addition of Sodium ...
A brief analysis of the role of copper sulfate in ore beneficiation …
A brief analysis of the role of copper sulfate in ore beneficiation and flotation. Copper sulfate, which appears as blue or blue-green crystals, is a widely used activator in sulfide ore flotation. ... When sodium cyanide inhibits sphalerite, stable zinc cyanide ions are formed on the surface of sphalerite, and copper cyanide ions are more ...
Beneficiation of antimony oxide ore: A review
Antimony oxide ore beneficiation has become one of the world's largest mineral processing conundrums. In recent years, many experimental studies dealing with antimony oxide ore have been carried out, resulting in new technical achievements. ... especially when sodium lauryl sulfate was used as the flotation collector. When the pH of the pulp ...
Application of various methods of benefication to low-grade hematite ore
Study examined the influence of adding sodium sulfate and tetraborate on the beneficiation of hematite oolitic ores. The scheme involved grinding the ore to less than 74 microns, briquetting with different ratios of Na 2 SO 4 and Na 2 B 4 O 7, reducing roasting at temperatures from 950 to 1100 °C using coal as a reducing agent, re-grinding ...
Chapter 38. Beneficiation of Mica-Containing Ore
Densities of aqueous solutions of lithium sulfate (Li2SO4) and lithium trifluoromethanesulfonate (LiCF3SO3) at solute molalities ranging from 0.05 to 2.7 or 9.6 mol·kg–1, respectively, have ...
Feasibility of co-reduction roasting of a saprolitic laterite ore …
Large scale utilization is still an urgent problem for waste red mud with a high content of alkaline metal component in the future. Laterite ores especially the saprolitic laterite ore are one refractory nickel resource, the nickel and iron of which can be effectively recovered by direct reduction and magnetic separation. Alkaline metal salts were usually added to enhance …
Can sodium sulfate be used as an additive for the reduction roasting …
A process of coal-based direct reduction roasting followed by magnetic separation was used to produce direct reduction iron (DRI) from high-phosphorus oolitic iron ore.The effect of sodium sulfate, which was used as an additive in the roasting process, was investigated.The addition of sodium sulfate increased the iron content and reduced the phosphorus content of …
Effect of Sodium Sulfate on Preparation of Ferronickel …
studied the effect of sodium sulfate on the hydrogen reduc-tion process of nickel laterite ore. The maximum nickel content of 5.6 mass% and nickel recovery of 83.6% could be obtained from the reduction of nickel laterite ore at 800°C for 220 min in the presence of 20.0 mass% sodium sulfate at a total gas flow rate of 5.6×10−5 m3/s (V H2:V ...
Mingjun Rao ()
Beneficiation of nickeliferous laterite by reduction roasting in the presence of sodium sulfate. G Li, T Shi, M Rao, T Jiang, Y Zhang. Minerals Engineering 32, 19-26, 2012. 238: ... Reductive roasting of nickel laterite ore with sodium sulphate for Fe-Ni production. Part II: Phase transformation and grain growth. M Rao, G Li, X Zhang, J Luo, Z ...
Mining and Beneficiation of Phosphate Ore | IntechOpen
The first commercial production of phosphate rock began in England in 1847. A wide variety of techniques and equipment is used to mine and process phosphate rocks in order to beneficiate low-grade ores and remove impurities. The eighth chapter of this book deals with mining and beneficiation of phosphate ore. The principle and operating conditions of important …
The effect of sodium sulphate on the hydrogen reduction …
In this research, the beneficiation process of limonite and saprolite ore will be selectively reduced using the addition of Na2SO4 additives, graphite as reductant, variation of …
Application and Mechanism of Anionic Collector Sodium Dodecyl Sulfate
DOI: 10.3390/MIN7020029 Corpus ID: 9166968; Application and Mechanism of Anionic Collector Sodium Dodecyl Sulfate (SDS) in Phosphate Beneficiation @article{Sun2017ApplicationAM, title={Application and Mechanism of Anionic Collector Sodium Dodecyl Sulfate (SDS) in Phosphate Beneficiation}, author={Kun Sun and Tao Liu and Yi-min Zhang and Xin Liu and Bo …
Effect of Sodium Sulfate on Preparation of Ferronickel …
The experimental results of carboth- ermal reduction revealed that sodium sulfate was capable of enhancing the reduction of nickel laterite, as well as promoting the aggregation and growth of …
Nickel Laterite Beneficiation and Potential for
Selective reduction process and magnetic separation of nickel lateritic ore were conducted through the two-stage thermal mechanism with the addition of sodium sulfate and sodium chloride as the ...
Optimal conditions for selective reduction process of …
In this present work, the reduction process of low-grade nickel ore was carried out by using anthracite containing high sulfur as reductant, which had higher fix carbon than …
Lithium extraction from hard rock lithium ores (spodumene, …
Substituting cheap sodium sulfate for potassium sulfate, and calcining with calcium sulfate and lepidolite (0.15:0.45:1) at 900°C, the lithium recovery rate can also reach more than 90% (Vieceli N et al., 2016), but the leaching rate of lepidolite was 84% when calcining only with calcium sulfate at 1050°C (Siame E and Pascoe RD, 2011).
Can sodium sulfate be used as an additive for the reduction …
The iron ore, coal, and sodium sulfate and an appropriate amount of water (8% to 12%) were fully mixed and pressed to briquettes in a steel die (30 ... (Fig. 5), which can be explained that FeS was oxidized during beneficiation and drying processes since it was not stable at room temperature. This S-bearing material occurred at several microns ...
Vanadium Extraction Mechanism in the Sodium Sulfate …
A V concentrate was achieved by a beneficiation and concentration process, including crushing ... Fe 2 O 3 and titanomagnetite (Fe 2.5 Ti 0.5 O 4) originating from the oxidation of the VTM ore and sodium iron silicon oxide (Na 0.95 (Fe 0.95 Si ... Environmental impact of sodium sulfate decomposition in silicate glass manufacturing. Alfred ...
Ore Beneficiation
Iron ore beneficiation can be brought about through three approaches, namely, selective dissolution, microbially induced flotation, and selective flocculation–dispersion. ... possible to selectively float quartz from hematite with dodecylammonium chloride or float hematite from quartz with sodium dodecyl sulfate. This is illustrated in Figure ...
Effects of Na2SO4 on iron and nickel reduction in a high-iron …
Additives in Selective Reduction of Lateritic Nickel Ores: Sodium Sulfate, Sodium Carbonate, and Sodium Chloride
Process and Mechanism of Sulfate Roasting …
The results show that roasting temperature has a great influence on lithium leaching rate, and the leaching effect of lithium is better in the appropriate roasting temperature range. 40% potassium sulfate, 20% sodium …
Synchronous Upgrading Iron and Phosphorus …
Li et al. reported the effect of sodium sulfate on reduction roasting and P removal from high-phosphorus oolitic hematite ore.The results showed that a magnetic concentrate with total iron grade of 92.7% and phosphorus content …
Reductive roasting of nickel laterite ore with sodium sulfate …
In Part I, reduction/sulfidation behaviors of a saprolitic laterite ore in the presence of sodium sulfate were investigated, with an emphasis on thermodynamic analysis, selective reduction/sulfidation ratios and kinetics. To separate the interactions between Ni and Fe, chemical titration analysis was adopted to determine the contents of various ...