Mechanism of sodium sulfate in promoting selective …
Na 2 O reacted with silicate to form Na 3 MgAl (SiO 4) 2, promoting metallic particles grow. A high nickel grade ferronickel was produced from laterite ore using the …
The effect of sodium sulphate on the hydrogen reduction …
Fe–S solid solution could promote the ferronickel particles aggregation. A series of nickel laterite ores with different calculated amounts of anhydrous sodium sulphate were …
Beneficiation of nickeliferous laterite by reduction roasting …
Li et al. (2012) tested the beneficiation of nickel laterite ore with sodium sulphate (Na2SO4) additions using a two-step process involving reduction roasting, then magnetic separation. The as ...
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 …
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 ...
US2689041A
beneficiation magnesium sulfate Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Lifetime Application number US277293A Inventor William B Dancy
Beneficiation of Denizli
Request PDF | On Oct 6, 2017, U. Malayoğlu and others published Beneficiation of Denizli - Acıgöl sodium sulphate ore by exploiting its structural properties | Find, read and cite all the ...
Use of Iron Ore Tailing as Raw Material for Two Products: Sodium …
In this work, iron ore tailing (IOT) was used for the production of two different materials: sodium silicate and geopolymers. Initially, reactions of IOT with NaOH were carried out by hydrothermal reaction in autoclave at 200 °C (1:1.5 and 1:2.5 SiO 2:NaOH molar ratio) and reaction times of 4 and 8 h.X-ray fluorescence by dispersive energy (XRF), X-ray diffraction …
Beneficiation of nickeliferous laterite by reduction roasting …
Ni beneficiation of laterite ore by using direct reduction process is proposed. Sodium sulfate is capable of intensifying the reduction roasting of laterite. Average particle size of ferronickel grows up to 50 μm when reduced with Na 2 SO 4. Selective enrichment of Ni can be realized by suppressing the metallization of Fe. New-born troilite (FeS) facilitates the …
Application and Mechanism of Anionic Collector Sodium Dodecyl Sulfate
Phosphate ore is a valuable strategic resource. Most phosphate ore in China is collophane. Utilization of mid-low grade collophane is necessary to maintain social sustainable development. The gravity-flotation combination separation process can be utilized to separate mid-low grade collophane, but the process consumes a large quantity of acid in the reverse stage. Sodium …
Top 10 Chemicals for Mining Industry
Sodium Sulphate Anhydrous; Sodium laureth sulfate (S.L.E.S.) 70% ; Sulphonic Acid (Labsa 96%) Soda Ash; Triethanolamine; Zinc sulfate; Hydrogen Peroxide; ... Essential in the beneficiation of various ores. Ore Concentration: Helps concentrate valuable minerals for further processing. 5. Flocculants and Coagulants
The effect of sodium sulphate on the hydrogen reduction …
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 ...
Xsc HunanSincerechemicals' Post
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.
Flotation of Lead-Zinc Sulfide Ore
The beneficiation process of lead-zinc ore is mainly processed by flotation, and at present, most of the lead and zinc are obtained by sulfide separation. ... which is strongly activated by copper ions, only sulfite has a …
Mechanism of sodium sulfate in promoting selective reduction of nickel
A high nickel grade ferronickel was produced from laterite ore using the selective reduction-wet magnetic separation process, with the addition of sodium sulfate (Na2SO4).
Beneficiation of Denizli
Request PDF | On Oct 6, 2017, U Malayoğlu and others published Beneficiation of Denizli - Acıgöl sodium sulphate ore by exploiting its structural properties | Find, read and cite all the ...
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 ...
Thermal Beneficiation of Sulfide Ore Materials
Including sulfide ore beneficiation tailings in sulfide ore processing is mainly ascribed to their use in the construction industry. In addition to dump products, various other wastes are formed during processing of sulfide ore materials, and these wastes are sent into circulation for pyrometallurgical processing. This study proposes a device for thermal …
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 ...
Sodium-Salt-Assisted Reductive Roasting for Separation and …
The dual effect of sodium-salt-assisted reductive roasting for iron recovery and chromium enrichment from lateritic iron ore was investigated. Iron oxides were reduced to metallic iron through reductive roasting, while Al- and Si-bearing components were transformed to sodium aluminosilicate and/or diaoyudaoite. Thus, direct reduced iron (DRI) was recovered by …
Relationship between process mineralogical characterization …
Process mineralogy of low-grade laterite nickel ore in Indonesia was systematically characterized and the beneficiation process of mineral components such as limonite, serpentine and chromite was studied on the basis of process mineralogy. The results show that the low-grade laterite nickel ore is a typical weathering sedimentary metamorphic oxidized ore, with …
The effect of sodium sulphate on the hydrogen reduction …
Thus, in this study, the author conducted hydrogen reduction of low-grade nickel laterite ore with the addition of sodium sulphate followed by magnetic separation to determine the effects of temperature, time, partial pressure of H 2 and content of sodium sulphate on the nickel reduction process. Moreover, the effects of different sodium ...
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 ...
Niobium-Tantalum Ore Beneficiation
Tantalum-niobium ore beneficiation technology. ... sodium alkyl sulfate and sodium isooctyl phosphate detailed study of niobium-iron ore – tantalite floatability. Tests have shown that: when using fatty acids as trapping agents, the trapping ability of saturated hydrocarbon groups is worse than unsaturated ones. Flotation of niobium iron ore ...
Process and Mechanism of Sulfate Roasting-Water …
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 sulfate and 20% calcium oxide were added to the lithium mica ore, calcinated at 900 ℃ for 1 h, and the calcine was leached at ...
Effects of Na2SO4 on iron and nickel reduction in a high-iron …
This study investigates the reactions of Na2SO4 and its effects on iron and nickel reduction in the roasting of a high-iron and low-nickel laterite ore through gas composition, X-ray diffraction, and scanning electron microscope analyses. Results showed that a reduction reaction of Na2SO4 to SO2 was performed with roasting up to 600°C. However, no clear influence on …
Direct Reduction of Limonitic Laterite Nickel Ore with Variation …
The increasing demand for stainless steel and the scarcity of sulfide nickel ore affect the increase of laterite nickel ore processing. One of the processes that has been proven can be applied to process laterite nickel ore is direct reduction. ... Beneficiation of nickeliferous laterite by reduction roasting in the presence of sodium sulfate ...
Asia-Pacific Journal of Chemical Engineering
The distinctive oolitic structure within the ore is regarded as the primary factor causing the difficulty in the beneficiation of oolitic hematite ore. The objective of this study is to devise an effective approach to tackle the issue of beneficiation of oolitic hematite ore, thereby facilitating the utilization of oolitic hematite ore, which ...
Tin Ore Beneficiation Methods And Some Practice
The development of tin ore beneficiation. ... When used in combination with sodium alkyl sulfate and styrene phosphonic acid, it can expand the flotation area, which is beneficial to the floating of cassiterite. It can also be used as an inhibitor of gangue minerals to improve the concentrate grade. Carboxymethylcellulose is also a commonly ...
Nickel Laterite Beneficiation and Potential for
The reduction behaviours of a saprolite laterite ore in the presence of sodium sulphate were investigated, with an emphasis on thermodynamic analysis, selective reduction …