In the case of reverse iron ore flotation the main part of the amines, which were used, remains in the float product. They are absorbed on the surface of the floated silica particles or are dissolved
ادامه مطلب
Flotation experiments under pH 10.5 were performed using quartz/hematite artificial mixtures. The influence of particle size and monoamine unit consumption on the kinetic parameter was analyzed, in...
ادامه مطلب
Semantic Scholar extracted view of "Reverse froth flotation of magnesite ore by using (12-4-12) cationic gemini surfactant" by I. Brezáni et al.
ادامه مطلب
This study evaluated the performance of a new collector amide-amine compared with a traditional etheramine in conventional reverse cationic flotation …
ادامه مطلب
It covers different types of collecting agents used in reverse iron ore flotation, the surface characteristics of minerals commonly present in iron ores (e.g., iron oxides, quartz, …
ادامه مطلب
The iron ore has low quality to be directly used in steel production. Reverse cation flotation is one of the most used processes in the separation of quartz and particles smaller than 0.150 mm, and, therefore, can be used in the production of pellet feed.
ادامه مطلب
Reverse cationic flotation is an important method for iron ore flotation. In this process, it is particularly important to find efficient, environmentally friendly and inexpensive hematite depressants. Hydrolyzed polyacrylamide (HPAM), an inexpensive and environmentally friendly synthetic polymer organic reagent, was studied for the first time …
ادامه مطلب
Highlights • A two-stage iron ore flotation process was developed. • Amidoamine proved an effective collector for silicate. • Selective flotation of quartz and …
ادامه مطلب
In the conventional reverse flotation of apatite, phosphoric acid is the most widely used depressant in the reverse flotation of phosphate ore to depress the valuable mineral apatite (Sis and Chander, 2003). More importantly, it has been reported that crystallinity has a strong relationship with floatability; however, changes in the ...
ادامه مطلب
Use of lecithin as an environmentally friendly and economical collector in phosphate ore flotation. • Amphoteric collector frother for reverse flotation of phosphate ore. • Froth flotation is an innovative process to enrich the phosphates. • Reverse flotation is effective type applied to remove gangues from phosphate ores.
ادامه مطلب
Overall, the direct application of reverse flotation to the mixed ore to remove the carbonate gangue has proven ineffective due to very low recoveries for Cu-Co in the cell-product.
ادامه مطلب
The use of column flotation was considered for the "reverse flotation" of iron ore, where the gangue (quartz) was recovered in the froth product. This use of the froth for carrying the gangue mineral rather than carrying the valuable concentrate significantly changes the operational requirements of the column. The objective of this work was to …
ادامه مطلب
Reverse flotation is divided into anionic reverse flotation and cationic reverse flotation (Liu et al., 2016b, Ma et al., 2011). Anion reverse flotation has strong adaptability and good selectivity for ore, but it has some shortcomings such as a complex reagent system, high reagent cost, and temperature sensitivity (Rath et al., 2014).
ادامه مطلب
The possibility of recovering residual amine present in the water phase of tailings pulps of the reverse cationic flotation of iron ore was investigated. The samples collected in the tailings from mechanical and tank cells and also from flotation columns were kept under rest to promote the separation between the water and the solid particles.
ادامه مطلب
This study showed that RSM-D-optimal could efficiently be applied for modeling of iron ore reverse flotation and it is very economical to obtain maximum amount of information in less interval of time with few numbers of experiments. Successful upgradation of low-grade iron ore fines through reverse flotation route with proposed …
ادامه مطلب
The reverse flotation of the iron ore with etheramine collector is significantly impacted when the iron-bearing silicates and the kaolinite are present in the silicates …
ادامه مطلب
Highlights • The main routes of iron ore flotation were reviewed. • Reverse cationic flotation is the most used flotation method of iron ore beneficiation. • Ether …
ادامه مطلب
This paper reviews the industrial practices and fundamental research surrounding iron ore flotation. The advantages and disadvantages of direct flotation, cationic reverse flotation, and anionic reverse flotation are reviewed. A novel stepped flotation technique is discussed for the treatment of carbonate-rich iron ores.
ادامه مطلب
In this work the reverse flotation as beneficiation process for high-purity silica valorization from Draissa quartz deposits (Algeria) is studied as a potential raw material for photovoltaic silicon production and starting charge for crystal growth material for a large wide of applications such laser and scintillation. The samples are investigated …
ادامه مطلب
Reverse cationic flotation is an important method for iron ore flotation. In this process, it is particularly important to find efficient, environmentally friendly and inexpensive hematite depressants.
ادامه مطلب
Removal of quartz from iron ore was accomplished industrially via an anionic reverse flotation technique. However, in that kind of flotation, the interaction of the flotation reagents with the ...
ادامه مطلب
In view of the disadvantages of depressing calcite and floating fluorite in the traditional fluorite flotation, it may be a promising alternative to remove calcite from fluorite ore in a reverse way, especially for complex and unmanageable fluorite ores containing high-grade calcite gangue mineral [4,12].
ادامه مطلب
Further milling of the ore to <25 μm resulted in a higher magnetic-rich product after magnetic separation. Reverse flotation tests were conducted on the agitated magnetic concentrate feed, and the result shows a significant upgrade of Fe compared to that obtained from the non-agitated feed.
ادامه مطلب
Despite the difficulties in pelletizing specularite-type refractory iron ores, the utilization of these resources is indispensable for the steel industry due to the increasing need for iron. This study investigated Fe recovery from a refractory iron ore using gravity separation, reverse flotation, and two-stage magnetic separation.
ادامه مطلب
In order to reveal the relationship between flotation behaviors of collectors and their structures, quantitative structure–activity relationship (QSAR) study about separation efficiency of quartz from hematite using amine collectors was performed. The genetic function approximation (GFA) algorithm was applied to generate the correlation …
ادامه مطلب
Transforming iron ore processing – Simplifying the comminution and replacing reverse flotation with magnetic and gravity separation
ادامه مطلب
2. Flotation routes for iron ore The flotation of iron ore was first investigated in America starting in 1931 (Iwasaki 1983, 1999; Uwadiale 1992).
ادامه مطلب
Reverse flotation is an effective method for separating apatite from gangue minerals (such as dolomite) in collophanite ore. However, collophanite ore flotation using traditional fatty acid collectors is uneconomical because …
ادامه مطلب
Removal of quartz from iron ore was accomplished industrially via an anionic reverse flotation technique. However, in that kind of flotation, the interaction of the flotation reagents with the ...
ادامه مطلب
Out of several reagents used in iron ore reverse flotation, depressants play a crucial role in selectively making the iron oxides hydrophilic and prohibiting them from reporting to the gangue-rich froth phase. Starch is widely used as …
ادامه مطلب
An iron reverse flotation digital twin dosing system was developed. ... This study proposed an intelligent production system based on digital twin technology to solve the flotation dosing problem in iron ore dressing production. The digital twin model framework of flotation dosing system composed of data layer, model layer, control layer …
ادامه مطلب
In this study, reverse flotation was applied to recover phosphate from a very low grade (5.01% of P2O5) sedimentary ore. Sodium silicate, starch, tann…
ادامه مطلب
This work aimed to upgrade a low-grade sedimentary phosphate ore through attrition scrubbing/desliming and an anionic/cationic reverse flotation technique. The mineralogical and chemical examinatio...
ادامه مطلب