As phosphorus easily causes cold brittleness in steel (Cha et al., 2015), the efficient separation of iron and phosphorus has become the focus of HPOIO research.To realize its utilization, researchers have conducted extensive research on HPOIO, mainly including beneficiation, hydrometallurgy, and pyrometallurgy processes (Bao et al., 2020, Cheng et al., …
The co-roasting of red mud with coal gangue for the separation of iron and aluminum minerals was studied. The current research demonstrated that the hematite and goethite in the red mud can be reduced to magnetite with carbon as the reductant, which is present in coal gangue. The magnetism gap between iron minerals and aluminum minerals …
Removal of iron is essential for recovery of aluminum. Herein, this work reported an approach for efficient removal of iron from acid leaching liquor of high-iron bauxite. The extraction system of …
The final magnetic separation was unable to effectively separate iron aluminum minerals, and poor iron recovery indicators were obtained. Besides, the yield of Al-bearing products and the recovery rate of Al 2 O 3 shown an upward trend, while the change in Al 2 O 3 content was relatively small, as shown in Fig. 7 (b) .
In this study, a novel method using supergravity separation with manganese addition to remove iron for aluminum recovery from scrap aluminum alloy was explored. The effects of separating temperature (T), Mn/Fe mass ratio, and gravity coefficient (G) on iron separation efficiency were evaluated. Increasing the separating temperature improved the ...
The removal of trivalent iron and aluminum was studied from synthetic Li-ion battery leach solution by phosphate and hydroxide precipitation (pH 2.5–4.25, t = 3 h, T = 60 °C).
A rapid method was developed for the solvent extraction separation of iron(III) and aluminium(III) from other elements with Cyanex 302 in chloroform as the diluent. Iron(III) was quantitatively extracted at pH 2.0-2.5 with 5 x 10(-3) M Cyanex 302 in chloroform whereas the extraction of aluminium(III …
Removal of iron, aluminium, manganese and copper from leach solutions of lithium-ion battery waste using ion exchange. ... Hydrometallurgical separation of aluminium, cobalt, copper and lithium from spent Li-ion batteries. J. Power Sources, 187 (2009), pp. 238-246, 10.1016/j.jpowsour.2008.10.077.
Metals play an integral role in modern society. In 2017 alone, the apparent U.S. consumption of iron and steel reached 100 million metric tons (USGS, 2018).Aluminum consumption likewise reached almost six million metric tons, with copper following at 1.85 million metric tons (USGS, 2018).Unfortunately, the mining and processing of such metals can have …
In summary, aluminum and iron can be simultaneously removed from REE-sulfate solution by solvent extraction with saponified naphthenic acid in one extraction stage only from diluted solutions. However, in comparison to …
Separation of impurities aluminum and iron during pressure acid leaching of vanadium from stone coal. J Clean Prod, 166 (2017), pp. 1265-1273. View PDF View article View in Scopus Google Scholar [12] S. Liu, E. Ding, P. Ning, G. Xie, N. Yang. Vanadium extraction from roasted vanadium-bearing steel slag via pressure acid leaching.
Selective separation of aluminum, silicon, and titanium from red mud using oxalic acid leaching, iron precipitation and pH adjustments with calcium carbonate ... Recovery of iron and aluminum from red mud by oxalic acid leaching and solar photocatalysis. Environ. Eng., 39 (12) (2021), pp. 199-205 (In Chinese) 10.13205/j.hjgc.202112030.
Based on the aforementioned experimental results, more than 96.4% of aluminum was selectively extracted and less than 1.1% of iron was co-extracted under the following optimal conditions of: initial pH value of 0.92, D2EHPA concentration (v/v) of 40%, A/O ratio of 1, and extraction time of 15 min. Lithium was hardly extracted and the separation ...
The method was applied to the separation of iron and aluminium from real samples. 1997 Elsevier Science B.V. Keywords: Cyanex 302; Aluminium(III); Iron(III); Solvent extraction I. Introduction Organophosphorus acids and their esters and oxides have been widely used for the purification and separation of various metals such as Cu(II), Co(II), Ni ...
For a gravi- metric determination it is necessary to separate the titanium from iron and aluminium. By precipita- tion with cupferron in strongly acid medium, or by simple precipitation with excess of sodium hydrox- ide, it is possible to separate titanium from aluminium, but not from iron, which must first be pre- cipitated as sulphide.
Virolainen et al. studied the separation of iron, copper, aluminum and manganese ions from spent LIB (NMC) leach liquor using ion exchange resins. The resin used was Lewatit TP260 (aminomethylphosphonium). The procedure was carried out in two steps, where the separation of copper and manganese was carried out first from sulfuric acid, and the ...
Minerals 2020, 10, 556 4 of 15 As mentioned above, the present paper deals with the removal of aluminum and iron from REEs represented by lanthanum by solvent extraction with saponified NA in the system M2(SO4)3[M = La3+,Al3+,Fe3+]-H 2SO4-H2O/SAP-NA-2-oct.-kerosene and by hydrolysis-precipitation.Both methods
This paper introduces different extractants and extraction methods used in iron separation (solvent extraction, ion-exchange resin extraction, membrane extraction, and ionic …
Separation of U and Al. Pure U metal and Al-U alloy anodes were both employed to demonstrate general performance of IAP. These anodes before and after electrolysis are shown in Fig. 2a, b, where ...
It exists as separate metal pieces surrounded by a silicate phase that looks like "slag." ... allows for the separate extraction of iron and titanium. This advanced method enables the creation of a magnetic fraction consisting of 3.7 % titanium dioxide and 50.9 % iron, as well as a non-magnetic fraction having 65.8 % titanium dioxide and 3.5 % ...
The sol-gel approach was used to synthesise lanthanum and aluminium doped yttrium ferrite nanoparticles. The absorption peak is observed at ~265 nm corresponds to band gap of 2.9–3.1 eV.
Based on the study of mineralogy, the separation of aluminum and iron from high ferrous bauxites (A and B) was investigated. The results show that the chief mineral is diaspore (size of 5-20 nm ...
Lateritic iron ore has not been used effectively due to excess content of multiple metals. In this work, separation of aluminium from a high-aluminium lateritic iron ore was achieved by the ...
Technologies to remove iron from aluminum are extensively reviewed. The precipitation and removal of Fe-rich phases (sludge) are discussed. The dense phases can be removed by …
Iron in CSS mainly exists in the form of complex iron oxides such as iron olivine rather than magnetite or hematite, which is difficult to be recovered efficiently by traditional beneficiation methods (Li et al., 2021).In order to separate iron from CSS, it is necessary to convert the complex iron oxide into metal iron or ferric oxide, and then recover it through …
Technologies to remove iron from aluminum are reviewed extensively. The precipitation and removal of Fe-rich phases (sludge) are discussed. ... (EM) separation, and centrifuge. Other methods ...
Technologies to remove iron from aluminum are reviewed extensively. The precipitation and removal of Fe-rich phases (sludge) are discussed. The dense phases can be removed by …
In this experiment, anatase sulfuric acid leaching liquor is taken as the research object to conduct aluminum–iron separation and high-purity alumina preparation. The leaching solution contains 34.20 g/L of Al 2 O 3, 25.30 g/L of TFe, 7.96 g/L of TiO 2, 12.74 mg/L of Sc 2 O 3, and 288.72 g/L of H 2 SO 4 .
Chemical Separation of Metal Ions. Formation of crystals from a saturated solution is a heterogeneous equilibrium phenomenon, and it can be applied to separate various chemicals or ions in a solution. When solubilities of two metal salts are very different, they can be separated by precipitation. ... Iron(II) hydroxide is only sparingly soluble ...