Semantic Scholar extracted view of "Extraction of scandium from scandium-rich material derived from bauxite ore residues" by Guanghui Li et al.
It utilizes feeding titanium ore to a fluidized bed chlorinator at 800°-1250° C. to produce a vaporous (principally titanium chloride and possibly silicon and iron chlorides) phase and a solid residue and recovering scandium from the solid residue. The very low level of scandium present in titanium ore is concentrated in the residue, making ...
The presence of a considerable amount of scandium in lateritic nickel-cobalt ores necessitates the investigation of possible processing alternatives to recover scandium as a byproduct during nickel and cobalt production. Therefore, in this study, rather than interfering with the main nickel-cobalt production circuit, the precipitation-separation …
The strategic importance of scandium was emphasised by its inclusion in the US government's 2018 list of 35 critical minerals 1. This list was an initial step toward ensuring reliable and secure supplies of …
Request PDF | Scandium: Ore deposits, the pivotal role of magmatic enrichment and future exploration | Scandium (Sc), known as the "miracle metal", has unique properties in material sciences ...
This patent describes a process for extracting scandium from ore comprising zirconium silicate. It comprises feeding scandium-containing zircon ore to a fluidized bed chlorinator at 800 {degrees} C-1250 {degrees} C to produce a vaporous phase, the vaporous phase principally comprising zirconium and silicon chlorides, and to …
The recovery of scandium (Sc) from wastes and various resources using solvent extraction (SX) was discussed in detail. Moreover, the metallurgical extractive procedures for Sc recovery were presented. Acidic and neutral organophosphorus (OPCs) extractants are the most extensively used in industrial …
The crustal abundance of scandium is 22 ppm ( Rudnick & Fountain, 1995 ). According to Wang (2004), various types of ore in the Bayan Obo deposit have Sc 2 O 3 contents between 40 and 169 ppm. In the REE ore tailing, the Sc 2 …
Scandium is primarily deported in dolomite, with lesser quantities in pyrochlore and biotite. The process flowsheet recovers separate niobium, titanium, and scandium products. Scandium is extracted from whole ore hydrochloric acid leach solutions using solvent extraction and is further refined through a re-leach and …
Scandium (Sc), known as the 'miracle metal', has unique properties in material sciences, and is a critical resource in the world due to the low supply but wide applications in advanced technology. Despite not extraordinarily sparse in the Earth's crust, Sc is often dispersed and does not form ore deposits.
This study investigated the high-pressure acid leaching behavior of scandium (Sc) together with nickel (Ni) and cobalt (Co) from a refractory nickel laterite ore.
The high affinity and selectivity of Puromet MTS9580 make it a promising sorbent for the recovery of scandium from PLS of selective leaching of BR. Obtaining Sc and other REE concentrates from desorption solutions will be discussed in future studies.
Therefore, scandium extraction from alternative resources such as secondary resources located in Europe is of great concern. Within this context, this work provides a condensed state-of-art review of the issue of …
A process for separation and recovery of Sc from high pressure acid leach (HPAL) liquor of limonitic laterite was proposed in this paper. Based on the chemical composition of the leach liquor, precipitation thermodynamic …
This lack of scandium occurrence in high concentrations is reflected by the global scandium production that was traditionally relying on byproduct recovery from the processing of other metals, most notably the tailings from the production of other rare earth elements and uranium ( Gambogi, 2019 ).
Since 2015, JX Nippon Mining & Metals has been developing a process for scandium recovery from the residue of a titanium -smelting process. The process consists of the following steps: scandium concentrating by classification or neutralization, selective scandium leaching, impurity removal by neutralization, solvent extraction of scandium …
For scandium recovery from various processing liquid wastes and leachates, solvent extraction is widely used because it generally offers the advantages of good processing capacity, operational ...
This study investigated the leaching of scandium from a Sc-bearing silicate ore. The Sc concentrate obtained by beneficiation pre-enrichment has 1.03 …
Scandium accounts for approximately 90% of the commercial worth of the REEs found in RM, and its high concentration (50–120 mg/kg) makes it a suitable ore for this element (Reid et al., 2017; Akcil et al., 2018).
This is a process for extracting scandium from zircon ore. It utilizes feeding zircon sand to a fluidized bed chlorinator at about 1000° C. to produce a vaporous (principally zirconium and silicon chlorides) phase and a solid residue …
Priority was given to addressing the technological and economic challenges associated with the recovery of scandium from the said residues, with particular emphasis on the bauxite residue from alumina production, which represents nearly 5 million tons on dry basis per year in Europe.
Therefore, scandium extraction from alternative resources such as secondary resources located in Europe is of great concern. Within this context, this work provides a condensed state-of-art review of the issue of scandium recovery from industrial wastes.
Besides, scandium-extractable ore at economic concentrations is very scarce [9], so it needs to be produced from by-products of industrial extraction of a range of other metals such as uranium ...
The Bokan project in Alaska and the Round Top project in Texas also included scandium recovery in their process plans. In addition, research continued to develop methods for separating scandium from coal and coal byproducts. SOFC sourcing of scandium is expanding beyond China to include Japan and the Philippines.
The total reserves of scandium (Sc 2 O 3) are about 115,000 tons (Lin et al., 2007), and thorium (ThO 2) resource reserves of Bayan Obo mine are 221,000 tons (Xu, 2005). However, comprehensive utilization rate of niobium, scandium and some other elements in Bayan Obo ore is very low.
Wang et al. [ 18] reviewed scandium recovery through metallurgical pathway from various resources, including scandium ores, residues, tailings and waste liquors, focusing on the selection of processes to recover scandium as a minor element and incorporating the scandium recovery process into the main flowsheet for the …
Recovery of Scandium, Nickel and Cobalt from Hydrometallurgical Waste of Laterite. Recovery of new-energy critical metals including scandium, nickel and cobalt as well as copper and zinc from a neutralization residue produced in laterite hydrometallurgical process has been studied.….
This ore contains considerable amount of scandium, a strategic material in increasingly high demand in various industries. Here, an innovative two-step process was developed in which scandium is first concentrated in a slag phase using carbothermic reduction and then is leached using NaOH cracking process.
Ternary extractant system consisting of PC-88A, TOPO, and Versatic 10 for recovery of scandium (III) from nickel laterite processing liquors
Scandium is challenging and expensive to isolate in pure form using conventional solvent extraction. Now a covalent organic framework (COF) has been synthesized that can incorporate scandium ...
Feuling, 1991a, Feuling, 1991b described a method for recovery of yttrium and scandium from titanium ore. Yttrium was recovered by residue after treatment of titanium ore for the retrieval of scandium. This element was recovered by leaching with HCl, followed by solvent extraction with a polyalkyl phosphate – containing organic phase.
Semantic Scholar extracted view of "Recovery of scandium and aluminum from limonitic laterite intermediate product" by Zhengen Zhou et al.
The objective of this study is determining the extraction possibility of scandium from the leach solution of lateritic nickel-cobalt ore by ion exchange chromatography using various resins.
The environmental impact of scandium recovery and recycling has also been discussed. Concentration of scandium in different mineral ores other than bauxite ores.
The recovery of scandium mainly refers to the scandium enriched in some intermediate products or by-products when comprehensively treating scandium bearing mineral resources. When …
Semantic Scholar extracted view of "Recovery of scandium from Canadian bauxite residue utilizing acid baking followed by water leaching." by J. Anawati et al.
Zhang et al. [9] proposed a new combined extraction process for recovering rare earth, niobium and scandium from Bayan Obo tailings consisting of phase transformation of major minerals in a NaCl ...
