+86 0371 8654 9132

system and method for recovery of scandium values from scandium

US20120207656A1 - System and Method for Recovery of ...

A method for extracting scandium values from scandium-containing ores is provided. The method comprises (a) providing ( 203 ) an ore which contains scandium; (b) treating ( 205 ) the ore with an acid; (c) baking the ore; and (d) leaching ( 207 ) scandium from the baked ore.

Read More
RECOVERY OF SCANDIUM VALUES THROUGH SELECTIVE ...

A method is provided for recovering scandium values from scandium-bearing ores. The method includes providing a scandium-bearing ore; subjecting the scandium-bearing ore to atmospheric pressure acid leaching with sulfuric acid, thereby producing a first, scandium-bearing solution containing ferric (Fe 3+) ions; subjecting the first solution to hydrothermal processing, thereby precipitating ...

Read More
A novel synergistic extraction system for the recovery of ...

2020-2-15  A lot of researches have been made on the extracting and separating scandium from the leach liquor of different raw ores, including solvent extraction, ion exchange, liquid membrane, adsorption and co-precipitation and so on , , , , .Among of them, solvent extraction is one of the most effective methods to separate scandium from leach liquor.

Read More
Recovery of Scandium by Crystallization Techniques ...

2019-1-25  Scandium is a precious metal that has increasingly found use in many applications, which include production of high strength aluminum alloys for aircraft

Read More
Method for recovering high-purity scandium - SUMITOMO ...

2015-11-25  System and Method for Recovery of Scandium Values From Scandium-Containing Ores: 2012-08-16: Duyvesteyn: 423/21.1: 7282187: Recovery of metal values: 2007-10-16: Brown: 423/10: 5787332: Process for recovering tantalum and/or niobium compounds from composites containing a variety of metal compounds: 1998-07-28: Black: 423/16: 4765909

Read More
Research on Scandium Recovery and Extraction Process ...

Some methods and application status for Recovery of scandium and extraction of high purity scandium oxide from materials containing scandium were summarized . some corresponding recovery methods and extraction processes were suggested.

Read More
Separation and recovery of scandium and titanium from

The loss of scandium and titanium were 6.3% and 5.9%, respectively. Compared with the traditional extraction procedure of scandium in red mud, this method could separate titanium from scandium effectively, which is beneficial for the purification of the products and improvement of value of the metal.

Read More
Separation and recovery of iron and scandium from acid ...

2020-12-1  1. Introduction. Red mud is a highly alkaline and hazardous solid waste generated from the alumina refining of bauxite ores by Bayer and sintering processes. 1 During the extraction of alumina, about 40% of raw ores remain in the residue as a red mud slurry (pH 10.0–12.5) covering 15%–40% of the solid phase in volume. 2 In general, production of 1 ton of aluminum generates 0.5–2 tons of ...

Read More
Application of P507 and isooctanol extraction system in ...

2019-9-1  In this paper, the extraction of Sc by P507 with isooctanol system has been studied. The recovery of Sc in practical solutions was tested by a simulated red mud leaching liquor. The red mud was chosen as the recovery object because it has high generation (120 million tons annually) and relatively high content of Sc.26, 27. 2. Materials and ...

Read More
WO2016151959A1 - Method for recovering scandium -

Provided is a method for recovering scandium, which enables easy and efficient recovery of high-quality scandium from an acidic solution containing scandium. According to this method for recovering scandium, an acidic solution containing scandium is used and a scandium dissolution liquid after purification is obtained by a double sulfate precipitation step including the steps [A]-[C] described ...

Read More
Ion exchange method for the recovery of scandium - GTE ...

A method of recovering scandium values from a tungsten ore residue comprising the following steps: ... the purpose of this invention to provide a method for the recovery of scandium from solution using cation exchange resin of the weakly acidic type. ... If tetravalent manganese is present in the system, as is the case with this material, it is ...

Read More
Research on Scandium Recovery and Extraction Process ...

Some methods and application status for Recovery of scandium and extraction of high purity scandium oxide from materials containing scandium were summarized . some corresponding recovery methods and extraction processes were suggested.

Read More
EP0775753A1 - Process for recovering scandium from

A process for recovering scandium economically with high efficiency by concentration and separation from an oxide ore containing nickel and a small amount of scandium as well as a large amount of iron and/or aluminum comprises the steps of acid leaching the oxide ore under a high-temperature, high-pressure oxidative atmosphere while restraining leaching of the iron and/or aluminum, thereby ...

Read More
Recovery of Scandium by Crystallization Techniques ...

2019-1-25  Scandium is a precious metal that has increasingly found use in many applications, which include production of high strength aluminum alloys for aircraft parts and use in solid oxide fuel cells (SOFCs) [].Scandium, in concentrations not exceeding

Read More
Separation and recovery of scandium and titanium from

The loss of scandium and titanium were 6.3% and 5.9%, respectively. Compared with the traditional extraction procedure of scandium in red mud, this method could separate titanium from scandium effectively, which is beneficial for the purification of the products and improvement of value of the metal.

Read More
Separation and Extraction of Scandium from Titanium ...

2021-3-24  The solvent extraction method for extracting scandium from titanium dioxide waste acid is usually accompanied by co-extraction of titanium. In this paper, the scandium and titanium separation of the Sc(III) and Ti(IV)-loaded organic phase and the recovery of scandium were studied. A new scrubbing agent containing Na3Cit and H2O2 was used to selectively remove titanium from the Sc(III) and Ti ...

Read More
(PDF) Recovery of Scandium by Leaching Process from ...

The goal of this work was to study the recovery of scandium from Brazilian red. mud (BRM) by leaching process. Sulphuric acid 20 wt% was used as leaching agent, S/L ratio was set at 1/10 and ...

Read More
(PDF) Recovery of Rare Earth Elements and Scandium from ...

Among all the tests conducted, the best separation performance was achieved using a one-stage precipitation at a pH value of 4.8, 50 v% TBP, solvent extraction feed pH of 3.5, and an O/A ratio of ...

Read More
Separation and recovery of iron and scandium from acid ...

2020-12-1  1. Introduction. Red mud is a highly alkaline and hazardous solid waste generated from the alumina refining of bauxite ores by Bayer and sintering processes. 1 During the extraction of alumina, about 40% of raw ores remain in the residue as a red mud slurry (pH 10.0–12.5) covering 15%–40% of the solid phase in volume. 2 In general, production of 1 ton of aluminum generates 0.5–2 tons of ...

Read More
Research on Scandium Recovery and Extraction Process ...

Some methods and application status for Recovery of scandium and extraction of high purity scandium oxide from materials containing scandium were summarized . some corresponding recovery methods and extraction processes were suggested.

Read More
(PDF) Recovery of Rare Earth Elements and Scandium from ...

Among all the tests conducted, the best separation performance was achieved using a one-stage precipitation at a pH value of 4.8, 50 v% TBP, solvent extraction feed pH of 3.5, and an O/A ratio of ...

Read More
Recovery of scandium(iii) from diluted aqueous solutions ...

2018-10-8  Introduction Scandium belongs to the group of rare-earth elements (REEs) and finds applications in aluminum alloys, halide lamps and fuel cells. 1 However, it is an expensive metal with small global production volumes. Although scandium is relatively

Read More
Selective recovery of vanadium and scandium by ion ...

More than 99% of vanadium was selectively adsorbed from the hydrochloric acid leaching solution under the conditions of pH value of 1.8, volume ratio of leaching solution to resin of 10, and flow rate of 3.33 mL/min. Maximum extraction and separation of scandium was observed from the acid leaching solution at an aqueous pH value of 0.2. More ...

Read More
Separation and Extraction of Scandium from Titanium ...

2021-3-24  The solvent extraction method for extracting scandium from titanium dioxide waste acid is usually accompanied by co-extraction of titanium. In this paper, the scandium and titanium separation of the Sc(III) and Ti(IV)-loaded organic phase and the recovery of scandium were studied. A new scrubbing agent containing Na3Cit and H2O2 was used to selectively remove titanium from the Sc(III) and Ti ...

Read More
Extraction of scandium values from copper leach solutions ...

Extraction of scandium values from copper leach solutions Abstract. A method is provided for extracting scandium values from an ore feedstock. The method includes providing a feedstock of a copper ore which contains scandium values; extracting scandium values from the ore with a leaching solution, thereby obtaining a pregnant leachate; contacting the pregnant leachate with an ion exchange ...

Read More
(PDF) Recovery of Scandium by Leaching Process from ...

The goal of this work was to study the recovery of scandium from Brazilian red. mud (BRM) by leaching process. Sulphuric acid 20 wt% was used as leaching agent, S/L ratio was set at 1/10 and ...

Read More
Recovery of Scandium from Leachate of Sulfation-Roasted ...

2017-8-28  The leachate obtained from sulfation-roasted Bayer red mud is suitable for extraction of scandium by liquid–liquid solvent extraction because it contains trace amounts of Fe3+ and Si4+. In this study, a completely new metallurgical process for selective recovery of scandium from Bayer red mud was proposed. The extraction performances of Sc3+, Fe3+, Al3+, Si4+, Ca2+, and Na+ from synthetic ...

Read More
Solvent Extraction off Scandium from Wolframite Residue ...

2012-10-26  The particular properties of scandium make it an attractive candidate for recovery by solvent extraction—one of the most important processes in hydrometallurgy for the separation, purification and concentration of metal ions. Toward this end, an acid leaching and solvent extraction system has been developed and optimized to extract scandium from wolframite residue. With the technique, the ...

Read More
(PDF) Concentration and Separation of Scandium from Ni ...

2017-12-12  The current world supply is small at 15-20 tonnes per year and is largely serviced by scandium by-product recovery from production of other metals. In recent years, an increase in demand for ...

Read More