The separation of titanium, vanadium and chromium in vanadium slag (VS) is a difficult problem restricting the comprehensive utilization of VS. This paper presents the first study on the separation of titanium, vanadium and chromium from oxalic acid leachate of VS. Firstly, the separation of titaniu …

The resulting enhancement of niobium extraction and the separation of niobium and titanium by oxalate were studied. The presence of oxalate was found to be critical for extracting niobium in the H 2 SO 4 system. In addition, the effects of various parameters including the concentrations of aqueous H + and N235, phase ratio, …

Separation of iron from titanium acidic solutions with tri-octylphosphine oxide (TOPO) and trioctylamine (TOA) has been investigated. TOA was found to be more selective for extraction of Fe compared with TOPO from HCl concentrations >1 M. Iron could be stripped effectively from the loaded TOA in 1 M HClO 4.Parameters affecting the …

At various fineness of grinding by magnetic separation, conditioned titanium-magnetite concentrates have been obtained. The yield of the concentrate from the ore is 10.9–10.5 %, with Feобщ ...

Recovering the metallic content of the red mud is possible using physical and chemical processes. In this regard, vast number of studies have been conducted on recovery of iron from the red mud [21], [22], [23], [24].Various techniques, such as magnetic separation, gravity separation, reduction roasting, and reduction smelting have been …

This study proposes a novel approach for the separation and recovery of titanium, scandium, and iron from acidic wastewater and red gypsum utilization. The recovery eciency of titanium in acidic wastewater was 97.59% under the molar ratio of titanium dioxide to phosphoric acid of 1:2.2, the reaction temperature

The results show that a concentrate with a TiO 2 grade of 9.90% can be separated via weak magnetic separation and coarse particle tailing dumping. The concentrate grade is then increased to 14.32% via strong …

Titanium Ore Processing and Beneficiation. To develop a flowsheet for separation of high grade titanium-rutile from ilmenite, that will meet market requirements. Rutile has a SG of 4.2, hardness 6.0 to 6.5 and is non-magnetic; while ilmenite has a SG of 4.5 to 5.0, hardness of 5.0 to 6.0, and is weakly magnetic.

As a result, effective separation of titanium minerals and iron minerals was achieved, while the separation of vanadium and titanium was also realized. 2. Materials and methods2.1. Raw material. The raw material is a mixed of ilmenite and hematite obtained via high-intensity magnetic separation of a certain titanium-vanadium hematite …

The separation and extraction of titanium, iron, and alumina from coal fly ash can provide economic and environmental benefits. This work presents an electrolysis-hydrolysis method to alter the precipitation order of iron and alumina by changing the ion charge sequence to extract iron and alumina in an orderly manner while recovering the …

Separation rate in reciprocating instruments was similar in single-use or in multiple uses 0.2%. Conclusions: Separation of instruments has dropped recently and seems to be a minor problem in current Endodontics. Multiple uses of NiTi rotary instruments are a possibility without significantly increasing the risk of instrument …

This article is cited by 32 publications. Mohsin. Qureshi, K. G. Varshney, and R. C. Kaushik. Cation exchange studies of titanium (4+), vanadium (5+), iron (3+), niobium (5+), and …

The results showed that by appropriately adjusting the concentration of titanium solution and organic phase composition, the single-stage extraction rate of …

Separation of Titanium and Zirconium From Aluminum. Titanium and zirconium are reported to be quantitatively separated from aluminum by precipitation with cupferron from strongly acidic solution . Titanium is precipitated as titanium cupferrate, Ti(C 6 H 5 N 2 O 2) 4, which can be ignited to TiO 2.

The raffinate obtained after extracting scandium from titanium dioxide waste acid (hereafter, waste acid-A) contains a lot of valuable components. The extraction separation process of Ti(IV) and Fe(II) from the raffinate using a D2EHPA-sulfonated kerosene extraction system was studied under different conditions. The results showed …

In recent years, the focus of acid titanium dioxide wastewater utilization has primarily been on titanium recovery through methods such as extraction separation [5], [6], [7], membrane separation [8], and distillation [9]. However, the development of simpler, more cost-effective, and faster recovery methods is still necessary due to the ...

Separation and recovery of titanium and scandium from the red mud. April 2023. Separation and Purification Technology 317 (1–2):123882. DOI: 10.1016/j.seppur.2023.123882. Authors: Hossein Habibi ...

A new separation method of Ti from silicate materials is presented that is suitable for the determination of natural Ti isotope variations using multi-collector inductively coupled plasma source ...

The separation and recovery of V(V) and Cr(VI) from solution can achieve the dual purpose of resource utilization and environmental protection. In this work, amorphous titanium-based microspheres with a large specific surface area of 574.86 m 2 /g were prepared by the simple hydrolysis of titanium alcohol. This adsorbent exhibited …

Abstract. In this study, a full process in recovery of titanium and rare earth elements (REEs) from the red mud was developed. The suggested route consists of four main stages in the process flow diagram: sample preparation, leaching, hydrolysis, and solvent extraction. Sample preparation is proposed using a two-stage water washing …

A Novel Approach for Separation and Recovery of Titanium, Scandium, Iron from Acidic Wastewater and Red Gypsum Utilization. Published: 21 April 2022. …

The extraction and separation of titanium and iron from a simulated titanium dioxide solution by sulfuric acid method was systematically studied using TRPO as the extractant. The results showed that by appropriately adjusting the concentration of titanium solution and organic phase composition, the single-stage extraction rate of …

1. Introduction. The vanadium–bearing titanomagnetite (VBT) is a strategic and complex iron ore, which containing valuable metals of vanadium, titanium, and iron used as constituents of several alloys, whitepigments, and steel [1], [2], [3].In China, the gross reserve of titanium in VBT ore is estimated to be about 1.18 million tons, …

Vanadium titanomagnetite (VTM) is an important mineral for developing titanium resources, but the comprehensive recovery of ilmenite separation is extremely poor, resulting in the low-efficiency utilization of titanium …

The separation of titanium, vanadium and chromium in vanadium slag (VS) is a difficult problem restricting the comprehensive utilization of VS. This paper presents the first study on the separation of …

Abstract. This study focuses on the separation of titanium dioxide from water by cross-flow microfiltration (CMF) within wastewater treatment by photocatalysis using slurry reactor systems. The systematic studies have shown that the separation performance of TiO2 particles is strongly affected by cross-flow velocity, transmembrane pressure ...

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 …

Keywords: extraction, titanium, separation, D2EHP A, PC-88A and stripping. INTRODUCTION. Titanium metal has become known as a space-age metal because of its high stren-

The subsequent separation of scandium and titanium from the scandium-titanium residue is the key to recover these two valuable metals from the red mud. Based on the difference in hydrolysis behavior between titanium and scandium, it is feasible to keep the titanium remaining in the solid phase while gradually leaching the scandium …

Nevertheless, the intracanal separation of Nickel-Titanium rotary instruments is still a major concern of endodontists, with a consequent possible reduction in the outcome rate. As thoroughly demonstrated, the two main causes of intracanal separation of endodontic instruments are the cyclic fatigue and the torsional loads.