Work

Pilot Tests of the Technology of Nitric Acid Processing of Perovskite Concentrate to Produce Technical Titanium Dioxide

Year: 2025

Type: article

Abstract: Perovskite concentrate (PC) contains such valuable components as titanium, niobium, tantalum, and rare earth elements (about 55 % by oxides). An undesirable impurity in PC is radioactive components (RAC) which are one of the main obstacles in advancing the technology to industrial implementation. As numerous studies show, RAC can be effectively separated by the interaction of PC with nitric acid. Oxides of rare earth elements, calcium, and titanium, niobium, and tantalum form the solid phase together with thorium. In our opinion, nitric acid treatment should be carried out in an autoclave. Its conditions ensure the formation of a crystalline precipitate of titanium, a rare metal. This precipitate primarily contains rutile. Rutile is a precursor and is effectively used in chloride technology for titanium and titanium-rare metal raw materials to produce metallic titanium and rare metal compounds.

Source: Transaction Kola Science Centre

DOI: 10.37614/2949-1215.2025.16.1.029

Authors: Lidia G. Gerasimova, Ekaterina S. Shchukina, Anatoly G. Artemenkov, Anatoly I. Nikolaev

Institution: Kola Science Centre

Language: English

Topic: Extraction and Separation Processes

Subfield: Metals and Alloys

Field: Materials Science

Domain: Physical Sciences

SDG: Responsible consumption and production

Open Access status: diamond

Funder: Russian Academy of Sciences