On the possibility of autoclave desiliconization of ilmenite-leucoxene concentrates using lime milk

Autor: K G Anisonyan, G B Sadykhov, Y V Zablotskaya, A S Tuzhilin
Rok vydání: 2021
Předmět:
Zdroj: Journal of Physics: Conference Series. 1942:012034
ISSN: 1742-6596
1742-6588
DOI: 10.1088/1742-6596/1942/1/012034
Popis: This article presents the results of studies on the autoclave desilicization of silicon-titanium concentrates of the Pizhemskoye field. Leaching was carried out using burnt lime as a reagent in the presence of the initiator NaOH. The work was carried out on two types of concentrate-pseudorutyl (siliceous-ilmenite) and leucoxene concentrate, which differ in the content of SiO2 (14,03 and 36,8%, respectively) and Fe2O3 (21,6 and 1,1%, respectively). The process was based on the selective binding of silica to calcium hydrometasilicate, which, upon subsequent calcination at 1050 °C, crystallizes into β-wollastonite.
Databáze: OpenAIRE