Open AccessRecovery of niobium from wastes generated in titanium production by cation exchange sorbents
Author(s) -
Omirserik Baigenzhenov,
Azamat Toishybek,
Alibek Khabiyev,
Indira Aimbetova,
A.T. Dagubayeva
Publication year - 2021
Publication title -
kompleksnoe ispolʹzovanie mineralʹnogo syrʹâ
Language(s) - English
Resource type - Journals
eISSN - 2616-6445
pISSN - 2224-5243
DOI - 10.31643/2021/6445.33
Subject(s) - sorption , leaching (pedology) , niobium , hydrochloric acid , ion exchange , titanium , chemistry , chloride , nuclear chemistry , inorganic chemistry , ion , geology , organic chemistry , soil water , adsorption , soil science
This article presents the technology of niobium recovery by processing of chloride residues generated during the chlorination of titanium slags. For waste processing, a two-stage leaching technology is proposed. Water is used at the first stage of leaching and hydrochloric acid 4.0 M is used at the second stage. For the purpose of sorption of niobium from the solution composition obtained during leaching, cation-exchange sorbents Purolite-C104 and KU-2-8 H were used. By the usage of Purolite-C104 ion exchange resin the sorption efficiency of niobium from a solution with a concentration of 2 g/l was about 71.0 % (0.071 g/g) in 3.5 hours, while for KU-2-8 H ion exchange resin, sorption efficiency was about 89.0 % (0.089 g/g).