Removal of magnesium from sulphate solutions by chemical precipitation

Citation
S. Agatzini-leonardou et al., Removal of magnesium from sulphate solutions by chemical precipitation, T I MIN M-C, 107, 1998, pp. C123-C129
Citations number
13
Categorie Soggetti
Geological Petroleum & Minig Engineering
Journal title
TRANSACTIONS OF THE INSTITUTION OF MINING AND METALLURGY SECTION C-MINERALPROCESSING AND EXTRACTIVE METALLURGY
ISSN journal
03719553 → ACNP
Volume
107
Year of publication
1998
Pages
C123 - C129
Database
ISI
SICI code
0371-9553(199809/12)107:<C123:ROMFSS>2.0.ZU;2-G
Abstract
Heap-leaching of low-grade nickeliferous laterites with sulphuric acid resu lts in a need to remove magnesium from the leach liquors produced during th e hydrometallurgical process of nickel and cobalt recovery. Magnesium was p recipitated from synthetic solutions with the aid of sodium carbonate, sodi um bicarbonate or both. The effect of the precipitation conditions (precipi tating agent, agent concentration and temperature) on the removal of magnes ium as well as on the characteristics of the precipitate, which determine i ts use as a filler, were investigated.