- PII
- S30345545S0044461825070048-1
- DOI
- 10.7868/S3034554525070048
- Publication type
- Article
- Status
- Published
- Authors
- Volume/ Edition
- Volume 98 / Issue number 7-8
- Pages
- 441-448
- Abstract
- The work is devoted to the solvometallurgical processing of ferruginous waste from carbonyl nickel production of JSC «Kola MMC» — bottom residue afterburning, the main components of which are iron(III), nickel(II), chromium(III) and cobalt(II). It is shown that the use of solvometallurgical leaching of afterburning residues with octanol-1 saturated with hydrochloric acid makes it possible to combine the processes of leaching and selective extraction of iron(III) in one stage, resulting in the formation of two phases during leaching — an aqueous phase containing non-ferrous metals and an organic phase containing iron(III). It was established that under optimal process conditions — solid:liquid ratio = 1:25, T = 50°C, c(HCl) = 3.36 M — within 1 h, the total extraction of iron(III), nickel(II), cobalt(II) and chromium(III) is 93.2, 85.3, 70.5 and 80.8%, respectively, with 92% Fe(III), 1.2% Ni(II), 12.0% Co(II) and less than 0.1% Cr(III) passing into the extractant phase. The resulting de-ironed hydrochloric acid solution of non-ferrous metals can be sent for separation of non-ferrous metals, and the iron-containing extract after washing from non-ferrous metal impurities can be sent for re-extraction with subsequent production of iron(III) chloride solution and regeneration of the extractant.
- Keywords
- сольвометаллургия никелевые отходы железо(III) октанол-1 соляная кислота
- Date of publication
- 01.01.2026
- Year of publication
- 2026
- Number of purchasers
- 0
- Views
- 41
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