2017
DOI: 10.22531/muglajsci.346041
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Recovery of Cyanide From Effluents Using Carbon Dioxide

Abstract: Cyanidation effluents are treated in order to reduce the cyanide level down to regularity limits. Cyanide recovery is the most desired route for treatment of effluents of high cyanide consuming ores, in particular, due to economic and environmental incentives. In this study, carbon dioxide (CO2) was utilised as an alternative for acidification of cyanide solutions prior to absorption/recovery of hydrogen cyanide (HCN(g)) in alkaline solutions. Kinetic tests indicated that reaction time was an important paramet… Show more

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Cited by 4 publications
(4 citation statements)
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“…When we used a precursor solution in pure DI water where pH is ~9, porous structures were not formed due to very small amount of N,+ which resulted in very low coordination with the precursors. oxyhydroxide structures need more acidic conditions, because cobalt and iron cyanide precursors are more stable than nickel at fixed pH 45 . Thus, both have a lower degree of dissociation than nickel in aqueous solution to form metal hydroxide cyanide anion.…”
Section: Resultsmentioning
confidence: 99%
See 1 more Smart Citation
“…When we used a precursor solution in pure DI water where pH is ~9, porous structures were not formed due to very small amount of N,+ which resulted in very low coordination with the precursors. oxyhydroxide structures need more acidic conditions, because cobalt and iron cyanide precursors are more stable than nickel at fixed pH 45 . Thus, both have a lower degree of dissociation than nickel in aqueous solution to form metal hydroxide cyanide anion.…”
Section: Resultsmentioning
confidence: 99%
“…† However, unlike nickel hydroxide structures, cobalt hydroxide and iron oxyhydroxide structures need more acidic conditions, because cobalt and iron cyanide precursors are more stable than nickel at xed pH. 45 Thus, both have a lower degree of dissociation than nickel in aqueous solution to form metal hydroxide cyanide anions. 4e).…”
Section: [M(cn)mentioning
confidence: 99%
“…Çözeltiye alma işlemi haricinde farklı süreçlerde de istatistiksel analizler sonuçların yorumlanmasında kullanılmaktadır. Karbon dioksit kullanılarak atık çözeltilerdeki siyanürün geri kazanımı çalışması [23]; çam kozalakları ve çekirdek kabuklarının çözeltideki bileşenleri adsorplama çalışmaları [24,25]; alüminyum ve magnezyum alaşımlarının elektro erozyon yöntemi ile işlenmesi çalışmaları [26,27]; tabakalı kompozit malzemelerin mekanik özelliklerinin araştırılma çalışması [28] ve mermerlerin CNC makinelerinde işlenme çalışması [29] diğer çalışmalara örnek olarak verilebilir.…”
Section: Introductionunclassified
“…Meanwhile, the H 2 O 2 oxidation and ozonation technique can treat cyanide, but it requires a very high cost to proceed [ 8 , 9 ]. Lastly, cyanide recovery by hydrogen has been successfully applied to treat cyanide with low-cost consumption, but it does not follow the requirement of the backfilling procedure [ 10 , 11 ].…”
Section: Introductionmentioning
confidence: 99%