Direct Cupric Chloride Leaching of Gold from Refractory Sulfide Ore: Process Simulation and Life Cycle Assessment

Marja Rinne; Heini Elomaa; Sipi Seisko; Mari Lundstrom

doi:10.1080/08827508.2021.1910510

Direct Cupric Chloride Leaching of Gold from Refractory Sulfide Ore: Process Simulation and Life Cycle Assessment

Marja Rinne, Heini Elomaa, Sipi Seisko, Mari Lundstrom^*

^*Tämän työn vastaava kirjoittaja

Outotec Research Center

Tutkimustuotos: Lehtiartikkeli › Article › Scientific › vertaisarvioitu

13 Sitaatiot (Scopus)

194 Lataukset (Pure)

Abstrakti

A simulation-based life cycle assessment was conducted to compare the impacts of different cyanide-free chloride processing routes for refractory ores to determine whether one-stage leaching of gold from the ores could be advantageous over chloride leaching after conventional pressure oxidation from an environmental perspective. It was shown that both leaching conditions and the refractoriness of the ore strongly affect the environmental impacts of the process. The global warming potential in the direct leaching route was determined to vary between 7.7–17.0 t CO₂-eq for 1 kg gold/Au. Prerequisites for the sustainable application of the direct leaching process are suggested.

Alkuperäiskieli	Englanti
Sivut	598–609
Sivumäärä	12
Julkaisu	Mineral Processing and Extractive Metallurgy Review
Vuosikerta	43
Numero	5
Varhainen verkossa julkaisun päivämäärä	13 huhtik. 2021
DOI - pysyväislinkit	https://doi.org/10.1080/08827508.2021.1910510
Tila	Julkaistu - 4 heinäk. 2022
OKM-julkaisutyyppi	A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

YK:n kestävän kehityksen tavoitteet

Tämä tuotos edistää seuraavia kestävän kehityksen tavoitteita:

Pääsy asiakirjaan

10.1080/08827508.2021.1910510Lisenssi: CC BY

CHEM_Rinne_et_al_Direct_Cupric_Chloride_2021_Mineral_Processing_and_Extractive_Metallurgy_ReviewFinal published version, 2,23 MBLisenssi: CC BY

Muut tiedostot ja linkit

Linkki julkaisuun Scopuksessa

GoldTail: Kultapitoisten rikastushiekkojen kestävä hyödyntäminen (GoldTail)
Lundström, M. (Vastuullinen tutkija), Yliniemi, K. (Projektin jäsen), Halli, P. (Projektin jäsen), Karppinen, A. (Projektin jäsen), Revitzer, H. (Projektin jäsen), Wilson, B. (Projektin jäsen), Seisko, S. (Projektin jäsen), Sahlman, M. (Projektin jäsen) & Wang, Z. (Projektin jäsen)
01/10/2018 → 30/09/2021
Projekti: Academy of Finland: Other research funding

Raaka-aineiden tutkimusinfrastruktuuri
Karppinen, M. (Manager)
Kemian tekniikan korkeakoulu
Laitteistot/tilat: Facility

Siteeraa tätä

@article{d4decba995ab4ddeaf6f0d47bd37eb50,

title = "Direct Cupric Chloride Leaching of Gold from Refractory Sulfide Ore: Process Simulation and Life Cycle Assessment",

abstract = "A simulation-based life cycle assessment was conducted to compare the impacts of different cyanide-free chloride processing routes for refractory ores to determine whether one-stage leaching of gold from the ores could be advantageous over chloride leaching after conventional pressure oxidation from an environmental perspective. It was shown that both leaching conditions and the refractoriness of the ore strongly affect the environmental impacts of the process. The global warming potential in the direct leaching route was determined to vary between 7.7–17.0 t CO2-eq for 1 kg gold/Au. Prerequisites for the sustainable application of the direct leaching process are suggested.",

keywords = "environmental impacts, halide leaching, non-cyanide lixiviants, process development, Sustainability",

author = "Marja Rinne and Heini Elomaa and Sipi Seisko and Mari Lundstrom",

note = "Funding Information: The authors would like to thank the Emil Aaltonen Foundation for financially supporting the “Sustainable gold” project. The study was also supported by GoldTail (Grant No. 319691), funded by the Academy of Finland, and the Finnish Foundation for Technology Promotion. This work was also supported by “RawMatTERS Finland Infrastructure” (RAMI) by the Academy of Finland. Publisher Copyright: {\textcopyright} 2021 The Author(s). Published with license by Taylor & Francis Group, LLC. Copyright: Copyright 2021 Elsevier B.V., All rights reserved.",

year = "2022",

month = jul,

day = "4",

doi = "10.1080/08827508.2021.1910510",

language = "English",

volume = "43",

pages = "598–609",

journal = "Mineral Processing and Extractive Metallurgy Review",

issn = "0882-7508",

publisher = "Taylor & Francis",

number = "5",

}

TY - JOUR

T1 - Direct Cupric Chloride Leaching of Gold from Refractory Sulfide Ore: Process Simulation and Life Cycle Assessment

AU - Rinne, Marja

AU - Elomaa, Heini

AU - Seisko, Sipi

AU - Lundstrom, Mari

N1 - Funding Information: The authors would like to thank the Emil Aaltonen Foundation for financially supporting the “Sustainable gold” project. The study was also supported by GoldTail (Grant No. 319691), funded by the Academy of Finland, and the Finnish Foundation for Technology Promotion. This work was also supported by “RawMatTERS Finland Infrastructure” (RAMI) by the Academy of Finland. Publisher Copyright: © 2021 The Author(s). Published with license by Taylor & Francis Group, LLC. Copyright: Copyright 2021 Elsevier B.V., All rights reserved.

PY - 2022/7/4

Y1 - 2022/7/4

N2 - A simulation-based life cycle assessment was conducted to compare the impacts of different cyanide-free chloride processing routes for refractory ores to determine whether one-stage leaching of gold from the ores could be advantageous over chloride leaching after conventional pressure oxidation from an environmental perspective. It was shown that both leaching conditions and the refractoriness of the ore strongly affect the environmental impacts of the process. The global warming potential in the direct leaching route was determined to vary between 7.7–17.0 t CO2-eq for 1 kg gold/Au. Prerequisites for the sustainable application of the direct leaching process are suggested.

AB - A simulation-based life cycle assessment was conducted to compare the impacts of different cyanide-free chloride processing routes for refractory ores to determine whether one-stage leaching of gold from the ores could be advantageous over chloride leaching after conventional pressure oxidation from an environmental perspective. It was shown that both leaching conditions and the refractoriness of the ore strongly affect the environmental impacts of the process. The global warming potential in the direct leaching route was determined to vary between 7.7–17.0 t CO2-eq for 1 kg gold/Au. Prerequisites for the sustainable application of the direct leaching process are suggested.

KW - environmental impacts

KW - halide leaching

KW - non-cyanide lixiviants

KW - process development

KW - Sustainability

UR - http://www.scopus.com/inward/record.url?scp=85104442329&partnerID=8YFLogxK

U2 - 10.1080/08827508.2021.1910510

DO - 10.1080/08827508.2021.1910510

M3 - Article

AN - SCOPUS:85104442329

SN - 0882-7508

VL - 43

SP - 598

EP - 609

JO - Mineral Processing and Extractive Metallurgy Review

JF - Mineral Processing and Extractive Metallurgy Review

IS - 5

ER -

Direct Cupric Chloride Leaching of Gold from Refractory Sulfide Ore: Process Simulation and Life Cycle Assessment

Abstrakti

YK:n kestävän kehityksen tavoitteet

Pääsy asiakirjaan

Muut tiedostot ja linkit

Sormenjälki

Projektit

GoldTail: Kultapitoisten rikastushiekkojen kestävä hyödyntäminen (GoldTail)

Laitteet

Raaka-aineiden tutkimusinfrastruktuuri

Siteeraa tätä