Projects per year
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.
Original language | English |
---|---|
Pages (from-to) | 598–609 |
Number of pages | 12 |
Journal | Mineral Processing and Extractive Metallurgy Review |
Volume | 43 |
Issue number | 5 |
Early online date | 13 Apr 2021 |
DOIs | |
Publication status | Published - 4 Jul 2022 |
MoE publication type | A1 Journal article-refereed |
Keywords
- environmental impacts
- halide leaching
- non-cyanide lixiviants
- process development
- Sustainability
Fingerprint
Dive into the research topics of 'Direct Cupric Chloride Leaching of Gold from Refractory Sulfide Ore: Process Simulation and Life Cycle Assessment'. Together they form a unique fingerprint.Projects
- 1 Finished
-
GoldTail: Towards Sustainable Gold Recovery from Tailings (GoldTail)
Lundström, M. (Principal investigator)
01/10/2018 → 30/09/2021
Project: Academy of Finland: Other research funding
Equipment
-
Raw Materials Research Infrastructure
Karppinen, M. (Manager)
School of Chemical EngineeringFacility/equipment: Facility