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Minerals 2018, 8(4), 147; https://doi.org/10.3390/min8040147

Integrated Mineral Carbonation of Ultramafic Mine Deposits—A Review

1
Ministry of Education Key Laboratory of High Efficiency Mining and Safety for Metal Mines, School of Civil and Resource Engineering, University of Science and Technology Beijing, No. 30 Xueyuan Road, Haidian District, Beijing 100083, China
2
Australian Centre for Sustainable Mining Practices, School of Mining Engineering, University of New South Wales, Sydney, NSW 2052, Australia
3
Trent School of the Environment, Trent University, Peterborough, ON K9L 0G2, Canada
*
Authors to whom correspondence should be addressed.
Received: 15 March 2018 / Revised: 29 March 2018 / Accepted: 4 April 2018 / Published: 9 April 2018
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Abstract

Recently, integrated mineral carbonation for CO2 sequestration has received significant attention due to the high potential for commercialization towards mitigating climate change. This review compiles the work conducted by various researchers over the last few years on integrated mineral carbonation processes in the mining industry, which use ultramafic mine wastes as feedstock for mineral carbonation. Here, we introduce the basic concepts of mineral carbonation including a brief description of the process routes and pre-treatment techniques. We discuss the scope of integrated mineral carbonation process application, and critically review the integrated mineral carbonation process in the mining industry including modified passive carbonation techniques in tailing storage facilities, and ex-situ carbonation routes using fresh tailings. The focus of the discussions is the role of reaction condition on the carbonation efficiency of mine waste with various mineralogical compositions, and the benefits and drawbacks of each integrated mineral carbonation process. All discussions lead to suggestions for the technological improvement of integrated mineral carbonation. Finally, we review the techno-economic assessments on existing integrated mineral carbonation technologies. Research to date indicates that value-added by-products will play an important role in the commercialization of an integrated mineral carbonation process. View Full-Text
Keywords: CO2 sequestration; mineral carbonation; ultramafic tailings; mine waste CO2 sequestration; mineral carbonation; ultramafic tailings; mine waste
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Li, J.; Hitch, M.; Power, I.M.; Pan, Y. Integrated Mineral Carbonation of Ultramafic Mine Deposits—A Review. Minerals 2018, 8, 147.

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