Metal extraction and indirect mineral carbonation of waste cement material using ammonium salt solutions

Hwanju Jo; So Hee Park; Young Nam Jang; Soo Chun Chae; Pyeong Koo Lee; Ho Young Jo

doi:10.1016/j.cej.2014.05.129

Metal extraction and indirect mineral carbonation of waste cement material using ammonium salt solutions

Hwanju Jo, So Hee Park, Young Nam Jang, Soo Chun Chae, Pyeong Koo Lee, Ho Young Jo

Research output: Contribution to journal › Article › peer-review

60 Citations (Scopus)

Abstract

The effects of different ammonium salts on the cation extraction and mineral carbonation of waste cement were evaluated using four different ammonium salt solutions: CH₃COONH₄, NH₄Cl, NH₄NO₃, and (NH₄)₂SO₄. Extraction and carbonation tests were conducted using waste cement powder as the raw material under ambient temperature and pressure conditions at a solid to liquid ratio of 50g/L with two different concentrations of ammonium salt solution (0.5M and 1.0M). At higher concentration (1M), the Ca extraction efficiency (~70%) was higher in the CH₃COONH₄ and NH₄NO₃ solutions, but lower in the NH₄Cl (32%) and (NH₄)₂SO₄ solutions (5%). The Ca selectivity (~98%) was higher in the CH₃COONH₄, NH₄NO₃, and NH₄Cl solutions, but lower in the (NH₄)₂SO₄ solution (90%). The carbonation efficiency was comparable to the extraction efficiency. The carbonation efficiency with the CH₃COONH₄ and NH₄NO₃ solutions was higher. Regardless of the type of ammonium salt, high purity vaterite was precipitated after CO₂ injection.

Original language	English
Pages (from-to)	313-323
Number of pages	11
Journal	Chemical Engineering Journal
Volume	254
DOIs	https://doi.org/10.1016/j.cej.2014.05.129
Publication status	Published - 2014 Oct 15

Bibliographical note

Funding Information:
This work was supported by the Basic Research Project of the Korea Institute of Geoscience and Mineral Resources (KIGAM) funded by the Ministry of Science, ICT & Future Planning.

Copyright:
Copyright 2014 Elsevier B.V., All rights reserved.

Keywords

Ammonium salts
Calcium carbonate
Mineral carbonation
Vaterite
Waste cement

ASJC Scopus subject areas

General Chemistry
Environmental Chemistry
General Chemical Engineering
Industrial and Manufacturing Engineering

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10.1016/j.cej.2014.05.129

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title = "Metal extraction and indirect mineral carbonation of waste cement material using ammonium salt solutions",

abstract = "The effects of different ammonium salts on the cation extraction and mineral carbonation of waste cement were evaluated using four different ammonium salt solutions: CH3COONH4, NH4Cl, NH4NO3, and (NH4)2SO4. Extraction and carbonation tests were conducted using waste cement powder as the raw material under ambient temperature and pressure conditions at a solid to liquid ratio of 50g/L with two different concentrations of ammonium salt solution (0.5M and 1.0M). At higher concentration (1M), the Ca extraction efficiency (~70%) was higher in the CH3COONH4 and NH4NO3 solutions, but lower in the NH4Cl (32%) and (NH4)2SO4 solutions (5%). The Ca selectivity (~98%) was higher in the CH3COONH4, NH4NO3, and NH4Cl solutions, but lower in the (NH4)2SO4 solution (90%). The carbonation efficiency was comparable to the extraction efficiency. The carbonation efficiency with the CH3COONH4 and NH4NO3 solutions was higher. Regardless of the type of ammonium salt, high purity vaterite was precipitated after CO2 injection.",

keywords = "Ammonium salts, Calcium carbonate, Mineral carbonation, Vaterite, Waste cement",

author = "Hwanju Jo and Park, {So Hee} and Jang, {Young Nam} and Chae, {Soo Chun} and Lee, {Pyeong Koo} and Jo, {Ho Young}",

note = "Funding Information: This work was supported by the Basic Research Project of the Korea Institute of Geoscience and Mineral Resources (KIGAM) funded by the Ministry of Science, ICT & Future Planning. Copyright: Copyright 2014 Elsevier B.V., All rights reserved.",

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doi = "10.1016/j.cej.2014.05.129",

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AU - Jo, Hwanju

AU - Park, So Hee

AU - Jang, Young Nam

AU - Chae, Soo Chun

AU - Lee, Pyeong Koo

AU - Jo, Ho Young

N1 - Funding Information: This work was supported by the Basic Research Project of the Korea Institute of Geoscience and Mineral Resources (KIGAM) funded by the Ministry of Science, ICT & Future Planning. Copyright: Copyright 2014 Elsevier B.V., All rights reserved.

PY - 2014/10/15

Y1 - 2014/10/15

N2 - The effects of different ammonium salts on the cation extraction and mineral carbonation of waste cement were evaluated using four different ammonium salt solutions: CH3COONH4, NH4Cl, NH4NO3, and (NH4)2SO4. Extraction and carbonation tests were conducted using waste cement powder as the raw material under ambient temperature and pressure conditions at a solid to liquid ratio of 50g/L with two different concentrations of ammonium salt solution (0.5M and 1.0M). At higher concentration (1M), the Ca extraction efficiency (~70%) was higher in the CH3COONH4 and NH4NO3 solutions, but lower in the NH4Cl (32%) and (NH4)2SO4 solutions (5%). The Ca selectivity (~98%) was higher in the CH3COONH4, NH4NO3, and NH4Cl solutions, but lower in the (NH4)2SO4 solution (90%). The carbonation efficiency was comparable to the extraction efficiency. The carbonation efficiency with the CH3COONH4 and NH4NO3 solutions was higher. Regardless of the type of ammonium salt, high purity vaterite was precipitated after CO2 injection.

AB - The effects of different ammonium salts on the cation extraction and mineral carbonation of waste cement were evaluated using four different ammonium salt solutions: CH3COONH4, NH4Cl, NH4NO3, and (NH4)2SO4. Extraction and carbonation tests were conducted using waste cement powder as the raw material under ambient temperature and pressure conditions at a solid to liquid ratio of 50g/L with two different concentrations of ammonium salt solution (0.5M and 1.0M). At higher concentration (1M), the Ca extraction efficiency (~70%) was higher in the CH3COONH4 and NH4NO3 solutions, but lower in the NH4Cl (32%) and (NH4)2SO4 solutions (5%). The Ca selectivity (~98%) was higher in the CH3COONH4, NH4NO3, and NH4Cl solutions, but lower in the (NH4)2SO4 solution (90%). The carbonation efficiency was comparable to the extraction efficiency. The carbonation efficiency with the CH3COONH4 and NH4NO3 solutions was higher. Regardless of the type of ammonium salt, high purity vaterite was precipitated after CO2 injection.

KW - Ammonium salts

KW - Calcium carbonate

KW - Mineral carbonation

KW - Vaterite

KW - Waste cement

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Metal extraction and indirect mineral carbonation of waste cement material using ammonium salt solutions

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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