Magnesium extraction from serpentine for carbon capture and storage

Authors

  • Muhammad Hassaan Saleem University of Engineering and Technology, Lahore, Pakistan
  • Muhammad Imran Rashid University of Engineering and Technology, Lahore, Pakistan
  • Shahryar Ahmad Khan University of Engineering and Technology, Lahore, Pakistan
  • Muhammad Waleed University of Engineering and Technology, Lahore, Pakistan
  • Muhammad Umar Shahzad University of Engineering and Technology, Lahore, Pakistan

DOI:

https://doi.org/10.54693/piche.05226

Abstract

This study aims to enhance availability of feedstock for mineral carbonation (MC) and evaluate viability of lizardite found in Pakistan as lizardite has a high reactivity compared to other ultramafic rocks. Leaching experiments were conducted to extract magnesium from heat-activated lizardite. Sulfuric acid (2% solution), hydrochloric acid (2% solution), and nitric acid (2% solution) were used in leaching experiments. The results showed that 71.8%, 65.2%, and 59% magnesium were extracted using H2SO4, HCl, and HNO3 acids, respectively. Mg extraction was highest in H2SO4 dissolution as compared to HCl and HNO3 dissolution. The leaching process was conducted at 25°C with 6 grams of solids using 2% acid solution for 5 hours. Similarly, silicon and iron were also extracted from heat activated lizardite. The findings suggest that lizardite can be a promising raw material for MC, though further studies on reaction kinetics and scaling potential are necessary.

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Published

2025-03-20

How to Cite

Saleem, M. H., Muhammad Imran Rashid, Khan, S. A., Waleed, M., & Shahzad, M. U. (2025). Magnesium extraction from serpentine for carbon capture and storage. Journal of the Pakistan Institute of Chemical Engineers, 52(2). https://doi.org/10.54693/piche.05226

Issue

Vol. 52 No. 2 (2024): Journal of the Pakistan Institute of Chemical Engineers

Section

Articles

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