Abstract
The present invention is broadly concerned with mineralization methods that assist in permanent carbon storage. The methods provide a storage mechanism for oxalic acid generated by existing or future-developed carbon capture and conversion methods that convert CO2 to oxalic acid. That oxalic acid can be injected into a subsurface rock formation containing non-carbonate rock to form oxalates or oxalate hydrates. Alternatively, oxalic acid can be mixed with mine tailings, well drilling dirt, crushed rocks, etc., that contain desired non-carbonate rock minerals, to promote mineralization.
Recommended Citation
Ma, Hongyan and Liao, Wenyu, "Large-Scale Carbon-Mineralization Through Oxalatization" (2025). Patents. 49.
https://scholarsmine.mst.edu/patents/49
Department(s)
Civil, Architectural and Environmental Engineering
Patent Application Number
18/681,569
Patent Number
US 12,371,983 B2
Document Type
Patent
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2026 The Curators of the University of Missouri, All rights reserved
Additional Rights Information
Assignee: The Curators of the University of Missouri, Columbia, Missouri (US)
Publication Date
29 July, 2025
Comments
Docket Number: 21MST027-UTL
Filing Date: 02/06/2024
Issue Date: 07/29/2025, FY26
References Cited
U.S. Patent Documents:
4,408,664 A * 10/1983 Santee…............E21B 43/164 166/402
8,899,331 B2 12/2014 Burnham et al.
2008/0296146 A1 12/2008 Toulhoat et al.
2009/0301352 A1* 12/2009 Constantz...............B01D 53/62 106/668
Prior Publication Data:
US 2024/0368975 A1 November 7, 2024