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Green Chemistry

Travertine raises $8.5 million to reuse mining waste

by Alex Scott
July 11, 2024 | A version of this story appeared in Volume 102, Issue 21
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Travertine Technologies, a Colorado-based firm with an electrochemical process for turning carbon dioxide and sulfate-based mining waste into sulfuric acid and hydrogen, has raised $8.5 million in funding. Investors include the building materials company Holcim and the venture capital firm Clean Energy Ventures. One of C&EN’s 10 Start-Ups to Watch in 2022, Travertine was started by Laura Lammers, a University of California, Berkeley, geochemist.

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