The Critical Materials Institute, a U.S. Department of Energy Innovation Hub led by the Ames Laboratory, has created a new chemical process that makes use of the widely available rare-Earth-Metal'>earth metal cerium to improve the manufacture of nylon.
"After a lot of trials, we managed to find a reaction that works very well at room temperature and ambient pressure," said CMI and Ames Laboratory scientist Igor Slowing. "That's a huge advantage cost-wise. It's more energy efficient, and requires much less hydrogen."
"The research group focused on three or four different catalytic reactions used in high production volume chemicals, including this one for producing a precursor to nylon, which as an industry has enormous applications," said Slowing, who is also an adjunct assistant professor of chemistry at Iowa State University.
"We are the only CMI scientists looking at catalysis, and so we are looking at this problem from a different angle. While other scientists are trying to find ways to use less of the least abundant rare-earths, we are trying to find ways to use more of the most abundant ones."
But rare-earth metals like cerium, which is as abundant as copper, are primary products of mining for other, more valuable rare-earth elements. With minimal demand for these abundant rare earths, they are stockpiled. Finding widely marketable uses for these stock-piled materials makes the best use of all mining resources, and improves the economic feasibility of mining overall.
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