didymium


Also found in: Dictionary, Wikipedia.

didymium

[dī′dim·ē·əm]
(chemistry)
A mixture of the rare-earth elements praeseodymium and neodymium. Abbreviated Di.
References in periodicals archive ?
A high purity didymium oxide (a neodymium/praseodymium oxide mix) product is scheduled in June, to be followed by lanthanum oxide and finally a cerium oxide product.
The growth in Molycorp Mountain Pass gross sales was driven both by higher realized prices and by higher didymium and lanthanum product sales volumes, and was offset by lower cerium sales volume.
We continue to produce and ship cerium, lanthanum, didymium and neodymium as well as all the other elements in the lanthanide series," he said.
The facility's main focus will be on the production of rare earth oxides and metals -- including didymium metal, a critical component in the manufacture of neodymium-iron-boron permanent rare earth magnets -- from feed stocks supplied by Molycorp's Mountain Pass, California rare earth mine and processing facility.
The new company will begin constructing a plant next month for the production of didymium and dysprosium metals.
The new plant in Vietnam will produce didymium and dysprosium metals through a separation/refining process and an electrolytic process.
commenced rare earth separations operations using lanthanum concentrates from existing stockpiles to produce didymium (a combination of neodymium and praseodymium) and lanthanum products.
If the definitive agreements contemplated by the memorandum of understanding are executed, the Company expects to provide Sumitomo with 1,500 to 1,750 metric tons per year of cerium and lanthanum-based products, and 250 metric tons per year of didymium oxide for a period ending five years after the completion of our initial modernization and expansion plan.
Molycorp is expected to provide Sumitomo with approximately 2,500 metric tons per year of cerium- and lanthanum-based products and 250 metric tons of didymium oxide (a combination of neodymium and praseodymium) per year from its current production facility at Mountain Pass, California.