Our Vale facility is the world’s third-largest diatomaceous earth (DE) facility. The two kilns at Vale can produce calcined and flux-calcined DE for use as filter aids, functional additives and low iron brewing grades of filter aids. It has an annual capacity of approximately 120,000 tons and uses diatomaceous earth ore from the open-pit Celatom mine, natural gas, electricity and soda ash.
The facility was originally commissioned in 1985, with the second kiln added in 1997. The Vale facility became a part of U.S. Silica during the 2018 acquisition of EP Minerals.