Diatomite deposits: potential in Vietnam
Published: Monday, 22 July 2013
Diatomite is found in abundance in several regions of Vietnam; Dr Tran Kim Phuong, of the Vietnam Institute of Geosciences and Mineral Resources explores its industrial importance and the improvements that have been made by filter-aided powder processing.
Diatomite consists predominantly of microscopic siliceous
spines of diatomeae algae, although other silica-secreting
organisms can sometimes be found. It resembles chalk or clay,
but mainly contains silica and between 3-10% water. It is
friable, porous and floats on water when dry, while its
absorption rate means it can carry between...