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...

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