PROCESSING
RAW ORE INTO VIRGINIA KYANITE™:
Once
inside the processing plant, the ore goes through many processes
including a wet rod mill to reduce the particle size to about
one millimeter and finer, a hydrocyclone to remove clay matter
from the slurry, a hydrosizer for classification, and spiral
separators until the beneficiated materials is 90% to 92% kyanite.
Gravity is used to dewater the wet concentrate into a semi-dry
material before dried and roasted to convert most of the iron
oxide impurities to a form that is suitable for magnetic separation.
The resulting 35 mesh product is then ground in this ball mill
to obtain various finer sizes.
Processing Virginia Kyanite™ into
Virginia Mullite:
The
35 mesh Kyanite is converted to Mullite in a rotary kiln where
the temperature of sintering is in excess of 1450° C. and then
ground in ball mills to generate other, finer sizes.
Our state-of-the art operation can produce more than one hundred
fifty thousand tons of commercial grade Kyanite concentrate every
year. The plant capacity can easily be increased if necessary
very quickly. We have the capacity to store over fifty thousand
tons of Kyanite and Mullite 35 mesh in bulk form.
Mining
and Processing video clip (14.1 mb) |