Graphite exploration company,
Canada Carbon Inc. has reported the first in a series of
laboratory results from its vein graphite Miller property, in
Quebec, which shows the potential for new material to enter the
Tests by Evans Analytical Group
(EAG) on the crystallinity of the graphite and by SGS Lakefield
on the purity have shown the potential for the product to enter
the nuclear industry, with the company already holding meetings
with federal government officials.
EAG said the crystalline quality of
the graphite was better than any other industrial
graphite sample it has analysed to date.
Following our earlier
metallurgical testing at SGS Lakefield, which yielded graphite
as pure as could be determined by their analytical method, a
sample of that same material was shown to be of nuclear-grade
purity (...), said Canada Carbon CEO, Bruce Duncan.
We were able to show that
brief thermal upgrading could remove more than 90% of the
already very low contaminant burden. And now, we have clear
scientific evidence of the high order crystallinity of our
Miller hydrothermal graphite, he added.
Bench-scale tests to examine the
dispersion behaviour of the Miller graphite in carbon
disulphide (CS2) saw the sample partially exfoliate,
highlighting its suitability for the graphene market.
Since receiving these results,
Canada Carbon management has met with a number of federal
government officials from various agencies to
discuss the first domestic production of nuclear and military
grade graphite in recent history.
At present, high purity vein
graphite from Sri Lanka is the major source of material used by
the nuclear industry.
Further meetings with federal
government officials are planned, the company confirmed.
Canada Carbons Miller
graphite property is located in Grenville, Quebec, and has in
the past produced both graphite and mica.
The size of the deposit is unknown
but it is thought that around 25 cars of lump graphite was
shipped from the deposit in the 1900s, yielding 32 tonnes of
A 2013 sampling programme
identified grades as high as 80.1% C and assessed the visible
graphite deposit through a series of new samples taken directly
along and into the vein at a depth of approximately
Canada Carbon stated that the
flotation of the Miller graphite sample prior to purification
achieves better than 99% C.
The property covers 94km2 and is located 80km
west of Montreal. Main roads connect up to 800 metres away from
the deposit and travel all around the property.
Nuclear grade graphite
Both synthetic graphite and
natural vein graphite have commonly been used in the nuclear
industry in traditional reactors. This has provided the
graphite industry with a niche but high value
New generation designs
feature pebble shells - nuclear fuel coated with silicon
carbide, natural, synthetic and recycled graphite layers that
moderate the reaction speed - which carry nuclear fuel
into the reactor. These pebble-bed reactors could use
significantly more graphite than todays industry and
could provide future, high purity suppliers with a significant