Canada Carbon Inc. Begins Pilot-Scale Processing of Graphite Material from its Miller Graphite Property
Sep 11 14
Canada Carbon Inc. announced that it has begun pilot-scale processing of graphite material from its 100% owned Miller graphite property. The primary objectives of the pilot plant operation that commenced at SGS Canada (Lakefield) during the week of September 7th, 2014, are to generate larger quantities of graphite flotation concentrate for downstream evaluation, and to provide process data to facilitate future engineering studies. An initial 25 tonne composite was shipped to SGS Lakefield in mid-August 2014 for commissioning purposes. Wet commissioning of the pilot plant using the Miller flotation process developed by SGS commenced on September 7, 2014 and is expected to be completed within 5-7 operating days. Initial commissioning focused on the primary grinding and flotation circuit. This circuit aims to recover the majority of the graphite into a higher grade intermediate concentrate, which is then further upgraded in a cleaning circuit. Once mechanical and metallurgical commissioning is completed, the plant will be operated for up to 200 hours to generate several tonnes of graphite concentrate, and will also provide plant data to support the generation of process design criteria for a full-scale graphite mill.
Canada Carbon Provides Update on its Exploration Program
Aug 7 14
Canada Carbon Inc. announced that trenching over the VTEM E1 target Induced Polarization anomalies has revealed graphite mineralization in the southern area of the geophysics grid. The discoveries suggest a high potential for the extension of the conductor and chargeability anomalies beyond the original boundaries of the IP grid. The IP grid was extended to the northeast, northwest, and southeast, more than tripling the area of the survey, to now exceed the area of the original VTEM target. The second IP survey started on July 17, 2014 and was completed on July 22, 2014. The Company received geophysical maps and recommendations on July 29, 2014, and began a new trenching program on July 30, 2014 to verify the anomalies generated by the extended IP survey. The geological data generated from the trenching programs will be utilized, in conjunction with the IP responses, to select targets for a drill program which is expected to begin shortly. Following the first IP survey on the VTEM E1 anomaly, trenching and/or stripping was done over the four main IP anomalies to reveal the bedrock structures over the geophysical anomalies, ideally providing geological confirmation of the possible physical sources of the IP responses. Disseminated graphite was found in most of the exposures, and drilling will be necessary to find the anomalies sources. The most interesting results was provided by a trench over anomaly E1-6 on Line 0, where multiple graphite veins were found over a 1 metre width within a graphitic skarn. The skarn can be followed over the trench length of 15 m, extending towards the south-east, and beyond the geophysical grid. Twenty metres on-strike from the southeast extension of the skarn, and also outside of the initial IP grid, a former exploration pit was discovered which showed graphite vein mineralization. It does not appear as if any of this graphitic material was removed from the area, as the pit is surrounded by piles of graphite-containing blocks. Additionally, a 20 centimetre block of lump graphite was discovered south of the initial geophysical grid. In the immediate area of the block, a subcrop of marble, pegmatite and graphitic skarn was discovered, which is similar to the mineralization of the historic Miller Mine. IP anomaly E1-6, on Line 0, was modelled as lying at 20 to 30 m depth. For that reason, the bedrock graphite vein discoveries revealed by trenching there were somewhat unanticipated. These veins of graphite would strongly suggest that a graphite rich body is the source of the anomaly at depth. Because the modelled chargeability axis E1-6 crossed the entire 150 m width of the original IP grid, and remained strong at the boundaries, the company decided to extend the geophysical grid towards the NW and SE to gather further data on the open extensions of the targets. Additional survey lines were also placed at the NE extension of each previous IP line to better define the strong anomaly E1-8. Trenching is being carried out over the new anomalies to quickly find surface indicators that can be associated with the anomaly sources. The trenching program primarily targets extensions to anomalies E1-4, E1-6, E1-7 and E1-8 that are continuous over most of the grid area. On the southeast portion of the second IP survey, the E1-4 and E1-6 anomalies connect together to form a large anomaly that will be a prime target for drilling. Any graphite mineralization which is discovered will be subject to channel sampling and assaying. The Company is currently selecting collar locations for a Phase 1 drill program that will test the most significant anomalies generated by both of the IP surveys. A minimum of 400 m of drilling in 7 different drill holes has already been selected based on the IP and trenching results.
Canada Carbon Achieves Exceptional 99.7% C(t) Graphite Flotation Results Without Chemical Treatment
May 22 14
Canada Carbon Inc. provided the following update on the flotation concentration tests for its past-producing Miller Mine Graphite Property hydrothermal graphite mineralization, being conducted by SGS Canada Inc. ("SGS") at their facilities in Lakefield, Ontario. The following results indicate that SGS has developed a clearer understanding of the process optimization criteria, which will allow Canada Carbon to begin scaling up the design of the pilot-plant processing equipment for the previously reported 480-tonne bulk sample of the Miller Mine hydrothermal graphite. While Canada Carbon reported a substantial increase in the yield of the large graphite particles from the initial flotation optimization trial on May 1(st), 2014, the company now reports achieving a reproducible high yield of large (+65 mesh) graphite crystals at a grade of 99.7% C(t), with the application of the simple flotation and polishing techniques already commonly employed in the natural graphite industry.