CANADA CARBON COMPLETE FIRST PHASE OF A BULK SAMPLE PROGRAM ON ITS ASBURY GRAPHITE PROJECT

Canada Carbon Inc.
Canada Carbon Inc.

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Toronto, ON, Canada, Aug. 09, 2024 (GLOBE NEWSWIRE) -- Canada Carbon Inc. (the “Company”) (TSX-V:CCB), (FF:U7N1) reports that it has completed the first phase of a Bulk Sample Program for its 100% owned Asbury Graphite Project located 80 kilometers (“km”) NNE of Gatineau, near Notre-Dame-du-Laus, Québec. Working with SGS Lakefield, the Company completed work in the following critical areas:

  • Head assays

  • Bond Ball Work Index Analysis

  • Two Flotation Tests (F01 and F02)

Head Assays
Three samples were received: BK1 – high grade drill core, BK2 – low grade drill core, and BK3 – outcrop. These samples were prepared for testing, and a composite of the two drill core samples (BK1 and BK2) was prepared and named Core Comp.

Carbon speciation analyses of these samples shows total carbon ranging from 1.71% to 7.60% from low to high grade drill core, and a very high carbon total concentration of 18.5% in the outcrop sample. In all samples, carbon occurs as both graphitic carbon (C(g)) as well as in carbonate (CO3) minerals. In this flotation program, CCB will evaluate the recovery of graphitic carbon as opposed to total carbon. Any carbonate concentration is expected to be flushed to our tailings products.

Bond Ball Work Index Analysis
Bond Ball Work Index testing was conducted on the three samples, BK1, BK2 and BK3 which produced similar work indices ranging from 14.1 (BK2) to 14.6 (BK1). In comparison with SGS’s database of thousands of ore types, shown in the graph below, the Asbury samples fall in the median range of hardness percentile, ranging from 47.4% to 53.3%.

Rougher Floatation Tests
Two rougher flotation tests were conducted on the low grade BK2 composite.

  • F01 applied an MF2 style flowsheet, where a flash flotation stage was conducted on the crushed ore producing flash rougher concentrates. The flash rougher tailings were ground and a rougher concentrate produced.

  • F02 applied a traditional flowsheet where the crushed ore was ground in its entirety and rougher concentrates were collected.

Results were promising even with the low-grade sample, with 92.4% and 92.3% graphitic carbon recovery in F01 and F02, respectively. In particular, the F01 first flash concentrate gave a very high grade of 70.3% C(t) at 57.3% recovery of graphitic carbon. The benefits of the MF2 flowsheet are a reduction in required grinding power as well as the potential for preservation of coarse-flake graphite by not grinding the entire sample.

The next step will be to optimize the MF2 flowsheet using the Core Composite. The Company and SGS aim to complete the Bulk Sample Analysis within the next six weeks followed by extensive lab testing of Asbury concentrate for a variety of industry verticals.