RE:News OutThe metallurgy test results are very good. The zinc recoveries and grade especially. Any "unanswered" questions about met test on the deposit has been anwered - with a very definitive "positve" response.
And it is a "clean", marketable concentrate. No negative elements/penalties.
Exciting stuff.
5 to 1 Zn to Pb ratio....in other words -- this truly is a ZINC deposit.
CANADA ZINC METALS ANNOUNCES METALLURGICAL RESULTS FROM THE CARDIAC CREEK DEPOSIT
Canada Zinc Metals Corp. is pleased to announce results from new metallurgical test data on the 2017 drill core from its 100-per-cent-owned zinc-lead-silver Cardiac Creek deposit located on the Akie property in northeastern British Columbia.
Highlights:
- Flotation testing on the global composite indicated that a conventional reagent scheme produced clean, marketable concentrates.
- Zinc concentrate: Zinc was 89 per cent recovered into a concentrate grading 52.4 per cent.
- Lead concentrate: Lead was 46 per cent recovered into a concentrate grading 45 per cent.
- Saleable concentrates can be produced for both Zn and Pb.
- No potential impurity or penalty elements were identified in the concentrates.
- DMS (dense media separation) was very efficient at rejecting barren gangue and improving recovery of lead and zinc; average global composite rejection was 25 per cent of the feed mass.
- The global composite had a bond ball mill work index value of 16.9 kilowatt-hours/tonne, which would be considered moderately hard but well within conventional milling practices.
Peeyush Varshney, president and chief executive officer, commented: "The metallurgical results presented here continue to demonstrate the significant value of the Cardiac Creek deposit. We are especially pleased with the performance of the zinc recovery and grade. The inherent value of the Cardiac Creek deposit is largely driven by the zinc, as the contained zinc-to-lead ratio of the deposit is greater than 5:1. This work also demonstrated using DMS and conventional milling and flotation techniques can produce clean, saleable concentrates for both zinc and lead with no penalty elements. We recognize this is an iterative process and we fully expect additional metallurgical test results will be refined as the project advances."
Kelly McLeod, PEng, of JDS Energy and Mining Inc. of Vancouver, B.C., commented: "Testwork indicates the Cardiac Creek mineralization can be treated using dense media separation (DMS) and sequential flotation to produce saleable lead and zinc concentrates at a target primary grind size of 80 per cent passing 56 microns. Dense media separation was found to efficiently reject waste material with minimal metal losses and was incorporated in the flowsheet. Based on the global sample tested the locked-cycle test results produced a lead concentrate with a grade of 45 per cent and recovery of 46 per cent and a zinc concentrate with a grade of 52 per cent and recovery of 89 per cent. From the minor element analysis of the locked-cycle test lead and zinc concentrates, no deleterious elements were present in concentrations that would incur penalties from the smelters."