08:48:45 EDT Fri 29 Mar 2024
Enter Symbol
or Name
USA
CA



CB Gold Inc
Symbol CBJ
Shares Issued 159,086,007
Close 2014-07-29 C$ 0.08
Market Cap C$ 12,726,881
Recent Sedar Documents

CB Gold starts processing testwork on Vetas samples

2014-07-30 11:10 ET - News Release

Mr. Fabio Capponi reports

CB GOLD INC. ANNOUNCES COMMENCEMENT OF GEKKO SYSTEMS' GRAVITY PRE-CONCENTRATION AMENABILITY TESTWORK FOR ITS VETAS GOLD PROJECT ORE SAMPLES

CB Gold Inc. has commenced testwork to determine the amenability of the CB Gold Vetas ore samples to processing via gravity preconcentration followed by intensive leaching. The scope of this testwork consists of:

  • A cyclic vertical shaft impactor (VSI) amenability test will be performed as part of the sample preparation. This will help determine if the sample is amenable to crushing with a VSI, which is typically used in modular plants.
  • A two-stage continuous gravity recovery (CGR) test determines the gravity gold recovery that can be achieved followed by flotation of the gravity tailing and an intensive leaching test on the combined gravity and flotation concentrate.

The processing testwork will be conducted on 120-kilogram samples selected from the drill core and available mines at the Vetas gold project. The testwork is being undertaken by Gekko Systems Pty. Ltd., Ballarat, Australia, and will take approximately six to eight weeks to complete. The primary focus of the program is to test the performance of the ore in a Gekko Systems flowsheet.

This processing testwork follows on from the results of the preliminary and further metallurgical testwork on Aug. 19, 2013, and on May 22, 2014, respectively.

The preliminary results indicated:

  • Strong recoveries of above 94.0 per cent for traditional gravity concentration and cyanide leach;
  • Combined gravity/flotation concentrate recoveries of up to 96.1 per cent;
  • These recoveries for both processes occurred at relatively coarse grind sizes of P80 150 to 100 microns;
  • Maximum cyanide leach recoveries occurred in just over 24 hours residence;
  • Excellent recoveries in the gravity circuit of up to 84 per cent.

The results from the 2014 testing indicate:

  • Combined gravity/flotation concentrate recoveries of up to 99.8 per cent;
  • Recoveries of up to above 91.4 per cent for traditional gravity gold recovery;
  • Strong recoveries occurred at relatively coarse grind sizes of P80 100 microns;
  • The Vetas samples were not found to be sensitive to grind size with respect to metal recoveries;
  • Sulphur concentration was found to be proportional to overall metal recovery.

For further details regarding the preliminary and further metallurgical testwork results, please visit the company's website.

Fabio Capponi, chief executive officer, commented: "These processing tests represent CB Gold's additional step towards the future development of its Vetas gold project. The company will advance with additional testwork as may be required by the different processing options."

© 2024 Canjex Publishing Ltd. All rights reserved.