West Cache Gold Property — 2021 Technical Report

Company Galleon Gold Corp.
Date 2021
Region Timmins, Ontario, Canada
Commodities Gold
Mine Type Underground
Throughput 2,400 tpd
Status Development

Executive Summary

This Pre-Feasibility Study (PEA) for the West Cache Gold Property outlines metallurgical testwork and processing options for gold recovery. Based on recent testwork, two primary flowsheets were evaluated: a dedicated gravity-float-leach option and toll processing at existing regional facilities. The preferred flowsheet involves gravity concentration of free gold using centrifuges and tabling, followed by flotation of a gold-sulphide concentrate and cyanidation of the reground float concentrate. This option achieved combined recoveries averaging 97% and produces cyanide-free flotation tailings suitable for mine backfill.

Toll processing options were also analyzed, with Option A (4,500 tpd capacity, 25 km haulage) deemed more attractive than Option B (2,000 tpd capacity, 60 km haulage). Option A includes gravity concentration and cyanide leach with CIP recovery, achieving 96.9% recovery on recent feed. The study assumes 2,400 tpd of West Cache material would be processed via toll processing, with a fraction of tailings back-hauled for backfill. Sorting considerations using X-ray transmission (XRT) were discussed but not tested, pending further mineralogical analysis to determine free gold deportment.

Processing Options

  • Gravity Concentration:: Centrifuges and tabling for free gold recovery.
  • Flotation:: Gold-sulphide concentrate recovery.
  • Leaching:: Cyanide leach with Carbon-in-Pulp (CIP) recovery.
  • Grinding:: P80 approximately 60 µm.
  • Sorting:: XRT sorting considered for waste rejection.

Reports

  • entities/WestCache_Mine
  • entities/GalleonGold_Corp

Website: https://galleongold.com/projects/west-cache-gold-project/

Report Date: 2021

Region: Timmins, Ontario, Canada

Project Status: Development

Commodity: Gold

Throughput: 2,400 tpd

Mine Life: 

Mine Type: Underground

Ore type: Sulphide/Free Gold

Mineral processing basics

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