This report describes the proposed recovery methods, metallurgical testwork, and processing design for the Frankfield Gold Project as presented in the November 2011 preliminary economic assessment.
Report context
The Frankfield East recovery methods summary is drawn from the preliminary economic assessment for the Frankfield Gold Project, located in Tully Township, north-eastern Ontario. The effective date of the report was November 12, 2011, with a signing date of February 22, 2012. The report was prepared for Gowest Gold Ltd. This article consolidates the mineral processing and metallurgical testing information from Sections 13 and 17 of that technical report.
Processing route
Crushing and screening
The proposed processing route commences with an underground mine feeding a crushing and screening circuit. The report specifies a crushing and screening stage as the first step in the recovery process, with material sourced from the underground operation. The design of this circuit is presented at a preliminary level consistent with the study classification.
Processing plant
Following crushing and screening, the ore is directed to a processing plant. The plant design is described at a preliminary economic assessment level, meaning that detailed engineering has not been completed. The report does not provide specific equipment lists, flow sheet diagrams, or mass balances for the plant.
Key reported parameters
The following table summarizes the reported processing parameters from the original document, distinguishing between testwork results, proposed design criteria, and general study-level information. No economic or production performance data were included.
| Parameter | Value | Unit | Basis |
|---|---|---|---|
| Metallurgical testwork (2008) | Reported | , | Historical testwork |
| Metallurgical testwork (2010/11) | Reported | , | Current testwork |
| Crushing and screening | Included in flow sheet | , | Proposed design |
| Processing plant | Included in flow sheet | , | Proposed design |
Project website: https://www.geologyontario.mndm.gov.on.ca/mndmfiles/mdi/data/records/MDI42A11NE00007.html
Technical qualifications
The original report notes that the processing description is provided at a preliminary economic assessment level of confidence. The metallurgical testwork sections (13.1 and 13.2) are described without presenting validated process designs. The report does not state that the recovery methods have been proven at pilot scale or commercial operation, and the proposed plant design relies on testwork programs that are summarized but not detailed in this excerpt.
The recovery methods section (17) of the technical report includes only brief headings for the underground mine, crushing and screening, and processing plant, with no additional design parameters or performance specifications provided in the available text.
Source: Report title and date, Sections 13 and 17 of the original document.
