Low grade gold mine boosts recovery with STEINERT sorting technology
Original announcement by globalminingreview on
- Company
- Navachab Gold Mine
- Ticker
- Unavailable
- Exchange
- Unavailable
- Region
- Namibia
- Primary commodity
- Gold
- Secondary commodities
- None reported
- Document categories
- Metallurgy, Other
- Extracted
- 2026-09-12 04:36:49 UTC
Analysis by Minestarters Atlas
Minestarters Atlas analysis
Summary
Navachab Gold Mine in Namibia has implemented STEINERT's next-generation dry sorting technology to upgrade its low-grade gold operations. The new sensor-based sorting system has doubled the ore grade and throughput while reducing operational costs to one-quarter of the previous dense media separation (DMS) method.
Reasoning: The document describes the successful implementation of sensor-based sorting technology to upgrade ore grade and throughput at an existing operation.
Positive factors
- doubling of ore grade through sorting
- reduction in operational costs to 1/4 of previous DMS process
- doubled throughput
- environmentally friendly dry sorting process
Facts used in scoring: 2
Classification and evidence
Mill Routeneutral
Processing via mill or concentrator (CIL, CIP, tank leach, flotation).
Why it applies: The sorting process is used to preconcentrate ore for downstream CIP (Carbon-in-Pulp) plant processing.
Evidence · text
“detect material falling below the CIP plant cut-off grade”
Gravity Routeneutral
Gravity separation forms a material part of the flowsheet.
Why it applies: the document describes a gravity route ("dense media separation")
Multi-Domain Testedpositive
Variability across ore domains (oxide, transition, fresh) has been addressed.
Why it applies: 2 distinct composites were tested
Extracted facts
Stored fact records: 2. Some facts used in scoring do not have a stored record.
Metallurgical Results (2)
sensor-based sortingNavachab Gold Mine · goldHistorical resultNeeds review: historical_restatementView all detailsHide details
Identity
- Project
- Navachab Gold Mine
- Commodity
- gold
- Region
- namibia
- Reported Region
- Namibia
Test Work
- Program Status
- optimization
- Test Type
- sensor-based sorting
- Processing Route
- dry, sensor-based sorting
- Sample
- low-grade stockpiles preconcentrated by STEINERT XSS T sorters
Lab
- Consultant
- STEINERT
Review
- Needs Review
- Yes
- Review Reason
- historical_restatement
- Historical
- Yes
- Historical Source Date
- 2016-01-01T00:00:00.000Z
Dates
- Event date
- 2026-01-13T00:00:00.000Z
Reasoning: Historical use of sorting technology has successfully processed significant tonnage of previously uneconomical ore.
Positive factors
- preconcentrated over 10 million t of low-grade stockpiles
Evidence · text
“Over the last decade, these sorters have preconcentrated over 10 million t of low-grade stockpiles”
multi-sensor sortingNavachab Gold Mine · goldView all detailsHide details
Identity
- Project
- Navachab Gold Mine
- Commodity
- gold
- Region
- namibia
- Reported Region
- Namibia
Test Work
- Program Status
- optimization
- Test Type
- multi-sensor sorting
- Processing Route
- dry, sensor-based sorting
- Sample
- Navachab ore response to multi-sensor sorting
Lab
- Consultant
- STEINERT
Review
- Needs Review
- No
- Historical
- No
Dates
- Event date
- 2026-01-13T00:00:00.000Z
Reasoning: The transition from single-sensor to multi-sensor sorting significantly improves economic parameters.
Positive factors
- doubling of current treatment capability
- doubling of ore grade
- 1/4 of the overall operational costs compared to DMS
Evidence · text
“dry, sensor-based sorting now runs at 1/4 of the overall operational costs, while doubling throughput”
How Atlas produces this analysis
Minestarters Atlas uses automated extraction to summarize mining announcements, identify reported measurements, and classify supporting evidence. Sentiment reflects the extracted narrative and classification rules; it is an interpretation, not a reported measurement. Evidence quotes and context are provided where available. Missing data, low-confidence results, and review flags indicate limitations. Check the original publisher announcement before relying on an interpretation.