Purification

Gold Processing Congo

Investor benefits

Value Creation

Framework

Quality Assurance

Gold Refining & Purification

Goma Core Mines delivers advanced mineral processing and gold purification services in the Democratic Republic of Congo (DRC), converting raw ore into high purity, export ready gold. Our integrated approach combines efficient recovery systems, controlled refining techniques, and strict quality assurance protocols ensuring consistent output, verified purity, and strong returns for investors and international buyers.

 Stage 1: Mineral Processing (Ore Preparation & Recovery)

The first phase focuses on extracting gold from raw ore through structured, high-efficiency processes designed to maximize recovery rates.

 Crushing & Grinding

Raw ore is mechanically crushed and ground into fine particles to liberate gold from surrounding rock material.

  • Improves gold accessibility for downstream recovery
  • Optimizes processing efficiency and throughput

 Gravity Separation & Concentration

We apply gravity-based methods to separate gold from lighter materials using its natural density.

  • Concentrates gold-bearing material
  • Reduces waste and increases recovery yield
  • Minimizes chemical usage in early stages

 Gold Recovery Systems

Depending on ore characteristics, we apply appropriate recovery techniques:

  • Gravity recovery systems (sluices, shaking tables)
  • Controlled chemical-assisted recovery (where applicable)
  • Tailings reprocessing to recover residual gold
    • Produces gold dore bars
    • Removes base metals and unwanted materials
    • Prepares gold for final purification

 

Stage 2: Smelting & Purification

Once concentrated, gold is refined into higher purity through controlled thermal and chemical processes. Gold concentrates are heated at high temperatures to separate metals and impurities. Produces gold dore bars, Removes base metals and unwanted materials, Prepares gold for final purification, Advanced Purification Further refining ensures gold meets international market standards. Removal of remaining impurities Achieving purity levels of 99.5% and above Preparation for global trade and refinery acceptance.

Stage 3: Assay Testing & Quality Verification Every batch of processed gold undergoes rigorous testing to confirm purity, weight, and composition. Quality Control Measures: Fire assay and laboratory testing Spectrometry analysis for precise composition Independent verification (where required) Batch tracking and traceability systems Result: Investors and buyers receive fully verified, high-quality gold that meets international standards. Stage 4: Final Preparation & Export Readiness After purification and verification, gold is securely prepared for storage, sale, or export. Casting into standardized dore bars Secure packaging and labeling Documentation for export and trade Integration into logistics and delivery systems