Usine pilote de traitement de latérite cobalt-nickel de 1500 TPD en Ouganda

Préparation et valorisation des minerais :

• Écrasement et Lavage : Two-stage crushing and attrition scrubbing to break down clayey material and liberate fines.
• Classification par taille et désagrégation : Hydrocyclones and vibrating screens remove fine, low-grade silts and clays to upgrade the feed to the leaching circuit.

Décantation Contre-Courant (DCC) et Purification de Solution :

• Équipement : Multi-stage thickener series.
• Fonction : Separates the pregnant leach solution (PLS) from residual solids (leach residue).

Gestion des résidus et des stériles :

• Équipement : Paste thickener, filter press, lime dosing system.
• Fonction : Neutralizes and conditions leach residue for safe, dry-stack disposal.

Adaptable to Variable Feed: The process flow and equipment are designed to handle the natural variability in Ugandan laterite ore types (limonite vs. saprolite ratio).

Data-Driven Design: The pilot plant is fully instrumented to collect comprehensive metallurgical, operational, and economic data essential for bankable feasibility studies and ESG reporting.

Lixiviation acide à haute pression (HPAL) – Système pilote :

• Équipement : Titanium-clad autoclaves, acid pre-heaters, and flash tanks.
• Fonction : Leaches nickel and cobalt from upgraded laterite ore using sulfuric acid under high temperature and pressure.

Récupération et Précipitation des Métaux :

• Équipement : Reactors, neutralization tanks, and filters.
• Fonction : Purifies the PLS (removes iron, aluminum) and precipitates Nickel and Cobalt as a high-grade Mixed Hydroxide Precipitate (MHP) using limestone slurry and magnesia.

Modular HPAL Pilot Unit: A compact, skid-mounted HPAL system designed to generate accurate scale-up data, process kinetics, and acid consumption rates for a future full-scale commercial plant.