Planta Piloto de Processamento de Laterita de Cobalto-Níquel de 1500 TPD em Uganda

Preparação e Beneficiamento de Minério:

• Moagem e Lavagem: Two-stage crushing and attrition scrubbing to break down clayey material and liberate fines.
• Classificação de Tamanho e Deslamagem: Hydrocyclones and vibrating screens remove fine, low-grade silts and clays to upgrade the feed to the leaching circuit.

Decantação Contracorrente (CCD) e Purificação de Soluções:

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

Gestão de Rejeitos e Resíduos:

• Equipamentos: Paste thickener, filter press, lime dosing system.
• Função: 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.

Lixiviação Ácida de Alta Pressão (HPAL) – Sistema Piloto:

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

Recuperação e Precipitação de Metais:

• Equipamentos: Reactors, neutralization tanks, and filters.
• Função: 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.