Explore verified gold extraction flowsheet designs, turnkey CIP/CIL installations, high-pressure Zadra elution retrofits, and metallurgical recovery improvements delivered safely, on schedule, and on budget.
Engineered and constructed a full-scale Carbon-in-Leach plant replacing artisanal vat leaching. Delivered comprehensive mineral processing scope: primary jaw crushing, 1.8m × 3.6m overflow ball mill, closed-circuit hydrocyclones, 8 agitated CIL tanks, Zadra pressure elution, electrowinning cells, and induction smelting furnace.
Designed, fabricated, and commissioned an agitated Carbon-in-Pulp circuit to reprocess 1.25 g/t refractory legacy stamp-mill tailings. Integrated hydraulic monitor reclamation, ultra-fine regrinding, high-activity coconut shell carbon, automated lime dosing, and filter-press dry tailings stacking.
Engineered an advanced elution retrofit replacing an inefficient 48-hour atmospheric Anglo American (AARL) circuit with a rapid 12-hour high-temperature Pressure Zadra stripping plant (140°C, 450 kPa), complete with stainless electrowinning cells and a diesel-fired rotary reactivation kiln.
Turnkey engineering and mechanical erection of an agitated froth flotation plant for pyritic gold ores. Included rougher-scavenger-cleaner flotation bank, high-rate thickener with automated flocculant dosing, and membrane chamber filter press for dry tailings management.
Engineered, fabricated, and installed an industrial-scale 2.4m × 4.2m overflow discharge ball mill driven by a 315 kW motor, complete with rubber-lined slurry sump, dual variable-speed feed pumps, and a radial 6-way hydrocyclone cluster for sharp classification.
Following a comprehensive metallurgical plant audit, Green Ngoria engineered and erected a 12-meter diameter high-rate thickener with automated feedwell dilution and hydraulic rake lift, enabling efficient solid-liquid separation and recycling 40% of cyanide reagents.
Engineered an aggressive hard-rock crushing plant featuring a heavy-duty primary jaw crusher, secondary hydraulic cone crusher, double-deck inclined vibrating screen, overhead self-cleaning tramp iron magnet, and high-pressure dust mist suppression system.
Fabricated and commissioned a continuous horizontal rotary carbon reactivation kiln with 310-grade stainless steel retort operating at 650°C-750°C with steam activation, preceded by an acid-wash scaling column to strip foulants and restore gold adsorption kinetics.
Green Ngoria deploys dedicated metallurgists, mechanical fabricators, and commissioning engineers directly to mining operations throughout the region.
Hub for high-sulfide quartz vein deposits. Over 8 active CIL/CIP installations, including our dedicated Spares & Reagents Logistics Facility in Migori.
Archaean greenstone belt mining. Specialized in refractory tailings reprocessing, ultrafine regrinding, and dry-stack tailings filtration systems.
Major industrial gold corridor. Turnkey retrofits for high-efficiency pressure Zadra elution columns, thickening clarifiers, and rotary reactivation kilns.
Every project follows strict quality control gates, ISO-aligned mechanical fabrication, and rigorous metallurgical startup protocols.
Bottle-roll cyanide kinetics, diagnostic leach, Bond Work Index grindability, and diagnostic mineralogy to determine exact gold liberation.
Custom PFDs, P&IDs, mass balances, structural steel stress calculations, and 3D plant arrangement drawings tailored to site terrain.
Heavy tank rolling, agitator shaft balancing, polyurethane interstage screen assembly, and ASME-certified pressure elution column welding.
Reinforced equipment plinths, structural gantry erection, slurry piping reticulation, valve manifolds, and electrical motor control centers (MCC).
Dry mechanical run-in, water leak testing, slurry hydraulic balancing, automated reagent calibration, and safe hot cyanidation startup.
First gold bullion pour verification, operator standard operating procedure (SOP) training, and ongoing metallurgical warranty support.
Submit your ore sample data, plant throughput requirements, or tailings assay for an independent metallurgical flowsheet assessment and bankable feasibility review.
