Cyanide
Our Technologies to Treat Cyanide/SART
Gold recovery can become uneconomical when cyanide-soluble base metals such as copper and zinc are present in gold ore deposits. These metals form weak acid dissociable (WAD) complexes with the cyanide and preferentially competes for cyanide. The result is high cyanide consumption, poor gold doré purity and high concentrations of copper-cyanide complexes in tailings that require costly destruction.
SART
We offer the SART process to remove the metallurgical interference of cyanide-soluble metals and to efficiently recover and recycle cyanide in gold processing.
SART (sulphidication-acidification-recycling-thickening) breaks the base metal bond from the WAD complex and precipitates the metal as a commercial grade concentrate. The cyanide is regenerated as free cyanide and recycled to the gold extraction circuit. We have designed and constructed full-scale plants, provided process review and commissioning for a plant under construction, and carried out flowsheet development and testing programs for SART.
Case Studies
With extensive operational experience, we customize SART systems to suit site-specific conditions, ensuring reliable performance and long-term results.
Mastra
BQE Water trabajó con el propietario de la mina para diseñar, construir y poner en marcha una planta SART en un ajustado plazo de nueve meses, para que la mina de oro pudiera procesar su mineral y evitar el acopio de mineral de alta ley con mineralización de cobre.
Maricunga
Con el diseño de la planta SART ya en marcha, BQE Water fue contratada por el propietario de la mina para prestar servicios de revisión del proceso y puesta en marcha de una planta SART en una explotación minera de oro a cielo abierto con altas concentraciones de cobre en la lixiviación en pila.