| Company | Santacruz |
| Date | 2017-01-31 |
| Region | Zacatecas, Mexico |
| Commodities | Silver, Zinc, Lead, Gold |
Executive Summary
The 2017 Technical Report for the Veta Grande Project details the recovery methods employed at the Vetagrande Mineral Processing Facility. The facility utilizes traditional grind and flotation methods to recover separate lead and zinc concentrates, with significant silver recovery associated with the lead concentrate. Current milling capacity is 700 tpd, though the estimated current milling rate is approximately 425 tpd. The average head grade consists of 115 g/t Ag, 2.04% Zn, and 1.15% Pb.
The processing circuit includes a crushing plant located at the old Delores mine, currently operating at 18 tph with plans to increase to 80 tph. The grinding circuit features two primary ball mills and one secondary remolder ball mill, achieving 80% passing 200 mesh. Flotation involves specific conditioning with sodium cyanide and the use of Droper as a depressant. Concentrate handling involves thickening and filtering, with a lead thickener and filter press capable of 4,000 tpd capacity.
Reports
Website: https://miningdataonline.com/property/4670/Veta-Grande-Mine.aspx
Report Date: 2017-01-31
Region: Zacatecas, Mexico
Project Status:
Commodity: Silver, Zinc, Lead, Gold
Throughput:
Mine Life:
Mine Type:
Ore type:
Technical report and processing history
The following archived source profiles have been consolidated here to preserve the project’s processing history and study context.
Veta Grande Project — 2016 Technical Report
Veta Grande Project — 2016 Technical Report
| Company | Santacruz Silver Mining Ltd. |
| Date | 2016-05-17 |
| Region | Unknown |
| Commodities | Silver, Lead, Zinc, Gold |
| Mine Type | Unknown |
| Throughput | 700 tpd (Capacity), 300-350 tpd (Current) |
| Mine Life | Unknown |
| Status | Operating |
Executive Summary
The Veta Grande Project Technical Report outlines the recovery methods and processing capabilities of the Vetagrande mineral processing facility. The facility is currently operating with a milling capacity of 700 tpd, though current milling operations are running at 300-350 tpd. The crushing plant is located off-site and operates at 18 tph, with preparations underway to relocate it to the processing facility to increase productivity to 80 tph.
The processing plant utilizes a conventional grinding circuit featuring two primary ball mills and one secondary remolder ball mill, achieving 80% passing 200 mesh or 74 microns. Flotation operations are designed to handle 750 t/d of Pb and Zn concentrate using specific cell tank configurations for lead and zinc. Dynamic leaching using NaCN is employed, with Droper used as a depressant for Fe and Zn during the Pb flotation stage to optimize recovery of Pb, Ag, and Au.
Concentrate handling involves three drying ponds on-site, with specific ponds designated for Pb and Zn concentrates prior to shipping. The Tailings Storage Facility (TSF) includes three units; TSF-1 is inactive and full, TSF-2 is operational, and TSF-3 is under design study. The facility appears to have sufficient supply for increases in operation.
Reports
Entities
Concepts
Website: https://miningdataonline.com/property/4670/Veta-Grande-Mine.aspx
Report Date: 2016-05-17
Region: Unknown
Project Status: Operating
Commodity: Silver, Lead, Zinc, Gold
Throughput: 700 tpd (Capacity), 300-350 tpd (Current)
Mine Life: Unknown
Mine Type: Unknown
Ore type:
