Metallurgical Testwork From Scoping To Feasibility Study …
A scoping-level study is generally conducted to the +/-50% level of accuracy, with flowsheet development and processing assumptions based on limited testwork. A prefeasibility-level study is typically conducted to +/-25% level of accuracy, and metallurgical testwork is sufficient for preliminary flowsheet development and equipment selection.
Technical Report: Design and Evaluation of Tailings …
Design changes are required to account for the higher unit weight of saturated tailings. In addition, since water retention dams are designed to limit the drainage through the core, …
(PDF) Design, construction and management of …
Tailings are a mixture of coarse-grained and fine-grained particles of ore, including crushed rock, processed water, extraction process additives, and a small amount of valuable minerals (Vick ...
Fine chrome beneficiation and reverse PGM upgrade of …
The reverse upgrade of PGMs in the WHIMS tailings stream, through chromite removal to the magnetic concentrate stream, resulted in PGM grades of up to 6.5 ppm at a recovery …
Chapter 4.1 Waste and Materials Management
d. Descriptions of facility design criteria; e. Design report(s); f. Short-term and long-term placement plans and schedules for tailings and waste rock or other facilities that are subject to stability concerns; g. Master tailings placement plan (based on life of mine); 197 See also IRMA Chapter 4.2, criteria 4.2.2
A study on the recovery of fine chromite from UG2 tailings
The recovery of chromite from the tailings streams of South African UG2 platinum concentrators adds significant financial returns to these operations. Whilst the coarser fractions are amenable to ...
Considerations for Preparing Design Criteria for Dewatered Tailings …
This paper discusses current practice for evaluating key TSF design criteria, taking as a base leading guidelines such as MAC (2019), ANCOLD (2012) and CDA (2007, 2014), and relates this to the context of dewatered tailings facilities. It identifies important elements to consider, issues likely to be encountered and areas of improvement, and …
ThickenedandPasteTailingsPipelineSystems: Design …
developed over the last decade. This series of papers outlines the process for designing and implementing a typical surface tailings or underground backfill pipeline system. The papers comprise the following parts: Part 1 (presented at Paste06) discussed: o development of the design criteria document, o issues to be considered for the test …
PGM Ore Processing at Impala's UG-2 Concentrator
The feed to Impala's UG-2 plant contains 22 - 24% Cr2O 3, or roughly 50% chromite. The aluminium silicate mineralisation includes primary magnesium alumino-silicates such as feldspars, pyroxenes and chlorite, and. comprise roughly 70% of the PGM (platinum group minerals) in the UG-2 plant feed, the remainder largely being alloys of iron, lead ...
GLOBAL INDUSTRY STANDARD ON TAILINGS …
TOPIC III: DESIGN, CONSTRUCTION, OPERATION AND MONITORING OF THE TAILINGS FACILITY PRINCIPLE 4: Develop plans and design criteria for the tailings …
Tailings filtration: integrating process design with …
Tailings filtration: integrating process design with geotechnical outcomes R de Kretser & F Sofra Paste 2023, Banff, Canada 458. 3 Tailings filtration system design. Full design of a tailings filtration and dry stacking system, or the evaluation of it against other candidate management strategies, requires testwork across all the areas outlined ...
The impact of platinum production from UG2 ore on …
case of the latter process even more UG2 can be used due to the higher chrome recovery of the process. The The pellets are fed in various forms, including pre-reduced, si ntered/pre-oxidised, cold ...
Tailings dewatering by pressure filtration: process …
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[PDF] Tailings dewatering by pressure filtration: process optimisation
A series of case studies are presented showing how different steps contribute to the design and customisation of the filter presses and describing their main features. Tailings dry stacking is a mine tailings storage method that presents many advantages and is becoming increasingly attractive to the mining industry. Filter presses …
OVERVIEW OF PGM PROCESSING
Tailings Purchased Concentrate Concentrate Furnace Matte Smelting Ore Anglo Converting Process (at Rustenburg) Our configuration differs from our competitors - we have a broad footprint across all 3 Bushveld limbs. Consequently, our integrated production system is more complex (i.e.13 concentrator plants, 3 smelters and 2 refineries) g g
Best Practices for Tailings Dam Design – KCB
Upstream tailings dams have been built for over a hundred years, and their design has evolved with improved construction practices and a better understanding of the potential for the static and dynamic liquefaction of tailings materials. They are best suited for arid climates where less water is stored in the impoundment, and in aseismic regions.
Modelling and optimization of process parameters for
Abstract. Chromite tailings are generated from chrome ore beneficiation plants, containing substantial quantities of ultrafine particles. Generally these ultrafine …
A study on the recovery of fine chromite from UG2 tailings
Chromite is concentrated mostly with shaking tables and spirals. Flotation can be considered as a leading process to beneficiate the fine chromite which cannot be enriched by gravity separation.…. Expand. 6. PDF. Semantic Scholar extracted view of "A study on the recovery of fine chromite from UG2 tailings" by V. Ross et al.
Development of PGMs and Chrome Extraction Circuit …
The results obtained indicate that the installation of chrome plant in the middle of flotation circuit reduced the amount of chrome in the final PGM's product and PGMs entrained in …
Tailings Transport System Design Using Probabilistic …
Typically, a tailings slurry transport system design is based on deterministic inputs: minimum and maximum bounded ranges or set values of the key criteria that are …
Considerations for Preparing Design Criteria for Dewatered Tailings …
This paper discusses current practice for evaluating key TSF design criteria, taking as a base leading guidelines such as MAC (2019), ANCOLD (2012) and CDA (2007, 2014), and relates this to the context of dewatered tailings facilities. It identifies important elements to consider, issues likely to be encountered and areas of improvement, and ...
Tailings dewatering by pressure filtration: process optimisation and
Abstract: Tailings dry stacking is a mine tailings storage method that presents many advantages and is becoming increasingly attractive to the mining industry. Filter presses are able to reach very high performance in terms of cake dryness. However, thorough process testing and analysis is critical in order to determine the ideal equipment selection and …
Considerations for Preparing Design Criteria for Dewatered Tailings …
Dewatered tailings facilities (thickened, paste, filtered) are generally considered safer alternatives to conventional tailings disposal, primarily due to the lower amounts of water stored as a pond or interstitially within the tailings mass. While it is acknowledged that a risk-based approach to TSF design should always be followed, the pressure to deliver …
Tharisa kicks off Vulcan ultra-fine chrome recovery and …
The Vulcan plant has a nameplate capacity of 340,000 t/mth of tailings and involves "proprietary ground-breaking use of existing technologies in fine chrome recovery", the company says. The board initially signed off its construction in 2019, appointing Wood as the engineering, procurement and construction management contractor in the ...
Bioleaching of heavy metals from metal tailings utilizing …
The tailings will be released and migrated into water bodies and soil through oxidation, weathering, and other effects in the process of tailings storage. Heavy metals cause serious pollution to the surrounding water and soil environment, pose a threat to farmland and other ecosystems, and human health is also endangered ( Nguyen et al., …
A study on the recovery of fine chromite from UG2 tailings
A study on the recovery of fine chromite from UG2 tailings | Semantic Scholar. DOI: 10.1016/j.mineng.2022.107801. Corpus ID: 251635851.
GLOBAL INDUSTRY STANDARD ON TAILINGS …
TOPIC III: DESIGN, CONSTRUCTION, OPERATION AND MONITORING OF THE TAILINGS FACILITY PRINCIPLE 4: Develop plans and design criteria for the tailings facility to minimise risk for all phases of its lifecycle, including closure and post closure. PRINCIPLE 5: Develop a robust design that integrates the knowledge base and …
A study on the recovery of fine chromite from UG2 tailings
The recovery of chromite from the tailings streams of South African UG2 platinum concentrators adds significant financial returns to these operations. Whilst the …
Tailings dewatering by pressure filtration: process optimisation and
Globally, mining operators focus increasingly on tailings filtration to recover process water and store tailings more safely. Generally, required water contents below 20-w% are reached by using ...
Design Criteria | Guide to Design
There are a few steps that should be followed when creating design criteria: 1. Define the purpose of the project. 2. Identify the design requirements. 3. Identify the project's special needs. 4. Outline the …