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Grade Control In A Platinum Mine

Quantification of sampling uncertainties at grade control …

The mining industry has been challenged with rising costs and lower ore grades mined, thereby squeezing profit margins. Furthermore, with decreasing ore grades being mined, the PG

Miner vacancy at Two Rivers Platinum Mine- Grade 10 or …

Two Rivers Platinum Mine is a joint venture between African Rainbow Minerals (ARM) (54%) and Impala Platinum (46%) and is managed by ARM. Job Purpose To effectively operate a stoping panel and/or development end during a shift by ensuring safe working practices, continuous inspection of panel and/or end conditions, planning to achieve ...

Integrating the Theory of Sampling into Underground Mine Grade Control

Grade control aims to deliver adequately defined tonnes of ore to the process plant. The foundation of any grade control programme is collecting high-quality samples within a geological context. The requirement for quality samples has long been recognised, in that these should be representative and fit-for-purpose. Correct application of the Theory of Sampling …

Improved Grade Control using Reverse Circulation Drilling at

Anglo American's Mogalakwena Platinum mine, an open pit operation in South Africa moving 100 Mt/a, has recognised the value of improved material definition and is in the process of changing from blasthole to reverse circulation (RC) sampling for in-pit grade control.

Seismic solutions utilizing existing in-mine

Anglo American's Mogalakwena Platinum mine, an open pit operation in South Africa moving 100 Mt/a, ... [Show full abstract] circulation (RC) sampling for in-pit grade control. This is aimed at ...

OPERATING PLATINUM GROUP METAL MINES IN …

Controlling Company Mine and Location Ownership Mining Reserves Output and Labour Prospects Contact Details. Impala Platinum No. 2 Fricker Road Illovo 2196 Tel: 011 731 9000 Fax: 011 731 9254 . Marula Platinum 219 mine. 35 km Northwest of Burgersfort, Limpopo province. Impala 73%, BEE partners 27%. Underground mining on the ...

(PDF) Sampling for resource evaluation and grade control in …

The foundation of any resource evaluation and/or grade control programme is the collection of high-quality samples within a geological context.

Grade control in mineral resources management …

Effective grade control strategies are essential to optimise mining operations and minimise financial risks. The concept of cut-off grade is examined as a crucial parameter to distinguish economic ore from waste material, influencing ore …

Quantification of sampling uncertainties at grade …

Grade control sampling assay data is used routinely in conjunction with the geology of the ore to assign a destination for the ore (either to a stockpile or to the mill), based on its grade classification for the platinum mine. The classification of the grade for a particular mining block is made using four key elements (4E).

Grade Control Classification of Ore and Waste: A Critical …

For a mining operation, minimizing misclassification of ore and waste during grade control is of critical importance. This paper reviews grade control procedures for classifying ore and waste that are based on estimation and conditional simulation approaches. The similarities and differences of the procedures are first discussed in the light of an example. Subsequently, several case …

Grade Control and Dilution Management Analysis | Umbrex

Implement selective mining techniques to focus on high-grade zones while minimizing dilution. Collaborate across geology, mining, and processing teams to align operational goals and …

(PDF) GRADE CONTROL

grade control is not a secret realm occupied by ge ologists and surveyors alone, but must involve the cooperation and commitment of all people involved in planning, stoping, ore handling, and...

grade control guide

use of rock type models. Chapter 3 tackles geostatistical modelling for grade control. Chapter 4 covers the transfer of uncertainty in grade to uncertainty in profit and the expected profit estimate for grade control. Chapter 5 describes the determination of dig limits that maximize potential profit and account for the limitation of the mining

Reconciliation along the mining value chain

In most massive mining operations, grade control programmes must be specified in terms of protocols that define sampling points and methods, appropriate for the method, from the creation of the grade/block model to the final product dispatch. ... > In platinum mining, strict control of product and mining mix is essential to improve PGE recoveries

(PDF) GRADE CONTROL

The GCS is a grade control reference sample number, and has nothing to with the MRM sample . ... Solving on Anglo Platinum Mines' (Brown & Ther on, 2004), in which this is explained in more .

GRADE IMPROVEMENT THROUGH MULTI-DISCIPLINARY …

Practical & well-balanced changes to the blast design by multi-disciplinary team introduced to ensure smooth perimeter control blasting for all types of ground at Unki Mine. Introduction of …

Quantification of sampling uncertainties at grade control …

Grade control sampling assay data is used routinely in conjunction with the geology of the ore to assign a destination for the ore (either to a stockpile or to the mill), based on its grade classification for the platinum mine. The classification of the grade for a particular mining block is made using four key elements (4E).

Blasthole sampling for grade control; the many problems …

Samples are taken from a broad range of locations in the mining industry for grade control, including blast holes, feed and product streams, conveyor belts, trucks, railway wagons, and stockpiles. …

Quantification of sampling uncertainties at grade control …

Figure 7-11 BQ streams used to demonstrate systematic errors between GC-Lab preparation vs. EXP-Lab preparation, in g/t 4E - "Quantification of sampling uncertainties at grade control decision points for a platinum mine"

Best practice sampling methods, assay techniques, …

History of sampling and grade control. The protocols currently considered industry standard are based on the work done by a number of geologists working for the two major mining houses - Anglo Platinum and Impala Holdings - during the …

Resource and Grade Control Model Updating for Underground Mining

A key requirement for the mining industry is the characterization of the spatial distribution of geometallurgical properties of the ore and waste in a mineral deposit. Due to geological uncertainty, resource models are crude representations of reality, and their value for forecasting is limited. Information collected during the production process is therefore of high …

v115n8a3 Reconciliation along the mining value chain

In most massive mining operations, grade control programmes must be specified in terms of protocols that define sampling points and methods, appropriate for the method, from ... In platinum mining, strict control of product and mining mix is essential to improve PGE recoveries In gold mining, issues resulting in a poor mine call ...

Eighth International Mining Geology

2 Improved Grade Control using RC Drilling at Mogalakwena Platinum Mine, South Africa Gabby Kirk 1, Trust Muzondo 2and Dirk Harney 3 1. Principal Mining Geologist, Anglo American PLC, 45 Main ...

GRADE CONTROL: THE KEY TO PROFITABLE AND …

The primary goal of Grade Control is to maximize the profitability of the mining operation by extracting an optimal amount of high-quality ore while reducing costs related to processing and extraction.

AN OVERVIEW OF THE GEOLOGY AND MINING …

These challenges have been met, and with ongoing intensive training, communication, improved mining techniques, and better grade control methods, Hartley Platinum has come a long way towards ...

The history of the Waterberg deposit: Why South Africa's first platinum …

The dramatic collapse of South Africa's first platinum venture was caused by a combination of the following: (i) poor grade control and gross overestimation of the real ore grade; (ii) failure to test adequately both the grade and metallurgical behaviour of the platinum before commissioning an expensive treatment plant; and (iii) the waste of ...

Grade control in mineral resources management and mine …

This chapter focuses on grade control in the field of mineral resources management and mine planning. The ore grade, a key determinant of a mining project's ... This underscores the pivotal role of grade control in sustainable mining practices, equipping readers with valuable insights and practical tools to enhance ore grade evaluation, risk ...

Improved grade control using reverse circulation …

Anglo American's Mogalakwena Platinum mine, an open pit operation in South Africa moving 100 Mt/a, has recognised the value of …

The history of the Waterberg deposit: why South Africa's …

platinum mine but the mine closed after producing platinum for only a few months in 1926. The Waterberg ... Platinum Ltd, grade control. INTRODUCTION The majority of platinum-group element (PGE)

GRADE CONTROL

Grade Control Exploration Geology ... document is wholly owned by Anglo Platinum or its subsidiaries, and its distribution is the ... that may challenge the success of a mining operation. Grade ...

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