Ore Grade-control Antamina

Using Portable XRF Analysis for Ore Grade Control in Mining

 · Ore deposits are inconsistent in nature having high concentrations of metals in one area but much lower concentrations in others Mining geologists perform ore grade control in underground mining operations to figure out where the most profitable ore bodies are in terms of location and mineral concentration variability By performing ore grade control mining

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Driving Productivity by Increasing Feed Quality CRC ORE

grade is an unavoidable consequence of ore deposit geology and mass mining technologies for increasingly mature mining operations In typical crush grind float operations value recovery only takes place at 100 micron particle size involving 3 4 orders of magnitude size reduction compared to run of mine feed For increasingly low grade deposits the cost of energy and capital intensity required

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Molybdenum and zinc stable isotope variation in mining

 · Unweathered ore grade molybdenite and sphalerite samples were subsampled from Antamina drill core from a range of mineralized areas from within the deposit For molybdenites individual grains weighing a few mg each were hand picked from drill core samples and dissolved in Savillex beakers on a hot plate in 3

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Mines Money Exploration and Ore Grade Control

 · Mines Money Exploration and Ore Grade Control Last month s Mines and Money London show was as energetic as ever Over 2 000 attendees from over 150 mining companies ranging from exploration juniors to established producers and majors as well as over 600 investors and 250 speakers discussed the critical issues shaping the mining industry

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RECONCILIATION DELIVERING ON PROMISES ABSTRACT

The grade control or ore control process involves the predictive delineation of the tonnes and grade of ore that will be recovered by mining The predictions have a number of common characteristics across all mineralisation and mining types from small low production rate metalliferous underground mines to large world class open pits as two diverse examples The

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Optimisation of the grade control procedures at the Yandi

 · Effectiveness of ore grade control at operating mines depends on both the quality and quantity of the samples used Therefore optimisation of grade control procedures requires analysis of sample quality and their spatial distribution This approach implying quantitative estimation of both these factors and quantification of their contribution to the grade control

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Simulation of Grade Control Stockpiling and Stacking for

posit is mined as either ore or waste depending on the grade control model The mined material is sent to stockpiles for storage and preliminary blending The material in the stockpiles is then reclaimed and sent to a large stacker for final blending before being sent to the furnace It is criti cal that the furnace feed meet the requirements set out during the design of the furnace The

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PDF Optimisation and Continuous Improvement of Antamina

Antamina categorises their ore into material classifications or ore types copper only M1 M2 and M2A co pper zinc M3 M4 M4A and bornite M 5 M6 depending on the Cu Zn and Bi assays

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FLOWSHEET DEVELOPMENT FOR GOLD OREBODIES

roasting the ore or concentrate to burn off the carbon All of these techniques are relatively expensive however so the economic cut off gold grade for refractory ores is somewhat higher than non refractory ores The mining industry uses a rule of thumb of 80% gold recovery to define the transition from a refractory to a non

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PDF Optimisation and Continuous Improvement of Antamina

Antamina categorises their ore into material classifications or ore types copper only M1 M2 and M2A co pper zinc M3 M4 M4A and bornite M 5

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Optimum Dig Lines for Open Pit Grade Control

Critical reviews of grade control generally focus on blasthole sampling and the estimation of ore control block model OCM grades with little or no attention given to dig line design For example the estimation of block grades is deemed important as estimation errors lead to the misclassification of ore types and subsequent dollar loss

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1 Froth Flotation Fundamental Principles

Cell Bank Control Operation Components Feed Rate Mineralogy Particle Size Pulp Density Temperature FlotationGrade/recovery performance of a hypothetical copper ore flotation process Product % Weight % Cu Assay Feed 100 Concentrate 10 Tailings 90 a From Table 1 the Ratio of Concentration can be calculated as F/C = 100/10 = 10 If only

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Iron Ore Mining and Grade Control Using Thermo Scientific

 · Iron Ore Mining and Grade Control Using Thermo Scientific Portable XRF Analyzers Figure 1 RC pulp sample is lightly pressed to make a flat surface for analysis Methodology Thirty five reverse circulation RC samples were analyzed using a Niton XL3t XRF analyzer Commonly in an RC drill a pneumatic reciprocating piston hammer drives a tungsten steel drill bit which through the

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How to use Grade Control Polygon Method in Surpac

 · In an effort to minimize the cost of mining and maximize the recovery of ore careful Grade Control is an integral and essential part of both open pit and underground mining operations The grade control module provides you with tools to automate and simplify the more mundane aspects of production control tasks This article provides solutions for polygon grade estimation for open pit

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Grade Control and Blending at the Jacinth Ambrosia Mineral

Grade control at JA is geared toward maintaining a consistent feed to the concentrating plant; however the ore body morphology and grade distribution is highly variable Individual zones vary from one to 20m in thickness HM grades between to 60% as well as variable clay and oversize content which requires sophisticated blending to maintain stable maximum

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Antamina 2021 SlideShare

 · 14 Antamina s Mineral Resources 100% Basis Ore Mt Cu % Zn % Ag g/t Mo % Measured Copper Ores 111 Measured Copper Zinc Ores 50 Indicated Copper Ores 572 Indicated Copper Zinc Ores 156 Meas Indicated Resources Total 889 Inferred Copper

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Use of Leapfrog Geo for grade control at Çöpler Gold Mine

The Çöpler plant now has the capacity to process approximately 17 000 tonnes per day of oxide ore Grade control is a key function that dominates the mining geologists day to day activity This includes taking into account the planning of data collection physical collection of data management of that data interpretation modelling and production of practical excavation

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Mine Grade Control & Reconciliation SRK Consulting

In addition we have the experience and expertise needed to analyse and apply grade control data in a way that minimises differences between planned and actual production optimises business performance and reduces risks of misdirected ore and unintentional dilution Our experts are highly proficient in using advanced mining software packages and producing robust grade geological and

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Use of Leapfrog Geo for grade control at Çöpler Gold Mine

The Çöpler plant now has the capacity to process approximately 17 000 tonnes per day of oxide ore Grade control is a key function that dominates the mining geologists day to day activity This includes taking into account the planning of data collection physical collection of data management of that data interpretation modelling and production of practical excavation plans One of

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Paring the processes Faster ore control and

 · New ore control technology Due to expected lower grade ores with advancing mine life Peñasquito is facing a declining metal production profile The requirement of the ore control system to accurately predict ore feed characteristics is critical to maximizing metal recovery at Peñasquito while the ability to accurately route materials from the ore control system is critical to site success

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Grade Control Drilling Grade Control in Mining Ranger

Grade control drilling consists of a number of drill holes in close proximity usually in the ore body This allows the geologists to determine the ore grade and its changes as well as helping locate the boundaries of the mine pits where it intersects waste rock We are one of the major mining contractors to some of Australia s biggest miners

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Rock Geology Geology

The Antamina deposit shares numerous common features with other large porphyry related Cu skarns Einaudi 1982a b but it differs from most in the exceptional development of mineralized endoskarn and the association of ore grade Cu Zn and Mo in contiguous zones An additional unusual feature is the widespread development of chalcopyrite rich hydrothermal breccias the extent and above

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Using Portable XRF Analysis for Ore Grade Control in Mining

 · Ore deposits are inconsistent in nature having high concentrations of metals in one area but much lower concentrations in others Mining geologists perform ore grade control in underground mining operations to figure out where the most profitable ore bodies are in terms of location and mineral concentration variability By performing ore grade control mining operators are also reducing risk

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Paring the processes Faster ore control and

 · New ore control technology Due to expected lower grade ores with advancing mine life Peñasquito is facing a declining metal production profile The requirement of the ore control system to accurately predict ore feed characteristics is critical to maximizing metal recovery at Peñasquito while the ability to accurately route materials from the ore control

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Optimisation of the grade control procedures at the Yandi

 · Effectiveness of ore grade control at operating mines depends on both the quality and quantity of the samples used Therefore optimisation of grade control procedures requires analysis of sample quality and their spatial distribution This approach implying quantitative estimation of both these factors and quantification of their contribution to the grade control errors was used for

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OrePro 3D OBC

This allows OrePro 3D to transform your in situ grade control model into a swelled post blast grade control model a step change in grade control and blast movement mitigation The maximum value that exists in a post blast muckpile is a function of both the available ore and how it is mined Your ore types grade classifications flitch

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GRADE CONTROL BLENDING AND SELECTIVITY FOR OPTIMAL

monitors ore tonnes and grades on stockpiles to enable optimal blending for the required plant process performance The grade control process is described below DRILLING Drill burden and spacing are based on the rock types present at Skorpion 4 m x 4 m in ore

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