ore dilution at open pit

Controlling operational dilution in open-pit mining ,

Controlling operational dilution in open-pit mining ,

ABSTRACTDilution and ore loss are important factors that can affect costs and profitability of a mining operation by lowering the quantity of mineral or metal that can be produced from each ton of processed ore When discussing open-pit mining, dilution and ore loss are sometimes assumed as fixed factors in geostatistical block models and cut-off grade calculations, without considering .

Know More
Measuring Blast Movement To Reduce Ore Loss And Dilution

Measuring Blast Movement To Reduce Ore Loss And Dilution

the ore block boundaries in the blasted bench can be adjusted to compensate for the measured movement and then ore recovery can be optimised Following initial development of the prototype technology, the JKMRC further developed and demonstrated the system in actual production blasts at an open pit gold mine operated by Placer Dome Inc

Know More
Dilution and ore recovery - QueensMineDesignWiki

Dilution and ore recovery - QueensMineDesignWiki

Appendix E8 Open Pit – Loss and Dilution MMMemo KSM Loss and Dilution 2012 Apr 29docx Page 1 , Re: KSM - 2012 PFS Loss and dilution calculations 1 Introduction The KSM project is a large open pit copper-gold porphyry deposit The ore-body is continuous within the cut-off grade shell , and some waste will be added to the ore (dilution .

Know More
ore dilution at open pit - janvandebroekbe

ore dilution at open pit - janvandebroekbe

of equipment at an open pit mine the ore loss/waste dilution criterion assumed by the planner The berm width in open pit mining7 A highgraded block Dilution and ore recovery QueensMineDesignWiki Feb 12, 2017 Dilution is the waste material not separated from the ore in the stages of In a practical underground and open pit setting, the ore .

Know More
Risk assessment of dilution in open pit mines | SpringerLink

Risk assessment of dilution in open pit mines | SpringerLink

Ebrahimi A (2013) The importance of dilution factor for open pit mining projects World Mining Congress, Montreal Google Scholar Henning JG, Mitri HS (2007) Numerical modelling of ore dilution in blasthole stoping

Know More
ore dilution challenges in open pit

ore dilution challenges in open pit

Measuring Blast Movement to Reduce Ore Loss And Dilution Darren , However, ore loss and dilution can be minimized and significant increases in profit can be realized if the movement , at an open pit gold mine operated by Placer Dome Inc , fragmentation problems and ,

Know More
The mine planning process for an open-pit diamond mining ,

The mine planning process for an open-pit diamond mining ,

pit optimisation, mine planning, pit shell, recovery, dilution, revenue factor, pit design, split shell, sensitivity analysis, scheduling, , Generation of pit shells Pit slope design The various ore and waste rock types at Letseng are divided , The mine planning process for an open-pit diamond mining operation Overhead costs Overhead (fixed .

Know More
Understanding Blast Movement at Ahafo Gold Mine in Ghana

Understanding Blast Movement at Ahafo Gold Mine in Ghana

understand blast movement dynamics and its impact on ore loss and dilution A methodology to minimize ore loss and dilution in open pit mines has been developed by JKTech and is shown below This methodology has been implemented at Newmont Ghana Gold, Ahafo and is summarized as follows:

Know More
THE IMPORTANCE OF DILUTION FACTOR FOR OPEN PIT ,

THE IMPORTANCE OF DILUTION FACTOR FOR OPEN PIT ,

Ore losses and dilution are present at all stages of mining and while several models can investigate the influence of dilution it is its quantification that poses the most serious challenge (Pakalnis et al, 1995) This paper introduces a methodology to quantify dilution factor in open pit min The proposed

Know More
Analysis of the Impact of the Dilution on the Planning of ,

Analysis of the Impact of the Dilution on the Planning of ,

Analysis of the Impact of the Dilution on the Planning of Open-Pit Mines for Highly Structural Veined-Shaped Bodies R Amirá, N Morales and A Cáceres 1 Introduction For the vein-shaped bodies, the dilution of the mineral resource causes greater eco-nomic impact than for the porphyry copper due to the higher amount of surface ore

Know More
(PDF) Controlling operational dilution in open-pit mining

(PDF) Controlling operational dilution in open-pit mining

When discussing open-pit mining, dilution and ore loss are sometimes assumed as fixed factors in geostatistical block models and cut-off grade calculations, without considering specific .

Know More
ECONOMIC ASSESSMENT AND MINE PRODUCTION ,

ECONOMIC ASSESSMENT AND MINE PRODUCTION ,

relationship between the waste and ore volume Different sensitivity analysis will also be performed in order to appreciate what happens to the project economics when certain variables of high importance, such as the processing capacity, gold price and dilution rate vary Open-pit ,

Know More
MPIGM Workshop South African Representative CRIRSCO

MPIGM Workshop South African Representative CRIRSCO

Mining Modifying Factors, Open Pit Roger Dixon South African Representative CRIRSCO Presentation Agenda 1 General Open pit modifying factors , Mining dilution factors used; Mining recovery factors; and The extent to which Inferred Resources are contained in the pit production schedule and the

Know More
Calculation and Management for Mining Loss and Dilution ,

Calculation and Management for Mining Loss and Dilution ,

The mining loss rate and dilution rate are the key indicators for the mining technology and management level of mining enterpris Aiming at the practical problems such as the large workload but inaccurate data of the traditional loss and dilution calculation method, this thesis introduces the operating principle and process of calculating the loss rate and dilution rate at the mining fields .

Know More
Ore Dilution & Recovery in Mining

Ore Dilution & Recovery in Mining

Recovery and dilution usually are interrelated; with some methods of stoping a high recovery involves contamination of the ore from the walls or capping, and often clean ore can be obtained only by leaving some ore in the mine In open-stope mines the greatest loss of ore is that tied up in pillars left for support of the back or hanging wall

Know More
Reduce ore dilution and loss in open pit mines | BMT

Reduce ore dilution and loss in open pit mines | BMT

Dilution can be a major contributor to poor grade results, and blast movement is a significant cause of dilution and ore loss 1 BMT works with geologists from over 105 open pit operations around the world to accurately measure 3D blast movement so that the ore is ,

Know More
Mining method evaluation and dilution control in Kittilä mine

Mining method evaluation and dilution control in Kittilä mine

Mining method evaluation and dilution control in Kittilä mine Master’s Thesis Espoo, May 5, 2014 , open pit mine but nowdays all the production comes from underground mine The , more cost effective method for mining the ore and how to reduce the dilution The study is divided into two parts: dilution control and mining method .

Know More
Reconciliation principles for the mining industry: Mining ,

Reconciliation principles for the mining industry: Mining ,

The F2 factor enables a check on unplanned dilution entering the ore stream between ore control and the mill By using the factors it is possible to calculate a monetary value on improvements in the accuracy of orebody knowledge, selectivity and the effects of dilution and ore loss , Controlling operational dilution in open-pit mining Taís .

Know More
calculating dilution factor in mining

calculating dilution factor in mining

calculating dilution factor in mining Products List the importance of dilution factor for open pit mining , - SRK Consulting , Estimating Mining Factors (Dilution and Ore Loss) in Open Pit Mines , using examples from large open pit stratiform copper and magnetite deposits This can be.

Know More
Mining Dilution | SpringerLink

Mining Dilution | SpringerLink

Dec 21, 2013· Abstract Dilution is a critical issue that affects many aspects in mining It is generally due to the geometric characteristics of the ore body, the mining operation, the characteristics of geologic contacts, and the limitations of the mining equipment to recover material to ,

Know More
61 Ore Dilution – An Underground Perspective

61 Ore Dilution – An Underground Perspective

Mar 11, 2019· In open pit mining, ore losses are not typically given much consideration However in underground mining they can have a great impact on the project life and economics Mining method sketches can play a key role in understanding underground dilution and ore losses, even in today’s software driven mining world

Know More
Estimation of Open Cut Mining Recovery and Mining ,

Estimation of Open Cut Mining Recovery and Mining ,

Estimation of Open Cut Mining Recovery and Mining Dilution By Kent Bannister, ARMIT, FAusIMM (CP), CEO Kent Bannister Pty Ltd, (KBPL) Summary Loss and dilution of Mineral Resource grade occurs during mining activiti Mining Recovery and Mining Dilution estimates are a required consideration in the reporting of Ore Reserves for mineral projects

Know More
Tais Renata Câmara and Rodrigo de Lemos Peroni Mining

Tais Renata Câmara and Rodrigo de Lemos Peroni Mining

Tais Renata Câmara and Rodrigo de Lemos Peroni RM Int ng uro Preto 64 44 oct dec 216 Abstract In open pit mining, dilution is not always a factor systematically analyzed and calculated Often it is only an adjusted number, for example, calculated or even em-pirically determined for a certain operational condition perpetuating along time .

Know More
Mine dilution management - MICROMINE mining software

Mine dilution management - MICROMINE mining software

Jun 09, 2017· Mine dilution management: vital to success Properly managing ore dilution is vital to the success of any mining operation and it’s a process that takes a lot of careful management from not only machine operators but also mine engineers and the control room

Know More
Ore Grade Reconciliation Techniques – A Review

Ore Grade Reconciliation Techniques – A Review

The essence of ore grade reconciliation is to identify, analyse and manage variance between planned and actual results in a way that highlights opportuniti A consistent record of poor reconciliation is an indication that this variance has not been adequately managed This would inevitably result in significant economic impact on mining compani

Know More
v116n2a6 Monitoring ore loss and dilution for mine-to-mill ,

v116n2a6 Monitoring ore loss and dilution for mine-to-mill ,

considered open pit mining (Ebrahimi, 2013, p 2) and pit-to-plant operations (Gillot, 2004, p 1) as subjects and then generalized these , of ore loss and dilution on the mill efficiency, and time tracking of ore movement from source to the plant The study revealed that fragmentation, underground accumulation of ore, and dilution have a .

Know More
 Thuringer - Senior Long Range Engineer - Nevada ,

Thuringer - Senior Long Range Engineer - Nevada ,

• Optimize open pit designs using, costs, cut off grades, geotech recommendations, and corporate guidance , • Generate monthly compliance reports to understand and minimize ore dilution

Know More
Stripping ratio - Wikipedia

Stripping ratio - Wikipedia

In mining, stripping ratio or strip ratio refers to the ratio of the volume of overburden (or waste material) required to be handled in order to extract some tonnage of ore For example, a 3:1 stripping ratio means that mining one tonne of ore will require mining three tonnes of waste rock

Know More
Abstract - USGS

Abstract - USGS

OPEN PIT MINE MODELS Two open pit models were developed, a small tonnage and a large tonnage model The small tonnage model is valid for operations with daily capacities of 500 to 20,000 st/d of material moved (ore and waste) For the large tonnage model, applicable capacities are 20,000 to ,

Know More
ore dilution and ore recovery - slideshare

ore dilution and ore recovery - slideshare

Oct 04, 2019· It is convenient to consider dilution in two categories: I) Internal Dilution, II) External (Contact) Dilution Figure 3: A mining block in an open pit visualizing internal and external dilution (Ebrahimi, 2013) @Hassan Harraz 2019 Ore Dilution and Ore Recovery 2

Know More