Summary
Overview
Work History
Education
Skills
Accomplishments
Certification
COMPETENCIES
Timeline
Generic

Ngoakoana Rapoo

Saulspoort

Summary

Innovative Metallurgical professional with 13 years of hands-on experience in mineral processing, metallurgical processing optimization, plant optimization, test works, project execution. Well-versed in evaluating and monitoring metallurgical processes, products and equipment. Recognized for outstanding technical and analytical paired with strong communication and team coordination abilities. Proficient in SCADA, GE Proficy iFix Historian, MillStar, FloatStar, Maximo & IFS softwares and systems applications.

Overview

16
16
years of professional experience
1
1
Certification

Work History

Plant Metallurgist - IFS Business Enabler

Sedibelo Resources (PPM)
02.2023 - 12.2023
  • Participating in the analysis of existing workflows and process to customise and design the new system
  • Involved in the SAT (Solution Acceptance Testing) together with IFS Functional Consultants in liaison with Business Owners
  • Preparation and reviewing of system documentation and training materials
  • Involved in the UAT (User Acceptance Testing) in consultation with Business Owners
  • Deployment, data migration and testing on Mock and Data Migration Environment
  • Conduct CRIM (Customisation Reports Interface & Modification) testing, data validation and issues resolution
  • Conduct and give guidance during training for End Users
  • Executing production transactions (Planning, Processing, Basic & Master data review and updates) while ensuring that the data checks out with the existing production reports
  • Maintaining daily, weekly, and monthly reporting procedures for production, metal recovery, and plant cost efficiencies for Metal Accounting purposes
  • Water management and consumption.

Plant Metallurgist

Sedibelo Resources (PPM)
10.2019 - 01.2023
  • Ensure full compliance with HSEQ policies, standards, and regulations; while promoting good Safety, Health, and Environmental practices in all working sections
  • Design, costing, and reporting of Metallurgical testwork programmes in liaison with Operations Manager
  • Inventory, consumption management, optimisation, costing and reporting of reagents and grinding media
  • Daily running of the Plant (Crusher, DMS, MF2) and optimisation of the process; evaluation and interpretation of results
  • Management, training, and guiding of Metallurgists (including Graduates/Interns), Process Operators, and external stakeholders in quality plant operations, safety and time management and enhance productivity and efficiency
  • Partaking in management meetings and as standby official on weekends
  • Perform any other reasonable tasks as assigned by line management
  • Analysing the quality and dosing of reagents - PGM flotation and oxidised PGM flotation, as well as performing metallurgical calculations
  • Maintaining daily, weekly, and monthly reporting procedures for production, metal recovery, and plant cost efficiencies for Metal Accounting purposes
  • Identify and implement approved cost savings on new and existing projects
  • Water management and consumption
  • Running sampling campaigns for projects and improvement purposes
  • Preparation of process sampling and analysis; interpret and report resulting data and equipment selection and sizing; in liaison with the Operations Manager
  • This includes but not limited to crushers, screens, conveyors, hydro cyclones, classifiers, thickeners, pumps, filter presses, and other mineral processing minerals
  • Conduct benchmarking and remain current to new technologies relevant to the concentrator.

Metallurgist

Sedibelo Resources
07.2014 - 09.2019

Liaise with suppliers – reagents and grinding media inventory.
Design and costing of Metallurgical testwork programmes in liaison with Plant Metallurgist and Line Management.
Evaluation of results and interpretation and conducting both hot and batch floats.
Management, training, and direction of Metallurgy Interns and Process Operators in quality plant operations, safety and time management and enhance productivity and efficiency.
Ensuring Operators adhere to plant operating parameters.
Perform any other reasonable tasks as assigned by Plant Metallurgist and line management.
Analysing the quality and dosing of reagents - PGM flotation and oxidised PGM flotation, as well as performing recovery calculations.

Assist in calculating ball and beads loading in the mills.
Assist in presenting quarterly progress technical reports to Line Management.
Maintaining daily, weekly, and monthly reporting procedures for production, metal recovery, and plant cost efficiencies for Metal Accounting purposes.
Identify and implement approved cost savings on new and existing projects.
Running sampling campaigns for projects and improvement purposes and performing the plant and mineral processing mass balance campaigns and optimise mineral processing flow diagrams.
Assist technical management to prepare process sampling and analysis, interpret and report resulting data to line management as well as assisting in equipment selection and sizing.
Working with NxGN consultants in the development, monitoring, evaluation, and review of the online reporting platform.

Junior Metallurgist

Sedibelo Resources (PPM)
10.2011 - 06.2014
  • Liaise with suppliers - reagents and grinding media inventory
  • Day to day plant performance and efficiencies monitoring
  • Grade, recovery, grind optimisation
  • Production and water reports
  • Particle size analysis, sampling, and sample preparation
  • Batch and hot floats test work
  • Thickeners settling tests.

Metallurgy Intern (P2) - Extractive Metallurgy

Minopex - PPM
03.2011 - 08.2011
  • Operate and calibrate PGM Online XRF Analyser
  • Xanthate titration and residuals
  • Sampling, sample preparation and PSDs
  • Settling tests
  • Batch flotation tests
  • Daily monitoring of the plant performance and reporting
  • Liaise with suppliers - reagents and grinding media inventory.

Metallurgy Intern (P2) - Physical Metallurgy

Element 6
01.2011 - 02.2011
  • Precomposite assembly
  • Lapping and polishing
  • Mounting or moulding
  • Malvern sizer, milling and tape casting.

Metallurgy Intern (P1) - Extractive Metallurgy

Impala Platinum Mine Limited
02.2008 - 08.2008
  • Monitoring plant conditions
  • Reagent checks i.e., pH, strength, flowrates, titrations
  • Sampling and sample preparation
  • Batch flotation tests
  • Thickeners settling tests
  • Pellet Collector plant trial
  • CMC degradation project.

Education

Bachelor - Metallurgical Engineering

Tshwane University of Technology
Pretoria
12.2013

National Diploma - Metallurgical Engineering

Tshwane University of Technology
Pretoria, South Africa
12.2011

N4 - Management Assistant

Orbit FET College
Rustenburg, South Africa
12.2004

Skills

  • Technical report writing
  • Quality Control
  • Time Management
  • Organizational Skills
  • Analytical Thinking
  • Problem-solving aptitude
  • Laboratory Testing
  • Effective Communication
  • Root Cause Analysis
  • Continuous Improvement
  • Performance monitoring
  • Team building

Accomplishments

  • 2nd prize - 1998 Science Essay Competion
  • Supervised team of 14 staff members.
  • Best Shift Metallurgist who took the least performing shift to top 2: 2016 – 2017
  • Increased Crushers efficiency and throughput by successfully installing and commissioning metal detectors.
  • Improved thickeners density and clarity through trial, installation and commissioning of Hawk sludge level system.
  • Achieved increased stability and recovery by completing flotation pumps modification with accuracy and efficiency.
  • Achieved improved milling and flotation stability through effectively trialing, installation, and commissioning of online digital density meters.
  • Improved primary mill circuits PSD through successful trial, installation and commissioning of automated ball loading system.
  • Achieved reduced equipment failure by introducing GE Proficy iFix Historian Server interfacing with SCADA software for condition monitoring.

Certification

  • Operations Management - UCT
  • Project Management - UCT
  • Cost Management Accounting - UCT

COMPETENCIES

  • Flexibility & responsibility
  • Analytical thinking & problem-solving
  • Time management
  • Results-oriented
  • Motivated & focused.
  • Efficient and effective Communication
  • Leadership
  • Career-focused
  • Ambitious and avid learner

Timeline

Plant Metallurgist - IFS Business Enabler

Sedibelo Resources (PPM)
02.2023 - 12.2023

Plant Metallurgist

Sedibelo Resources (PPM)
10.2019 - 01.2023

Metallurgist

Sedibelo Resources
07.2014 - 09.2019

Junior Metallurgist

Sedibelo Resources (PPM)
10.2011 - 06.2014

Metallurgy Intern (P2) - Extractive Metallurgy

Minopex - PPM
03.2011 - 08.2011

Metallurgy Intern (P2) - Physical Metallurgy

Element 6
01.2011 - 02.2011

Metallurgy Intern (P1) - Extractive Metallurgy

Impala Platinum Mine Limited
02.2008 - 08.2008

Bachelor - Metallurgical Engineering

Tshwane University of Technology

National Diploma - Metallurgical Engineering

Tshwane University of Technology

N4 - Management Assistant

Orbit FET College
Ngoakoana Rapoo