Kekane John william

• Managing 30 laboratory staff on Manganese Ore and Sintered Processing in line with ISO 17025:2017.
• ISO 17025 Internal Auditing and system course.
• Managing Manganese Ore Sampling according to ISO 4296-1( Increment Sampling).
• Managing Manganese Ore Sample Preparation according to ISO 4296-2(Preparation of Samples).
• Managing Manganese Ore and Sintered Particle Size Distribution(PSD) using ISO 6230:1989.
• Managing Manganese Ore and Sintered Loss on Drying(LOD) using ISO 4299:1989.
• Managing Manganese Ore Analyses using XRF.
• Managing Anthracite Coal or Coke Analyses using ISO 17246, ISO 589/ISO 687, ISO 1171, ISO 562.
• Conduction Tool Box Talk, incidents reports and Risk assessments.
• Overseeing equipment Inspections, Efficiencies and Verifications.
• Reviewing and Releasing of Analysis Report.
• Carry out Laboratory Internal Audit.
• Overseeing Yearly Equipment Calibrations.
• Overseeing Training and PTOS (Planned Task observations).

Instruments Used:X-Met 8000 XRF AND ARL QUANTX EDX XRF ANALYSER.

Reason For Leaving:Contract expired.

Contact For reference:Elsie Malefe,Laboratory Manager,078 171 1820

• Managing 26 laboratory Staff on Manganese Ore processes in line with ISO 17025:2017.
• Managing Manganese and Iron Ore Sampling using ISO 4296-1:1984 and ISO 3082:2017.
• Managing Manganese and Iron Ore Sample preparation using ISO 4296-2:1984 and ISO 3.82:2017.
• Managing Manganese and Iron Ore Particle Size Distribution(PSD) using ISO 6230 and ISO 4701:2019.
• Managing Manganese and Iron ore Loss On Drying (LOD) Moisture using ISO 4299:1989/310:1992, and ISO 3087/2596.
• Managing manganese and Iron Ore Analyses using We Chemistry(Potentiometer) and EDX XRF.
• Managing Reporting.
• Nominated Representative of SANAS and Technical Signatory of SANAS.
• Carry out Internal Audits.
• Overseeing Daily Equipment Verifications.
• Overseeing Yearly Calibration of Equipment.
• Overseeing Monthly Equipment Efficiencies.
• Training and Development of Employees.
• Managing PTOS (Planned Task Observations)
• Managing Reporting of Results using Oracle and Star LIMS (Laboratory Information Management System).

Instrument Used: 852 Titrando/Metrohm Potentiometer, Mettler Toledo Potentiometer and Shimadzu EDX-7200.

Reason For Leaving:Retrenched

Contact for Reference:Dr Dhes Mari,084 561 0177.

• Team Leader on Managanese Sampling, Sample Preparation and XRF Analysis.
• Manganese Ore Sampling, Manganese Ore Sample Preparation,Manganese Ore Particle Size Distribution(PSD), Manganese Ore Loss On Drying(LOD).,Manganese Ore XRF Analysis.
• Equipment Verifications.
• Laboratory Training Modules.
• ISO Principles.
• Splitting of Samples and Splitting Verification.
• Weighing of Samples.
• Crushing of samples using Different sizes of crushers-15mm,3mm and 1mm and crusher verification monthly Efficiences.
• Pulverising Samples to size-75 microns and Pul;veriser Verification daily Efficiencies.
• Pressing samples to get Pallet.
• Analysing Manganese Ore Samples using XRF(X-Ray Fluoresence)
• Reporting Results.
• Equipment Performance Monitoring.
• Qua;lity Control and Assurance.
• Intsument Maintenance and Trouble shooting.
• Safety Representative.

Instrument Used:S2 Puma Bruker XRF

Reason For Leaving: Move To Mintest.

Contact For Reference: Roxetta Manolo, Laboratory Manager,064 751 0312.

• Overseeing 10 Laboratory Staff on Coal Mine.
• Overseeing Coal Sampling
• Overseeing Coal Sample Preparation
• Overseeing Coal Particle Size Distribution.
• Overseeing Coal Total Moisture , Loss On Drying(LOD) and Inherent Moisture.
• Overseeing Coal Analysis Ash, Volatil matter ,Fixed Carbon Air Dry Basis and Fixed Carbon Dry Basis.
• Overseeing Coal Analysis Determination of Sulfur Using Leco Analyser

Instrument Used: S832 and CS744 Leco Analyser, Furnacec and Ovens.

Reason For Leaving:Move To Kuruman East manganese

Contact For Reference:Lindiwe, Laboratory Manager, 082 543 3615.

• Conducted research on platinum group metals (PGMs) to enhance understanding of their properties and applications.
• Developed process for PGMs using ion-exchange resins, improving extraction efficiency.
• Performed analysis of PGMs, including platinum, palladium, iridium, rhodium, ruthenium, and osmium, to support material characterisation and quality control.
• Method Development and Validation.
• Maintenance and Calibration of Analytical Instruments.
• Troubleshooting.
• Calculating Mass Balance For Efficiency and Purity.
• Conducted fire assay tests to determine metal content in samples.

Instrument Used: pH ,Voltmeter,Auto titrator,ICP-OES,ICP-MS and AA.

Reason For Leaving: Retrenched.

Contact For Reference:Shalau Tladi, Senior Chemist,011 365 6500.

• Fire Assay.
• Analysing PGMS, Platinum, Palladium, Rhodium, Ruthenium, Iridium and Osmium.

Instrument Used:ICP-OES,ICP-MS and AA.

Reason For Leaving: Move To Lonmin

Contact For Reference: Tshepo

• Performed analysis of PGMs including platinum, palladium, rhodium, ruthenium, iridium, and osmium using wet chemistry, AA, and ICP to support mining operations and resource evaluation.
• Conducted analysis of manganese and iron ore using wet chemistry, AA, and ICP to ensure quality control and compliance with industry standards.

Utilised potentiometer, autotitrator, AA, ICP-OES, and ICP-MS for precise measurement and analysis of chemical compositions in samples.

Reason For Leaving: Move To Anglo American Research laboratory.

Provided reference contact as Nombuso, Laboratory Supervisor.