Eugene Chola

Experience

• 

  Ural Federal University

  Jul 2018 - Sept 2018

  Laboratory Technician - Intern

  Responsibilities:• Carry out lab works (leach tests, splitting, wet/dry screening & sample analysis)• Sample preps • Ensure all lab samples are well labelled and tagged

• 

  AO "Uralgidromed"

  Jul 2019 - Jul 2019

  Industrial Experience

  Purpose: To familiarize & understand plant operations, material flow sheets and equipments used in the process plants.

• 

  First Quantum Minerals

  May 2022 - Nov 2022

  Metallurgist - Intern

  Roles/Responsibilities:1. Understand material flow sheet of the Hydromet circuit (Pre-Leach, Leach, CCD's, SX and EW's)2. Understand the Critical/Key parameters of the Pre-Leach Thickeners, Leach tanks, Counter Current Decantation Thickeners (CCD's) 3. CCD's - understand fully the effects of; -High/Low torques-High/Low bed Levels- Wash ratio- Wash Quality- Flocculation - High/Low densities4. Carry out density checks & calibrations5. Carry out flocculation checksProjects/Actions: • Low pH Leach & Discharge Neutralization• Audited and re-did the Hydromet solution balance.• Investigated the causes of overflows on the needle tanks on Train 1 Counter Current Decantation Thickeners (CCD's). Show less

• 

  Jubilee Metals Group PLC

  Nov 2022 - Jan 2024

  KPI’s: (Leach-CCD’s-SX-Tank House)Leach & CCD’s - Density control - pH control - Leach Efficiency - Wash Efficiency - Acid dosage/consumption - Flocculant dosage/consumption SX & Tank House - O/A ratios- Phase Disengagement Time (PDT’s)- Clay treatment - Organic Inventory - Strong Electrolyte Inventory - Extraction Efficiency - Copper transfers to SX and TH - PLS and Raffinate flows - Advance & Spent flows - Current load Show less Job summary/Purpose: To help control mass and water balance through the plant and subsequent distribution lines such as the final disposal lines, and disseminate such data variances in time to Plant Controllers/Plant Metallurgists as well as perform related duties as required by supervisor.Sections:Leach• Ensure correct leach densities are attained from the milling circuit.• Ensure correct pH for all the leach tanks.• Ensure flows from the mills are within stipulated range.• Ensure correct raffinate flows.• Ensure correct flows for acid addition into the receiving leach tanks.CCD’s• Balance the flows (Mass Balance).• Ensure correct densities to TSF.• Ensure low TSS in the CCD’s overflow to the PLS pond.• Ensure flocculation dosage and consumption are within stipulated range.SX & Tank House• Balance and ensure correct flows to SX.• Control Free Acids from Leach circuit. • Control crud levels.• Daily weighing of Copper cathodes.• Ensure the correct current load is set.• Ensure the Spent Electrolyte Inventory is within range.• Ensure the acid tenors in spent electrolyte are always within spec. Show less

  • Metallurgist Metal Accounting

    Oct 2023 - Jan 2024

  • Metallurgist

    Jul 2023 - Sept 2023

  • Acting Plant Metallurgist

    Apr 2023 - Sept 2023

  • Process Controller (CRO)

    Nov 2022 - Jul 2023
• 

  First Quantum Minerals

  Jan 2024 - now

  Flotation Operator, Nickel Processing

  Specific Job ResponsibilityThe role has field equipment accountability from the flotation feed surge tank, all flotation cells, concentrate dewatering, reagents, sampling, OSA systems and all associated equipment.Carry out thorough pre-start checks, equipment inspections, adjustments and cleaning.Maintain high housekeeping and safety standards.Compliance to HSE requirements and reporting/correcting defects and unsafe conditions to the supervisor.Ensure all incidents are reported promptly.Ensure that start-up and shutdown procedures in all areas of flotation are executed safely and promptly.Operate equipment according to procedures given in the operating strategies and instructions.Deliver and exceed the KPI’s of flotation recovery, concentrate quality, flotation and reagent dosing system utilization, concentrate moisture and specification and routine work compliance.Conduct all routine tasks, including field check-sheets and equipment inspections in a timely and accurate manner.Diagnose plant defects and ensure they are immediately addressed.Identify equipment that requires correction and immediately escalate to superiors.Support maintenance in the delivery of their tasks.Perform any other duties as assigned by the supervisor.Areas of work/sections:Jameson Cell, Columns, Roughers & Cleaners Show less