top of page

ABOUT

Whitfield Consult is built around the skill and experience of Rex Zietsman, a chemical engineer with over 30 years of experience in the areas of chemical, mining, minerals processing, pulp and paper and fertilizer. My experience was initially in a production environment though I have been a design engineer for the last 20 years .

 

Rex2.jpg
Rex Zietsman
Founder and Principal Consultant

Brief CV

Principal Consultant, Whitfield Consult

  • Providing chemical engineering consulting services

  • Areas: renewable energy, Rare Earths, Tantalum/Niobium, lithium, minerals processing

  • Current project development: biomethane from cactus

 

Chief Technical Officer, Globe Metals and Mining

  • Handling all things technical in the development of a niobium and tantalum mine in Malawi

  • Development of chlorination to potentially replace HF/SX for tantalum/niobium extraction

  • Currently busy with a BFS for a 1.5Mtpa pyrochlore mine including concentrator and HF/SX refinery

Chief Technical Officer, Carbon Neutral Energy Systems

  • Handling all things technical in the development of cactus to biomethane

 

Project Manager and Mine Executive, Bikita Mine, Zimbabwe

  • Managing the mine on behalf of shareholders

  • Installed a new DMS for petalite recovery

  • Installed an optical sorting machine to recover pollucite

  • Upgraded the tantalum and niobium concentrator

  • PFS for a 1Mtpa spodumene concentrator

Competent Person for Frontier Rare Earths

  • Assisted with the design of the concentrator and separation plants

  • Signed off both sections as part of the the NI43-101 compliant PFS

Sales Director, AR Process Projects – an engineering and project management company

  • Responsible for sales and process engineering

  • Developed unique leach pre-heat system for uranium processing

  • Areas: chemical, mining, minerals processing, pulp and paper, fertilizer, nuclear (PBMR Fuel Plant)

Sales Manager, IMS Process Projects

  • Managed sales of capital equipment principally evaporators, crystallisers, dryers, fluidized bed combustors, distillation systems, scrubbing systems, gas cleaning, effluent treatment plants, etc

  • Assistance with the development of a unique Black Liquor Steam Reforming process

  • Trouble shooting and provision of technical solutions to process challenges

  • Plant commissioning

​​

LET'S MEET

“We are a small consultancy that pulls in skills as required. We look forward to meeting you and your team and helping you define your challenges, develop solutions - and realize them! So, let's meet" 

Rex Zietsman, Principal Consultant

 

bottom of page