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 .

Rex Zietsman
Founder and Principal Consultant
Brief CV
Principal Consultant, Whitfield Consult
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Providing chemical engineering consulting services
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Areas: renewable energy, Rare Earths, Tantalum/Niobium, lithium, minerals processing
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Current project development: biomethane from cactus
Chief Technical Officer, Globe Metals and Mining
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Handling all things technical in the development of a niobium and tantalum mine in Malawi
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Development of chlorination to potentially replace HF/SX for tantalum/niobium extraction
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Currently busy with a BFS for a 1.5Mtpa pyrochlore mine including concentrator and HF/SX refinery
Chief Technical Officer, Carbon Neutral Energy Systems
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Handling all things technical in the development of cactus to biomethane
Project Manager and Mine Executive, Bikita Mine, Zimbabwe
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Managing the mine on behalf of shareholders
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Installed a new DMS for petalite recovery
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Installed an optical sorting machine to recover pollucite
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Upgraded the tantalum and niobium concentrator
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PFS for a 1Mtpa spodumene concentrator
Competent Person for Frontier Rare Earths
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Assisted with the design of the concentrator and separation plants
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Signed off both sections as part of the the NI43-101 compliant PFS
Sales Director, AR Process Projects – an engineering and project management company
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Responsible for sales and process engineering
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Developed unique leach pre-heat system for uranium processing
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Areas: chemical, mining, minerals processing, pulp and paper, fertilizer, nuclear (PBMR Fuel Plant)
Sales Manager, IMS Process Projects
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Managed sales of capital equipment principally evaporators, crystallisers, dryers, fluidized bed combustors, distillation systems, scrubbing systems, gas cleaning, effluent treatment plants, etc
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Assistance with the development of a unique Black Liquor Steam Reforming process
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Trouble shooting and provision of technical solutions to process challenges
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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