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 Expert  107742

Expert in Chemical Separation/Purification

Available for your Consulting and Expert Witness Needs

Wisconsin (WI)
Education Work History Career AccomplishmentsPublicationsConsulting Services Expert Witness

Summary of Expertise: Listed with other top experts in: 
Expert focuses on separations and bioprocess development. His experience including identifying alternate process technologies and configurations; evaluating, modeling, specifying and supervising necessary laboratory and pilot testing; interpreting data, design, and startup; and measuring and predicting vapor-liquid and liquid-liquid equilibrium data. He has worked with the selection and design of solvents for liquid extraction. He is familiar with new process development and evaluating the impact of raw materials, processes, and product specifications on the separations process. Expert is knowledgeable of project risk factors for new technology startups for chemical and biochemical product recovery facilities with capital costs from $2 to 200 million. He can identify cost saving opportunities and perform technical and economic evaluations of emerging technologies.

He has a particular interest in lactic acid, organic acids, amino acids, alcohols, glycols, esters, amides, antioxidants, animal and plant growth factors, proteins, vitamins, microbial gums, and bio-pulp. He has identified options for recovery of antibiotic from fermentation broth.

Expert's experience includes all aspects of separations process development, from a sketch on paper to an operating 1-ton/hour facility. Some of the projects he has completed include evaluating options for recovery of insulin-like growth factor (somatomedin) from horse blood, identifying a process to remove inhibitory components from fermentation broth, and allowing reuse and effluent reduction (with potential to save over $250,000/year). He supervised and conducted hands-on bench and pilot-scale separations and reaction testing. He directed computer simulation (PROCESS½) modeling. He designed distillation, filtration, drying, ion exchange, and reaction equipment with scale-up factors of 1:40,000 and greater. Expert also developed a new hydrolysis column system using batch data and simulations that, after startup, operated and exceeded a design target of 95% conversion at 2500 lb/hr.

Expert has specified quality control laboratory setup and a process control system. He acted as the lead technical liaison person to the full-service design contractor for separation process design. He managed research and development projects and helped meet aggressive timing and budget objectives (50 months from concept to startup with completed facility budget $15 million less than the initial estimate). He has written patents and patent drafts for various new process concepts.

Expert has experience in the brewing and fermentation industry. He has completed various assignments, including identifying processes to remove inhibitory components from fermentation broth and allowing the reuse and effluent reduction (with potential to save over $250,000/year). Expert has reviewed business and research plans for a proposed $125 MM/yr business venture. He evaluated and tested pilot-scale solid-state fermentation. He recommended directions for lactic acid fermentation research program. He has analyzed the economics and recommended research directions for fermentation procedures to produce 1,2-propanediol from glucose. He has also performed routine quality control tests for a beer manufacturing facility.

Expert has experience with solvent selection and extractant design using a combinatorial program, property databases, and heuristic rules.

Expert has extensive experience with esterification and hydrolysis process system design, testing, modeling and scale-up.

At Kiwichem, Expert uses in-house software packages to model aeration in fermentation and mass transfer in gas-liquid mixing systems.


chemical separation


organic chemical separation


fermentation technology


solvent extraction








fluid mixing

Show Secondary and Basic Areas of Expertise
Expert may consult nationally and internationally, and is also local to the following cities: Milwaukee, Wisconsin;  Madison, Wisconsin;  Kenosha, Wisconsin;  Racine, Wisconsin;  Appleton, Wisconsin;  Rockford, Illinois;  Aurora, Illinois;  Elgin, Illinois;  Waukegan, Illinois;  and Schaumburg, Illinois.

Often requested
with this expert:

Chemical Separations, Extraction, Waste Management,...
Chemical Extraction, diffusion, mass transfer and...
Membranes, Filters, Separations, Validation, Extractables,...
Membrane Purification Processes, Separation Processes

Year   Degree   Subject   Institution   Honors
1987   PhD   Chemical Engineering   The University of Wisconsin  
1980   B.Tech   Biotechnology   Massey University, New Zealand   First Class Honors

Work History:
Years   Employer   Title   Responsibilities

1995 to






1988 to 1996


University of Wisconsin, Madison; Department of Chemical Engineering


Various (see below)


Associate Lecturer, 1996. Honorary Fellow, Visiting Associate Scientist 1990-95. Visiting Assistant Scientist 1988-89.

1990 to 1994




Technical Manager-Lactic Acid


1978 to 1985


Universal Foods, Milwaukee, WI Lion Breweries, New Zealand Meat Industry Research Institute


Research and Technical Assistant


Research and Technical Assistant for Universal Foods, Milwaukee, WI Lion Breweries, New Zealand Meat Industry Research Institute of New Zealand New Zealand Agricultural Engineering Institute

1978 to 1985


1900,Universal Foods, Milwaukee, WI


Research and Technical Assistant for868


Career Accomplishments:

Expert received an Ecochem Special Award in 1991. He was named a Kohler Fellow (1985), a Fulbright Scholar (1981), a UGC & Georgetti Scholar (1980), and a National Junior Scholar (1977).

Selected Publications and Publishers  
 - Separation Science and Technology  
 - U.S. Patent and Trademark Office  
 - Engineering Foundation Conference on Chemical Engineering Education in a Changing Environment  
 - Separation Science and Technology  

Consulting Services:
Recent Client Requests:
  • Expert in separation of low concentration fine chemicals for consulting on determine the commercial feasibility of separating valuable fine chemicals form a 15GPM process stream.
  • Expert in resin ion exchange and off-flavor removal.
  • Expert in removal of inhibitory compounds, phenolics, acetic acid from pretreated cellusic hydroysate upstream fermentation.
  • Expert to consult in nanoparticle isolation and purification,.
  • Expert for consulting on gas-liquid transfer.
  • Expert in Anti-Foaming Agents.
  • Vacuum systems expert for consulting on Improving the Existing Vacuum Filtration Process.
  • Expert in flue gas for consulting on diesel power plant cleaning system.
Click the green button above to contact Expert for a free initial screening call regarding your expert consulting needs.  Expert is available for consulting to corporate, legal and government clients.  Remember, your initial screening call to speak with Expert is free.

Expert Witness:
Recent Litigation Client Requests:
  • Expert for consulting on product liability/personal injury due to polyurethane shoe sole disintegrating.
Click the green button above to contact Expert for a free initial screening call regarding expert testimony, litigation consulting and support, forensic services, or any related expert witness services.  A few litigation needs include product liability, personal injury, economic loss, intellectual property (patent, trademark, trade secret, copyright), and insurance matters.  Remember, your initial screening call to speak with Expert is free.

Language Skills:
Expert has minimal competency in Chinese and French.

Additional Skills and Services:
Supplier and Vendor Location and Selection

Expert has experience locating vendors of: * Crystallization equipment * Membrane processing equipment * Distillation equipment * Electrodialysis equipment * Reactive distillation equipment * Evaporation equipment * Liquid-liquid extraction equipment * Ion exchange equipment * Nanofiltration equipment * Fermentation equipment * Refrigeration equipment * Cleaning-in-place equipment * Reverse osmosis equipment * Ultrafiltration equipment.


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