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Filling your Wet End Chemistry Toolbox: Part 1 Fundamentals

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The TAPPI Papermaking Additives Committee is hosting a  quarterly webinar series, Fill your Wet End Chemistry Toolbox, to Improve Your Productivity, Stability, and Efficiency, designed to dive deeper into the science and technology of wet end chemistry. This four-part series will be hosted by Dr. Przemyslaw Pruszynski of Nalco, an Ecolab Company. The first installment of the series, on Thursday, April 2 at noon EST, will focus on fundamentals and is offered at no charge. 
This series will expand on certain topics covered in the committee’s annual Wet End Chemistry course. The first installment of the series will focus on fundamentals, which will cover basic terminology related to wet-end chemistry of a paper machine, including:
  • Colloidal systems and their stability
  • The impact of pH on charge of the system and additives; typical pH levels of papermaking operations, pH control strategies and requirements
  • Charge – source of charge,  relevance of charge, zeta potential vs. cationic demand, charge control strategies
  • Conductivity and its impact on papermaking operations
  • Hardness, sources, typical values, consequences of exceeding hardness limits
  • Chemical system stability. 
Additional topics in the series include: 
  • Retention programs, 
  • Managing extractives: how to operate a cleaner paper machine
  • Stability and potential incompatibilities. 
Join us for one or all of the webinars and gain a more complete understanding of the wet end.

Dr. Pruszynski is one of the foremost experts in wet end chemistry and currently serves as global technical specialist in paper chemistry with Nalco, an Ecolab company. Przem received his MSc and PhD from the University of Poznan, Poland, in the area of physical organic chemistry where he taught for 12 years. After moving to Canada, he continued his research and teaching at Dalhousie University in Halifax, N.S.,Canada, and the University of Toronto. The industrial part of his career started at Dow Chemical Research in the Forest Products Group. He joined Nalco in 1992 and has spent the past 23 years occupying various technical positions.
Dr. Pruszynski is the author and coauthor of close to 100 papers and conference contributions. He is also a frequent instructor at PAPTAC and TAPPI professional courses. Dr. Pruszynski is a recipient of the Jasper Mardon Memorial Prize for contribution to science and technology of papermaking. His areas of expertise include water chemistry, wet end chemistry, papermaking chemistry, mechanical pulping and bleaching, papermaking, and paper properties.

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