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Dr. Steven J. Severtson

Associate Professor
Ph.D. 1995, Institute of Paper Science and Technology
Phone: (612) 625-5265
E-mail: sever018@tc.umn.edu

Areas of Interest

Surface and Colloid Science

Courses Taught

* BBE 4301/5301 Surface and Colloid Science in Bio-based Products Manufacturing
* BBE 4303/5303 Bio-Based Materials Science
* BBE 4404/5404 Bio-based Composites Engineering

Selected Publications

Wang, J., Severtson, S. J. and Geil, P. H. Brittle-Ductile Transitions and the Toughening Mechanism in Paraffin/Organo-clay Nanocomposites. Materials Science and Engineering A, In Press.

Guo, J., Severtson, S. J. and Gwin, L. E., Optimizing the Monomer Composition of Acrylic Water-based Pressure Sensitive Adhesives to Minimize their Impact on Recycling Operations, Industrial and Engineering Chemistry Research, 46(9), 2753-2759, 2007.

Wang, J., Severtson, S. J. and Stein, A. Significant and Concurrent Enhancement of Stiffness, Strength, and Toughness for Paraffin Wax through Organoclay Addition. Advanced Materials, 18(12), 1585-1588, 2006.

Loy, J. E., Guo, J. and Severtson, S. J. Role of Adsorption Fractionation in Determining the CaCO3 Scale Inhibition Performance of Polydisperse Sodium Polyacrylate. Industrial & Engineering Chemistry Research, 43(8), 1882-1887, 2004.

Guo, J. and Severtson, S. J. Inhibition of Calcium Carbonate Nucleation with Amino-phosphonates at High Temperature, pH and Ionic Strength. Industrial & Engineering Chemistry Research, 43(17), 5411-5417, 2004.

Guo, J., Severtson, S. J. and Kroll, M. S. Role of Paper Face Stock Properties in Determining Removal Efficiencies of Pressure Sensitive Adhesive Films from Recycling Operations. Industrial & Engineering Chemistry Research, 43(6), 1443-1450, 2004.

Guo J. and Severtson, S. J. Application of Classical Nucleation Theory to Characterize the Influences of Carboxylate-Containing Additives on CaCO3 Nucleation at High Temperature, pH and Ionic Strength. Industrial & Engineering Chemistry Research, 42(14), 3480-3486, 2003.

Nowak, M. J., Severtson, S. J., Wang, X. P. and Kroll, M. S. Properties Controlling the Impact of Styrenic Block Copolymer Based Pressure Sensitive Adhesives on Paper Recycling. Industrial & Engineering Chemistry Research, 42(8), 1681-1687, 2003.

Severtson, S. J., Wang, X. P. and Kroll, M. S. Development of Environmentally Benign Pressure Sensitive Adhesive Systems via Modification of Substrate Properties. Industrial & Engineering Chemistry Research, 41(23), 5668-5675, 2002.

Severtson, S. J. and Nowak, M. J. Molecular Restructuring Kinetics and Low-Velocity Wetting of n-Alkane Rotator Phases by Polar Liquids. Langmuir, 18(24), 9371-9376, 2002.

Guo, J. and Severtson, S. J. Influence of Organic Additives on Calcium Carbonate Precipitation during Kraft Pulping, TAPPI Journal, 1(8), 21-27, 2002.

Severtson, S. J. and Gou, J. Influence of Ozonized Kraft Lignin on the Crystallization of CaCO3, Journal of Colloid and Interface Science, 249(2), 423-431, 2002.

Severtson, S. J. and Nowak, M. J. Dynamic Mechanical Properties and Low-Velocity Wetting Behavior of Plastic Crystalline States for n-Alkane Blends, Langmuir, 17(16), 4990-4996, 2001.

Nowak, M. J. and Severtson, S. J. Dynamic Mechanical Spectroscopy of Plastic Crystalline States in n-Alkane Systems. Journal of Materials Science, 36(17), 4161-4168, 2001.

Severtson, S. J. and Banerjee, S. Dual Reactive Domain Model for Sorption of Aqueous Organics by Wood Fiber. Journal of Colloid and Interface Science, 236(2), 362-368, 2001.

Nowak, M. J., Severtson, S. J., Coffey, M. J. and Slinkman, D. H. Relationship Between Thermal Properties of Hydrocarbon-Based Wax Coatings and their Behavior in Papermaking Systems. In Fundamental Advances and Innovations in the Pulp and Paper Industry: AIChE Symposium Series, Brogdon B. N., Walker, C. C. and Hart, P. W. Volume Editors, 95(322), 144-152, AIChE Press, New York (1999).

Severtson, S. J., Coffey, M. J. and Nowak, M. J. Dispersion of Waxes During the Recycling of Old Corrugated Containers, TAPPI Journal, 82(12), 67-74, 1999.

Severtson, S. J., Duggirala, P. Y., Carter, P. W. and Reed, P. E. Mechanism and Chemical Control of CaCO3 Scaling in the Kraft Process. TAPPI Journal, 82(6), 167-174, 1999.

Severtson, S. J. and Banerjee, S. Sorption of Chlorophenols to Wood Pulp. Environmental Science and Technology, 30(6), 1961-1969, 1996.

Severtson, S. J. and Banerjee, S. An Efficient Approach to the Direct Liquid Scintillation Counting of 14C Labeled Organic Compounds Sorbed to Pulped Wood Fibers. Applied Radiation and Isotopes, 47(3), 319-322, 1996.

Severtson, S. J. and Banerjee, S. A Mechanistic Model for Collisional Desorption. Environmental Science and Technology, 27(8), 1690-1692, 1993.
Presentations

Guo, J. and Severtson, S. J., "Properties Controlling the Inhibition Performance of Organic Antiscalants" Presented at the AIChE/TAPPI Joint Session at the 2003 TAPPI Fall Technical Conference held in Chicago (October 26-30, 2003).

Severtson, S. J. and Kroll, M. S. Redesigning Laminate Components to Reduce the Environmental Impact of Hot Melt Pressure Sensitive Adhesive Products. Presented at the 7th Annual Green Chemistry and Engineering Conference (ACS/AIChE) held at the National Academies, Washington, DC, June 23-26, 2003.

Guo, J. and Severtson, S. J., "Role of Polymeric Black Liquor Components in Determining Calcium Carbonate Scaling Behavior" Presented at the AIChE/TAPPI Joint Session at the 2002 TAPPI Joint Engineering/Pulping Conference held in San Diego (September 8-12, 2002).

Severtson, S. J. and Kroll, M. S., "Development of Environmentally Benign Pressure Sensitive Adhesives," Presented at the 2002 ASC International Convention and Exposition held in Los Angeles (April 14-16, 2002).

Guo, J. and Severtson, S. J., "Influence of Organic Additives on CaCO3 Precipitation and Scaling" Presented at the AIChE/TAPPI Joint Session at the 2001 TAPPI Pulping Conference, November 7, 2001.

Severtson, S. J., "Chemical Control of CaCO3 Scaling under Kraft Process Conditions" Presented at the AIChE/TAPPI Joint Session at the 2000 TAPPI Pulping Conference, November 8, 2000.

Nowak, M. J. and Severtson, S. J. Relationship Between Thermal Properties of Hydrocarbon-Based Wax Coatings and their Behavior in Papermaking Systems, Presented at the 1998 AIChE Annual Meeting in Miami.

Severtson, S. J. online Measurement of CaCO3 Deposition in the Bleach Plant. Presented at the Lake States TAPPI Fall Meeting, Appleton, Wisconsin, October 30-31, 1997.

Severtson, S. J. Chemical Control of CaCO3 Scaling in the Kraft Process. Improving Pulping Productivity with Innovative Technology, PaperAge Advanced Learning Seminars, Atlanta, Georgia, January 19-22, 1997.

Severtson, S. J. and Banerjee, S. Sorption of 2,4-Dichlorophenol and 2,4,5-Trichlorophenol by Pulp Fibers. Presented at the 70th ACS Colloid and Surface Science Symposium, June 16-19,1996.

Severtson, S. J. and Banerjee, S. The Sorption of Chlorophenolic Compounds to Primary Clarifier Solids. TAPPI Environmental Conference Proceedings, TAPPI Press, Atlanta, GA, 263-267, 1995.

Severtson, S. J. and Banerjee, S. The Sorption of Organics by Pulp-Derived Solids. TAPPI Environmental Conference Proceedings, TAPPI Press, Atlanta, GA, 97-100, 1993.

Patents

Thompson, J. O., Verett, S. P., Severtson, S. J. and Loy, J. E., Method for inhibiting calcium salt scale, United States Patent 7,172,677 issued February 6, 2007.

Thompson, J. O., Verett, S. P., Severtson, S. J. and Loy, J. E., Composition for inhibiting calcium salt scale, United States Patent 6,869,503 issued March 22, 2005.

Severtson, S. J. and Coffey, M. J., Contaminant dispersants useful in recycling of treated containers, United States Patent 6,548,558 issued April, 15, 2003.

Severtson, S. J. and Coffey, M. J., Contaminant dispersants useful in recycling of treated containers, United States Patent 6,248,793 issued June 19, 2001.

Duggirala, P. Y., Morris, J. D., Reed, P. E., Severtson, S. J., Process for treating an aqueous liquid containing forming calcium scale salts by adding a copolymer of 1,2-dihdroxy-3-butene antiscalant, United States Patent 6,235,152 issued May 22, 2001.

Duggirala, P. Y., Morris, J. D., Reed, P. E., Severtson, S. J., Process for the inhibition of scale in harsh systems and novel antiscalants for same, United States Patent 6,232,419 issued May 15, 2001.

Duggirala, P. Y., Morris, J. D., Reed, P. E., Severtson, S. J., Kraft process for the production of wood pulp by adding a copolymer of 1,2-dihydroxy-3-butene antiscalant, United States Patent 6,146,495 issued November 14, 2000.

Severtson, S. J. and Coffey, M. J., Use of additives to breakdown and stabilize wax during fiber recycle, United States Patent 6,113,738 issued September 5, 2000.