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Creator:: Gasteiger, Hubert A.
Abstract:: Problems with aluminosilicate scales in pulp and paper recycle streams create an interest in the formation mechanism and the chemical equilibrium of aluminosilicates. Evaluating solubility data from a system containing Na⁺ CI⁻, and OH⁻ ions as well as aluminium and silicon compounds, allowed to elucidate the characteristics of the aluminosilicate...
Resource Type:: Masters Thesis
Full Text:: Privacy Dean of Grad a e School 1 Date Thesis is Presented: October 3, 1988 Typed By: Meredith J

Creator:: Kim, Hee-taik
Abstract:: The research undertaken in this study deals with three topics related to the prediction of thermodynamic properties of electrolytes in aqueous solutions. In the first, Pitzer ion interaction parameters for 304 single electrolytes were evaluated from recently published osmotic coefficient data at 25°C by using multiple regression analysis to fit...
Resource Type:: Dissertation
Full Text:: . William J. Frederick, Jr., for his support, encouragement, and guidance that allow me to finish this

Creator:: Luh, Song-ping
Abstract:: In designing a solubility based separation process for solvent recovery of an organosolv pulping process, the phase behavior of polymeric lignin molecules in alcohol - water mixed solvent should be known. In this study, sodium lignin sulfonates (NaLS) samples were fractionated into three different molecular weight fractions using a partial...
Resource Type:: Masters Thesis
Full Text:: Approved: Willi J. Frederick / Jr. In designing a solubility based separation process for solvent

Creator:: Sinquefield, Scott A.
Abstract:: The non-ideal aqueous electrolyte simulator (NAELS) is composed of three major parts: a Newton-Raphson non-linear optimization program written by Weare, et al (1987); an activity coefficient subroutine for non-ideal electrolyte systems based on Pitzer's model; and an extensive, user expandable database. It is robust, stable, and requires neither thermodynamic data...
Resource Type:: Masters Thesis
Full Text:: approved: Redacted for Privcy / William J. Frederick The non-ideal aqueous electrolyte simulator (NAELS

Creator:: Sricharoenchaikul, Viboon
Resource Type:: Masters Thesis
Full Text:: Transformations and Sulfate Reduction During Pyrolysis of Kraft Black Liquor. Abstract approved: William J

Creator:: Laothumthut, Punnchalee
Resource Type:: Masters Thesis
Full Text:: . Abstract approved: William J. Frederick Fluoride is discharged as the effluent in many chemical

Creator:: Wannenmacher, P. Nick
Abstract:: The increasing occurrence of aluminosilicate caused complications in krafi pulp mills can be attributed to the closing of purge points and the expanded use of contaminated feedstocks and recycled fiber sources. An active purge of aluminum and silicon from the chemical recovery cycle must be undertaken in order to maintain...
Resource Type:: Dissertation
Full Text:: ACKNOWLEDGEMENTS I would like to thank my two co-major professors, Drs. Frederick and Kimura: Dr. Jim Frederick

Creator:: Kelly, Barry
Abstract:: Chemical equilibrium is a major factor in many natural and industrial systems. The ability to predict ionic equilibrium is extremely valuable in industry in solving problems without the costs involved in full scale experiments. An example of an application in the pulp and paper industry is the prediction of non-process...
Resource Type:: Masters Thesis
Full Text:: many. Specifically, I wish to thank Dr. William J. Frederick and Dr. Robert V. Mrazek for their

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