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Tetraethyl orthosilicate-containing dispersion coating — water vapor and liquid water barrier properties, TAPPI Journal September 2021

ABSTRACT: An aqueous styrene-butadiene latex dispersion coating containing in-situ processed tetraethyl orthosilicate (TEOS) applied on paperboard demonstrated improved water barrier performance. Coatings containing TEOS equivalent to 0.8% silicon dioxide (SiO2; dry basis) exhibited water vapor performance of < 25 g/m2/day (23°C, 50% relative humidity [RH]) and liquid water barrier performance Cobb 1800 s of < 6 g/m2, when applied as a single-layer 18 g/m2 coating. Cobb 1800 s barrier performance was still good (< 11 g/m2) at coat weights of 7–10 g/m2. The use of filler materials such as kaolin improved the vapor barrier properties of the coating, but this was not critical to the liquid water barrier properties.

Drones for Internal Inspections & Beyond, 2018 PEERS

Drones for Internal Inspections & Beyond, 2018 PEERS

Evaluation of rice straw for purification of lovastatin, TAPPI Journal November 2021

ABSTRACT: Cholesterol synthesis in the human body can be catalyzed by the coenzyme HMG-CoA reductase, and lovastatin, a key enzyme inhibitor, can reduce hypercholesterolemia. Lovastatin can be obtained as a secondary metabolite of Aspergillus terreus ATCC 20542. In this study, rice straw of lignocellulose was used in aeration and agitation bath fermentation in a 1-L flask, and a maximal crude extraction rate of 473 mg/L lovastatin was obtained. The crude extract was treated with silica gel (230–400 mesh) column chromatography. Ethyl acetate/ethanol (95%) was used as the mobile phase, and isolation was performed through elution with various ethyl acetate/ethanol ratios. The highest production rate of 153 mg/L was achieved with ethyl acetate/ethanol in a ratio of 8:2. The lovastatin gained from the crude extract was added to 12 fractions treated with 0.001 N alkali, and acetone was then added. After 24 h of recrystallization at 4°C, the extract underwent high-performance liquid chromatography. The purity had increased from 25% to 84.6%, and the recovery rate was 65.2%.

Leaching of Chloride and Potassium from Electrostatic Precipitator Catch, 1998 International Chemical Recovery Conference Proceedings

Leaching of Chloride and Potassium from Electrostatic Precipitator Catch, 1998 International Chemical Recovery Conference Proceedings

Emerging and Underutilized Technologies to Increase Kraft Mill Production, 1996 Engineering Conference Proceedings

Emerging and Underutilized Technologies to Increase Kraft Mill Production, 1996 Engineering Conference Proceedings

New Plantweb Architecture for Instumentation Maintance and Control, 1998 Engineering Conference Proceedings

New Plantweb Architecture for Instumentation Maintance and Control, 1998 Engineering Conference Proceedings

USING BLEACHING STAGE MODELS FOR BENCHMARKING HARDWOOD ECF BLEACH PLANTS, 2023 PEERS Conference

Continuous Digester Process Safety Improvements • Stress Corrosion Cracking and Overpressure Protection Lessons Learned and Opportunities, 2023 PEERS Conference

Factors Affecting Phosphorus Up-take/Dissolution during Slaking and Causticizing, 2023 PEERS Conference

Modelling of real oxygen delignification processes, 2022PEERS/IBBC Conference (22PEE/22IBB)