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Synergistic Effect of Tri-N-Octylamine on the Solvent Extraction of Thorium by Thenolytricluoroacetone

Description: This technical report seeks to ascertain which amine species cause the synergistic effect exerted by tri-n-octylamine (TNOA) on the solvent extraction of thorium by TTA, the nature of the species formed, and the values of the equilibrium constants involved. This report also includes 2 figures and 2 tables to accompany the findings.
Date: April 26, 1962
Creator: Newman, Leonard & Klots, Paul
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Fast Curing of Composite Wood Products

Description: The overall objective of this program is to develop low temperature curing technologies for UF and PF resins. This will be accomplished by: • Identifying the rate limiting UF and PF curing reactions for current market resins; • Developing new catalysts to accelerate curing reactions at reduced press temperatures and times. In summary, these new curing technologies will improve the strength properties of the composite wood products and minimize the detrimental effects of wood extractives on the … more
Date: April 26, 2006
Creator: Ragauskas, Dr. Arthur J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Computational Characterization and Prediction of Estrogen Receptor Coactivator Binding Site Inhibitors

Description: Many carcinogens have been shown to cause tissue specific tumors in animal models. The mechanism for this specificity has not been fully elucidated and is usually attributed to differences in organ metabolism. For heterocyclic amines, potent carcinogens that are formed in well-done meat, the ability to either bind to the estrogen receptor and activate or inhibit an estrogenic response will have a major impact on carcinogenicity. Here we describe our work with the human estrogen receptor alpha (… more
Date: August 26, 2005
Creator: Bennion, B J; Kulp, K S; Cosman, M & Lightstone, F C
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Mutagenic Potency of Food-Derived Heterocyclic Amines

Description: The understanding of mutagenic potency has been primarily approached using ''quantitative structure activity relationships'' (QSAR). Often this method allows the prediction of mutagenic potency of the compound based on its structure. But it does not give the underlying reason why the mutagenic activities differ. We have taken a set of heterocyclic amine structures and used molecular dynamic calculations to dock these molecules into the active site of a computational model of the cytochrome P-45… more
Date: October 26, 2006
Creator: Felton, J S; Knize, M G; Wu, R W; Colvin, M E; Hatch, F T & Malfatti, M A
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

CO2 Capture by Absorption with Potassium Carbonate: Third Quarterly Report 2005

Description: The objective of this work is to improve the process for CO{sub 2} capture by alkanolamine absorption/stripping by developing an alternative solvent, aqueous K{sub 2}CO{sub 3} promoted by piperazine. Modeling of stripper performance suggests that vacuum stripping may be an attractive configuration for all solvents. Flexipac 1Y structured packing performs in the absorber as expected. It provides twice as much mass transfer area as IMTP No.40 dumped packing. Independent measurements of CO{sub 2} … more
Date: October 26, 2005
Creator: Rochelle, Gary T.; Hilliard, Marcus; Chen, Eric; Oyenekan, Babatunde; Dugas, Ross; McLees, John et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Amines as Extractants--Survey of the Descriptive and Fundamental Extraction Chemistry

Description: Both the study and the use of extractions with highmolecular-weight amines (including quaternary ammoniums) in organic solution are increasing extensively. While equilibria have been measured in the extraction of an increasing range of acids and Aetal ions, a difficulty remains unresolved in that the amine concentration powerdependence of extraction often indicates a different stoichiometry of the complex existing in the organic phase than do limiting loading and other considerations. Neverthel… more
Date: November 26, 1963
Creator: Coleman, C. F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

CO2 Capture by Absorption with Potassium Carbonate

Description: The objective of this work is to improve the process for CO{sub 2} capture by alkanolamine absorption/stripping by developing an alternative solvent, aqueous K{sub 2}CO{sub 3} promoted by piperazine. In Campaign 3 of the pilot plant, the overall mass transfer coefficient for the stripper with 7 m MEA decreased from 0.06 to 0.01 mol/(m{sup 3}.s.kPa) as the rich loading increased from 0.45 to 0.6 mol CO{sub 2}/mol MEA. Anion chromatography has demonstrated that nitrate and nitrite are major degra… more
Date: January 26, 2005
Creator: Rochelle, Gary T.; Hilliard, Marcus; Chen, Eric; Oyenekan, Babatunde; Dugas, Ross; McLees, John et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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