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in subjects: "Organic Acids"  
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Economic evaluation of the MIT process for manufacture of ethanol

Description: This report summarizes the results of an economic evaluation of the MIT process for the manufacture of ethanol from cellulosic residues. Conceptual process designs were developed for two cases, Case A which is based on the experimental data obtained to date, and Case B which hypothesizes the suppression of acid byproducts. Manufacturing costs, including profit, were estimated at $12.20/million Btu for Case A and $9.40/million Btu for Case B. These are equivalent to about $1.05 and $0.80/gal eth… more
Date: June 28, 1979
Creator: Jenkins, D. M. & Reddy, T. S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Effect of Organic Acid Additions on the General and Localized Corrosion Susceptibility of Alloy 22 in Chloride Solutions

Description: Electrochemical studies such as cyclic potentiodynamic polarization (CPP) and electrochemical impedance spectroscopy (EIS) were performed to determine the corrosion behavior of Alloy 22 (N06022) in 1M NaCl solutions at various pH values from acidic to neutral at 90 C. All the tested material was wrought Mill Annealed (MA). Tests were also performed in NaCl solutions containing weak organic acids such as oxalic, acetic, citric and picric. Results show that the corrosion rate of Alloy 22 was sign… more
Date: August 28, 2007
Creator: Carranza, R M; Giordano, C M; Rodr?guez, M A; Ilevbare, G O & Rebak, R B
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Development of biological coal gasification (MicGAS Process)

Description: This report describes progress on three fronts of the project. First in studies to elucidate optimal growing conditions for the consortia of coal degraders employed indicates that best growth occurs with 0. 2% w/v Shefton T. Secondly in comparing the biodegradative properties of the coal degraders, isolates identified as Mic-1 and Mic-4 were the best performers. And lastly bioreactors studies in batch mode are related.
Date: July 28, 1992
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Comparative genomics of citric-acid producing Aspergillus niger ATCC 1015 versus enzyme-producing CBS 513.88

Description: The filamentous fungus Aspergillus niger exhibits great diversity in its phenotype. It is found globally, both as marine and terrestrial strains, produces both organic acids and hydrolytic enzymes in high amounts, and some isolates exhibit pathogenicity. Although the genome of an industrial enzyme-producing A. niger strain (CBS 513.88) has already been sequenced, the versatility and diversity of this species compels additional exploration. We therefore undertook whole genome sequencing of the a… more
Date: April 28, 2011
Creator: Grigoriev, Igor V.; Baker, Scott E.; Andersen, Mikael R.; Salazar, Margarita P.; Schaap, Peter J.; Vondervoot, Peter J.I. van de et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Improved Processes to Remove Naphthenic Acids

Description: In the first year of this project, we have established our experimental and theoretical methodologies for studies of the catalytic decarboxylation process. We have developed both glass and stainless steel micro batch type reactors for the fast screening of various catalysts with reaction substrates of model carboxylic acid compounds and crude oil samples. We also developed novel product analysis methods such as GC analyses for organic acids and gaseous products; and TAN measurements for crude o… more
Date: April 28, 2004
Creator: Zhang, Aihua; Ma, Qisheng; Goddard, William A. & Tang, Yongchun
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

SOME OBSERVATIONS REGARDING RARE-EARTH LACTATES

Description: Lactates of all the rare earths except lanthanum, cerium, and praseodymium were prepared and studied. In the case of lanthanum, cerium, and praseodymium the laciates are apparently so soluble that they cannot be crystallized directly from aqueous solution. Products obtained by addition of anhydrous ethanol to sirupy solutions of the iight-rare-earth lactates were not well characterized and were deliquescent. Neodymium lactate trinydrate was prepared only by the addition of alcohol to a sirupy s… more
Date: March 28, 1962
Creator: Powell, J.E. & Farrell, J.L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Interaction of Actinide Species with Microorganisms & Microbial Chelators: Cellular Uptake, Toxicity, & Implications for Bioremediation of Soil & Ground Water.

Description: Microorganisms influence the natural cycle of major elements, including C, N, P, S, and transition metals such as Mn and Fe. Bacterial processes can also influence the behavior of actinides in soil and ground water. While radionuclides have no known biological utility, they have the potential to interact with microorganisms and to interfere with processes involving other elements such as Fe and Mn. These interactions can transform radionuclides and affect their fate and transport. Organic acids… more
Date: March 28, 2006
Creator: Hakim Boukhalfa Mary, P. Neu Alvin Crumbliss
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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