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in subjects: "Quinolines"

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Hydrogen bonding in asphaltenes and coal. Progress report, March 1, 1977--August 31, 1977

A calorimetric method is presented for the simultaneous evaluation of equilibrium constant, K, and molar enthalpy, ..delta..H/sup 0/, for 1 : 1 adduct formation of quinoline (Qu) with asphaltene (A), together with its acid/neutral (AA) fraction and its base (BA) fraction, isolated from a centrifuged liquid product (CLP) sample prepared from Kentucky hvAb coal at 27.6 MPa hydrogen pressure and 723K, with reactor charged with glass pellets. The same procedure was used to determine K and ..delta..… more

Date: August 1, 1977

Creator: Li, N. C. & Tewari, K. C.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Quantitative mammalian cell genetic toxicology: study of the cytotoxicity and mutagenicity of 70 individual environmental agents related to energy technologies and 3 subfractions of a crude synthetic oil in the CHO/HGPRT system. [Hamsters]

Conditions necessary for quantifying mutation-induction to 6-thioguanine resistance, which selects for >98% mutants deficient in the activity of hypoxanthine-guanine phosphoribosyl transferase (HGPRT) in a near-diploid Chinese hamster ovary (CHO) cell line, referred to as CHO/HGPRT system, have been defined. Employing this mutation assay, we have determined the mutagenicity of diversified agents including 11 direct-acting alkylating agents, 16 nitrosamines, 10 heterocyclic nitrogen mustards,… more

Date: January 1, 1978

Creator: Hsie, A. W.; Neill, J. P. & San Sebastian, J. R.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

The thermodynamic properties of 2-methylaniline and trans-(R,S)- decahydroquinoline

Measurements leading to the calculation of the ideal-gas thermodynamic properties for 2-methylaniline and trans-(R,S)-decahydroquinoline are reported. Experimental methods included combustion calorimetry, adiabatic heat-capacity calorimetry, comparative ebulliometry, inclined-piston gauge manometry, and differential-scanning calorimetry (dsc). Entropies, enthalpies, and Gibbs energies of formation were derived for the ideal gas at selected temperatures for both compounds. Critical properties we… more

Date: February 1, 1990

Creator: Steele, W. V.; Chirico, R. D.; Nguyen, A. & Knipmeyer, S. E.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Studies in Coal Liquefaction With Application to the SRC and Related Processes. Quarterly Report, May-July 1983

This report examines liquid-phase adsorption as a possible method of studying the interactions between coal liquids and hydrotreating catalysts. The duel purposes of this work are to develop a method to determine specific surface areas of porous catalysts and to examine how compounds commonly found in coal liquids are adsorbed on hydrotreating catalysts. The liquid-phase adsorption studies were performed at room temperature in tubing bomb reactors. Adsorption isotherms obtained from these exper… more

Date: March 1, 1984

Creator: Tarrer, A. R.; Guin, J. A. & Curtis, C. W.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Separation and structure elucidation of coal molecule fragments. Final report, February 1, 1976-August 31, 1979

Separation and identification of the polynuclear aromatic and aliphatic fractions of solvent-refined coal and its recycle oil were performed using a combination of solvent partition and chromatographic fractionation procedures with glass-capillary gas chromatography/mass spectrometry. Chromatographic profiles were generated for each fraction and some semiquantitative data were also obtained. In total, 146 polynuclear aromatic components of SRC were tentatively identified by their molecular weig… more

Date: January 1, 1980

Creator: Schultz, R. V.; Jorgenson, J. W.; Maskarinec, M. P.; Kump, R. L.; Marli, F.; Novotny, M. et al.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Chelating extractants of improved selectivity. Progress report, August 1, 1978-July 31, 1979

During the current contract period, the variation of coordination number of tervalent lanthanides observed earlier with 8-quinolinol extraction systems was exploited in the development of mixed ligand (so-called synergistic) extraction systems involving 1, 10-phenanthroline (phen) and 8-quinolinol (HOx). Using a mixture of HOx and phen significantly enhanced the difference between adjacent lanthanide ions and facilitated their separation.

Date: August 1, 1979

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Studies of the effect of selected nondonor solvents on coal liquefaction yields

The objective of this research program was to evaluate the effectiveness of selected nondonor solvents (i.e., solvents that are not generally considered to have hydrogen available for hydrogenolysis reactions) for the solubilization of coals. Principal criteria for selection of candidate solvents were that the compound should be representative of a major chemical class, should be present in reasonable concentration in coal liquid products, and should have the potential to participate in hydroge… more

Date: September 1, 1983

Creator: Jolley, R. L.; Rodgers, B. R.; Benjamin, B. M.; Poutsma, M. L.; Douglas, E. C. & McWhirter, D. A.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Advanced soluble hydroliquefaction and hydrotreating catalysts

The purpose of the present program is to develop soluble analogs of surface confined catalysts that can be impregnated directly into the coal structure at low temperatures. This approach should avoid problems related to surface area dependence, a two phase (surface-liquid) reaction system and, mass transport limitations.

Date: November 22, 1991

Creator: Laine, R.M. (Michigan Univ., Ann Arbor, MI (United States). Dept. of Materials Science and Engineering) & Stoebe, T. (Washington Univ., Seattle, WA (United States). Dept. of Materials Science and Engineering)

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Preparation of gallium-68 radiopharmaceuticals for positron tomography. Progress report, November 1, 1978-October 31, 1979

Although the germanium-gallium generator is probably the only source of positron-emitting radionuclides that would enable the wide application of positron tomography, the generator system in use suffers from several major disadvantages. The most important of these is that the generator is eluted with EDTA, and EDTA forms a very strong chelate with gallium. In order to produce radiopharmaceuticals other than gallium-68 EDTA it is necessary to break the stable EDTA complex and remove all the EDTA… more

Date: June 1, 1978

Creator: Welch, M. J.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Control of catalytic hydrotreating selectivity with ammonia

The hydrogenation of phenanthrene in the presence of 24 kPa of ammonia was studied during the hydrodenitrogenation (HDN) of quinoline on a sulfided NiMo/Al{sub 2}O{sub 3} catalyst at 360{degrees}C, 6.9 MPa total H{sub 2} pressure in a vapor phase tubular reactor. Ammonia, through competitive adsorption, reduced the formation of phenanthrene hydrogenated products and the hydrocracking of 9,10-dihydrophenanthrene to biphenyl. The effects occur largely when the HDN reactions are substantially comp… more

Date: January 1, 1991

Creator: Satterfield, C. N. & Lee, C. M.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Catalysis and co-catalysis of bond cleavages in coal and coal analogs. [N,N-Dimethylaniline]

Catalytic hydrogenolysis and thermal fragmentation of coal-related compounds are covered in this report. Data are tabulated for the following processes: (1) Transfer Hydrogenolysis in Tetralin at 450{degrees}C in Stainless Steel Reactors; (2) Effects of Diphenylamine on Fragmentation of 1,1-Dibenzyl-1,4-dihydronaphthalene at 150{degrees}C; (3) Effect of Diphenylamine on Rate of Fragmentation of 1,1-Di-p-tolyl-1,4-dihydronaphthalene at 150{degrees}C; (4) Fragmentation of 1,1-Di-(4-chlorobenzyl)-… more

Date: January 1, 1992

Creator: Miller, B.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Advanced soluble hydroliquefaction and hydrotreating catalysts

The purpose of the present program is to develop soluble analogs of surface confined catalysts that can be impregnated directly into the coal structure at low temperatures. This approach should avoid problems related to surface area dependence, a two phase (surface- liquid) reaction system and, mass transport limitations.

Date: January 31, 1992

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Mild gasification of Usibelli coal in an inclined fluidized-bed reactor

Results of mild gasification tests of minus 16-mesh Usibelli coal in an inclined fluidized-bed reactor are described in this report. The minus 16-mesh fraction was separated from the coal by screening. The coal was dried to zero moisture content, and about 2 wt % of the volatiles was removed as gas by partial decarboxylation using a 100-lb/hr inclined fluidized-bed dryer. The dried coal was subjected to mild gasification at maximum temperatures of 1050 to 1250{degrees}F (566 to 677{degrees}C) a… more

Date: February 1, 1991

Creator: Merriam, N. W.; Thomas, K. P. & Cha, C. Y.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Enthalpy measurement of coal-derived liquids. Technical progress report, May-July 1981. [186 to 732/sup 0/F and 75, 100, and 200 psia]

Enthalpy measurements were initiated on the model compound quinoline. Preliminary results are presented for the temperature region 186 to 732/sup 0/F along isobars of 75, 100, and 200 psia.

Date: July 15, 1981

Creator: Kidnay, A. J. & Yesavage, V. F.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Control of catalytic hydrotreating selectivity with ammonia

Research continued on catalytic hydrotreating selectivity with ammonia. In the last quarterly we presented results of the hydrodenitrogenation (HDN) of 8-OH quinoline 8-hydroxyquinoline (8HQ) and showed that three routes are involved beyond those encountered in the HDN of quinoline. We have now developed a new kinetic model for this reaction, which is adapted from Satterfield and Smith (1986) as applied to quinoline. Some basic assumptions of the model include: (1) the Langmuir-Hinshelwood kine… more

Date: January 1, 1990

Creator: Satterfield, C.N. & Lee, Chung M.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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CHO/HGPRT mutation assay. IV. Progress with quantitative mutagenesis and mutagen screening

Work is summarized on development and application of their mutation system to study mutagenicity of various physical and chemical agents which bear profound environmental concerns. Eleven alkylating chemicals, nineteen heterocyclic nitrogen mustards, nineteen metallic compounds, nineteen miscellaneous compounds were reviewed for mutagencity. Some results remain to be confirmed. Mutagencity of various classes of promutagens were also discussed; including 27 polycyclic aromatic hydrocarbons, 16 n… more

Date: January 1, 1979

Creator: Hsie, Abraham W.; O'Neill, J. Patrick; San Sebastian, Juan R. & Brimer, Patricia A.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Ruthenium-97 labeled compounds: a new class of radiopharmaceuticals. [Preparation, tissue distribution, and imaging studies]

The excellent physical properties of 2.9 day ruthenium-97 (216 KeV ..gamma.., 86%) combined with its chemical reactivity were exploited for the design of versatile new radiopharmaceuticals. Complexes of ruthenium (III and IV) with citrate, DTPA, MDP, EHDP, PYP, ethylenediaminetetramethylene phosphonate (EDTMP), and oxine 7-carboxylic acid acetate, and of ruthenium (II) with 1,10-phenanthroline and 3,4,7,8-tetramethyl 1,10-phenanthroline were prepared and studied. Preparation of a ruthenium--sul… more

Date: January 1, 1978

Creator: Srivastava, S. C.; Som, P.; Meinken, G.; Sewatkar, A. & Ku, T. H.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Advanced, soluble hydroliquefaction and hydrotreating catalysts

Present hydroliquefaction of coal suffers from required high temperatures and high hydrogen pressures. Surface confined, organometallic catalysists are effective for hydrogenation and HDN of coal model compounds such as quinoline, but not of coal itself. Purpose of this program is to develop soluble analogs of surface confined catalysts that can be impregnated directly into the coal structure at low temperatures. The program consists of 3 major tasks: preparation of candidate HPA (heteropolyani… more

Date: September 8, 1992

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Hydrogen bonding in asphaltenes and coal. Progress report, April 1, 1978--June 30, 1978

A direct calorimetric method has been used to determine simultaneously the molar enthalpy, ..delta..H/sup 0/, and equilibrium constant, K, for quinoline (QU) interaction with coal-derived asphaltenes (A), acid/neutral (AA) and base (BA) components of A, silylated asphaltenes (A(TMS)) and heavy oil (HO) fractions in solvent C/sub 6/H/sub 6/. Solvent fractionated A and HO fractions were from three centrifuged liquid product (CLP) samples prepared in the 450 kg (/sup 1///sub 2/ ton) per-day Proces… more

Date: June 1, 1978

Creator: Li, N. C. & Tewari, K. C.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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The chemical enhancement of the triboelectric separation of coal from pyrite and ash: A novel approach for electrostatic separation of mineral matter from coal

Arthur D. Little, Inc., under contract to the US DOE Pittsburgh Energy Technology Center, has developed a triboelectric separation device for coal beneficiation, that employs an entrained-flow, rotating-cylinder concept. The described apparatus has been used to test the efficacy of chemical pretreatment and in-situ treatment of coal on separation efficiency. Coal particle entrainment is achieved with gaseous carbon dioxide and particle collection is accomplished by an electrostatic plate separa… more

Date: February 1, 1992

Creator: Gustafson, R.M.; DiMare, S. & Sabatini, J.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Preparation of gallium-68 radiopharmaceuticals for positron tomography. Progress report, November 1, 1977-October 31, 1980

Although the germanium-68 ..-->.. gallium-68 generator is probably the only source of positron-emitting radionuclides that could enable the widespread application of positron tomography, the commercially available /sup 68/Ga//sup 68/Ge generator system suffers from several major disadvantages. The most important of these is that the generator is eluted with EDTA, which forms a very strong chelate with gallium. In order to produce radiopharmaceuticals other than /sup 68/Ga-EDTA, it is first nece… more

Date: June 1, 1980

Creator: Welch, M.J.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Rate enhancement for catalytic upgrading coal naphthas

The amount of individual nitrogen and sulfur presented in the feed and hydrotreated Illinois [number sign]6 naphtha were determined. The major nitrogen class in the naphtha are anilines. The major sulfur components identified are thiophenes and benzothiophenes. The aniline and quinoline is harder to remove than pyridine. The aniline and pyridine, without any carbon substituted, is the easiest one to remove in their class. The quinoline, without any carbon substituted, is approximately as hard a… more

Date: January 1, 1992

Creator: Liaw, Shuh Jeng; Keogh, R.A. & Davis, B.H.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Mutagenic activity and heterocyclic amine content of the human diet

The mutagenic activity and the mass amount of heterocyclic amines responsible for the mutagenic activity have been measured in some cooked foods. Cooked meats are the predominant source of mutagenic activity in the diet with values ranging from 0 to 10,000 revertants per gram reported in the Ames/Salmonelia test with strain TA98. Several heterocyclic amines are present and have been quantified using solid-phase extraction followed by HPLC. Frying at higher temperatures and for longer times prod… more

Date: January 15, 1993

Creator: Knize, M. G.; Dolbeare, F. A.; Cunningham, P. L. & Felton, J. S.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Heteropolyanions: Soluble precatalysts for quinoline hydrogenation

Initial efforts to evaluate heteropolyanions as potential precatalysts for quinoline hydrogenation are described. Reaction parameters are developed that define a baseline for quinoline hydrogenation to tetrahydroquinoline through exploration of the effects of variations in temperature, H{sub 2 pressure}, catalyst and quinoline concentrations on the catalytic activity.

Date: September 1, 1992

Creator: Hoppe, M. L.; Koo, Sang-Man; Ryan, D. & Laine, R. M.

Item Type: Article

Partner: UNT Libraries Government Documents Department