Zobrazeno 1 - 10
of 17
pro vyhledávání: '"LEON P. MOORE"'
Publikováno v:
Fuel. 57:541-548
Some insight into the chemical nature of coals and the coalification process was obtained by detailed analyses of the organic constituents of three coals — a lignite, a bituminous, and an anthracite coal. Organic compounds trapped in the coal matri
Publikováno v:
Fuel. 60:77-82
To determine optimum conditions, the aqueous Na 2 Cr 2 O 7 oxidation as applied to coals, coal products, model compounds and polymers was investigated in detail. It was found that this oxidation preferentially attacks aliphatic and alicyclic methylen
Autor:
Martin H. Studier, R. Hayatsu, Randall E. Winans, Robert C. Duty, Robert G. Scott, Leon P. Moore
Publikováno v:
Fuel. 59:97-101
This study reports the results from the oxidation, using sodium dichromate, of a solvent-refined lignite (SRL) and its feed coal and the effects of varying the ratio of oxidant to coal. The numerous aromatic and heteroaromatic carboxylic acids isolat
Publikováno v:
Geochimica et Cosmochimica Acta. 39:471-488
Two samples of the Murchinson C2 chondrite were analyzed for organic nitrogen compounds, using mass spectrometry in combination with paper and thin-layer chromatography. Under mild extraction conditions (water or formic acid), only alphatic amines an
Autor:
Leon P. Moore, Randall E. Winans, Martin H. Studier, Robert G. Scott, R.L. McBeth, R. Hayatsu
Publikováno v:
Nature. 278:41-43
ALTHOUGH lignins are major constituents of plants from which coals are derived, their roles in the coalification process and resulting coal structures have not been defined. On the basis of chemical and biological degradations, lignins are considered
Publikováno v:
Nature. 275:116-118
THE characterisation of trapped organic compounds which occur in geological materials such as coal and oil shale can provide an insight into both the origin of the organic matter and its subsequent modification through chemical reactions. Much work h
Publikováno v:
Nature. 257:378-380
THE organic matter in coal consists largely of a macromolecular material of complex and variable composition. When coal is pyrolysed, a large fraction is converted to char, and a number of complex aromatic compounds are formed. Because of the extensi
Autor:
Leon P. Moore, Randall E. Winans, R. Hayatsu, Robert G. Scott, Martin H. Studier, R.L. McBeth
Publikováno v:
Science (New York, N.Y.). 207(4436)
Seven phenolic acids and many nonphenolic organic acids, including large amounts of meta-hydroxy (3-hydroxy) benzoic acid and 3-hydroxy-1,5-benzene-dicarboxylic acid, were obtained from the organic polymer of the Murchison C2 chondrite upon oxidation
Publikováno v:
Organic Chemistry of Coal ISBN: 9780841204270
Aqueous sodium dichromate has been found to be a selective oxidant and numerous polyaromatic units, which resulted from the oxidation of a bituminous coal, have been reported. These products are believed to be indigenous to the coal. The effects of o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d96b3c7147ac54a422abd7bad72df099
https://doi.org/10.1021/bk-1978-0071.ch007
https://doi.org/10.1021/bk-1978-0071.ch007
Autor:
Randall E. Winans, R.L. McBeth, Leon P. Moore, R. Hayatsu, Martin H. Studier, Robert G. Scott
Publikováno v:
Scopus-Elsevier
Coal Structure ISBN: 9780841205246
Coal Structure ISBN: 9780841205246
Treating a bituminous coal with potassium hydroxide in glycols at 250/sup 0/C yields a largely soluble product that results from the reduction of polycyclic aromatics and the cleavage of aryl ether linkages. The reduction in aromaticity was demonstra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f858dff36a0be58406be89e3dee4dc11
http://www.scopus.com/inward/record.url?eid=2-s2.0-0018297227&partnerID=MN8TOARS
http://www.scopus.com/inward/record.url?eid=2-s2.0-0018297227&partnerID=MN8TOARS