Results 131 to 140 of about 66,438 (265)
Notes on the lignite deposits of the West [PDF]
American Journal of Sciencen ...
openaire +2 more sources
Sporae dispersae of the Lignites from Cannanore beach on the Malabar coast of India
, 1958 Robert Potonié, S.C.D. Sah
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Fractal and FractionalBased on the uniaxial compression tests and in situ CT scanning experiments of lignite with different dehydration times and the fractal theory, this paper qualitatively and quantitatively investigated the influence of the dehydration effect on the ...
Shuai Yan +4 more
doaj +1 more source
Surfactant-assisted liquefaction of particulate carbonaceous substances [PDF]
, 1978 A slurry of carbonaceous particles such as coal containing an oil soluble polar substituted oleophilic surfactant, suitably an amine substituted long chain hydrocarbon, is liquefied at high temperature and high hydrogen presence.
Hsu, G. C.
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The Miocene Bükkábrány Fossil Forest in Hungary – field observations and project outline [PDF]
, 2008 The oldest, standing forest preserved as wood has been found at Bükkábrány, Hungary. An open-pit mine working Upper Miocene (Pannonian) lignite revealed sixteen stumps, 1.8 to 3.6 m diameter at base, preserved up to 6 m height, standing on top of the ...
Kázmér, Miklós
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Contributions to economic geology, 1909, Part II, Mineral fuels--Coal and Lignite [PDF]
, 1911 Charles Butts
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Super-heated Steam Drying: an Innovation of Clean Coal Technology for Lignite [PDF]
, 2011 A comprehensive overview of the status of lignite pre-drying technology is given in this study. The practical problems of high energy consumption, high investment and poor safety exist in the lignite drying using the traditional thermal drying, for the ...
Chen, Fuxiang +8 more
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Analysis of the relationship between cost, price and profit in lignite extraction [PDF]
From the point of view of coal consumers, which is visible to the naked eye is the price and size and its size dynamics is necessary for attention to anyone, due the fact that directly or indirectly, everyone in the situation of power buyer.
ciumag, anca, ciumag, marin
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