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Misra, S. K.
- FTIR Study of Lower Gondwana Coal from Talcher, Orissa
Abstract Views :215 |
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Authors
Affiliations
1 Regional Research Laboratory, Bhubaneswar - 751013, Orissa, IN
1 Regional Research Laboratory, Bhubaneswar - 751013, Orissa, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 51, No 3 (1998), Pagination: 371-376Abstract
Functional groups and mineral matters in Talcher coal have been identified with the help of FTIR. Oxygen bearing functional group mostly hydroxyl is common in bulk as well as different lithotypes. Minerals such as kaolinite, quartz, goethite etc. have been identified from the spectra. The functional groups data have been used to interpret the conditions of formation of the different lithotypes.Keywords
FTIR, Gondwana, Coal, Talcher, Orissa.- Morpho-Chemistry of Some Ferromanganese Samples from Central Indian Ocean Basin
Abstract Views :163 |
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Authors
Affiliations
1 Regional Research Laboratory, Bhubaneswar 751013, IN
1 Regional Research Laboratory, Bhubaneswar 751013, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 35, No 2 (1990), Pagination: 183-188Abstract
This note is aimed at elucidating the relationship between morphology and chemistry of some ferromanganese samples of Central Indian Ocean basin and describing precisely the factors controlling these variations. The samples investigated were dredged from Central Indian Ocean basin at a depth of 4000-5000 m during cruises of SS Fernela (St. F4 and F5), SS Scandy Surveyor (St. SS4, SS5, SS6 and SS8) and RV Sagarkanya (St. SK8) conducted by the National Institute of Oceanography, Goa. Because of certain restrictions, location of sample details have not been mentioned.Keywords
Marine Geology, Ferromanganese Nodules, Indian Ocean.- Distribution of Trace Elements in Coal-Lithotypes from Talcher Coalfield, Orissa
Abstract Views :177 |
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Authors
Affiliations
1 Regional Research Laboratory, Bhubaneswar - 75 1 013, IN
1 Regional Research Laboratory, Bhubaneswar - 75 1 013, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 68, No 4 (2006), Pagination: 675-684Abstract
Trace element distribution in bulk coal and lithotypes viz. durain, fusain, clarain and vitrain in two coal seams of two geological formations of Karharbari and Barakar from Talcher coalfield, Orissa is reported and compared with world coal trace element data. Karharbari coal (seam I) contains higher concentrations of As, Ba, Ce, Cr, Th, U and W than Barakar coal (seam II). On the contrary, coal from seam II has high concentrations of Be, Eu, Hf, Mo, Sb, Sc, Sm, and Zn. In both the formations, durain and clarain contain maximum trace elements including REE in appreciable concentration where as vitrain shows least trace constituents. Positive correlation of ash with Ba, Cs, La, Hf, Th, Rb and Sc indicates inorganic affinity of these trace elements. However Sb, As, Cr and Co show negative relation with ash explaining their organic affinilty.Keywords
Trace Elements in Coal, Barakar, Karharbari, Talcher Coalfield, Orissa.- Importance of Petrographic Study of Non-Coking Coals from Talcher Coal Field, Orissa in Coal Utilisation
Abstract Views :205 |
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Authors
S. K. Misra
1,
J. K. Mohanty
1
Affiliations
1 Regional Research Laboratory, Bhubaneswar - 751 013, IN
1 Regional Research Laboratory, Bhubaneswar - 751 013, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 66, No 4 (2005), Pagination: 475-485Abstract
Talcher coal is non coking and high ash type and presently used for thermal power generation, sponge iron making, cement and chemical industry. Coal beneficiation is being carried out by size reduction followed by washing and gravity separation to reduce the ash content and improve other chemical parameters. Poor washability characteristics of Indian coals in general and Talcher coal in particular and presence of high near gravity materials do not support the conventional washing techniques resulting in below expected quality yield. The role of detailed petrographic studies during processing/benificiation needs special attention in order to improve the quality of coal and competitiveness of the product in the open market.This paper provides general information on petrogmphic findings of coal from different seams presently exposed in Talcher coalfield in terms of lithotype, maceral, mrcrolithotype, mineral matter and rank (vitrinite reflectance). Importance of lithotype, mineral matter and oxidation characteristics of coals with respect to coal preparation /beneficiation and maceral /microlithotypes in combustion has been discussed in detail.
Keywords
Petrography, Non Coking Coal, Utilisation, Talcher Coalfield, Orissa.- Spontaneous Combustion in Coals-a Panacea
Abstract Views :194 |
PDF Views:145
Authors
Affiliations
1 MA/52, G G P Colony, P 0 Rasulgarh, Bhubaneswar - 751 010, IN
2 Regional Research Laboratory, C S I R , Bhubaneswar - 751 013, IN
3 PG Department of Geology, Utkal University, Vani Vihar, Bhubaneswar 752004, IN
1 MA/52, G G P Colony, P 0 Rasulgarh, Bhubaneswar - 751 010, IN
2 Regional Research Laboratory, C S I R , Bhubaneswar - 751 013, IN
3 PG Department of Geology, Utkal University, Vani Vihar, Bhubaneswar 752004, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 64, No 5 (2004), Pagination: 696-702Abstract
No Abstract.- Sequential Leaching of Trace Elements in Coal: a Case Study from Talcher Coalfield, Orissa
Abstract Views :185 |
PDF Views:2
Authors
Affiliations
1 Regional Research Laboratory, Bhubaneswar - 751 013, Orissa, IN
1 Regional Research Laboratory, Bhubaneswar - 751 013, Orissa, IN