Correlation between the Roga index and the free-swelling index of coal
Literature data on the properties of fractions of different density obtained by liquid centrifuging of metamorphic coal reveal the relation between the Roga index RI and the free-swelling index SI , which describe different aspects of clinkering. A correlation is obtained between RI and SI , whose c...
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| Published in | Coke and chemistry (New York, N.Y.) Vol. 52; no. 11; pp. 473 - 476 |
|---|---|
| Main Author | |
| Format | Journal Article |
| Language | English |
| Published |
Heidelberg
Allerton Press, Inc
01.11.2009
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| Subjects | |
| Online Access | Get full text |
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| Abstract | Literature data on the properties of fractions of different density obtained by liquid centrifuging of metamorphic coal reveal the relation between the Roga index
RI
and the free-swelling index
SI
, which describe different aspects of clinkering. A correlation is obtained between
RI
and
SI
, whose characteristics depend on the metamorphic stage of the coal. The results suggest that
RI
should be replaced by
SI
in dividing coal with a plastic-layer thickness
y
< 6 mm (D, SS, and TS coal) into subgroups, within the framework of the unified coal classification (State Standard GOST 25543-88). |
|---|---|
| AbstractList | Literature data on the properties of fractions of different density obtained by liquid centrifuging of metamorphic coal reveal the relation between the Roga index
RI
and the free-swelling index
SI
, which describe different aspects of clinkering. A correlation is obtained between
RI
and
SI
, whose characteristics depend on the metamorphic stage of the coal. The results suggest that
RI
should be replaced by
SI
in dividing coal with a plastic-layer thickness
y
< 6 mm (D, SS, and TS coal) into subgroups, within the framework of the unified coal classification (State Standard GOST 25543-88). |
| Author | Gagarin, S. G. |
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| CitedBy_id | crossref_primary_10_1051_metal_2023050 crossref_primary_10_1007_s12666_019_01778_x crossref_primary_10_1016_j_jaap_2021_105020 crossref_primary_10_3103_S1068364X10060025 crossref_primary_10_3103_S1068364X10010011 |
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| Keywords | Coal Sample Inertinite State Standard GOST Metamorphic Development Vitrinite |
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| References | PanchenkoS.I.PopovaM.E.KozhevnikovaO.P.Microcomponents Determining the Clinkering Properties of CoalTekhnologiya koksovaniya uglei Vostoka SSSR: Tr. VUKhINa1948MoscowMetallurgizdat3855(Coking Technology for Coal from the Eastern Soviet Union: Proceedings of the Eastern Coal-Chemistry Institute) AvgushevichI.V.BronovetsT.M.GolovinG.S.Standartnye metody ispytaniya uglei. Klassifikatsii uglei2008MoscowNTK Trek(Standard Coal-Testing Methods: Coal Classification) JasienkoS.RogL.Coal Science and Technology: Proceedings of Eighth International Conference on Coal Science1995AmsterdamElsevier Science262265 GryaznovN.S.Osnovy teorii koksovaniya1976MoscowMetallurgiya(Principles of Coking Theory) EreminI.V.BronovetsT.M.Marochnyi sostav uglei i ikh ratsional’noe ispol’zovanie1994MoscowNedra(Rank Composition of Coal and Its Rational Use) SklyarM.G.Fiziko-khimicheskie osnovy spekaniya uglei1984MoscowMetallurgiya(Physicochemical Principles of Coal Sintering) Gagarin, S.G., Relation between Coal Structure and Thermoplasticity, Koks Khim., 2002, no. 9, pp. 2–7. KharitonovG.V.AmmosovI.I.NazarovaN.I.Relation between the Petrographic and Chemical Composition of Coal and Its Chemical and Technological PropertiesKhimiya i petrologiya uglei: Tr. IGI1959MoscowIzd. AN SSSR4550(Chemistry and Petrology of Coal: Proceedings of the Institute of Mineral Fuel) Bronovets, T.M. and Gagarin, S.G., Relation between Clinkering Characteristics of Coal, Khim. Tverd. Topl., 2002, no. 1, pp. 40–50. 9117_CR5 9117_CR4 N.S. Gryaznov (9117_CR2) 1976 S. Jasienko (9117_CR7) 1995 I.V. Avgushevich (9117_CR1) 2008 I.V. Eremin (9117_CR6) 1994 M.G. Sklyar (9117_CR3) 1984 G.V. Kharitonov (9117_CR9) 1959 S.I. Panchenko (9117_CR8) 1948 |
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| Snippet | Literature data on the properties of fractions of different density obtained by liquid centrifuging of metamorphic coal reveal the relation between the Roga... |
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| SubjectTerms | Chemistry Chemistry and Materials Science Coal Industrial Chemistry/Chemical Engineering |
| Title | Correlation between the Roga index and the free-swelling index of coal |
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