anthracite

enUK

an·thra·cite

A0331300 (ăn′thrə-sīt′)n. A dense, shiny coal that has a high carbon content and little volatile matter and burns with a clean flame. Also called hard coal.

[Probably ultimately from Greek anthrakitis, a kind of coal, from anthrax, anthrak-, charcoal.]

an′thra·cit′ic (-sĭt′ĭk) adj.

anthracite

(ˈænθrəˌsaɪt) n (Geological Science) a hard jet-black coal that burns slowly with a nonluminous flame giving out intense heat. Fixed carbon content: 86–98 per cent; calorific value: 3.14 × 10⁷–3.63 × 10⁷ J/kg. Also called: hard coal [C19: from Latin anthracītes type of bloodstone, from Greek anthrakitēs coal-like, from anthrax coal, anthrax] anthracitic adj

an•thra•cite

(ˈæn θrəˌsaɪt)

n. a hard coal low in volatile hydrocarbons and burning with little smoke or flame. [1810–15; probably < French < Latin (Pliny) anthracītis kind of coal. See anthracene, -ite¹] an`thra•cit′ic (-ˈsɪt ɪk) an′thra•cit`ous (-ˌsaɪ təs) adj.

an·thra·cite

(ăn′thrə-sīt′) A hard, shiny coal that has a high carbon content. It is valued as a fuel because it burns with a clean flame and without smoke or odor, but it is much less abundant than bituminous coal. Compare bituminous coal, lignite.

Thesaurus

Noun

anthracite - a hard natural coal that burns slowly and gives intense heatanthracite coal, hard coalcoal - fossil fuel consisting of carbonized vegetable matter deposited in the Carboniferous period

Translations

无烟煤

anthracite

(ˈӕnθrəsait) noun a kind of very hard coal that burns almost without any smoke or flames. 无烟煤

anthracite

enUK

anthracite

(ăn`thrəsīt'): see coalcoal,
fuel substance of plant origin, largely or almost entirely composed of carbon with varying amounts of mineral matter. Types

There is a complete series of carbonaceous fuels, which differ from each other in the relative amounts of moisture, volatile matter,
..... Click the link for more information. .

Anthracite

humic coal of a high degree of metamor-phism. With a microscope plant residues can be discerned.

Anthracite is black, often with a grayish shade, with an occasional spotty iridescence. It gives a velvety black line on a porcelain plate. Its luster is high and metallic. It is highly viscous, does not sinter, and conducts electricity well. It has a strong, metallic luster. Its highest hardness on the mineralogical scale is 2.0–2.5; its density of organic mass is 1,500–1,700 kg/m³. Heat of combustion of organic mass is 33.9–34.8 megajoules per kg (8,100–8,350 kcal/kg). Anthracite has a low analytical moisture content of 1–3 percent, and its combustible mass contains up to 9 percent volatiles, 93.5–97.0 percent carbon, 1–3 percent hydrogen, and 1.5–2.0 percent oxygen and nitrogen. Anthracite containing more than 97 percent carbon in the combustible mass is called superanthracite. According to the volume yield of volatiles, it is divided into two commercial grades: semianthracite, containing 220–330 liters per kg, and anthracite as such, with a volume yield below 220 liters per kg.

Anthracite occurs in the form of beds of different thicknesses, usually intermediate and thin—rarely up to 10–40 m thick—in deposits of many geological systems from the Devonian to the Triassic. The total anthracite deposits are comparatively small and amount to approximately 3 percent of the world’s coal reserve. The largest quantity of anthracite is located in the USSR (the Donets and Kuznets basins, for example). Considerable anthracite deposits exist in China and the USA. Anthracite is used as a high-quality energy-producing fuel (according to its uses, a distinction is made in industry between gas-generating anthracite and anthracite for the production of calcium and carbide) and also in the manufacture of electrodes and semiconductors. Special grades of anthracite which do not crack during combustion are used in casting and blast furnace processes.

REFERENCES

Ammosov, I. I., and Tan Siu-i. Stadii izmeneniia uglei i parageneticheskie othosheniia goriuchikh iskopaemykh. Moscow, 1961.
Zhemchuzhnikov, Iu. A., and A. I. Ginzburg. Osnovy petrologii uglei. Moscow, 1960.

A. K. MATVEEV

anthracite

[′an·thrə‚sīt] (mineralogy) A high-grade metamorphic coal having a semimetallic luster, high content of fixed carbon, and high density, and burning with a short blue flame and little smoke or odor. Also known as hard coal; Kilkenny coal; stone coal.

anthracite

a hard jet-black coal that burns slowly with a nonluminous flame giving out intense heat. Fixed carbon content: 86--98 per cent; calorific value: 3.14 × 10⁷--3.63 × 10⁷ J/kg

anthracite

an·thra·cite

anthracite

an•thra•cite

an·thra·cite

anthracite

anthracite

anthracite

Anthracite

REFERENCES

anthracite

anthracite

anthracite

Synonyms for anthracite

noun a hard natural coal that burns slowly and gives intense heat

Synonyms

Related Words