Anthracite coal dust

SYNONYMS anthracite coal dust, anthracite particles, bituminous coal dust, coal facings, coal-milled, lignite coal dust, sea coal. 

Synonyms/Trade Names Anthracite coal dust, Bituminous coal dust, Lignite coal dust... 

Primary cultures of rat type II pulmonary epithelial cell responded to an exposure to anthracite coal dust PSOC 867 (1.65 pim median particle size ... 

Special types of carbon black find a use in certain applications. Anthracite coal dust, Keystone and Austin Black, exhibits good chemical resistance, resilience, and low specific gravity for dynamic seals. Synthetic graphite is also used for this type of application for the same reason and it also reduces the coefficient of friction for better wear resistance. 

Anthracite Particles(Coal Dust). Their fire expin hazard, as well as toxicity are discussed in Sax(1957),304... 

Coal, Anthracite Coal, Bituminous Coal Dust Coke, Petroleum Pitch Lignosulfonate Water Pitch Briquetter Disc Pelletizer TUrbulator Briquetter... 

CA 34, 3091 (1940) (Explosibility of 22 Coal dusts contg 8 to 31% volatile matter) M)W. Gassmann, Gliickauf 79, 369 77 (1943) (A review of firedamp explns caused in recent years by blasting in Dortmund mines) N)G.S.Scott, USBurMines Bull 455 (1944) CA 38, 6072 (1944) (Anthracite mine fires their behavior control) 0)A.van Tiggelen, Bull Belg 55, 202-44 (1946) CA 41, 4363 (1947) (Plate... 

Explosibility of semi-anthracite, low-volatile bituminous-coal, and medium-volatile bituminous-coal dusts. U. S. Bur. Mines Rept. Investigations 3489. 

Uses of bituminous coals as ingredients of expls are discussed under Coal Dust and Its Uses. Anthracitic (also known as hard coal) is a variety of coal contg the highest percent of fixed carbon (86 to 98%) and very little of volatile matter it is blk in color with a brilliant luster it burns with a short blue flame giving off very little smoke or odor used as household industrial fuel,... 

In the continuous sintering process, a mixture of ore dust and coke breeze or anthracite coal is delivered to a traveling grate in a continuous bed about 18" (0.46 m) deep passing under an ignition arch or ignition hood of burners for induration. (See fig. 4.14.)... 

Anthracite coal is coal of the highest metamorphic rank it is also known as hard coal and has a brilliant luster being hard and shiny. It can be rubbed without leaving a familiar coal dust mark on the finger and can even be polished for use as jewelry. Anthracite coal burns slowly with a pale blue flame and may be used primarily as a domestic fuel. 

In addition to the economic and health hazards, coal dust can present serious explosion hazards. Certain bituminous coals and anthracites also continue to release measurable quantities of methane gas for days, and sometimes weeks, after they have been mined, which increases the possibility of explosion. Provision of efficient ventilation and restriction of electrical or thermal sources of ignition are required by regulation. 

Interferon induction by influenza virus in monkey kidney (LLC-MKj) cell monolayers pre-treated with coal dust was inhibited in relation to coal rank (Hahon 1983). Maximal inhibition of viral interferon induction was noted with high rank coal and the degression of this activity was related to coal s position in the carboniferous series anthracite, bituminous, subbituminous, lignite, and peat. Adsorption of poly(4-vinylpyridine-M-oxide) to bituminous coal dust from the Pittsburgh seam, Cambria County, Pa., not only occurred at a more rapid rate than to cell monolayers, but also less polymer was required to pretreat coal dust than cell mono-layers to achieve comparable amelioration of interferon production (Hahon 1976). 

While Ray et al. (1951) did not find any inhibitory effect on the action of quartz by anthracite and coal mine dusts mixed with quartz when introduced by intratracheal instillation in the lungs of rats, Rehn et al. (1995) raised the question whether the formation of reactive oxygen species by macrophages engulfing coal mine dust containing free silica could be depressed by the coal part. 

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