Help


[permalink] [id link]
+
Page "Coal tar" ¶ 14
from Wikipedia
Edit
Promote Demote Fragment Fix

Some Related Sentences

residue and from
Nevertheless, because the Cost Section has felt impelled to make some kind of a distribution of total costs, it has apportioned this residue, which it sometimes calls `` burden '', among the units of carload traffic on a basis ( partly ton, partly ton-mile ) which is concededly quite arbitrary from the standpoint of cost determination.
The residue from soybean processing goes mainly into animal feeds.
In American English, asphalt ( or asphalt cement ) is the carefully refined residue from the distillation process of selected crude oils.
Annex II lists other wastes such as household wastes and residue that comes from incinerating household waste.
Despite testimony from " Soldier F " that he had fired at a man holding and firing a pistol, Widgery acknowledged that the photographs showed Doherty was unarmed, and that forensic tests on his hands for gunshot residue proved negative.
It has been argued that firearms residue on some deceased may have come from contact with the soldiers who themselves moved some of the bodies, or that the presence of lead on the hands of one ( James Wray ) was easily explained by the fact that his occupation involved the use of lead-based solder.
* Discovery of residue from fermented beverage consumed up to 9, 000 years ago in Jiahu, Henan Province, China.
The sweet chocolate residue found in jars from the site of Puerto Escondido in Honduras from around 1100 BC is the earliest found evidence of the use of cacao to date.
An early Classic ( 460 – 480 AD ) period Mayan tomb from the site of Rio Azul, Guatemala, had vessels with the Maya glyph for cacao on them with residue of a chocolate drink.
Other reasons include: a ) changes in plant canopy caused by shifts in plant biomass production associated with moisture regime ; b ) changes in litter cover on the ground caused by changes in both plant residue decomposition rates driven by temperature and moisture dependent soil microbial activity as well as plant biomass production rates ; c ) changes in soil moisture due to shifting precipitation regimes and evapo-transpiration rates, which changes infiltration and runoff ratios ; d ) soil erodibility changes due to decrease in soil organic matter concentrations in soils that lead to a soil structure that is more susceptible to erosion and increased runoff due to increased soil surface sealing and crusting ; e ) a shift of winter precipitation from non-erosive snow to erosive rainfall due to increasing winter temperatures ; f ) melting of permafrost, which induces an erodible soil state from a previously non-erodible one ; and g ) shifts in land use made necessary to accommodate new climatic regimes.
A problem for firearms is the accumulation of waste products from the partial combustion of propellants, metallic residue from the bullet itself, and small flecks of the cartridge case, collectively known as fouling or gunshot residue.
In addition to being a nuisance, the residue from burnt black powder is hygroscopic and with the addition of moisture absorbed from the air, this residue forms a caustic substance.
In particular, powder residue patterning is used by law enforcement to validate the distance between the firearm and the person shot using known facts from the manufacturer about powder type, content, volume, muzzle velocity, and other ballistic factors.
Afterwards, the radioactive debris and soils were placed in a landfill on the island, along with residue from Agent Orange containers returned from Southeast Asia after the Vietnam War, PCBs, PAHs, dioxins, and sarin nerve gas from the Soviet Union and East Germany.

residue and distillation
* Coke ( fuel ), a solid carbonaceous residue derived from destructive distillation of coal
* Petroleum coke, a solid, carbon-rich residue derived from distillation of crude oil
If two solvents can form a negative azeotrope, then distillation of any mixture of those constituents will result in the residue being closer in composition to the azeotrope than the original mixture.
Because this process has removed a greater fraction of Y from the liquid than it had originally, the residue must be poorer in Y and richer in X after distillation than before.
No amount of distillation, however, can make either the distillate or the residue arrive on the opposite side of the azeotrope from the original mixture.
The mixture of diterpenes and triterpenes that is left as residue after turpentine distillation is sold as rosin,
The process involved vacuum distillation of the crude material followed by filtration of the still residue through bone char.
An oil tanker taking on bunker fuel. Fuel oil is a fraction obtained from petroleum distillation, either as a distillate or a residue.
Another reason vacuum distillation is used is that compared to steam distillation there is a lower level of residue build up.
* Reduce the viscosity of the feed stream: Typically this is the residue from vacuum distillation of crude oil but can also be the residue from hydroskimming operations, natural bitumen from seeps in the ground or tar sands, and even certain high viscosity crude oils.
The following is a typical quality for the vacuum distillation residue of Arabian light ( a crude oil from Saudi Arabia and widely refined around the world ):
Carbonization or carbonisation is the term for the conversion of an organic substance into carbon or a carbon-containing residue through pyrolysis or destructive distillation.
* Vacuum distillation to separate lighter fractions, leaving behind a residue with molecular weights over 400.
* De-asphalting the vacuum distillation residue to remove the highest molecular weight alicyclic compounds, which precipitate as black / brown asphaltenes when the mixture is dissolved in C < sub > 3 </ sub >– C < sub > 7 </ sub > alkanes, leaving " de-asphalted oil " ( DAO ) in solution.
A mixture of water and salt can be separated by distillation, with water as the distillate and salt as the solid residue.
The balance of liquid product is fractionated by distillation yielding various boiling range products and an ashy residue.

residue and coal
People who saw the bituminous sands during this period were familiar with the large amounts of tar residue produced in urban areas as a by-product of the manufacture of coal gas for urban heating and lighting.
The non-toxic, non-staining, reusable modeling compound that came to be known as " Play-Doh " was originally a pliable, putty-like substance concocted by Noah McVicker of Cincinnati-based soap manufacturer Kutol Products ; it was devised at the request of Krogers Grocery, which wanted a product that could clean coal residue from wallpaper.
Prehistoric clinker outcrops in the American West are the result of prehistoric coal fires that left a residue that resists erosion better than the matrix, leaving buttes and mesa.
The name " clinker " is also used for the hardened residue of coal fires, that can have a similar texture.
The air-line route will pass through a country ... whose bowels have been laboring in vain with untold and unknown wealth of minerals, including coal and oysters, since the creation of the world .... At least one-tenth of the entire distance will be a dead level ; on the residue of the route, there may be some hills and hollows ....
There is a residue of unreactive tarry compounds mixed with ash from the coal and catalyst.
The hydrogen required for the process can be also produced from coal or the residue by steam reforming.
Ashy residue goes to a Kerr-McGee CSDA unit which yields additional liquid product and a high-ash material containing unreacted coal and heavy residuum, which in a commercial plant would be gasified to make the H2 needed to feed the process.
The works were a major employer for the area and the location where the first Bessemer blast furnace was installed, which allowed the invention of Tarmac using burnt coal residue.

residue and tar
The dholak's higher-pitched head is a simple membrane while the bass head, played usually with the left hand, has a compound syahi to lower the pitch and enable the typical Dholak sliding sound (" giss " or " gissa "), often the caked residue of mustard oil pressing, to which some sand and oil or tar may be added.
The residue cake from the mustard oil pressing is mixed with sand, mustard oil and ( sometimes ) tar.
Wood can be used to produce guaiacol, tar, terpenes, turpentine and methanol together with a solid residue of charcoal.
** a misnomer for the sticky buildup on cannabis pipes, which should be called tar, or pipe residue, as it is the buildup of the byproducts of plant matter undergoing combustion

0.384 seconds.