refined tar

refined tar

[ri′fīnd ′tär]
(materials)
A tar from which water has been extracted by evaporation or distillation.

refined tar

1. Tar from which water has been evaporated or distilled until a desired consistency is reached.
2. A bituminous product produced by fluxing tar residuum with tar distillate.
References in periodicals archive ?
energy independence, because most refined tar oils would be shipped overseas and little, if any, would end up in the gas tanks of U.
There is no assurance whatsoever that the refined tar sands oil in Gulf Coast refineries will even get to the motorists here.
The less refined tar products, such as crude coal tar, are considered the most effective tar medications for psoriasis, but their potency makes them available only by prescription.
He has also experimented with the waste products of oil refineries - the all-but-worthless |syncrude' coke waste from refined tar sands, and petroleum coke.