In industrial chemistry, black liquor is the spent cooking liquor from the kraft process when digesting pulpwood into paper pulp removing lignin, hemicelluloses and other extractives from the wood to free the cellulose fibers.
The equivalent spent cooking liquor in the sulfite process is usually called brown liquor, but the terms red liquor, thick liquor and sulfite liquor are also used.
Read more about Black Liquor: Composition, History, Usage, U.S. Tax Credit 2007 - 2010
Famous quotes containing the words black and/or liquor:
“This will be a black baby born in Mississippi, and thus where ever he is born he will be in prison ... If I go to jail now it may help hasten that day when my child and all children will be free.”
—Diane Nash (b. 1938)
“Taking the pledge will not make bad liquor good, but it will improve it.”
—Mark Twain [Samuel Langhorne Clemens] (1835–1910)