Search results
Results from the WOW.Com Content Network
A black liquor sample. In industrial chemistry, black liquor is the by-product 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 weak black liquor is further evaporated to 65% or even 80% solids ("heavy black liquor" [10]) and burned in the recovery boiler to recover the inorganic chemicals for reuse in the pulping process. Higher solids in the concentrated black liquor increases the energy and chemical efficiency of the recovery cycle, but also gives higher ...
Recovery boiler is the part of kraft process of pulping where chemicals for white liquor are recovered and reformed from black liquor, which contains lignin from previously processed wood. The black liquor is burned, generating heat, which is usually used in the process of making electricity, much as in a conventional steam power plant .
Kraft lignin from black liquor, which is produced in much higher amounts, may be processed into sulfonated lignin. The lignin is first precipitated by acidifying the liquor with CO 2 then washed (other methods for isolation exist). Reaction with sodium sulfite or sodium bisulfite and an aldehyde under a basic environment completes sulfonation.
Kraft Foods Group is a $19 billion North American food and beverage company whose leading brand portfolio includes Kraft, Oscar Mayer, Philadelphia, Planters, and many others.
The extracted liquid, known as black liquor in the kraft process, and red or brown liquor in the sulfite processes, is concentrated, burned and the sodium and sulfur compounds recycled in the recovery process. Lignosulphonates is a useful byproduct recovered from the spent liquor in the sulfite process. [9]
Kraft's personal relationship with Mayo, who played for the Patriots and was an assistant coach under Bill Belichick before being named as his successor, made it complicated. "I felt guilty I put ...
New England Patriots owner Robert Kraft on Monday blamed himself for having to fire Jerod Mayo, saying he put the first-year head coach in an "untenable" situation. Kraft met with the media one ...