sulfatkraftprocess
The sulfatkraftprocess, commonly known as the Kraft process or sulfate process, is the dominant pulping process used worldwide for producing wood pulp. It is a chemical recovery process that converts wood into wood pulp by separating lignin from cellulose fibers. The process uses a mixture of sodium hydroxide and sodium sulfide, known as white liquor, to chemically break down the wood chips. This breaks the lignin bonds and allows the cellulose fibers to be liberated.
The wood chips are cooked under high pressure and temperature in a digester with the white liquor.
A crucial aspect of the Kraft process is its efficient chemical recovery system. The black liquor is
The Kraft process is favored for its ability to pulp a wide range of wood species and