soda process
Quick Summary
The soda process is a method for creating pulp by cooking wood chips at high temperatures and pressures in an alkaline solution, primarily containing caustic soda. The resulting pulp, known as soda pulp, is prepared using this method. This chemical process is one way to produce paper pulp, which is the raw material for papermaking, consisting of various fibers that form a matted sheet when moisture is removed. Other chemical methods for pulp production include the sulfite process and the kraft process. The kraft process, also known as the sulfate process, uses a solution of caustic soda and sodium sulfide and produces a stronger pulp than the soda process alone.1234
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papermakingImprovements in materials and processesChemical wood pulps such as soda and sulfite pulp (described below) are used when high brightness, strength, and permanence are required. Groundwood pulp was first made in Germany in 1840, but the process did not come into extensive use until about 1870. Soda pulp was first manufactured from wood in…
Read MoreChemical wood pulps such as soda and sulfite pulp (described below) are used when high brightness, strength, and permanence are required. Groundwood pulp was first made in Germany in 1840, but the process did not come into extensive use until about 1870. Soda pulp was first manufactured from wood in…
Read More- papermakingChemical wood pulp
Although this soda process attained commercial importance, soda pulp was of relatively low strength; and use of the process was limited to manufacturing filler pulps from hardwood, which were then mixed with a stronger fibre for printing papers. Because this process consumed relatively large quantities of soda,…
Read MoreAlthough this soda process attained commercial importance, soda pulp was of relatively low strength; and use of the process was limited to manufacturing filler pulps from hardwood, which were then mixed with a stronger fibre for printing papers. Because this process consumed relatively large quantities of soda,…
Read More