Sulfite process

The sulfite process produces wood pulp which is almost pure cellulose fibers by using various salts of sulfurous acid to extract the lignin from wood chips in large pressure vessels called digesters. The salts used in the pulping process are either sulfites (SO₃), or bisulfites (HSO₃), depending on the pH. The counter ion can be sodium (Na), calcium (Ca), potassium (K), magnesium (Mg) or ammonium (NH₄).

单词	Sulfite pulping process
释义	Sulfite pulping process 英语百科 Sulfite process The sulfite process produces wood pulp which is almost pure cellulose fibers by using various salts of sulfurous acid to extract the lignin from wood chips in large pressure vessels called digesters. The salts used in the pulping process are either sulfites (SO₃), or bisulfites (HSO₃), depending on the pH. The counter ion can be sodium (Na), calcium (Ca), potassium (K), magnesium (Mg) or ammonium (NH₄).
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Sulfite pulping process

Sulfite process