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Alkaline sulfite pulping process with sodium aluminate and anthraquinone
Alkaline sulfite pulping process with sodium aluminate and anthraquinone
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机译:铝酸钠和蒽醌制碱法亚硫酸盐制浆工艺
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摘要
An alkaline sulfite pulping process in which the lignocellulosic material is cooked in a solution containing sodium sulfite is provided. Sodium aluminate is used as a buffering agent. As a result of this, the stability of the pH of the cook and the properties of the pulp are improved. The amount of sodium aluminate as NaOH is from 2% to 8% based on the dry weight of the chips. The pulping process is carried out with the addition of a small dosage of anthraquinone, to produce chemically defibered pulps.
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