<正>我们对南通造纸厂提供的芦竹采用碱性亚硫酸钠法进行了初步试验研究。试验结果表明:浆的得率、浆中戊聚糖的含量随着亚硫酸钠与总碱的比数(均用Na_2O计)的提高而增加,但浆的高锰酸钾值却呈“N”形变化。原料经热水预处理和未经热水预处理总碱用量可以分别下降到16％和17.5％(NaOH计)。当亚硫酸钠与总碱比数控制在82—87％范围时,浆的得率在50％以上,浆的白度、戊聚糖含量比较高,而浆的高锰酸钾值却比较低。

Samples (Arundo donax) supplied by Nantong Paper Mill has been studied by alkaline sulfite pulping process. Results indicated that the yield of pulp and the pentosan content in the pulp increased with increment of the ratio of sodium sulfite to the total sodium (all calculated as sodium oxide), but the potassium permanganate value in the pulp changed in a "N" shape. The material, pretreated and unpretreated by hot water, requires at least a total sodium of 16% and 17.5% (calculated as sodium hydroxide) respectly. when the ratios of sodium sulfite to the total sodium are controlled at 82-87%, the yield of pulp exceeds 50%, and the brightness and pentosan contents of pulp are higher and the potassium permanganate value in the pulp are lower than otherwise.