权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

Alkali-Oxygen Pulping of Non-Woody Fiber

非木质纤维碱氧制浆

基本信息

批准号：
61550607
负责人：
TOSAKA Kunio
金额：
$ 1.15万
依托单位：
Faculty of Engineering Hokkaido University
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (C)
财政年份：
1986
资助国家：
日本
起止时间：
1986 至 1987
项目状态：
已结题

项目摘要

Bagasse was soaked in 1-4% NaOH solution at 20-80゜C for 60 min. and then with those soaking bagasse pulp was obtained by oxygen cooking under oxygen 5 kg/cm^2 at 120 C for 60 min. into autocleaves. In the results, the screened yield pulp obtained in soaking conditions of 2-3% NaOH at 40-60゜C was showed 46-55% higher than the yield of rice straw pulp obtained in same conditions. The paper strength of the obtained pulp kept high level to fit to the regular use. The pulp bleached with ozone by liquid phase was increased brightness without decreasing paper strength.In the case of oxygen cooking sasa bamboo with same conditions as that of bagasse the strong conditions of clkali soaking was necessary for impregnating alkali medium into them tissue. The good grade pulp was produced by treating with weight volume over 185 NaOH based on oven dry sample at 100 120゜C for 60 min. and then by oxygen cooking. The paper strength of obtained pulp kept high level to the regular use. But the value of extractive in hot 1% NaOH solution of sasa bamboo(36.4%) was so much higher than the wood species, and it was easily dissolved in the alkali soaking liquor producing less yield pulp and then a high yield gain was not obtained by the addition of sodium borohydride into alkali soaking solution.

将甘蔗渣用1- 4%NaOH溶液在20-80 ℃下浸泡60分钟，然后用这些浸泡的甘蔗渣在氧气5 kg/cm ^2下在120 ℃下氧煮60分钟，得到甘蔗渣纸浆。结果表明，在2- 3%NaOH和40-60 ℃的浸泡条件下得到的筛选得率浆比在相同条件下得到的稻草浆得率高46-55%。所得浆的纸张强度保持较高水平，适合常规使用。臭氧液相漂白可提高纸浆白度而不降低纸张强度，在与甘蔗渣相同的条件下氧煮麻竹时，必须有强的碱浸条件才能使碱介质渗透到麻竹组织中。以烘干试样为基础，用质量体积超过185的NaOH在100 ~ 120 ℃下处理60 min，然后进行氧煮，可得到优质纸浆。所得浆的纸张强度保持较高水平，可正常使用。但在1%NaOH热溶液中的抽提物含量（36.4%）远高于木材，且易溶于碱浸液中，成浆得率低，加入硼氢化钠不能提高得率。