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| Study on the Process Conditions of Bamboo Dissolving Pulp Preparation |
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| DOI：10.11981/j.issn.1000-6842.2017.03.16 |
| Key Words:bamboo dissolving pulp; pre-hydrolysis; neutralize; kraft cooking |
| Fund Project:四川省教育厅重大培育项目（17CZ0023）；四川理工学院2017年及2016年大创项目（201710622059，201610622018）。 |
| Author Name | Affiliation | | 彭 成1 | 1.四川永丰浆纸股份有限公司，四川乐山，614500 | | 杨 玲2，* | 3.四川银鸽竹浆纸业有限公司，四川泸州，646300 | | 杨忠奎3 | 2.四川理工学院，四川自贡，643000 | | 李文俊2 | 3.四川银鸽竹浆纸业有限公司，四川泸州，646300 | | 刘一山2 | 3.四川银鸽竹浆纸业有限公司，四川泸州，646300 | | 于成龙2 | 3.四川银鸽竹浆纸业有限公司，四川泸州，646300 | | 张 豪2 | 3.四川银鸽竹浆纸业有限公司，四川泸州，646300 | | 刘泽覃2 | 3.四川银鸽竹浆纸业有限公司，四川泸州，646300 | | 王 尧2 | 3.四川银鸽竹浆纸业有限公司，四川泸州，646300 | | 王云凤2 | 3.四川银鸽竹浆纸业有限公司，四川泸州，646300 | | 肖 林2 | 3.四川银鸽竹浆纸业有限公司，四川泸州，646300 | | 张克钟2 | 3.四川银鸽竹浆纸业有限公司，四川泸州，646300 |
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| Abstract: |
| The bamboo pulp was prepared from mixed bamboo slices by pre-hydrolysis, alkali solution neutralization, kraft cooking and ECF bleaching. To obtain the best conditions for the preparation of bamboo pulp,the performance of the slurry was analyzed by changing the maximum temperature of the pre-hydrolysis, the amount of alkali in the alkaline solution neutralization and the maximum temperature and amount of alkali in kraft cooking.The results showed that the best performance indicators of bleached bamboo pulp was obtained when the maximum temperature of pre-hydrolysis was 165℃, the alkali content was 8%~10% (Na2O), the maximum temperature and the amount of alkali correspond to 165℃ and 6% (Na2O) in kraft cooking, respectively.When the maximum temperature of pre-hydrolysis and the maximum cooking temperature of KP were 145℃, the yield of pulp was 6%~7% higher than that of the maximum temperature of pre-hydrolysis (165℃)and the maximum cooking temperature of kraft cooking (145℃). The bamboo pulp after bleaching could be used to prepare cellulose acetate and viscose fibers when the amount of alkali was 6% to 8% (Na2O) and 10% to 12% (Na2O) in the kraft cooking, respectively. |
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