| 硫酸对草浆造纸黑液催化作用的研究 |
| 摘要点击 656 全文点击 859 投稿时间：1993-01-13 |
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| 中文关键词 草浆造纸 黑液 硫酸催化 水解 炭化 综合利用 |
| 英文关键词 straw fiber pulping black liquor sulfuricacid catalytical hydrolysis lignin |
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| 中文摘要 |
| 研究了硫酸对苇浆造纸黑液的催化作用。结果表明,硫酸在加温加压条件下(0.2-0.6MPa,130-165℃)能使黑液中99%以上木质素酸析、脱水、炭化分离出来。理论含醛量的62%以上水解、脱水转化为糠醛。该研究为黑液的综合利用开辟了新的途径。 |
| 英文摘要 |
| Sulfuric acid was found to have a catalytical function in promoting the hydrolysis of black liquor from a reed fiber pulping process. The results from this study show that under the conditions of applied pressure and heating (0.2-0.6 MPa, 130-165 ℃),sulfuric acid allowed over 99% of lignin in the black liquor to be acid settled, dewatered,carbonized and then separated from the black liquor.More than 62% of theoretical aldehyde content were hydrolyzed, dewatered and then converted to furfural. |
