| 用草浆造纸黑液制取活性炭 |
| 摘要点击 688 全文点击 950 |
| 查看HTML全文
查看全文 查看/发表评论 下载PDF阅读器 |
| 中文关键词 活性炭 草浆造纸 黑液 |
| 英文关键词 activated carbon straw pulp and paper black liquor |
|
| 中文摘要 |
| 本法用酸水解炭化、ZnCl2活化法处理草浆造纸黑液生产活性炭.结果表明,由7—8Be的草浆黑液1L可制20g左右的活性炭.活性炭的碘值>1000mg/g,亚甲基兰值>180ml/g,其主要指标已超过我国LY216-79和日本JIS K1426标准一级品的要求.提取活性炭后,黑液中CODCr去除率达72%,色度去除率达93%.残液还可作提取Na2SO4、糠醛的原料. |
| 英文摘要 |
| An experimental study on the production of activated carbon from straw pulp and paper black liquor by acid hydrolysis carbonization and ZnCl2 activation was curried out. Results show that about twenty grams of activated carbon can be obtained from a litre of 7-8 Be straw pulp and paper black liquor. The iodine number and methylene blue of the activated carbon thus produced are higher than 1000 mg/g and 180 ml/g, respectively. The main quality indices of the product are better than those of LY216-79 produced in China and JIS 1426 Grade 1 produced in Japan. After removal of the activated carbon, the CODcr in the liquor reduced by 72%, and the colority reduced by 93%. The residual liquor can be used for preparing Na2SO4 and furfural. |
|
|
|
