摘要
本文介绍了采用硫酸热处理（ｐＨ０．５～１．０，１６０～１６５℃）将草浆造纸黑液资源化的工艺．试验表明，Ⅰ黑液经该工艺处理后，分离出的炭渣可制取２２ｇ活性炭，滤液可制取４０ｇＮａ２ＳＯ４和３ｇ糖醛．黑液经该工艺处理后ＣＯＤｃｒ去除率大于９５％，色度去除率大于９９％．
This is a process on reclamation treatment of the strar pulp and paper black liguor by sulphuric acid heat treatmant (pH0. 5-1. 0, temperature 160￣165℃).The results described that after one liter black liguor betreated by sulphuric acid heat,20 g activated carbon can be producted from the carben cinder being filtered from black liguor, 40 g Na2SO4 and 3 g furfural can be producted from the filtrate from black liguor After the processing,more then 95% of CODcr and 99% of colourity can be removed from the straw pulp and paper black liguor.
出处
《湘潭大学自然科学学报》
CAS
CSCD
1994年第3期66-71,共6页
Natural Science Journal of Xiangtan University
关键词
草浆
造纸
黑液
活性炭
硫酸钠
糠醛
热处理
Straw pulp and paper
black liguor
activated carbon
sodium sulfate furfraul
