草浆碱木素过氧化氢氧化氨解制备氨化木质素缓释肥料的研究  

Study on ammoxidation of straw-pulp alkaline lignin by hydrogen peroxide to slow-release fertilizer

作　　者：江启沛[1] 张小勇[2] 李佐虎[2] 

机构地区：[1]中国科学院城市环境研究所,厦门361012 [2]中国科学院过程工程研究所,北京100080

出　　处：《环境工程学报》2009年第2期279-284,共6页Chinese Journal of Environmental Engineering

摘　　要：研究了草浆碱木素的过氧化氢氧化氨解的工艺过程,研究了各种工艺参数对过氧化氢氧化氨解的影响。在最佳的工艺条件,120℃,90 m in反应时间,20%过氧化氢用量和20%氨水用量下,得到的氨化木质素总氮11.62%,氨态氮4.12%。研究表明过氧化氢完全可以替代氧气作为木质素氧化剂,为草浆碱木素转化成有机肥料提供依据。A novel method that used hydrogen peroxide as an oxidizer to ammoxidize straw-pulp alkaline lignin was studied. Under the desirable conditions, such as 120℃ , 90 rain reaction time, 20% hydrogen peroxide charge, and 20% ammonia charge, the nitrogen content of the ammoxidized product reached 11.62% and the ammonia nitrogen was 4.12%. The study showed that hydrogen peroxide could completely substitute for oxy- gen as an oxidizer for ammoxidizing alkaline lignin. Straw-pulp alkaline lignin can be effectively converted into slow-release fertilizer.

关 键 词：草浆碱木素 过氧化氢 氧化氨解 

分 类 号：X703.1[环境科学与工程—环境工程]