河北化工2011，Vol.34Issue(12)：32-34,3.
低聚合度多聚甲醛的微波催化合成及其聚合度的测定
Synthesis and Determination of Low Polymerization Degree Paraformaldehyde Using Microwave Catalyzation
陆小东 1吴阿娜2
作者信息
- 1. 南通职业大学化学工程系,江苏南通226007
- 2. 南通江山农药化工股份有限公司,江苏南通226003
- 折叠
摘要
Abstract
Synthesis of low polymerization degree paraformaldehyde under microwave irradiation was studied.Effects of microwave irradiation power,time and promoter on yield of paraformaldehyde were investigated.The polymerization degree of industrial paraformaldehyde was determined by sodium sulfite method and iodimetry,the merits and demerits of two methods were compared.Microwave irradiation remarkably accelerated reaction and shortened reaction time.Formaldehyde content in paraformaldehyde and yield of paraformaldehyde reached 97.28% and 74.67% respectively.The average polymerization degree of paraformaldehyde was below 22 under microwave power 300 W,material superficial temperature was 50 °C,reaction time was 25 min and mass fraction of dim ethylamine was 0.04%.Iodimetry measuring error was smaller.关键词
低聚合度多聚甲醛/微波催化/碘量法Key words
low polymerization degree paraformaldehyde/microwave catalyzation/iodimetry分类
化学化工引用本文复制引用
陆小东,吴阿娜..低聚合度多聚甲醛的微波催化合成及其聚合度的测定[J].河北化工,2011,34(12):32-34,3.
