摘要
在内径为50mm的筛板塔内，研究了蒽醌工作液-过氧化氢-水体系的气体扰动萃取过程。萃取温度为40℃，空气和分散相的表观流速分别为（0～3．22）mm／s和（1．27～1．70）mm／s，分散相和连续相的表观流速之比为50：1。结果表明，在过氧化氢萃取塔中引入扰动气体，增大了分散相滞液率，提高了总板效率，降低了萃余相中过氧化氢的含量。
In a plate column with diameter of 50 mm, the process of gas-agitation extraction about anthraquinone working solution-H2O2-H2O system has been studied. The system temperature maintained at 40 ℃. The air superfacial velocity was 0--3.22 mm/s and the disperse phase superficial velocity was 1.27--1.70 mm/s. The superficial flow ratio of dispersed phase to continuous phase was maintained at 50 ： 1. The experimental result showed that the overall plate extraction efficiency of gas-agitated plate column is obviously higher than that of conventional plate column, disperse phase hold-up increased and the content of hydrogen peroxide in residual extraction decreased.
出处
《化学工业与工程》
CAS
2006年第5期411-414,共4页
Chemical Industry and Engineering
关键词
过氧化氢
气体扰动萃取
分散相
滞液率
hydrogen peroxide
gas-agitated extraction
disperse phase
hold-up
