热解燃烧废TBP/OK料液配制  

Compound of Feed for Pyrolysis and Combustion Spent TBP/Kerosene

作　　者：张存平[1] 甘学英[1] 林美琼[1] 魏峰[1] 范显华[1] 

机构地区：[1]中国原子能科学研究院放射化学研究所,北京102413

出　　处：《原子能科学技术》2004年第2期179-184,共6页Atomic Energy Science and Technology

摘　　要：采用热解燃烧法处理放射性废磷酸三丁脂 /煤油 (TBP/OK)溶剂时 ,为避免热解产生的磷酸腐蚀以及使其充分热解 ,需在TBP/OK溶剂中加入固磷剂和表面活性剂 ,并配成均匀、稳定料液。本工作研究配制TBP/OK乳状液和TBP主要降解产物磷酸二丁脂 (DBP)对乳状液配制的影响。利用放射性废TBP/OK溶剂进行了热解燃烧废TBP/OK料液配制的配方验证 ,并推荐了一种能够满足工业规模处理放射性废TBP/OK的料液配方。Pyrolysis and combustion technology is an available method to treat spent organic solvent——intermediate-level radioactive TBP/kerosene. In the process TBP is decomposed into C 4H 8 and P 2O 5 that would corrode equipment and pipes. In order to convert P 2O 5 into calcium phosphate or pyrophosphate, and then separate them from the pyrolysis reactor, calcium hydroxide and emulsifier solutions are added to the TBP/ kerosene to form stable emulsion after intense mixing. The influences of the different parameters, such as emulsifier kind, emulsifier content, DBP content and temperature, etc., in the pure TBP/kerosene-DBP system on the emulsion is studied. The results show that the mixing do not emulsify if the content of DBP is more than 0.4%. The demonstration with the spent TBP/kerosene show that the emulsion is well-distributed. The emulsion is stable in 24 h and can be transported by pump.

关 键 词：热解燃烧法 放射性废物处理 磷酸三丁脂/煤油 TBP/OK 磷酸二丁脂 DBP 

分 类 号：TL941.1[核科学技术—辐射防护及环境保护]