论文部分内容阅读
简要叙述了腐植酸的主要性能,论述了腐植酸对叔胺-煤油溶液萃取铀和反萃取铀过程的影响。腐植酸与腐植酸铀酰盐对叔胺-煤油溶液萃取铀将降低萃取效率,并形成乳化。在反萃取铀过程中,实践表明,采用腐植酸脱除剂Na2CO3作为反萃取剂进行反萃取,可以有效把叔胺-煤油溶液中负载的铀、腐植酸铀酰盐以及腐植酸反萃取下来,铀的反萃取率达98%以上,腐植酸的脱除率达99%以上;且两相之间无乳化膜。
The main properties of humic acid are briefly described. The effects of humic acid on the uranium extraction and uranium recovery from tertiary amine-kerosene solution are discussed. Humic acid and humic acid uranyl salt on the tertiary amine - kerosene solution extraction of uranium will reduce the extraction efficiency, and the formation of emulsification. In the uranium stripping process, practice shows that the use of humic acid removal agent Na2CO3 as stripping agent for stripping, can effectively load the uranium, humic acid uranyl salt and humic acid back extracted from the tertiary amine - kerosene solution, The extraction rate of uranium reaches over 98%, the removal rate of humic acid reaches over 99%, and there is no emulsion film between the two phases.