摘要
本文报道了乳状液膜法(ELM)分离钪与铁、锰、钙、混合稀土、钛等离子。在pH2.2～2.5的盐酸介质中,只有钪被TTA(噻吩甲酰三氟丙酮)为载体的ELM提取.在大量杂质共存的条件下,经一级提取Sc^(3+)件从60mg/L富集到1400mg/L,内相Sc^(3+)浓度远远高于杂质离子浓度。液膜配方为:50ml含0.3gTTA/100ml,4%N_(205)或span80的煤油溶液与40ml 2M以上Ha制乳,水乳比可取20:1。
This paper reports the separation of scandium by emulsion liquid membrane. In the presence of large amount of Fe^(2+), Mn^(2+), Ca^(2+), RE^(2+), Ti^(4+), Sc^(5+) was concentrated from 60 mg/L in the feed to 1400 mg/L in the internal phase where other ion concentrations were much lower. The membrane was formulated by emulsifying 50 ml kerosene, which contained 0.3 gTTA/100ml and 4% N_(205), with 40 ml hydrochloric acid above 2 M. The ratio of feed to emuldion was 20: 1, and the feed pH was controlled 2.2～2.5 by adding NaAc solution.
出处
《膜科学与技术》
CAS
CSCD
1992年第1期16-20,共5页
Membrane Science and Technology
