采用X射线衍射、傅立叶变换红外光谱、气-质联用色谱等分析检测手段研究了铜萃取过程中第三相固体微粒的组成、固体微粒对萃取剂的吸附和降解作用,寻求抑制铜萃取过程中第三相形成的方法.研究表明,第三相中的固体微粒成分主要为铁矾、高岭土.随着萃取剂浓度的增大,固体微粒对萃取剂的吸附量先增大后减小,在萃取剂浓度为10%时,高岭土、铁矾对萃取剂的吸附量达到最大,其值分别为20.99和30.46 mmol·g-1.同时,吸附量随固体微粒的增加而增大.整个过程中,固体微粒对萃取剂的降解作用并不明显.因此,可通过调节萃取剂浓度、控制固体微粒的含量来抑制第三相的生成.
参考文献
| [1] | Szymaoowski J;Cierpiszewski R .Kinetic model for interfacial process of copper extraction with 2-hydroxy-5-alkylbenzaldehyde oximes[J].Solvent Extraction ane Ion Exchange,1992,10(04):664. |
| [2] | Szymanowski J;Tondre C .Kinetic and interfacial phenomena in classical and micellar extraction systems[J].Solvent Extraction and Ion Exchange,1994,12(04):874. |
| [3] | Menon V B;Wasan D T .A review d" the factors affecting the stability d solids-stabilized emulsions[J].Separation Science and Technology,1988,23(12):2132. |
| [4] | 刘晓荣,邱冠周,胡岳华.固体微粒对溶剂萃取界面乳化的影响[J].金属矿山,2004(05):42-45. |
| [5] | 柳建设,蓝卓越,邱冠周,王淀佐.Mechanism of crud formation in copper solvent extraction[J].中南工业大学学报(英文版),2002(03):169-172. |
| [6] | 周桂英,阮仁满,温建康.铜溶剂萃取过程界面乳化的原因分析[J].稀有金属,2006(06):757-760. |
| [7] | 刘晓荣,邱冠周,胡岳华.Lix984N的降解行为研究[J].矿冶工程,2002(03):79-82. |
| [8] | Sperline R P;Song Y E;Freisor M H .Organic constituents of cruds in Cu solvent extraction circuits separation and identification of diluent-soluble compounds[J].Hydrometallurgy,1998,50:2. |
| [9] | 刘晓荣,邱冠周,胡岳华,杨俊和,金鸣林.铜溶剂萃取O/W型乳化液的结构稳定性[J].中南大学学报（自然科学版）,2005(06):929-932. |
| [10] | 刘谟禧.湿法冶金过程硅的化学[J].矿冶工程,1989(02):61. |
| [11] | Sperling R P;Song Y;Maetal E .Organic constituents of eruds in Cu solvent extraction circuits Ⅱ:Photochemical and acid hydrolytic reactions of alkaryl hydroxyoxime reagents[J].Hydrometallurgy,1998,50(01):24. |
| [12] | David E T;Mukul M S .Factors controlling the stability of colloid-stabilized emulsions[J].Colloid Interracial Science,1993,157(01):245. |
| [13] | 刘晓荣,邱冠周,胡岳华,徐兢.铜溶剂萃取界面乳化物极限聚结机理[J].中国有色金属学报,2002(03):582-586. |
| [14] | Fomari P;Abbruzzese C .Copper and nickel selective recovery by electrowinning from electronic and galvanic industrial solutions[J].Hydrometallurgy,1999,52:220. |
| [15] | 赵振国;王果庭.胶体与表面化学[M].北京:化学工业出版社,2003:247. |
| [16] | Greenshields J N;Tetlow P E .Solvent Extraction Process[P].US Patent:5024821,1991. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%