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Full Description
Solvent extraction is now a most powerful separation and purification tool in the process industries. It is used commercially in hydrometallurgy (including the nuclear industry) and widely within the chemical industry including organic chemicals, petrochemicals and pharmaceuticals. That the technique has risen to prominence in only a few decades is undoubtedly due to the vast amount of research and development carried out not only into reagents, their extraction chemistry and performance in a wide variety of systems, applications and process development but also in the development of appropriate equipment for the process without which process development would be impossible. The scientific literature is rich in papers from fundamental solvent extraction studies on basic physical chemistry, co-ordination chemistry, extraction chemistry, chemical kinetics to process development through to the chemical engineering fundamentals and design required to understand the process of solvent extraction and to permit design and engineering of processes and equipment.
The investigation in recent years of phenomena such as reversed micelles, microemulsions, liquid membranes and lyotropic liquid crystals still requires further research, as does the continuing search for a direct method of studying the interfacial reactions involved in many solvent extraction systems and direct identification and characterization of the interfacial species. In planning ISEC '93 the Organizing Committee selected as the conference theme "Solvent Extraction in the Process Industries" noting that, while solvent extraction continues to develop improved processing, yields, separations and reduced costs, it was timely to seek to answer the questions such as: How does this technology measure up in today's environmentally aware world? Where should new developments be? and What should the goals be now for workers in both solvent extraction and liquid membranes? The conference aimed to provide answers to these questions.
Contents
Volume 1: 1. Contacting Equipment 1.1. Aromatics extraction with the Kuhni column, an application requiring an extreme design flexibility. 2. Processes. 2.1. Separation and recovery of nickel and cobalt in ammoniacal systems - process development. 3. Rare Earths. 3.1. Some progresses in solvent extraction of rare earth in China. 4. Hydrodynamics and Mass Transfer. 4.1. The effect of viscosity on drop transport and breakup in pulsed and stirred liquid-liquid extraction columns. 5. Metals (Reagents and Modifiers). 5.1. Liquid-liquid extraction and molecular modelling. Volume 2: 6. Supercritical Fluid Extraction. 6.1. Supercritical fluid extraction using amine-entrainers. 7. Inorganic Materials. 7.1. The development of liquid-liquid extraction processes for the inorganic chemical industry using steady-state simulation. 8. Liquid Membranes. 8.1. Metal separation by supported liquid membranes: effect of the membrane characteristics. 9. Biotechnology. 9.1. Interfacial mass transfer and partition studies during whole broth extraction. 10. Organic Chemicals. 10.1. Comparative studies with phenol, furfural and N-methyl-2-pyrrolidone as solvents for lube oils extraction. 11. Control and Modelling. 11.1. Control of liquid-liquid extraction columns. Volume 3: 12. Metals 2 (Metals Extraction). 12.1. The solvent extraction of As, Sb and Bi from copper refining electrolytes using organophosphorus reagents. 13. Nuclear 1. 13.1. Solvent extraction processes used for the recycling of irradiated nuclear fuel. 14. Environmental. 14.1. AmMAR: concept for metal waste recovery. 15. Fundamentals. 15.1. Interfacial phenomena in hydrometallurgical solvent extraction systems. 16. Nuclear 2. 16.1. Distribution coefficient measurements of Tc, Np[IV] and Np[Vi] between nitric acid solutions containing U and Pu and 30per cent TBP/n-dodecane. Part contents.
