Chapter 23: Leaching and Extraction
| 23.1 | Introduction | 3 |
| 23.1.1 | Related important references | 3 |
| 23.1.2 | Leaching and Extraction | 3 |
| 23.2 | Leaching | 3 |
| 23.2.1 | Preparation of Solid Leaching | 4 |
| 23.3 | Equipment used in Leaching Operations | 5 |
| 23.3.1 | Discontinuous extraction | 5 |
| 23.3.1.1 | Discontinuous Apparatus | 6 |
| 23.3.2 | Continuous extraction | 7 |
| 23.3.2.1 | Continuous extraction apparatus | 8 |
| 23.4 | Process Calculation Methods for Leaching | 14 |
| 23.4.1 | Equilibrium Relations and Single-Stage Leaching | 14 |
| 23.4.2 | Few terminology definitions | 14 |
| 23.4.3 | Calculation of the Number of Stages | 15 |
| 23.4.4 | Leaching Calculation Examples | 18 |
| 23.5 | Liquid-Liquid Extraction | 25 |
| 23.5.1 | Typical examples in CPI | 25 |
| 23.5.2 | Comparison between Liquid-liquid extraction and Distillation | 25 |
| 23.5.3 | Solvent Selection Criteria | 26 |
| 23.6 | Equipment Involved in Liquid-Liquid Extraction | 27 |
| 23.6.1 | Single step mixer-settler | 27 |
| 23.6.2 | Continuous | 28 |
| 23.7 | Process Calculation Methods | 38 |
| 23.7.1 | Conjugate line | 42 |
| 23.7.2 | Separation factor | 43 |
| 23.7.3.1 | Effect of Temperature on Solubility Diagram | 45 |
| 23.7.4 | Equilibrium data on Rectangular Diagram | 46 |
| 23.7.4.1 | Addition of two streams | 47 |
| 23.7.4.2 | Subtraction of two streams | 48 |
| 23.7.5 | Methods of Operation (Types of contact) | 48 |
| 23.8 | Continuous contact (packed or spray columns) | 54 |
| 23.9 | Examples of Liquid-Liquid Extraction Calculations | 56 |
| 23.10 | References | 77 |
Mihir’s Handbook at just USD 2.0/ebook (India: Rs.150/ebook)
