W5 T2

Three (3) methods of extractions are

• Rendering

• Solvent extraction

• Pre-pressing and solvent extraction

• Pressing

Two (2) main methods of solvent extraction are

• Percolation of the solvent through the material

• Percolation of the starting material in solvent

• Immersion of the solvent through the material

• Immersion of the starting material in solvent

Types of solvent used in solvent extraction is

• Citric acid

• Methane

• n-hexane

• Lactic acid

The meaning of rendering is

• To split open

• To combine together

• To eliminate

• To extract

Two (2) types of rendering are

• Warm rendering

• Wet rendering

• Cold rendering

• Dry rendering

Two (2) types of refining are

• Pure refining

• Distillation refining

• Physical refining

• Chemical refining