Fatty acid stream block
(b) Flash tank:
| • Fatty acids from the hydrolyser enters the steam flash tank to remove water & concentrate the fatty acids. |
(c) Vacuum still:
• The concentrated fatty acids enter a high vacuum still. • Jet ejecter is used to generate vacuum in the still. • Wastes are separated from the bottom. • Fatty acid is also taken out as a marketable product. |
(d) Mixer:
• Fatty acid produced from vacuum still is now pumped to mixer. • Base such as NaOH or KOH is mixed in appropriate proportions and mixed thoroughly . • After mixing a viscous mass is produced. |
(e) Blender:
• The viscous mass from the mixer is sent to the blender. • Ingredients like scents, anti fungal & anti bacterial chemicals etc. is mixed in the blender. • The blender removes the solid mass which is then sent to: |
1. Chipping rolls: to manufacture soap strips.
2. Spray dryer: To get soap powder (used in manufacture of liquid soaps).
3. Bar Press Stock: To press and cut the viscous mass into bars of soap .