Alum Manufacturing Unit
This project profile covers the establishment of an alum manufacturing unit. The facility produces potash alum and related chemical products used in water treatment, paper sizing, and various industrial applications.
- 9 jobs
- 25 KW power
- ₹24.06L project cost
Project cost & finance
Cost of Project
figures in ₹ Lakhs
| Plant & Machinery | 17.5 |
| Other Misc. Assets | 1 |
| Working Capital | 5.56 |
| Total | 24.06 |
|---|
Means of Finance
figures in ₹ Lakhs
| Own Contribution | 2.41 |
| Term Loan | 16.65 |
| Working Capital Loan | 5 |
| Total | 24.06 |
|---|
Raw materials & machinery
- Raw Material BauxiteBuy on Amazon ↗
With 60% alumina content and less than 3% ferric oxide
- Raw Material Potassium SulphateBuy on Amazon ↗
99% pure
- Raw Material Concentrated Sulphuric AcidBuy on Amazon ↗
60% concentration
- Raw Material Distilled waterBuy on Amazon ↗
- Raw Material Flaked GlueBuy on Amazon ↗
- Raw Material Black Ash or Barium SulphideBuy on Amazon ↗
- Machinery Jaw Crusher machineBuy on Amazon ↗
Single toggle type size 5 x 9
- Machinery Mineral Pulverizer/Hammer MillBuy on Amazon ↗
Used to finely grind crushed ores
- Machinery Reaction DigesterBuy on Amazon ↗
Mild steel, lead lined tank with mechanical stirrer
- Machinery Evaporation tanksBuy on Amazon ↗
Made from mild steel, lead-bonded
- Machinery Coal-fired boilersBuy on Amazon ↗
Smoke tube, multi-tubular vertical
- Machinery Water-softening plantBuy on Amazon ↗
Ion exchanging water softening system
- Machinery Acid PumpBuy on Amazon ↗
75 x 40 mm with 3 HP motor
- Machinery Jacketed and Non-jacketed Mixing vesselsBuy on Amazon ↗
Stainless steel vessels with stirrer
- Machinery Packaging MachineBuy on Amazon ↗
Jumbo bag packaging machine
Manufacturing process
- Wash the procured bauxite in a bauxite washing machine to remove dirt and impurities.
- Crush the bauxite ore to 1 inch pieces using a jaw crusher and further pulverize to 105-110 mesh size.
- Charge the powdered bauxite into a lead-lined MS reactor vessel, add 60% sulphuric acid slowly, and agitate with steam at 105-110 degrees C.
- Allow the reaction to complete over 8-10 hours, then pump the mixture to a settling tank where flaked glue and black ash/barium sulphide are added.
- Filter the clear aluminum sulphate solution in a frame and filter press, washing the pressed cake with water.
- Add an aqueous solution of potassium sulphate to the aluminum sulphate solution for crystallization in mixing tanks.
- Concentrate the liquid in a concentrator for 8-10 hours to obtain a concentrated alum solution.
- Transfer the concentrated liquid into plastic molds to cool and form crystals.
- Dry the formed alum in fluidized bed dryers to remove residual moisture.
- Package the final alum product using automatic packaging machines into bags for storage and dispatch.
Market
Alum has widespread commercial applications primarily in municipal and industrial water treatment plants as a flocculating agent, paper sizing, textile industries as a mordant, and in construction, cosmetics, and pharmaceuticals.