Limestone is a sedimentary rock composed of the shells of dead sea creatures that built up over millions of years. It exists in various forms from soft chalk to hard limestone to the hardest marble. Limestone is mined through both open cast and underground mining. It has many chemical and industrial uses such as in cement, glass, paper, building materials, road construction, and more. Key processes in working with limestone include calcination to produce quicklime, hydration to produce hydrated lime, and reaction with carbon dioxide to produce precipitated calcium carbonate.

1. Limestone CaCO 3

2. What is Limestone Sedimentary rock Made up of the shells of millennia old dead sea creatures Layers of these built up over millions of years, and were squashed together until they formed limestone

3. Limestone Chalk (Soft) Limestone (CaCO 3 ) (Comparatively hard) Marble (Hardest)

4. Mining Method Open Cast Mining Surface Mining Underground mining

5. Chemical Properties Chemical formula: CaCO 3 IUPAC Name: Calcium Carbonate Insoluble chemical Base in nature

6. Uses Quick lime Hydrated lime PCC Cement Glass Power Paper Building Road construction Sugar Soda ash Paint Pharmacy Plastic Resin Latex Rubber Agriculture Cosmetic Steel ETP Abrasive Chemicals

7. Limestone Cycle

8. PCC manufacturing The Precipitated Calcium Carbonate Plant offered by us is made by following steps: Calcination / Burning of limestone in a vertical shaft lime kiln to give quick lime and carbon dioxide gas. Hydration of quick lime to give hydrated lime. Washing and cooling of carbon dioxide gas. Reaction of hydrated lime with CO2 gas to give desired grade of precipitated calcium carbonate slurry.

9. Lime Manufacturing

10. Cement Manufacturing

11. Paper Manufacturing

12. Glass Manufacturing

13. Power generation plant ( Coal and lignite based power plant)

14. Steel Manufacturing

15. Sugar manufacturing

16. Soda ash manufacturing

17. Alkaline

18. Thank you… Ruchika Dave Mail at: ruchika.dave@yahoo.com