Limestone beneficiation plants in India are designed to improve the quality of limestone by removing impurities such as silica, clay, and other minerals. These plants use various techniques like crushing, grinding, washing, and flotation to enhance the calcium carbonate content and reduce contaminants.
Key Limestone Beneficiation Plants in India:
1. ACC Limited – Multiple locations (Madhya Pradesh, Karnataka, Rajasthan)
2. UltraTech Cement – Gujarat, Andhra Pradesh, Rajasthan
3. Ambuja Cement – Rajasthan, Himachal Pradesh
4. Shree Cement – Rajasthan
5. JSW Cement – Andhra Pradesh
6. Birla Corporation (MP Birla Cement) – Madhya Pradesh
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Common Beneficiation Techniques Used:
– Washing & Scrubbing – Removes clay and silica.
– Gravity Separation – For removing heavy impurities.
– Froth Flotation – To separate calcite from silicates.
– Magnetic Separation – Removes iron-bearing minerals.
Challenges in Limestone Beneficiation:
– High moisture content in low-grade limestone.
– Energy-intensive processes like grinding & flotation.
– Environmental concerns related to water usage and tailings disposal.
Government & Industry Initiatives:
– The Indian Bureau of Mines (IBM) promotes sustainable mining practices.
– The Ministry of Mines encourages value addition through beneficiation to reduce waste and improve resource efficiency.
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