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As the rapid development of economy, the discharging of limestone is rising. The waste captured large fields, and may also pollute the air and underground water. At present, the waste limestone cannot be well utilized.
Limestone can be used as cement retarder, gypsum board, construction gypsum powder, chemical material, roadbed, ceramic, gypsum fiber, etc. Use limestone mill to produce light calcium carbonate is a good way for resource utilization.
Limestone light calcium carbonate has high added-value, the technology also protected the environment and create economy value. Limestone is the industrial slag of wet process phosphoric acid, is the largest discharged waste in chemical industry.