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steps of mining process of silica sand chile

Sand grains are washed to remove any unwanted silt and clay particles Wash water is then pumped to a nearby settling tank where flocculants polyacrylamides are added to remove suspended particles These particles along with sand that’s too fine for hydraulic fracturing make up about 20–30 of the total weight of the raw sandstone... As a leading global manufacturer of crushing equipment, milling equipment,dressing equipment,drying equipment and briquette equipment etc. we offer advanced, rational solutions for any size-reduction requirements, including quarry, aggregate, grinding production and complete plant plan.

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