phosphate and iron mining

Phosphate Mining and Industry | Tennessee Encyclopedia

Rockdale Furnace, located south of Mt. Pleasant, manufactured ferrophosphate steel by a process of mixing phosphate and iron. This material was used for armor plating for artillery guns and battleships in World War I.

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Phosphate - Wikipedia

A phosphate is chemical derivative of phosphoric acid.The phosphate ion, (PO 3−4), is an inorganic chemical, the conjugate base that can form many different salts.In organic chemistry, a phosphate, or organophosphate, is an ester of phosphoric acid.

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U.S. GAO - Phosphate Mining: Oversight Has Strengthened, but ...

Recommendation: To ensure effective oversight of phosphate-mining operations and reclamation and cleanup, the Secretary of the Interior should direct the Director of BLM to document the practice of requiring financial assurances to cover the estimated full cost of reclamation in BLM's official agency policy.

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Phosphate Rock | Minerals Education Coalition

Phosphate Rock. The term phosphate rock (or phosphorite) is used to denote any rock with high phosphorus content. The largest and least expensive source of phosphorus is obtained by mining and concentrating phosphate rock from the numerous phosphate deposits of the world.

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11.21 Phosphate Rock Processing - US EPA

those phosphate rock processing operations associated with fertilizer manufacture are discussed here. Florida and North Carolina accounted for 94 percent of the domestic phosphate rock mined and 89 percent of the marketable phosphate rock produced during 1989.

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Mining - The Phosphate Risk

The Mining Process. The mining process in Florida begins with a field study to determine the location and density of the phosphate deposits. Information like the location, size, and shape of the ore is determined to focus the mining effort.

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Phosphate Mining - The Mosaic Company

Phosphate Mining To meet the continuing world demand for phosphate, we plan to extend existing mines and develop new mines in Hardee, Manatee and DeSoto counties. By extending existing mining operations onto adjoining properties, we can continue producing phosphate in the area without increasing our water consumption by connecting to existing ...

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Phosphate Mining in the US and Canada | Investing News Network

Phosphate plays a major role in crop production, and investors interested in this vital material should know about phosphate mining in the US and Canada. China is the largest producer of phosphate ...

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Phosphate mining in the United States - Wikipedia

However, a small amount of phosphate was produced in the 1970s, as a byproduct of iron mining in Missouri. [12] Most phosphate mining is of sedimentary phosphorite, a phosphorus-rich deposit formed under shallow marine conditions.

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Mineral Resource of the Month: Phosphate Rock | EARTH Magazine

Phosphate rock was discovered in central Florida in the 1880s, and because of the extensive, high-quality deposits and lower mining cost, it quickly became the leading phosphate-producing state. Currently, phosphate rock is mined in Florida, Idaho, North Carolina and Utah.

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