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2018-04-26T11:04:02+00:00
  • Phosphate Rock Statistics and Information - USGS

    The United States is the world's leading producer and consumer of phosphate rock, which is used to manufacture phosphate fertilizers and industrial products. Subscribe to receive an email notification when a publication is added to this page. Monthly Publications. Mineral Industry Surveys. Marketable Phosphate Rock, Monthly PDF Format:

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    What Is Involved in Phosphate Mining? (with pictures)infobloomPhosphate mining in the United States - Wikipediaen.wikipedia.orgUse of phosphate rocks for sustainable agriculturefao.orgPhosphorus Supply and Demand - MITweb.mit.eduHow phosphate is mined and processedd32ogoqmya1dw8.cloudfront.netRecommended to you based on what's popular • Feedback
  • Phosphate Deposits - USGS

    In the United States about two-thirds of the phosphate con­ sumed is used for agriculture; the remainder is used as chemi­ ... decreasing hardness, and decreasing temperature. Apatite may survive rock weather­ ... 2 The term "phosphate rock" is loosely applied to rocks of any origin that contain more than about 20 percent P2Os. ...

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  • Phosphate Rock - USGS

    Idaho and Utah. Marketable product refers to beneficiated phosphate rock with phosphorus pentoxide (P. 2. O. 5) content suitable for phosphoric acid or elemental phosphorus production. More than 95% of the phosphate rock mined in the United States was used to manufacture wet-process phosphoric acid and superphosphoric acid, which were used as

  • Major deposits of phosphate - USGS

    150 rows  United States. Atlantic coastal plain phosphate province, Blake Plateau/Charleston Bump.

  • NAME OF DEPOSITDEPOSIT TYPESTATE OR PROVINCECOUNTRYBordj RedirSedimentary(not specified)AlgeriaDjebel Kouif (Le Kouif)Sedimentary(not specified)AlgeriaDjebel OnkSedimentary(not specified)AlgeriaM'zaitaSedimentary(not specified)AlgeriaSee all 150 rows on mrdata.usgs.gov
  • Phosphate and How Florida Was Formed

    A “hard rock” phosphate reserve in North Central Florida was discovered next. Thus began Florida’s phosphate mining industry. Florida’s phosphate mining today accounts for about 80% of the phosphate used in the United States, as well as about 25% of the phosphate used around the world.

  • Phosphate mining in the United States - Wikipedia

    OverviewUseGeographyGeologyHistoryEnvironmental impactsByproductsInternational trade

    In 2015, 27.6 million metric tons of marketable phosphate rock, or phosphorite, was mined in the United States, making the US the world's third-largest producer, after China and Morocco. The phosphate mining industry employed 2,200 people. The value of phosphate rock mined was US$2.2 billion. As of 2015, there are 10 active phosphate mines in four states: Florida, North Carolina,

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  • The determination of magnesia in phosphate rock

    (MgO—0.25percent),Floridahardrock(MgO—0.05percent), Wyoming phosphate rock (MgO— 0.08 per cent) andIdahophosphate rock (MgO — 0.31 per cent) 6 wasdecomposed by treatmentwith

  • Phosphorite - Wikipedia

    OverviewClassification of phosphatic sedimentary rocksPhosphorus cycle, formation and accumulationDepositional environmentsProduction and useSee alsoExternal links

    Phosphorite, phosphate rock or rock phosphate is a non-detrital sedimentary rock that contains high amounts of phosphate minerals. The phosphate content of phosphorite (or grade of phosphate rock) varies greatly, from 4% to 20% phosphorus pentoxide(P2O5). Marketed phosphate rock is enriched ("beneficiated") to at least 28%, often more than 30% P2O5. This occurs through washing, screening, de-liming, magnetic

  • Wikipedia Text under CC-BY-SA license
  • Apatite: Its uses as a mineral and gemstone

    PropertiesFormationGeologyCauseUsesProductionPreparationAppearanceApatite is the name of a group of phosphate minerals with similar chemical compositions and physical properties. They are an important constituent of phosphorite, a rock mined for its phosphorus content and used to make fertilizers, acids, and chemicals. Apatite has a relatively consistent hardness and serves as the index mineral for a hardness of five in the Mohs Hardness Scale. Specimens with excellent clarity and color are sometimes cuSee more on geology
  • Mineral Resource of the Month: Phosphate Rock

    Jan 28, 2015  Phosphate rock production and consumption. U.S. production of phosphate rock in 2012 was 30.1 million metric tons, valued at $3.08 billion. Total world production of phosphate rock in 2012 was 233 million metric tons. China was the leading producer, with 41 percent of world production, followed by the United States, Morocco and Western Sahara.

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  • Phosphate Rock Statistics and Information - USGS

    The United States is the world's leading producer and consumer of phosphate rock, which is used to manufacture phosphate fertilizers and industrial products. Subscribe to receive an email notification when a publication is added to this page. Monthly Publications. Mineral Industry Surveys. Marketable Phosphate Rock, Monthly PDF Format:

  • Major deposits of phosphate - USGS

    United States. Atlantic coastal plain phosphate province, Blake Plateau/Charleston Bump. Sedimentary. Google Maps. South Carolina. United States. Atlantic coastal plain phosphate province, Charleston - Beaufort District. Sedimentary.

  • Phosphate Rock - USGS

    Idaho and Utah. Marketable product refers to beneficiated phosphate rock with phosphorus pentoxide (P. 2. O. 5) content suitable for phosphoric acid or elemental phosphorus production. More than 95% of the phosphate rock mined in the United States was used to manufacture wet-process phosphoric acid and superphosphoric acid, which were used as

  • PHOSPHATE ROCK. - USGS

    PHOSPHATE ROCK. By R. W. STONE. Prior to 1914 the United States was producing annually close to 3,000,000 tons of phosphate rock, of which over 99 per cent came from Florida, Tennessee, and South Carolina. Florida produced more than 75 per cent of the total output, including the great bulk

  • Phosphate and How Florida Was Formed

    A “hard rock” phosphate reserve in North Central Florida was discovered next. Thus began Florida’s phosphate mining industry. Florida’s phosphate mining today accounts for about 80% of the phosphate used in the United States, as well as about 25% of the phosphate used around the world.

  • Phosphate mining in the United States - Wikipedia

    In 2015, 27.6 million metric tons of marketable phosphate rock, or phosphorite, was mined in the United States, making the US the world's third-largest producer, after China and Morocco.The phosphate mining industry employed 2,200 people. The value of phosphate rock mined was US$2.2 billion.. As of 2015, there are 10 active phosphate mines in four states: Florida, North Carolina, Idaho, and Utah.

  • Phosphorite - Wikipedia

    Phosphorite, phosphate rock or rock phosphate is a non-detrital sedimentary rock that contains high amounts of phosphate minerals.The phosphate content of phosphorite (or grade of phosphate rock) varies greatly, from 4% to 20% phosphorus pentoxide (P 2 O 5).Marketed phosphate rock is enriched ("beneficiated") to at least 28%, often more than 30% P 2 O 5.This occurs through washing, screening ...

  • Apatite: Its uses as a mineral and gemstone

    The United States, Russia, Morocco, and Western Sahara are also major phosphate producers. Over 75% of the world's reserves of phosphate rock are located in Morocco and Western Sahara. Phosphate rock is the only material that can be used to produce enough fertilizer to satisfy world demand. Without it, farmers would not be able to produce ...

  • Phosphate Rock - an overview ScienceDirect Topics

    In 2013, 32 million tonnes of phosphate rock was processed in the United States; approximately 22 million tonnes of PG was produced in that year. Fig. 4.1 presents the phosphate rock processing and products. PG to date has not received enough attention with regard to utilization in the United States.

  • Phosphorus: Essential to Life—Are We Running Out?

    Apr 01, 2013  Apr 01, 2013  Ninety percent of the phosphate rock reserves are located in just five countries: Morocco, China, South Africa, Jordan and the United States. The U.S., which has 25 years of phosphate rock reserves left, imports a substantial amount of phosphate rock from Morocco, which controls up to 85 percent of the remaining phosphate rock reserves.

  • The determination of magnesia in phosphate rock

    (MgO—0.25percent),Floridahardrock(MgO—0.05percent), Wyoming phosphate rock (MgO— 0.08 per cent) andIdahophosphate rock (MgO — 0.31 per cent) 6 wasdecomposed by treatmentwith

  • Floripedia: Production of Phosphate Rock in Florida During ...

    The production for 1908, 768,011 tons, is the maximum output for the hard rock fields, and unless the phosphate market materially improves is likely to remain the maximum. As in former years the hard rock is consigned largely to foreign markets, although the amount of hard rock used within the United States is gradually increasing.

  • Eaters of the earth: the terrifying, overlooked story of ...

    Apr 22, 2020  Phosphate rock is shipped to plants where it is treated with sulfuric acid, yielding phosphoric acid, which in turn is treated with ammonium to create a water-soluble fertilizer. For every ton of phosphoric acid, this process yields five tons of calcium sulfate, or phosphogypsum, which is dumped into ever-growing piles like St. James Parish’s ...

  • Distribution of uranium in the Florida phosphate field

    Land-pebble phosphate, hard-rock phosphate, and river-pebble phosphate are the three types of phosphatic rock found in Florida. This report is concerned primarily with the land-pebble deposits, the only type which contains a significant amount of uranium. The most productive part of the land-pebble district is in Polk and Hillsborough Counties, in the west-central part of the Florida peninsula.

  • Distribution of uranium in the Florida phosphate field

    Land-pebble phosphate, hard-rock phosphate, and river-pebble phosphate are the three types of phosphatic rock found in Florida. This report is concerned primarily with the land-pebble deposits, the only type which contains a significant amount of uranium. The most productive part of the land-pebble district is in Polk and Hillsborough Counties, in the west-central part of the Florida peninsula.

  • Hardrock Mining Overview - United States Environmental ...

    Eleven common minerals mined are copper, gold, iron ore, lead, molybdenum, phosphate rock, platinum, potash, silver, uranium, and zinc. Economic Value The combined value of the eleven metals and minerals listed above was $12.15 billion, less than 1% of the gross national product in 1993 (U.S. Department of Commerce 1994).

  • Gay Mine (MRDS #10119519) P

    Geographic coordinates: -112.11363, 43.04851 (WGS84) Elevation. 1720. Location accuracy. 10 (meters) Political divisions (FIPS codes) Bingham (county) Idaho (state)

  • Wyoming State Geological Survey

    Introduction. Phosphate rock is the primary source of phosphorus for industrial applications. Phosphorus in phosphate rock most commonly occurs within apatite (Ca 5 (PO 4) 3 (F,Cl,OH). Apatite is found in sedimentary, igneous, and metamorphic rocks.

  • JOHN’S CORNER

    Phosphorites. There are a few sources of phosphate rock from igneous sources and a few found around hydrothermal vents in the deep ocean that we will not discuss. In the United States the majority of rock phosphate comes from deposits in Florida and North Carolina and a small amount of rock phosphate comes from Idaho and Utah.

  • Are We Running Out of Phosphorus? - Utah State University

    fertilizer comes from mined phosphate rock. The phosphorus is then transformed to either phosphoric acid or elemental phosphoru s before being turned into fertilizer (United States Environmental Protection Agency [EPA], 2012). Phosphate rock is used directly as a fertilizer in organic production; but

  • Phosphate Rock Minerals Education Coalition

    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. Some phosphate rock is used to make calcium phosphate nutritional supplements for animals.

  • Commodity Statistics and Information - USGS

    Commodity Statistics and Information. Statistics and information on the worldwide supply of, demand for, and flow of minerals and materials essential to the U.S. economy, the national security, and protection of the environment.

  • Phosphorus Supply and Demand - MIT

    Phosphorus is mined primarily as phosphate rock, a fairly common rock found worldwide. It takes about 1 ton of phosphate to produce 130 tons of grain, although this figure is highly variable depending on soil conditions, farm history, crop type, and fertilizing efficiency (Vaccari, 2009).

  • Phosphate in Western Sahara: The Desert Rock That Feeds ...

    Nov 29, 2016  If you include this disputed region, Morocco holds more than 72 percent of all phosphate-rock reserves in the world, according to the most recent United States

  • Phosphate: A Critical Resource Misused and Now Running Low ...

    Jul 07, 2011  The world’s food supplies are alarmingly dependent on the phosphate fertilizer that is hewn from the desert of the Western Sahara. The vast open-cast mine at Bou Craa delivers several million tons of phosphate rock every year down a 150-kilometer-long conveyor belt, the world’s longest, to the Atlantic port of El Ayoun.

  • ChT 04014 1 - ceng.tu.edu.iq

    PROCESSLVG.I In Florida, both hard and pebble rock phosphate are mined. Hard rock phos- phate occurs as nodules and boulders in irregular pockets, but its exploitation is limited. The more extensive and cheaply mined pebble deposits occur with an average overburden of 6 m, and their phosphatic value is too low for economical processing.

  • SL364/SS565: Landscape Diversity: Florida Phosphate Mine ...

    United States Environmental Protection Agency (US EPA). 1986. Quality Criteria for Water. Office of Water Regulations and Standards. Publication No. EPA-440/5-86-001. United States Geological Survey (USGS). 2011. 2010 Minerals Yearbook. Phosphate Rock. Accessed March 20, 2012.

  • PROPOSED SETTLEMENT WITH UNITED STATES AND MAJOR ...

    Jul 09, 2020  proposed settlement with united states and major fertilizer producer will reduce acidic wastewater generation and enhance phosphate recovery Fertilizer Manufacturer Commits to Further Recover Phosphoric Acid from Production Operations and Spend Nearly $20 Million to Reduce Operations’ Environmental Impacts