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The phosphorus in apatite

  • Countries With the Largest Phosphate Reserves - WorldAtlas

    Mar 23, 2018· Several steps have been put in place to reduce the over-reliance on phosphorus. Some of the programs include promotion of smarter fertilizer use and exploration of new mining areas. Although phosphorus is non-renewable, it can be recycled and reintroduced to the environment as a means of preserving the existing reserves.

  • Apatite dissolution kinetics and the long-germ phosphorus

    Apatite is the primary exogenic sink of phosphorus (P). The weathering of apatite contained in continental rocks and sediments compensates for the P loss via sediment subduction over geologic time scales. P availability may control marine net ecosystem production over geologic time scales and thus apatite weathering rates may control long-term

  • Gemstone Information - Apatite Meaning and Properties

    In manufacturing, apatite is a source of phosphorus for fertilizer. Moon rocks brought back to earth by Apollo astronauts in the late 1960s and early 1970s were found to contain traces of apatite. Apatite Metaphysical Properties

  • Apatite: From Crystals to Phosphate Rock Rock & Gem Magazine

    Nov 05, 2020· In the form of apatite, phosphorus is essential to plant life for growth and photosynthesis, and to animal life as a vital component of genes, teeth, bones, and muscles. Fluorapatite, the hardest, most durable and abundant, of the three apatite minerals, is the primary component of vertebrate bones and teeth.

  • Phosphorus cycle - Wikipedia

    The most abundant primary phosphorus-mineral in the crust is apatite, which can be dissolved by natural acids generated by soil microbes and fungi, or by other chemical weathering reactions and physical erosion. The dissolved phosphorus is bioavailable to terrestrial organisms and plants and is returned to the soil after their decay.

  • Synthetic apatite nanoparticles as a phosphorus fertilizer

    Synthetic apatite nanoparticles as a phosphorus fertilizer for soybean (Glycine max) Some soluble phosphate salts, heavily used in agriculture as highly effective phosphorus (P) fertilizers, cause surface water eutrophication, while solid phosphates are less effective in supplying the nutrient P.

  • Phosphorous Content Of Apatite

    Apatite - Phosphate Minerals. Apatite is a family of minerals centered around fluorapatite, or calcium phosphate with a bit of fluorine, with the formula Ca 5 (PO 4) 3 F.

  • Apatite weathering and the Phanerozoic phosphorus cycle

    Jul 01, 2000· Geochemical arguments suggest that phosphorus is the culprit. The weathering of apatite, the primary phosphorus sink in Earth's exosphere, controls long-term phosphorus availability.

  • Apatite and phosphorus in mantle source regions: An

    Because of the high solubility of apatite in basic magmas, phosphorus can be confidently treated as an incompatible element in peridotite melting models. Such models, in combination with observed characteristics of basic lavas, indicate that the upper mantle contains 200 ppm of phosphorus, much less than the chondritic abundance of 900 ppm.

  • Phosphate Deposits - USGS

    P2O5.1 Most of the phosphorus in the earth's crust, however, occurs in species of the apatite group, Cai0 (P04,C03 )6 (F,Cl,OH)2 (Palache and others, 1951, p. 877; Altschuler and others, 1958; Deer and others, 1962, p. 324). The structure of apatite favors a wide

  • Pyrometallurgical Treatment of Apatite Concentrate with

    Nov 28, 2017· Apatite is a common raw material both for the production of elemental phosphorus (P4), as shown in Fig. 1, and for phosphorus pentoxide (P2O5), which is used primarily to produce phosphoric acid [1, 2]. One possible production route for both products is via carbothermic reduction of apatite.

  • Phosphorus retention by granulated apatite: assessing

    Jan 07, 2021· The kinetics and phosphorus retention capacity of granulated apatite are low and do not ensure long-term removal. Access to apatite surface in the granule is hindered by the binder matrix. Hydroxyapatite and carbonated-hydroxyapatite precipitate within the granule onto the binder matrix at low calcium concentration.

  • Solubilization of Phosphorus from Apatite by Sulfuric Acid

    The phosphorus (P) present in apatitic materials is largely in forms that are not readily available for most arable crops. Many attempts have been made to increase the dissolution of phosphate rock. Hence, soluble P or superphosphate used as fertilizer has been produced by the industrial acidification of apatite

  • Transformation of apatite phosphorus and non-apatite

    Transformation from non-apatite inorganic phosphorus (NAIP) to apatite phosphorus (AP), which has a higher bioavailability and more extensive industrial applications, was studied at 750-950°C by sewage sludge incineration and model compound incineration with a calcium oxide (CaO) additive.

  • Geochemistry of Uranium in Apatite and Phosphorite

    Petrographic and chemical analyses and nuclear emulsion studies have shown that uranium in apatite is disseminated rather than locally concentrated. In addition, phosphate deposits are essentially devoid of uranium minerals. The igneous apatites contain from 10 to 66 percent of their uranium as U(IV).

  • Geochemistry of phosphorus and the behavior of apatite

    Dec 01, 2019· The concentration of phosphorus in glassy melt inclusions and rehomogenized nanogranitoids suggests a strong control of melt aluminosity on apatite solubility in peraluminous granites, which is consistent with existing experimental studies.

  • Phosphorus Basics: Understanding Phosphorus Forms and

    Apr 29, 2021· Examples of primary phosphorus minerals include apatite, strengite, and variscite. The secondary phosphorus minerals include calcium (Ca), iron (Fe), and aluminum (Al) phosphates. The release of phosphorus from this pool is extremely slow and occurs when the mineral weathers and dissolves in soil water.

  • Apatite Mineral Physical - Optical Properties

    The most important deposits of apatite are in sedimentary rocks formed in marine and lacustrine environments. There, phosphatic organic debris had accumulated and was mineralized during diagenesis. As a mineral, apatite is chiefly used as a phosphorus

  • APATITE: 3 MINERALS, ONE NAME

    Jan 13, 2017· Apatite is the main source of phosphorus, and is an important constituent of phosphorite, a phosphate-rich sedimentary rock mined for its phosphorus content and used to make fertilizers, acids, and chemicals used in the chemical and pharmaceutical industries. The thermal history of mountain belts, of sedimentary deposits, and of paleo-wildfires

  • Mineral Resource of the Month: Phosphate Rock

    Jan 28, 2015· As a mineral resource, phosphate rock is defined as unprocessed ore and processed concentrates that contain some form of apatite, a group of calcium phosphate minerals that is the primary source for phosphorus in phosphate fertilizers, which are vital to agriculture.

  • What is the Apatite family? - Quora

    Apatite family is a group that mainly contain phosphorus as a prime mineral. Along with phosphorus mainly elements are present along with it and hence the name e.g. Flourapapite, hydroxylapatite, Chlorapatite etc. containing F- , OH- and Cl- respe

  • apatite and phosphorus mining - El Caribe

    phosphorus apatite mining crusherasia. phosphorus apatite mining. Phosphorus Wikipedia, the free encyclopedia . Phosphorus is a nonmetallic chemical element with symbol P and atomic number 15. Reviews: 2.6KInquire Now; Apatite Wikipedia. The primary use of apatite is in the manufacture of fertilizer it is a source of phosphorus.

  • Processes for phosphorus removal from iron ore - a review

    The phosphorus content dropped from 0.82% to 0.06% and iron from 43.65% to 60.23% with 87% mass recovery. Analysis showed that 20% of apatite reacted with SiO 2, Al 2 O 3 and carbon, generating elemental phosphorus in the form of gas. About 80% of the phosphorus was incorporated into the slag and it was separated from the grinding and magnetic

  • Apatite as an interesting seed to remove phosphorus from

    Apatite as an interesting seed to remove phosphorus from wastewater in constructed wetlands. Molle P(1), Liénard A, Grasmick A, Iwema A, Kabbabi A. Author information: (1)Cemagref, Research unit: Water Quality and Pollution Prevention, Lyon, France. [email protected]

  • Apatite: The mineral apatite information and pictures

    Apatite is the main source of phosphorus. Phosphorus was previously extracted from crystalline Apatite, but nowadays is extracted from enormous deposits of Apatite-rich rock. Apatite is essential in the manufacture of phosphate fertilizers, and is very important in the chemical and pharmaceutical industries.

  • Apatite weathering and the Phanerozoic phosphorus cycle

    Jul 01, 2000· Geochemical arguments suggest that phosphorus is the culprit. The weathering of apatite, the primary phosphorus sink in Earth's exosphere, controls long-term phosphorus availability.

  • Apatite mineral Britannica

    Apatite, any member of a series of phosphate minerals, the worlds major source of phosphorus, found as variously coloured glassy crystals, masses, or nodules.

  • Geochemistry of phosphorus and the behavior of apatite

    Dec 01, 2019· The concentration of phosphorus in glassy melt inclusions and rehomogenized nanogranitoids suggests a strong control of melt aluminosity on apatite solubility in peraluminous granites, which is consistent with existing experimental studies.

  • The Varied Uses and Forms of Apatite Will Raise Your

    As a mineral, apatite is chiefly used as a phosphorus source for the manufacture of fertilizers. Apatite mineral uses also extend to fluoridating water, and a protective coat of apatite on metals prevent it from rusting. One of the primary physical properties of apatite is that, in its mineral form, apatite is very stable and does not easily

  • The Significance of Apatite Inclusions in Soil Phosphorus

    of apatite, i.e., whether present as separate grains of apatite or as inclusions within other minerals. In a study of the amounts and distribution of the forms of inorganic phosphorus in a New Zealand chronosequence of soils developed on windblown sand, it was found that included apatite was the dominant form of phosphorus in the parent

  • Synthetic apatite nanoparticles as a phosphorus fertilizer

    Jul 14, 2014· Agriculture is the major user of mined phosphorus (P), accounting for 8090% of the world demand for P 1.Increasing population, growing preferences towards meat

  • Phosphate Deposits - USGS

    P2O5.1 Most of the phosphorus in the earth's crust, however, occurs in species of the apatite group, Cai0 (P04,C03 )6 (F,Cl,OH)2 (Palache and others, 1951, p. 877; Altschuler and others, 1958; Deer and others, 1962, p. 324). The structure of apatite favors a wide

  • Phosphorous availability influences the dissolution of

    Although apatite is the predominant form of mineral phosphorus in the Earths crust, biological forms (i.e. dental and skeletal apatite) have received most attention in kinetic studies. Dissolution experiments with fluorapatite under geologically relevant conditions demonstrate that rates are

  • Phosphorus Basics: Understanding Phosphorus Forms and

    Apr 29, 2021· Mineral phosphorus: This phosphorus pool is comprised of primary and secondary phosphate minerals present in soil. Examples of primary phosphorus minerals include apatite, strengite, and variscite. The secondary phosphorus minerals include

  • Apatite Value, Price, and Jewelry Information

    Most of the gemstones referred to as apatite are of the commonest variety, fluorapatite. Other gem-quality apatites include the aforementioned hydroxylapatite as well as carbonate-rich apatite, mimetite, moroxite, vanadinite, wilkeite, and the rare chlorapatite.. Lazurapatite, a mixture of lapis lazuli and apatite, occurs in Siberia.. Strictly speaking mineralogically, the term apatite

  • Phosphorus Cycle APES Los Angeles High School

    Phosphorus can be deposited on the sea floor and remain there for millions of years. Compounds found in the cycle The availability of phosphorus in an ecosystem is restricted by the rate of release of this element during weathering. The release of phosphorus from apatite dissolution is a key control on ecosystem productivity.

  • Which Minerals Include Phosphate? - ThoughtCo

    Feb 13, 2019· Apatite (Ca 5 (PO 4) 3 F) is a key part of the phosphorus cycle. It is widespread but uncommon in igneous and metamorphic rocks. Apatite is a family of minerals centered around fluorapatite, or calcium phosphate with a bit of fluorine, with the formula Ca 5 (PO 4) 3 F.

  • Environmental impact of phosphate mining and beneficiation

    Jun 28, 2018· Apatite is commonly very insoluble in its original state as extracted from the earth and is practically unavailable as a plant phosphorus source. 7 For this reason, drastic chemical processing

  • Apatite Control of Phosphorus Release to Runoff from Soils

    Specificsurfacearea.Apatite.Dissolution. Reclamationarea.Surfacerunoff 1 Introduction Phosphorus (P) carried in surface runoff from agri-cultural lands has been studied extensively and Water Air Soil Pollut (2009) 202:189198 DOI 10.1007/s11270-008-9969-4 Y.-M. Kuo Department of Bioenvironmental Systems Engineering, National Taiwan University,