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Wet Screening Phosphate Rock

This application discloses a method of wet grinding crude phosphate rock containing clay minerals and the like impurities. The procedures of the invention produce a rock slurry of enhanced fluidity and a desired degree of economy; and the principles of the invention may be applied to rock slurries after size-reduction. The method of the invention contemplates introducing coarsely sized, crude

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  • BACKGROUND REPORT AP-42 SECTION 6.10

    BACKGROUND REPORT AP-42 SECTION 6.10

    rock phosphate rock ground phosphoric acid wet process rock bin acid control scrubber baghouse particulate emissions scrubber particulate and fluoride emissions scrubber scrubber dust cyclone dust cy clone particulate crusher air over-size screen product screen cooler cyclone scrubber recycled pond water emissions and fluoride p ar ti ul e

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  • Phosphate Beneficiation Process

    Phosphate Beneficiation Process

    May 06, 2016 Washing and Screening Phosphate Rock. At the washer the water-matrix slurry discharges into a surge receiving bin or tub and is screened for removal of clay, sand and fine phosphate from the mud balls. The screen oversize passes through a hammer mill to break down the mud balls and occasional large pebbles

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  • WHAT IS A CHEMICAL FERTILIZER?

    WHAT IS A CHEMICAL FERTILIZER?

    Rock phosphate prior to benefication has a phosphate content of 14-35%. Benefication involves mill grinding to 200 mesh in size, wet screening, hydroseparation and floatation to form a product containing 31-33% P2O5, very little is soluble or available to plants unless applied to acid soils with pH 6.0. The concentrated phosphate rock is

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  • Wet grinding method for crude phosphate rock - CF

    Wet grinding method for crude phosphate rock - CF

    I claim: 1. The method of wet grinding crude phosphate rock containing clay minerals or like siliceous impurities, which comprises the steps of: introducing coarsely sized, crude phosphate rock containing clay minerals or the like into a grinding mill with at least about 20% by weight of water; introducing a substantially calcium-free alkaline additive material into the mixture of crude rock

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  • PHOSPHATE FERTILIZER EXPERTISE

    PHOSPHATE FERTILIZER EXPERTISE

    capabilities from phosphate rock to fertilizers. Our Technology office in Lakeland, Florida is an acknowledged leader in the design of the ... Screening and Desliming • Grinding and Classification • Attrition Scrubbing ... removal of gangue minerals by wet or dry size separations, to more complex flowsheets utilizing comminution

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  • Phosphorite Ore Mining Solution - Mineral Processing

    Phosphorite Ore Mining Solution - Mineral Processing

    Phosphate ore crushing equipment generally chooses jaw crusher or gyratory crusher; medium crushing equipment generally chooses cone crusher; screening equipment generally chooses circular vibrating screen or linear vibrating screen. Grinding Phosphate rock is a kind of ore with good grindability

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  • Phosphorite - Wikipedia

    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

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  • Florida Phosphate Mining History

    Florida Phosphate Mining History

    Early separation methods included crushing, washing, screening and, in the case of hard rock, picking out silica by hand on a conveyor belt. Separation advancements in the 1920s and 1930s allowed companies to begin salvaging phosphate particles they had been discarding as waste

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  • BULK MATERIAL DENSITY TABLE - Tapco, Inc

    BULK MATERIAL DENSITY TABLE - Tapco, Inc

    Dicalcium Phosphate 40-50 Disodium Phosphate 25-31 Distiller’s Grain, Spent, Dry 30 Distiller’s Grain, Spent, Wet 40-60 Dolomite, Crushed 80-100 Dolomite, Lumpy 90-100 Earth, As Excavated, Dry 70-80 Earth, Loam, Dry, Loose 76 Earth, Wet, Containing Clay 100-110. Material Description Loose Bulk Density #/Ft. Ebonite, Crushed 65-70 Epsom

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  • Phosphate Rock - an overview | ScienceDirect Topics

    Phosphate Rock - an overview | ScienceDirect Topics

    Wet-process sulfuric acid acidulation is the most common technique for treating phosphate rock. Phosphoric acid is produced by the reaction of sulfuric acid with phosphate rock. Phosphoric acid, also known as orthophosphoric acid, is very often further concentrated by evaporating water and formation of superphosphoric acid

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  • Refined New Technology and Its Application Based on

    Refined New Technology and Its Application Based on

    Iodine in phosphate rock in world is commonly in 0.008~0.013% (ω%) [3]. The phosphate rock in guizhou province is abundant in our country, the content of iodine in phosphate rock also ranked among the top nationwide. The content of iodine in sinian system in central guizhou phosphate rock is in general 0.002~0.005% ((ω), up to 0.04% (ω%)

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  • Compound Fertilizer Granulation Method|NPK,SSP,DAP

    Compound Fertilizer Granulation Method|NPK,SSP,DAP

    Just like single super phosphate, diammonium phosphate is also a type of fertilizer that is rich in phosphate. The main raw material for DAP production is the phosphate ore form phosphate rock. The N:P ration of 1:1 makes it an effective source of nitrogen and phosphate and thus dissolves quickly in soil to release plant-available phosphate and

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  • Minerals | Free Full-Text | Rare Earth and Phosphorus

    Minerals | Free Full-Text | Rare Earth and Phosphorus

    Phosphorite, or phosphate rock, is a kind of igneous or sedimentary rock in which a high amount of phosphate presents as fluorapatite (Ca 5 (PO 4) 3 F), or as hydroxystalline (Ca 5 (PO 4) 3 OH). In the current practice of the phosphate industry, phosphorite is usually upgraded from natural phosphate ore, and then the phosphate concentrate is input to an industrial process, named a wet-process

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  • wet screening phosphate rock

    wet screening phosphate rock

    Sep 14 2013 0183 32 World Phosphate rock reserves and resources - 2010 In areas where water availability is severely restricted dry screening may be 13 The North African and Middle Eastern producers were dry and wet screening sedimentary ores at the time and their recovery was about 70 percent The West African producers at that time were Senegal and Togo

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  • 11.21 Phosphate Rock Processing - US EPA

    11.21 Phosphate Rock Processing - US EPA

    unit for separating phosphate rock mined in Florida begins with wet screening to separate pebble rock that is larger than 1.43 millimeters (mm) (0.056 inch [in.]) or 14 mesh, and smaller than 6.35 mm (0.25 in.) from the balance of the rock

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  • EMISSION FACTOR DOCUMENTATION FOR AP-42

    EMISSION FACTOR DOCUMENTATION FOR AP-42

    unit for separating phosphate rock mined in Florida begins with wet screening to separate pebble rock, which is larger than 1.43 millimeters (mm) (0.056 inch [in.]), or 14 mesh, and smaller than 6.35 mm

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  • Mining and Beneficiation – Phosphate Research Network

    Mining and Beneficiation – Phosphate Research Network

    The phosphate ore is treated by a wet screening where most of the fine phosphate fractions are washed off and separated from the coarse silica. Sometimes the situation could be opposite: the apatite could be coarse and the gangue minerals could be fine

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  • The potential of Hazara phosphates for phosphoric acid

    The potential of Hazara phosphates for phosphoric acid

    The deposits are not beneficiable by dry and wet screening due to significant phosphate losses which take place. Phosphate flotation recoveries are also low. Heavy intensity magnetic separation removes iron after the removal of dust from classified fraction. Acid leaching is efficient for removing MgO (up to 84%) with low P 2 O 5 losses. However, removal of iron and MgO by these methods is not

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  • Purification of wet process phosphoric acid by decreasing

    Purification of wet process phosphoric acid by decreasing

    Jun 15, 2011 The wet-process involves reaction of phosphate rock with an acid (mainly sulfuric acid) to produce crude phosphoric acid, which contains a variety of impurities that vary according to the original of minerals. Wet process phosphoric acid contains a number of organic and inorganic impurities that affect on the grade of the acid

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  • Method for manufacture of phosphoric acid from phosphate

    Method for manufacture of phosphoric acid from phosphate

    The phosphate rock ore may be utilized wet directly from the mining or excavation source without any preparation. Generally, the rock would be crushed to a size from about 10 to 20 mm (3/8 to 6/8 of an inch) and this initially crushed rock is fed in a water slurry, generally in the range of about 50% water, to the high speed grinding equipment with high speed mixing generally in the range from about 150 to 1500

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