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The phosphate rock is initially converted to phosphoric acid (P 2 O 5) by reaction with sulfuric acid. Inorganic phosphates are mined to obtain phosphorus for use in agriculture and industry. max (+4 mesh) + 65% ~ 80% min (-4 ~ +100mesh) + OXIDE, MAGNESIUM - 22, 28 Rock Phosphate is formed in oceans in the form of calcium phosphate, called phosphorite. Phosphate rock and fertilizer grade is almost universally expressed by those in this field as phosphate pentoxide (P205). - 20, 44 + 1% ~ 3% (-270mesh), Nutrient - 44, Urea - 39, 10 What is Rock Phosphate? - 25, 13 - 21, 35 Phosphates are the naturally occurring form of the element phosphorus, found in many phosphate minerals. - 48, SALES The average P2O5 is 35% , at times higher , for the phosphate ore rich ore.Rock phosphate also contains CaF2 or CaCl2 and the chemical formula can be written Ca5(PO4)3Cl or 3Ca3(PO4)2.Ca(F,Cl)2. The largest and least expensive source of phosphorus is obtained by mining and concentrating phosphate rock from the numerous phosphate deposits of the world. IDENTIFICATION, GENERAL The phosphate content of phosphorite (or grade of phosphate rock) varies greatly, from 4% to 20% phosphorus pentoxide(P2O5). It is also important for the development of teeth and bones. This zone extend downwards to a depth of around 60m and rests on fresh carbonatite with appetite, magnetite and spinel. - 16, 20 Despite such widespread use, the latter … Sulfate, 30 - 21, 46 PHOSPHATE, SOLUBLE All rights reserved, The mailbox will be used as the login user name and retrieve the password, (File Format: Jpg, Gif, Png, PDF,Zip,Txt,doc or xls Max Size: 3MB), Nitrogen phosphorus potassium mixed fertilizer, Nitrogen-Phosphorus-Potassium compound fertilizer with sulphur, Hubei willow ditch Chemical Technology Co., Ltd, Hubei Organic And Phosphoric Chemicals Import & Export Co., Ltd, Yick-Vic Chemicals & Pharmaceuticals (HK) Ltd. The largest global producer and exporter of phosphates is Morocco. - 55, 43 Four kinds of phosphate rocks are recognized: hard rock phosphate, sofc rock phosphate, land pebble phosphate and river pebble phosphate, with the phosphorus content varying from 2 to 21 % - 32, Urea +Add Attachment A phosphate salt is obtained when a positively charged ion gets attached to the oxygen atoms that are negatively charged and forms an ionic compound. These minerals are called apatites. The chemical formula for phosphate rock is Ca5FO12P3. There are four kinds of phosphate rocks: This mineral formula is also called calcium carbonate-fluorapatite. PRODUCT - 18, Slag In the past, rock phosphate was used alone as a fertilizer, but due to a lack in supply, as well … The actual composition varies depending on it’s source but it usually contains 16 to 20% P. CHLORODE, POTASSIUM Phosphate rock of 70 to 75% BPL, or as high as is reasonably obtainable, is finely ground in a ball mill and then mixed with cooled recycled phosphoric acid-gypsum slurry in a digestion tank (Figs. Christmas Island Rock Phosphate (CIRP) was formed by slow phosphatisation of the parent sedimentary and volcanic rocks over millions of years. Ammonium Phosphate, 21 - 52, 12 The most predominant mineral of phosphate is francolite which is calcium carbonate-fluorapatite of formula [Ca 5 (PO 4,CO 3) 3 (F,OH)]. -27, 20 Chemical Name : Calcium (Fluoro, Chloro, Hydroxyl) Phosphate. 15% ~ 25% (-100 ~ +200mesh) + 1% ~ 3% (-200 ~ +270mesh) In mineralogy and geology, phosphate refers to a rock or ore containing phosphate ions. Marketed phosphate rock is enriched ("beneficiated") to at least 28%, often more than 30% P2O5. - 34, 18 By comparison, the average phosphorus content of sedimentar… - 28, 20 The term phosphate rock (or phosphorite) is used to denote any rock with high phosphorus content. The most common rock phosphate mined is fluorapatite, which contains impurities like CO3, Na and Mg. Carbonate-fluorapatite (francolite) is primary apatite mineral in the majority of phosphate rocks. It is used directly in fertilizer and as a source of phosphorous compounds. Rock Phosphate Fertilizer Phosphate is essential in building a biological soil, it is a major building block in all living plants and crucial for plants to develop healthy root systems, set fruit and assimilate nutrients for good plant growth. - 54, 48 it is available at highly feasible prices in the market among our competitors. - 41, 26 Rock phosphate, or phosphorite, is mined from clay deposits that contain phosphorus and is used to make organic phosphate fertilizers that many gardeners utilize. Phosphorite, phosphate rock or rock phosphate is a non-detrital sedimentary rock that contains high amounts of phosphate minerals. 'Rock Phosphate' is a sedimentary rock composed of phosphate minerals high enough, especially apatite. Apatite includes 10 mineral species and has the general formula X 5 Y (PO 4) 3, where X is usually Ca 2+ or Pb 3+ and Y is F -, Cl … ROCK PHOSPHATE Chemical Composition PRP Moisture (%by wt) : 1.5 max. - 40. 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