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Abstract: A method and system for conducting wet grinding of mined phosphate rock before utilizing the same for the production of phosphoric acid by the wet process method, the method comprising the steps of: (1) wet grinding the phosphate rock in a medium of fresh water at a first stage so as to form a fresh water slurry comprising ground rock and fresh water, (2) sending the fresh water ...

Aug 22, 1978· 1. A method for the manufacture of phosphoric acid from phosphate rock comprising (a) mixing crushed phosphate rock with a stoichiometric excess of phosphoric acid in the presence of water to form a slurry and heating the slurry at a temperature and for a period of time sufficient to convert the rock into a calcium monophosphate;

Phosphate fertilizers are prepared by beneficiation of phosphate rock to remove its impurities, followed by drying and grinding. The PO 4 in the rock may then be reacted with sulfuric acid to produce normal superphosphate fertilizer. Over 100 plants operating in the United States produce approximately a billion kilograms of phosphate fertilizer ...

Process Of Ball Mill Phosphate ball mill for phosphate ore processing . Ball mill grinding of phosphate rock to prepare the phosphate rock for use in the The practice of using acidic process water for makeup water for wet grinding English pdf SciELO SA when attempting to scale processes. that, for the size ranges typical of ball mills, the energy per . for the ...

Tests to simulate the performance of the reactor agitators used in the production of wet process phosphoric acid (WPA) by reacting phosphate rock and sulfuric acid was conducted. The wet process ...

Phosphoric Acid Plant 400,000 TPY ... phosphate can be supplied in slurry form (wet grinding); it is easy to control the water balance (recycle pond water, reduction/elimination of liquid effluents); it achieves good P2O5 yield. ... Phosphate Rock Conveyor Phosphoric Acid Heat Exchanger Swenson Graphite Heat Exchanger

usa wet grinding phosphate rock in an acidic . phosphate rock contained in an acidic slurry is ground by equipment wherein the acidic slurry contacts the metallic surfaces of the equipment. a method for monitoring and controlling grinding ball . Get Price.

Wet Grinding Phosphate Rock In An Acidic Slurry. Patents by Inventor John L. Martinez Justia. Abstract: A method and system for conducting wet grinding of mined phosphate rock before utilizing the same for the production of phosphoric acid by the wet process method, the method comprising the steps of: (1) wet grinding the phosphate rock in a ...

Nov 27, 1984· A method and system for conducting wet grinding of mined phosphate rock before utilizing the same for the production of phosphoric acid by the wet process method, the method comprising the steps of: (1) wet grinding the phosphate rock in a medium of fresh water at a first stage so as to form a fresh water slurry comprising ground rock and fresh water, (2) sending the fresh water slurry .

Dec 06, 2012· Wet grinding phosphate rock in an acidic slurry – US Patent .. Patent Description: 1. Field Of The Invention This invention relates to the process for monitoring and controlling the ball consumption rate when wet grinding . »More detailed

USA Wet grinding phosphate rock in an acidic ... Phosphate rock contained in an acidic slurry is ground by equipment wherein the acidic slurry contacts the metallic surfaces of the equipment. A method for monitoring and controlling grinding ball consumption is provided in which acidneutralizing particulate iron contained in the acidic ...

sulfuric acid rock phosphate rock phosphate mill for phosphoric acid pants Gold Ore . phosphate rock processing plants Grinding Mill China The sulfuric acid that is needed to convert the phosphate rock into phosphoric .

Process for the Recovery of Phosphate from Phosphate rock; Phosphate rock Utilization; Wet grinding Phosphate rock in an acidic slurry; Function. The effect of Phosphate Rock on Arsenic uptake in a multimetal system. Bioactivation of Poorly Soluble Phosphate Rocks with a PhosphorusSolubilizing Fungus

Mar 25, 1986· This invention includes a method that provides for economical grinding of phosphate rock in an acidic slurry wherein iron or mild steel balls are used and the acidic diluting medium used to make up the slurry is obtained, in whole or in part, from waste water produced during the other steps of the wet process manufacture of phosphoric acid.

Sep 12, 1978· 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 sizereduction.

Aug 23, 1977· Wet process phosphoric acid is made by grinding phosphate rock as a slurry in water, and digesting the ground rock slurry with sulfuric acid which has been diluted by spent calcium sulfate wash water before being combined with the ground slurry.

With this method the increased inputs of water, either from undried phosphate rock, wet grinding of phosphate rock, use of dilute sulfuric acid, or from other sources will not interfere with associated high P 2 O 5 yields, lower concentrations of filtrate phosphoric acid .

Wet grinding phosphate rock in an acidic slurry , Mar 25, 1986· This invention relates to the process for monitoring and controlling the ball consumption rate when wet grinding phosphate rock in an acidic slurry More particularly, the method of the invention relates to determining and maintaining a level of acidneutralizing particulate iron ...

An economical process for treating the acidic pond water to be used in the internal grinding circuit of a wet process phosphoric acid plant. Water is added to a quantity of a hydratable calcium compound, such as quicklime, to form a slaked lime slurry. A sufficient quantity of the slaked lime slurry is reacted with the acidic pond water to obtain a low fluoride solution having a fluoride ...

The mined ore is crushed and washed, creating a slurry, this ore slurry is then treated with fatty acids to cause calcium phosphate to become hydrophobic. This rock phosphate is then either solubilized to produce wetprocess phosphoric acid, or smelted to produce elemental phosphorus.

Abstract: Wet process phosphoric acid is made by grinding phosphate rock as a slurry in water, and digesting the ground rock slurry with sulfuric acid which has been diluted by spent calcium sulfate wash water before being combined with the ground slurry.

Process Technology of Phosphoric Acid. There are two main commercial processes to produce phosphoric acid: the wet process and the dry [] (electrical furnace), the acid produced (technical grade) with the dry process is pure, its production cost is much higher than that of the wet process phosphoric acid (WPPA or fertilizer grade acid).

The issues existed in rock wet grinding process matched with WPA ... A new process for phosphate rock grinding is put forward by rod and ball mill with multiple section, loop system, the percentage of the particles less than ...

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