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method for beneficiation of phosphate rock

US4388180A Method for beneficiation of phosphate rock

Method for beneficiation of phosphate rock Download PDF Info Publication number US4388180A. US4388180A US06/330,300 US33030081A US4388180A US 4388180 A US4388180 A US 4388180A US 33030081 A US33030081 A US 33030081A US 4388180 A US4388180 A US 4388180A Authority US United States Prior art keywords slurry phosphate rock agglomerant agglomerates phosphate

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US4511543A Method for beneficiation of phosphate rock

The present invention relates to a method for beneficiation of phosphate rock by a thermal treatment, wherein an appreciable increase in P 2 O 5 and decrease in cadmium contents in the calcined product are achieved. According to the invention, the phosphate rock is contacted with hot gases possessing a temperature in the range of between 700° C. to 1600° C. for a period of below 60 seconds

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Method for beneficiation of phosphate rock Chevron

Method for beneficiation of phosphate rock . United States Patent 4388180 . Abstract: A process is disclosed which removes gangue minerals from phosphate rock by forming an aqueous slurry of phosphate rock and its impurities, then using a low boiling, nonpolar, water insoluble, bridging hydrocarbon to selectively agglomerate the phosphates. Inventors: Rainis, Andrew (Walnut Creek, CA

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Method for beneficiation of phosphate rock Negev

The present invention relates to a method for beneficiation of phosphate rock by a thermal treatment, wherein an appreciable increase in P 2 O 5 and decrease in cadmium contents in the calcined product are achieved. According to the invention, the phosphate rock is contacted with hot gases possessing a temperature in the range of between 700° C. to 1600° C. for a period of below 60 seconds

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Phosphate Beneficiation Process

Large scale mining and processing of phosphate is essential for operating at a profit. In the Florida area, Phosphate Beneficiation by flotation unlocked the door to vast tonnages of ore which in the past could not be recovered by conventional washing methods which saved only the coarser pebble phosphate. Many of the areas now being mined contain very little or no pebble phosphate, so the main

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Method For Beneficiation Of Phosphate Rock Cromalinsupport

beneficiation ; photoelectric sorting, magnetic shield method,in which flotation process is common widely used phosphate rock sorting process, including Reverse Flotation Process. The Cabinet also approved beneficiation of Rock Phosphate and Muriate of Phosphate (MOP) and other important raw materials for the production of potassium based fertilizers with a long-term agreement for 100% off

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US Patent for Method for beneficiation of phosphate rock

Method for beneficiation of phosphate rock Dec 14, 1981 Chevron Research Company A process is disclosed which removes gangue minerals from phosphate rock by forming an aqueous slurry of phosphate rock and its impurities, then using a low boiling, nonpolar, water insoluble, bridging hydrocarbon to selectively agglomerate the phosphates.

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Method For Beneficiation Of Phosphate Rock Pnmwg Fertilizers

Method For Beneficiation Of Phosphate Rock Stake or cage your tomatoes. —–Equipment for Sale. Not covered by the NPK fertilizer ratio is the micro-nutrients. The fruit of palm trees will rot and gives off an unpleasant odor if it is allowed to fall from the tree. If you want to grow tomatoes in pots you don’t need a lot of space. The Non-judicious use of chemical fertilizers and

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US Patent for Method for beneficiation of phosphate rock

The present invention relates to a method for beneficiation of phosphate rock by a thermal treatment, wherein an appreciable increase in P.sub.2 O.sub.5 and decrease in cadmium contents in the calcined product are achieved. According to the invention, the phosphate rock is contacted with hot gases possessing a temperature in the range of between 700.degree.

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11.21 Phosphate Rock Processing

Phosphate rock from the mines is first sent to beneficiation units to separate sand and clay and to remove impurities. Steps used in beneficiation depend on the type of rock. A typical beneficiation 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

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US4511543A Method for beneficiation of phosphate rock

The present invention relates to a method for beneficiation of phosphate rock by a thermal treatment, wherein an appreciable increase in P 2 O 5 and decrease in cadmium contents in the calcined product are achieved. According to the invention, the phosphate rock is contacted with hot gases possessing a temperature in the range of between 700° C. to 1600° C. for a period of below 60 seconds

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Chemical Beneficiation of Phosphate Rock E & MJ

Dilute nitric acid [20%] or dilute hydrochloric acid [10%] can be used to one’s advantage for leaching phosphate rock. This permits the use of standard hydrometallurgical processes such as in situ, vat and heap leaching. The reaction is rapid and does not need agitated reactors.

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Mining and Beneficiation Phosphate Research Network

The ore extraction could be underground or open pit which is the most common method. The main phosphate rock extraction stages in open pit are drilling, blasting, excavating, loading, haulage and dumping. The overburden, is dug with draglines or dozers, after blasting and placed into a pit.

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On the Phosphate Rock Beneficiation for the Production of

01/01/1992 In the beneficiation of Florida phosphate rock, flotation plays a predominant role because it is the most economical way to separate the phosphate values from the sand and other impurities contained in the matrix. Typically, the matrix is washed and deslimed at 150 mesh. The material finer than 150 mesh is pumped to clay settling ponds.

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Method For Beneficiation Of Phosphate Rock Pnmwg Fertilizers

Method For Beneficiation Of Phosphate Rock Stake or cage your tomatoes. —–Equipment for Sale. Not covered by the NPK fertilizer ratio is the micro-nutrients. The fruit of palm trees will rot and gives off an unpleasant odor if it is allowed to fall from the tree. If you want to grow tomatoes in pots you don’t need a lot of space. The Non-judicious use of chemical fertilizers and

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(PDF) Beneficiation of Akashat Phosphate Rocks by

phosphate ore from Akashat deposit as an alternative method to the existing calcination method. Prior to flotation experiments, a feed flotation was prepared by washing and desliming operations on...

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US Patent for Method for beneficiation of phosphate rock

The present invention relates to a method for beneficiation of phosphate rock by a thermal treatment, wherein an appreciable increase in P.sub.2 O.sub.5 and decrease in cadmium contents in the calcined product are achieved. According to the invention, the phosphate rock is contacted with hot gases possessing a temperature in the range of between 700.degree.

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Innovations in beneficiation technology for low grade

Low grade phosphate rocks are not suitable for direct use in acidulation plants unless their tricalcium phosphate (TCP) content is increased to 70% or more, using conventional methods such as crushing, screening, and drying, or some other physical separation process which include washing and desliming.

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Phosphorite Wikipedia

Beneficiation of phosphate ore is a process which includes washing, flotation and calcining. Froth flotation is used to concentrate the mined ore to rock phosphate. The mined ore is crushed and washed, creating a slurry, this ore slurry is then treated with fatty acids to

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(PDF) Reagents used in the flotation of phosphate ores: A

Froth flotation method has been an important part of the concentration process since the 1920s and today, more than half of the world’s marketable phosphate is produced by froth flotation. The...

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Chemical Beneficiation of Phosphate Rock E & MJ

Dilute nitric acid [20%] or dilute hydrochloric acid [10%] can be used to one’s advantage for leaching phosphate rock. This permits the use of standard hydrometallurgical processes such as in situ, vat and heap leaching. The reaction is rapid and does not need agitated reactors.

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Mining and Beneficiation Phosphate Research Network

The ore extraction could be underground or open pit which is the most common method. The main phosphate rock extraction stages in open pit are drilling, blasting, excavating, loading, haulage and dumping. The overburden, is dug with draglines or dozers, after blasting and placed into a pit.

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A Tailor Made Approach for the Beneficiation of Phosphate Rock

In parallel, beneficiation methods for phosphate rock are finite and include: comminution and size separation (crushing, grinding, attrition, screening and classification), mineral separation (flotation, gravity and magnetic separation) and ocassionally, chemical and thermal methods (acidulation, calcination etc.). Despite the fact that flotation is a universal beneficiation operation, applied

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Beneficiation of phosphate ore International Mining

The Society for Mining, Metallurgy & Exploration (SME) has announced the availability of Beneficiation of Phosphate Ore. This new publication examines various methods for processing phosphate rock. Phosphoric acid has a wide variety of uses such as the production of fertilisers, pharmaceuticals and

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Method For Beneficiation Of Phosphate Rock Pnmwg Fertilizers

Method For Beneficiation Of Phosphate Rock Stake or cage your tomatoes. —–Equipment for Sale. Not covered by the NPK fertilizer ratio is the micro-nutrients. The fruit of palm trees will rot and gives off an unpleasant odor if it is allowed to fall from the tree. If you want to grow tomatoes in pots you don’t need a lot of space. The Non-judicious use of chemical fertilizers and

get price

Innovations in beneficiation technology for low grade

Low grade phosphate rocks are not suitable for direct use in acidulation plants unless their tricalcium phosphate (TCP) content is increased to 70% or more, using conventional methods such as crushing, screening, and drying, or some other physical separation process which include washing and desliming.

get price

phosphate beneficiation method .pdf BINQ Mining

> Crusher and Mill > phosphate beneficiation method .pdf; Print. phosphate beneficiation method .pdf. Posted at:April 5, 2013[ 4.8 1686 Ratings] mineral beneficiation- Environment Clearance. 26 Feb 2010 be processed further by a specified method depending on the mineral and waste product (s) associated with it. The beneficiation methods and »More detailed. a clean technology

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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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Rapid Determination of Mg, Fe, Al, Etc., in Rock Phosphate

The method of analysis is developed in chemical laboratory of RODL, IBM, Bangalore for rock phosphate sample which is not only very fast and accurate but also maximum number of required elements can be analysed in the prepared solution. This method was used for the analysis of ore dressing products obtained while carrying out the beneficiation studies on rock phosphate samples

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Chemical and structural changes of raw phosphate during

the different experimental parameters on the beneficiation of phosphate ores by heat treatment has been considered by several authors (3-7). Previous investigations (8-10) were successful to enrich the low-grade calcareous phosphate using heat treatment. Kaljuvee et al. (6) proposed the calcination-separation method for the separation of carbonaceous phosphates issues from Kazakhastan region

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