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patents on phosphate rock benefication :

US5221466A - Phosphate rock benefication - Google

This invention provides an improved method for the rougher flotation of phosphate ore using sodium carbonate to control the pH at about 9.6-10.5. The method facilitates improved recovery of phosphate from its ore; in addition the Bone Phosphate of Lime (BPL) of the phosphate concentrate increases, which provides further advantages in that subsequent steps are improved by virtue of receiving a ...

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US Patent for Phosphate rock benefication Patent

Phosphate rock benefication Dec 30, 1991 - Freeport-McMoRan Resource Partners, Limited Partnership This invention provides an improved method for the rougher flotation of phosphate ore using sodium carbonate to control the pH at about 9.6-10.5.

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US Patent for Method for beneficiation of phosphate

Method for beneficiation of phosphate rock Mar 16, 1984 - Negev Phosphates Ltd. 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.

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Method for beneficiation of phosphate rock - Chevron ...

In one particularly advantageous embodiment, phosphate rock is mixed with water to form an aqueous slurry wherein the phosphate rock and gangue minerals are dispersed in water and the resulting slurry has from 10% to 20% by weight solids; the pH of the slurry is adjusted to between 10 and 11; pentane and oleic acid are added to the slurry; then agglomerates of phosphates are formed; the phosphate

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patents on phosphate rock benefication - mep-system.fr

patents on phosphate rock benefication. patents on phosphate rock benefication XSM is a leading global manufacturer of crushing and milling equipment (patents on phosphate rock benefication. Live Chat »

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US2903131A - Process for the benefication of

US2903131A US541531A US54153155A US2903131A US 2903131 A US2903131 A US 2903131A US 541531 A US541531 A US 541531A US 54153155 A US54153155 A US 54153155A US 2903131 A US2903131 A US 2903131A Authority US United States Prior art keywords flotation slurry deposit phosphate feed Prior art date 1955-10-19 Legal status (The legal status is an assumption and is not a

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US3652210A - Dearsenication of phosphate rock -

US3652210A US3652210DA US3652210A US 3652210 A US3652210 A US 3652210A US 3652210D A US3652210D A US 3652210DA US 3652210 A US3652210 A US 3652210A Authority US United States Prior art keywords phosphoric acid phosphate rock calcination phosphorus arsenic Prior art date 1968-07-11 Legal status (The legal status is an assumption and is not a legal conclusion.

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Phosphate Rock Beneficiation - 911 Metallurgist

2019-1-20  Phosphate Rock Beneficiation. Many new mines overseas have also become significant. This includes countries such as Senegal, Togo, Israel, Spanish Sahara,

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Rock Benefication Plant From China - najbruk.pl

Patents on phosphate rock benefication xsm is a leading global manufacturer . READ MORE. Gold Ore Rock Dry Flotation Machine In Gold . Flotation is a method that is widely used in gold ore processing plant to process the rock gold,commonly used in dealing with highly floatable sulfide minerals containing gold ore. Flotation process can maximum ...

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Mining and Beneficiation of Phosphate Ore IntechOpen

2016-1-8  The first commercial production of phosphate rock began in England in 1847. A wide variety of techniques and equipment is used to mine and process phosphate rocks in order to beneficiate low-grade ores and remove impurities. The eighth chapter of this book deals with mining and beneficiation of phosphate

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US Patent for Method for beneficiation of phosphate

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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US Patent for Beneficiation of phosphate rock Patent ...

Beneficiation of phosphate rock is therefore widely practiced and, in a first stage, may take the form of washing and concentrating by flotation to remove impurities. A further stage of beneficiation of phosphate rock involves calcining the rock at an elevated temperature to burn off the organic impurities and/or decompose the calcium carbonate ...

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US Patent for Method for beneficiation of phosphate

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 - Chevron ...

The first step in this invention is forming an aqueous slurry of the phosphate rock and gangue minerals. Preferably, this slurry has a solids content of from 10% to 20% by weight and a particle size of less than 500 microns. The aqueous slurry can be formed by adding water to phosphate rock or phosphate slimes.

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US2216040A - Beneficiation of phosphate rock by

US2216040A US326660A US32666040A US2216040A US 2216040 A US2216040 A US 2216040A US 326660 A US326660 A US 326660A US 32666040 A US32666040 A US 32666040A US 2216040 A US2216040 A US 2216040A Authority US United States Prior art keywords flotation phosphate slime desliming phosphate rock Prior art date 1940-03-29 Legal status (The legal status is an assumption

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us patent beneficiation of rock phosphate - BINQ

2013-1-25  phosphate rock patent in malaysia – Gold Ore Crusher. Wet grinding method for crude phosphate rock – US Patent 4113184 patents on phosphate rock benefication. Phosphate Beneficiation,Phosphate Plant »More detailed

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US Patent for Phosphate beneficiation process Patent ...

1991-4-8  A process for the froth flotation separation of phosphate containing minerals by the use of a new collector agent is described. The new phosphate collector agent is prepared by mixing a fatty acid, tall oil pitch, an amine, and optionally sarcosine with fuel or furnace oil, and subsequently oxidizing the mixture by known methods. The new phosphate collector agent is added to the conditioned ...

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Beneficiation of Saudi phosphate ores by column

2013-7-1  The results of this study revealed that column flotation technology is a promising tool for beneficiation of calcareous phosphate ores. A high purity ore of 35% P 2 O 5 can be easily achieved at a high recovery value of 95% starting from a rock contains 25% P 2 O 5, high calcite content (52.7% CaO) and CaO:P 2 O 5 ratio equals 2.1.

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Mining and Beneficiation of Phosphate Ore IntechOpen

2016-1-8  The first commercial production of phosphate rock began in England in 1847. A wide variety of techniques and equipment is used to mine and process phosphate rocks in order to beneficiate low-grade ores and remove impurities. The eighth chapter of this book deals with mining and beneficiation of phosphate ore

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germany rock phosphate beneficiation

Germany Rock Phosphate Beneficiation - , Rock Phosphate Beneficiation Plant and Stone crusher Pakistan For Sale Rock patents on phosphate rock benefication . ... germany rock phosphate beneficiation - Bing PEW series Jaw crusher features big crushing ratio, reliable operation, easy maintenance and low operating cost ...

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US Patent for Phosphate beneficiation process Patent ...

1991-4-8  A process for the froth flotation separation of phosphate containing minerals by the use of a new collector agent is described. The new phosphate collector agent is prepared by mixing a fatty acid, tall oil pitch, an amine, and optionally sarcosine with fuel or furnace oil, and subsequently oxidizing the mixture by known methods. The new phosphate collector agent is added to the conditioned ...

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Phosphate rock benefication

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patents on phosphate rock benefication - vital

On the Phosphate Rock Beneficiation for the Production of ... Jan 01, 1992 Introduction. With the expected commencement [] of fertilizer facilities with TSP, DAP and NPK plants in 1990, the phosphoric acid needs of Saudi Arabia are expected to be around 250.0 tons P205 per year.A new phosphoric acid plant seems in prospect using the phosphate rock from the Sirhan Turayf region in the north ...

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Phosphate Rock Beneficiation Process

patents on phosphate rock benefication « mines crusher for sale beneficiation of phosphate rock. 16 Apr 1985 Patent Citations (4), Referenced by (3), Classifications (7), Legal Events

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phosphate rock patents - sprytnehipoteki.pl

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 ...

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Phosphate Beneficiation Process - 911 Metallurgist

2016-5-6  Phosphate Beneficiation. Market Specifications Bone phosphate of lime, 70 to 72 per cent, common. Bone phosphate of lime 72 to 77 per cent, premium. Production Problems. Phosphate rock being a low-priced material is produced as near the

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germany rock phosphate beneficiation

Germany Rock Phosphate Beneficiation - , Rock Phosphate Beneficiation Plant and Stone crusher Pakistan For Sale Rock patents on phosphate rock benefication . ... germany rock phosphate beneficiation - Bing PEW series Jaw crusher features big crushing ratio, reliable operation, easy maintenance and low operating cost ...

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Phosphate Beneficiation ArrMaz

Phosphate Beneficiation. Phosphate is a key element in all living organisms. It is found in phospholipids in every biological membrane, as a component in adenosine triphosphides (ATP) which fuel cell functions, and in bones and teeth as calcium phosphate.

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phisphate rock benefication method - paraguay

phisphate rock benefication method. Method For Beneficiation Of Phosphate Rock - Method For Beneficiation Of Phosphate Rock. We are a large-scale manufacturer specializing in producing various mining machines including different types of sand and gravel equipment, milling equipment, mineral processing equipment and building materials equipment.

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Environmental impact of phosphate mining and

The radioactivity of phosphate rock was probably first observed in 1908, when the British physicist R. Strutt found that samples of phosphorite were many times more radioactive than the average rocks of the Earth's crust. 23 The dominant radioactivity detected in phosphate rocks are uranium, thorium and their decay products in equilibrium with ...

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