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We claim: 1. In a process system where uranium values in a water slurry of crushed uranium ore are treated by a solution of carbonate in system water to convert the uranium to a soluble uranyl tricarbonate ion, the slurry then being filtered to remove waste solids delivered to a tailings pond containing system water, and the filtrate being separately treated to precipitate uranium oxide: …
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The flotation has been successfully applied to process the iron ore for the particle size (Ps) from 10 µm up to 150 µm. The presence of the slimes (Ps < 10 µm) is harmful on the reverse flotation of quartz, so they are usually prior …
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The precipitated uranium is removed as thickener tank underflow and filtered. This filtrate and the tank overflow are then filtered, and the resulting barren liquor is recarbon- ated and recycled for use as mill solution in the initial grind- ing step. ... The discharge of very fine and not readily settleable ore particles, or slimes, causes ...
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Learn the basics of what a thickener is and how it works with our beginners guide to thickeners. ... The flocculant addition should be adjusted to suit the solids input and is mostly affected by the processing rate. Simple systems with constant feed can use flocculant pump speed control, more advanced control systems utilize a ratio controller ...
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Uranium processing - Leaching, Extraction, Purification: Roasted uranium ores are leached of their uranium values by both acidic and alkaline aqueous solutions. For the successful operation of all leaching systems, uranium must either be initially present in the more stable hexavalent state or be oxidized to that state in the leaching process. Acid leaching is commonly performed …
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The table below gives thickener flux or rise rates in different units (m3/h/m2). This is from the SME Mineral Processing & Extractive Metallurgy Handbook (Vol 1, 2019). Our notes were in gpm/ft2. Keeping this in mind and using this data, …
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The use of a series of thickeners for washing of the slime fraction of a leached ore is not uncommon in the uranium industry; however, few ore processing mills have used a thickener circuit for washing leached total ore. The common practice is to wash the sand fraction in classifiers and the slime fraction only in thickeners. At the Uravan mill of Union Carbide …
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At Tiwest's Cooljarloo site in Western Australia, the dry mine feeds clay residue (slimes) to an Outotec 20m High Compression Thickener. The feed dilution system incorporates both forced ...
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A Thickener is a sedimentation machine built in RCC or Steel tank which operates according to the principle of gravity settling. Thickener have following advantages: ... Uranium: Yellow U 3 O 8 Cake: Sand & Aggregates: Slimes: Chemical & Fertilizers: Waste Treatment: Industrial Processing: Waste Treatment & recycle: Magnesia: Concentration ...
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5 Typical applications Thickeners and clarifiers Alumina, Bayer process Potash Coal Blast furnace flue dust Base metal concentrates Flotation tailings Iron ore Gold Copper CCD Nickel laterite CCD Molybdenum concentrate Mineral sands slimes Platinum Uranium
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Most thickener designs, suitable to minerals applications, are based on the separation of -65 mesh, 2.7 specific gravity solids containing slimes. These designs are routinely adapted to coarser and/or denser materials.
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Thickener Underflow, Thickener Overflow Uranium Processing Pregnant Feed, Tailings, Cyclone Feed, Pyrolusite Distribution, Underflow Thickener Feed Copper Refining ... Ore Mining Slimes Pump, Concentrator Feed, Tailings/Tailings Booster pumps, …
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US20210025028A1 US15/999,090 US201615999090A US2021025028A1 US 20210025028 A1 US20210025028 A1 US 20210025028A1 US 201615999090 A US201615999090 A US 201615999090A US 2021025028 A1 US2021025028 A1 US 2021025028A1 Authority US United States Prior art keywords hydrocyclone uranium process according ore slurry Prior art date …
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Acid leaching of high lime ores is extremely costly. Ores of this type are sent to "Sub-A" Flotation Machines for removal of a selective lime concentrate. The lime flotation concentrate would pass to a Thickener for dewatering prior to carbonate leaching to recover uranium. Underflow from the thickener would be metered …
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A high proportion of the gold and silver in the ore report to the anode slimes generated in the electrorefining process. The slimes are treated to produce high purity gold and silver. The …
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uranium ore processing operates two plants in singhbhum jaduguda plant– commissioned in 1968jaduguda plant expanded two times ... sand-slime seperation tailings thickener tailings pond decant water pond effl. treatment plant slime u/f o/f sand for backfilling of mine filtrate lime recy. neutral water cake p r e c i p e t a t e d d r u m c a ke
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minerals Article The Characteristics of Iron Ore Slimes and Their Influence on The Flotation Process Neymayer Pereira Lima 1, Klaydison Silva 1, Thiago Souza 2 and Lev Filippov 3,* 1 Av. Dr ...
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Uranium ore-processing flowsheet. conducted in countercurrent thickener circuits. Both the thickener techniques and the flocculents developed for use in uranium mills are now widely used in other hydrometallurgical industries. Flocculents are chemical agents that …
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Uranium-rich slimes (very fine-grained material) are then washed in a thickener circuit, after which the barren slimes are pumped to the TSF. Here, sand and slimes are recombined and …
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The thickener tanks, for separating the uranium-vanadium water-soluble compounds from the sands and slimes are shown in Photograph 6. h final product packaging area, where the U 0s …
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The result showed the possibility of slime enrichment of Bolani iron ore mines and its use in sinter making. An industrial scheme for beneficiation and recovery of enriched grade fines from slime for the Bolani iron ore mines has been proposed. INTRODUCTION The iron ore processing plant of Bolani has throughput capacity of 3.44 million tones/year.
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AltaFlo ultra high-rate thickeners perform well as tailings thickeners, in CCD circuits, as concentrate thickeners, and in leaching circuits. The low CAPEX economics of an AltaFlo also make it a perfect solution for dewatering non-profit streams. The …
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Mining thickeners are integral to efficient mineral processing and sustainable tailings management. By implementing proper design, operation, and maintenance practices, mining professionals can optimize thickener …
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uranium copper line ore slimes Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Lifetime Application number US613185A Inventor Frank A Seeton
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The processing of fine particles inevitably produces slimes. These present a dewatering problem, for which gravity thickening provides a partial or preliminary solution.
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The main characteristics of typical slimes from the Iron Ore Quadrangle in Brazil are the presence of almost 70% of hematite, 25% of quartz, and 5% of kaolinite, as the main silicates gangue minerals.
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The slime (overflow of second desliming stage—10 inch hydrocyclones) feeds the slime thickener (diameter 100 m). The underflow of the slime thickener is sent to the tailings dam. 2.2. Pilot Plant The pilot plant was constructed close to the slimes thickener and part of the stream from the thickener underflow was diverted towards this plant.
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Current iron ore processing generates about 25% of very fine material called iron ore slimes. These slimes are being disposed into tailing ponds owing to their high alumina content (10–15% ...
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The Rössing Uranium countercurrent decantation (CCD) circuit is scheduled to process ore with a high calc index from 2017 to 2021. This material was found to be associated with poor settling ...
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