thickener for mine testing high recovery

    • SOLUBLE METAL RECOVERY IMPROVEMENT USING …

      2009-8-26 · a High Rate Thickener. As one can see in Figure 3, the continuous simulation achieved an underflow suspended solids concentration of 59 wt% when the mud residence time is between 4 and 6 hours. This residence time is normally associated with High Density thickeners (High Rate thickeners have residence times less than this). Ruashi Post Leach ...

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    • Most common problems in thickener operations (part 1)

      These specifications commonly have high variability and are required to adjust to the programmed processing tonnages during the life of the mining project. Thickener area. The thickener area depends on the mineral sedimentation rate (m2/t/d) or the specific feed rate (t/h/m2) which are determined by laboratory or pilot testing.

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    • High-Density Thickeners | McLanahan

      High-Density Thickeners can be considered an intermediate case between High-Rate Thickeners and Paste Thickeners. They are commonly characterized by: Having a higher sidewall tank (to provide enhanced compression effects) A steeper floor slope to …

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    • Thickener sizing and the importance ...

      2010-3-23 · Thickener sizing methods . Depending on the stage of the project, and whether or not samples of indicative feed material are available, a number of different methods can be used to determine thickener sizing. In general, these can be classified as: rule of thumb sizing, cylinder settling tests, and, lastly, dynamic thickener testwork.

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    • MIXERS AND THICKENERS FOR THE MINING INDUSTRY ...

      2008-2-12 · Lightnin Africa is a division of international group, SPX Process Equipment and has supplied well over sixty large mixers into the African mining industry over the past four years, with some 25 units being sold to the Ashanti group of mines. According to applications engineer, Gerrit Kotze, successful installations for gold mining applications have been in Ghana, Guinea, Botswana, Ethiopia ...

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    • High Capacity Thickener

      2019-1-10 · Feed to the Hi-Capacity Thickener consisted of hematite iron ore concentrate from flotation cells with a size distribution of 92 – 95% minus 325 mesh. The unit was operated by plant personnel for a five month period, demonstrating that the control strategy could function properly and unattended. Testing …

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    • Pogo thickener testing

      2007-9-21 · The test-work consisted of initial bench scale testing in Outotec''s 94 mm bench scale high-rate thickener, with subsequent testing in Outotec''s 190 mm mini-pilot paste thickener.

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    • DELKOR ThicKEnERs | cLaRifiERs

      2021-3-22 · HIGH DENSITY HIGH THROUGHPUT CLARITY We have provided paste thickeners up to 40 m in diameter with drives in excess of 10 mNm of torque. For applications where high water recovery is required but without the process and pumping issues associated with paste. DELKOR have operational units from 1 m to 99 m in diameter.

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    • ThICKENERS

      2017-4-3 · paste & high compaction thickener DELKOR takes its knowledge and experience of over 30 years providing thickeners for the mining industry and applies it to the extreme mechanical and process requirements needed when dealing with high yield stress underflows.

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    • Amstar High-Rate Thickener – Amstar Corporation

      Amstar High-rate Thickeners Overview. Amstar high-rate thickeners are used in many types of process circuits to separate liquids and solids at very high rates. They are highly effective in coal refuse thickening, gold recovery, CCD circuits, copper leaching, molybdenum processing and other mining and chemical flowsheets.

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    • Mining Thickener Optimisation | Maximing Mining …

      2021-7-13 · A sample was obtained from the tailing thickener feed-well to conduct the test and it was found that the sample had a very high density, rating way above design with a high solids concentration. A settling test was conducted on this sample, and it was …

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    • CCD thickeners to maximize leached metal recovery

      The ability to create a high thickener underflow density can allow for less stages in the circuit, reducing costs. At FL, we have developed game-changing technology that creates a high thickener underflow density, protects thickeners as an asset and maximises soluble metal recovery. The following technology gets your team these notable ...

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    • (PDF) THICKENER DESIGN, CONTROL AND DEVELOPMENT

      Thickener design configuration s usually consider the high rate or paste thickener options, with a tradeoff between capital cost and process performance. Design s that assume a lower settling flux ...

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    • Beginners guide to thickeners

      2017-6-16 · Beginners guide to thickeners. Thickening is a process where a slurry or solid-liquid mixture is separated to a dense slurry containing most of the solids and an overflow of essentially clear water (or liquor in leaching processes). The driving force for the separation is gravitational, where the differences in phase densities drive the ...

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    • Effect of settling test procedure on sizing thickeners ...

      Flocculation studies were performed at different solid concentrations, pH values, and polymer dosages. The results indicated an efficient settling rate of 178.15 mm/min at 8% solid (w/w) at a ...

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    • SEPARATION RECOVERY OF HIGHLY CLARIFIED LIQUID

      • Maximized soluble recovery thanks to inter-stage mixing • High levels of closed-circuit dilution counteract the negative effects of surging underflow pumps • Bulk closed-circuit dilution technology (35% to 5% solids) using thickener overflow taken from the overflow weirs • Accurate (to within 1%) and adjustable feed dilution

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    • Thickener performance variability: underflow solids ...

      process plant of Mine 1 without thickener. Figure 2 Mine 1 – Variability of slurry dry mass and solids % out of the process plant Comparing the S.D. and C.V. values in Table 1 reveals that the range of fluctuations for the solids dry mass is significantly wider than the variation in slurry solids concentration.

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    • WesTech

      WesTech HiFlo™ high-rate thickeners are used in many types of process circuits to separate liquids and solids at very high rates. They are highly effective in coal refuse thickening, gold recovery, CCD circuits, copper leaching, molybdenum processing and other mining and chemical flowsheets.

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    • ANDRITZ thickening and clarification systems

      ANDRITZ thickening and clarification solutions are designed to achieve the highest production rates without compromising efficiency. For all counter-current decantation (CCD) plants: The new and improved ANDRITZ inter-stage mixing and dilution system for CCD circuits helps to reduce the footprint and consequently cut CAPEX while maintaining low operating costs.

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    • Soluble metal recovery improvement using high density ...

      2009-10-15 · the thickener underflow leads to a higher recovery of soluble metal. This paper reviews the MULLIGAN, M.C. and BRADFORD, L. Soluble metal recovery improvement using high density thickeners in a CCD circuit: Ruashi II as case study. Hydrometallurgy Conference 2009,The Southern African Institute of Mining and Metallurgy, 2009.

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    • Paste thickener benefits for soda ash: liquor recovery ...

      Paste thickener benefits for soda ash: liquor recovery, mine backfill and surface stack J Johnson WesTech Engineering Inc., USA L Webb WesTech Engineering Inc., USA Abstract The benefit of paste and thickened tailings (P&TT) was used for decades in the trona industry with a high-density type thickener installed as early as 1994.

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    • Thickeners & Clarifiers | TENOVA

      Our thickener range includes high-rate thickeners, high-density thickeners, paste thickeners and conventional thickeners and offers designs up to 100m in diameter, catering for a variety of applications in various industries. Our clarifier range includes …

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    • HiFlo™ High-Rate Thickener

      The high-rate thickeners are used in many types of process circuits to separate liquids and solids at very high rates. They are highly effective in coal refuse thickening, gold recovery, CCD circuits, copper leaching, molybdenum processing and other mining and chemical flowsheets. Separation is effected rapidly because of the system hydraulics ...

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    • Commissioning and Testing of Thickener Feed De-Aeration ...

      2008-1-1 · The latest test results indicate a 50 % reduction (0.070 to 0.035 % solids) in nickel losses to the concentrate thickener overflow resulting in an additional $350,000 in annual revenues.This paper will present an overview of installing the de-aeration cyclones within a limited space, as well as the preliminary commissioning and testing challenges.

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    • thickeners & clarifiers

      2012-2-13 · tHiCkener design MIP Thickeners and Clarifiers are designed to operate continuously for 24 hours per day. Process selections are based on test work coupled with our vast experience in the field of thickening. It is our belief that a thickener should not be designed on the limit since metallurgical operations are dynamic.

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    • Thickeners

      2021-9-16 · The uses of thickeners in a beneficiation process are five fold, they are. Readily available fresh water for pre-thickener and post-thickening operations. Maximum recovery of ultra-fine solids, so they can be filter pressed and used for other applications. Prevents the problem of sludge run-off. Environmental foot-print is drastically reduced.

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    • washing thickener in leaching process if your

      Types and Common Problems of Gold Extraction Equipment. The main gold recovery equipment used in the cyanide gold processing plant are as follows the leaching agitation tank, the washing thickener, the high efficiency low consumption rapid desorption electrowinning system, the zinc powder replacing device, and etc the leaching agitation tank is applied to the conventional cyanide leaching process

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    • How to Size a Thickener

      2016-3-8 · Place a measured quantity of pulp at a known density in a beaker or glass cylinder. Fix a narrow strip of paper on one side of the container. Mix pulp thoroughly. Draw a line on the paper at the top of the pulp and mark "0" minutes. For five minutes, …

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