Economic and Socio-Environmental Benefits of Dry Beneficiation …

The magnetite concentrator produces 1.2 Mt of magnetite concentrate per annum. The 3 MW M10000 installed IsaMill grinds the magnetite concentrate (with particle size ranging between 150 to 200 µm) from the rougher magnetic separation stage to generate 40 µm to 45 µm product before final cleaner magnetic separation to produce the final ...

Performance evaluation of processing clay-containing ore in …

Artificially mixed slurries of clay, pure magnetite and quartz (1 kg) were fed into the Knelson concentrator at a solid rate of 200 g/min to evaluate the effect of clays (bentonite or kaolin) on the separation of magnetite. The feed slurry contained 10% magnetite, different amount of clays (0, 5%, 10% or 15%) and quartz.

Advances in Magnetite Recovery

"In fact, the increased recovery of magnetite in the rougher stage at an iron ore concentrator prompted the replacement of more than 20 48-in. diameter rougher units." ... "The typical recovery of magnetite in a heavy …

Fine grinding circuit process improvement at the Karara mine concentrator

The Karara Mine concentrator commenced operation in November 2012 to produce high-grade magnetite concentrate. The circuit consists of three stages of comminution plus magnetic separation at each stage for early gangue rejection. High-Pressure Grinding Rolls (HPGRs) are used for fine crushing, followed by ball mills and TowerMills in secondary and fine grinding …

DRY MAGNETIC SEPARATION OF MAGNETITE ORES

The relevance of the paper is that dry magnetic separation (DMS) is the main beneficiation method of magnetite ores. The lack of efficient industrial-grade machines and apparatus for separating fine-grained magnetite ores means that DMS is used mainly as a pre-concentration operation for fairly large classes.

Southdown Magnetite Project, Western Australia, Australia

The Southdown magnetite project was estimated to hold approximately 1.2 billion tonnes (bt) of measured, indicated and inferred mineral resources grading at 33.7% Davis Tube Recovery (DTR), as of February 2014. ... The infrastructure facilities at the project will include a mine, a concentrator plant with dry grinding and wet separation system ...

Proposed Open Pit Magnetite Mine and Concentrator …

Proposed Open Pit Magnetite Mine and Concentrator Plant, Mokopane, Limpopo Province VMC3049 Digby Wells Environmental ii Digby Wells and Associates (South Africa) (Pty) Ltd Contact person: Brett Coutts Turnberry Office Park 48 Grosvenor Road Bryanston 2191 Tel: 011 789 9495 Fax: 011 789 9498 E-mail: brett.coutts@digbywells

Modeling and Optimisation of Spiral Concentrator for …

Experiments were carried out using a spiral concentrator test rig containing feed conditioner, centrifugal pump and a spiral concentrator with feed to spiral and recirculation. Time samples of concentrate and tails were collected, weighed, dried analysed. Regression equations were developed for Concentrate yield, grade and percent recovery of iron values using Box …

Particle Classification in the Enhanced Gravity Field Using the …

The particle classification in the enhanced gravity field generated by the Knelson concentrator was studied in this paper. Three main test parameters, namely rotation speed, backwash water pressure, and solid mass percentage, that affected the classification performance of the Knelson concentrator for the classification tests of quartz and synthetic ore, which …

Adapting the Ernest Henry Mining Concentrator to Process …

Ernest Henry Mining (EHM) is a copper, gold and magnetite mining and processing operation located 38km north east of Cloncurry. The EHM ore body has an average grade of 0.9% copper (chalcopyrite), 0.5g/t gold and 22% magnetite.Open pit mining commenced in March 1998, but EHM transitioned to underground mining in December 2012, extending the life of operations …

Concentrator

Since 2019 Concentrator advanced from Wemco flotation cells to tank flotation cells. The final milled product at 80% passing 0.15 mm is fed to the Tankcells Flotation Plant (TFP) with capacity of 1 745 t/hr, which is a counter-current …

Towermill Performances in Magnetite Concentrator and It's …

Four units of TowerMills were installed in a magnetite concentrator in Western Australia in tertiary grinding duty. Recently, Nippon Eirich has conducted process performance evaluation on the TowerMill circuit. The outcome of the exercise had indicated that the circuit is consuming 3.4 kWh/t to reduce from 55 µm to 35 µm with a narrow product ...

[PDF] A preliminary investigation of dry gravity separation …

A synthetic mixture of magnetite and quartz with a grade of 1% magnetite was used to mimic a low-density ratio ore. Bowl speed (G), air fluidizing pressure (psi) and solids feed rate (g/min) were chosen as the operating variables. ... Laboratory Knelson Concentrator has shown its potential for processing high density ores on a dry basis. This ...

KM C364e-202

The Southern Middleback Ranges (SMR) magnetite concentrator was commissioned in 2007 to produce feed for the OneSteel blast furnace in Whyalla, South Australia. The concentrator went through an optimisation project in December 2013, which included the installation of a MIOOOO and Stack SizerTM screens to give it the

A Novel Pneumatic Planar Magnetic Separator for Magnetite …

In our previous studies, we investigated the performance of a novel pneumatic planar magnetic separator (PMS) for the dry beneficiation of a selected magnetite ore. In the present study, we have extended the studies on the PMS with the focus on investigating how various PMS processing flowsheet configurations influence its performance. The outcomes …

Performance Enhancing Blends

The magnetite concentrator beneficiates magnetite ore from the Iron Magnet Deposit and produces concentrate, which is pelletised, then fed to the OneSteel Whyalla blast furnace. Concentrator feed variability severely detracts from the concentrator's performance, affecting both concentrate yield and grade, which impacts on all downstream ...

A preliminary investigation of dry gravity separation with …

Knelson Concentrator has shown its potential for processing high density ores on a dry basis. This study investigated the feasibility and the optimum operating conditions when processing a dry low SG feed with a modified Knelson Concentrator. A synthetic mixture of magnetite and quartz with a …

Assessing the performance of a novel pneumatic magnetic …

The benefits of PMS as a unit operation in magnetite concentrators were discussed. Abstract A novel low-intensity pneumatic planar magnetic separator designed to recover and …

Knelson continuous variable discharge concentrator: Analysis …

The Knelson Continuous Variable Discharge Concentrator (CVD), one of the dominant continuous centrifugal concentrators in mineral processing industry [12,20,21], has been commercially applied in ...

Asia Iron Australia > Projects > Extension Hill …

The Extension Hill Magnetite Project is located in the Mount Gibson Ranges, adjacent to the Great Northern Highway, 280km south east of Geraldton, 375 km north of Perth and is Asia Iron Australia's most advanced project. ... Ore …

An investigation on laboratory Knelson Concentrator …

Several materials with different densities including magnetite, zinc, ferromolybdenum, lead, and tungsten were used as valuable components to simulate minerals with the same densities in two-component synthetic feeds with various size fractions. ... All the tests were conducted using a laboratory Knelson Concentrator of Manual Discharge type ...

Karara project ships first magnetite concentrate

The first shipment of magnetite concentrate from the Karara iron ore project in Western Australia has been dispatched from the Karara Export Terminal in Geraldton for China – the first-ever significant shipment of magnetite from Western Australia. ... Commissioning of the Karara concentrator is continuing to progress well, with various ...

Iron Ore 2015 Conference

In 2014, Arrium completed an optimisation program on its magnetite concentrator, enabling a reduction in the overall cost base of producing concentrate through an increased ability to treat a wider range of ore types, previously considered waste. The development was the culmination of four years of work, conducted in house by Arrium's ...

Proposed Open Pit Magnetite Mine and Concentrator …

pit magnetite mine and concentrator plant, mokopane, limpopo province for listed activities associated with mining right and/or bulk sampling activities including trenching in cases of alluvial diamond prospecting submitted for environmental authorizations in terms of the national environmental management act, 1998 and the national environmental

Overview

The iron ore deposits in the Labrador City area occur as specular hematite and magnetite, generally in the ratio of 65:35. IOC has mineral reserves and resources of 1.1 billion tonnes and 1.7 billion tonnes, respectively, with an average grade of approximately 38% iron. ... Currently the mining operations have a nominal capacity to deliver up ...

Economic and Socio-Environmental Benefits of …

In our previous studies, we demonstrated the performance of novel superfine crusher and pneumatic planar magnetic separator as energy-efficient technologies for dry processing of magnetite ores.

Separation of magnetite concentrate before the last …

PDF | For magnetite and titanium magnetite ores, it is possible to use technology with the separation of concentrate before the last grinding stage. ... The spiral concentrator has been ...

Knelson Continuous Variable Discharge Concentrator: …

Synthetic mixtures of quartz and magnetite were used in the tests at UBC. Mixtures of quartz (P 80 = 425 µm) and two sizes of magnetite, coarse (P 80 = 425 µm) and fine (P 80 = 125 µm) were prepared with grades of one per cent and four per cent magnetite by weight. Test products were analysed for magnetite content using a Davis Tube.

Magnetite Concentration Methods

Magnetite (composition Fe3O4) has a specific gravity ranging from 5.0 to 5.1, and is sufficiently heavy to permit of its concentration from gangue by specific-gravity methods, which …

Proposed Open Pit Magnetite Mine and Concentrator …

Proposed Open Pit Magnetite Mine and Concentrator Plant, Mokopane, Limpopo Province VMC3049 Digby Wells Environmental 3 protected ecosystems, in one of four categories: Critically Endangered (CR), Endangered (EN), Vulnerable (VU) or protected. The proposed Open Pit Magnetite Project does not fall