What can be extracted from iron ore slime

Recovery of iron minerals from Indian iron ore slimes using …

 · The work also contained the mechanistic study of magnetite coating in the removal of iron from an Indian bauxite and recovery of iron values from the Joda iron ore slimes of India . Other than typical mineral engineering applications, this technique was also applied to remove turbidity from wastewater by adding magnetite in conjunction with some polyelectrolyte [22], …

Utilization of Iron Ore Slimes: A Future Prospective

The high-grade iron ore fines contain 64% Fe, 2.25% LOI, and Blaine number 2975 cm²/g, whereas iron ore slimes contain 52.45% Fe, 5.60% LOI, and Blaine number 7046 cm²/g. Pellets were produced ...

iron ore slime process

Iron ore slime (-150 μm) was obtained after scrubbing and wet screening of a low grade iron ore assayed 42.7% Fe with 12.5% Al 2 O 3 and 13.68% SiO 2. Size analysis revealed that 90% of the iron ore slime was having size less than 72 μm. The isoelectric point of

CHARACTERISATION OF IRON ORE SLIME

6.1.4 CHARACTERISATION OF IRON ORE SLIME During washing and sizing of the ore, slimes with less than 0.21 mm size are generated and discarded into the tailing pond. It is estimated that around 10 million tonnes of slimes are being generated every year during the processing of hematite ore and lost as tailings containing around 48-62% of Fe.

Recovery of Iron Values from Waste Iron Ore Slime

Iron ore slime (-150 μm) was obtained after scrubbing and wet screening of a low grade iron ore assayed 42.7% Fe with 12.5% Al 2 O 3 and 13.68% SiO 2. Size analysis revealed that 90% of the iron ore slime was having size less than 72 μm. The isoelectric ...

Intoduction to Iron Ore Slime

 · Iron Ore Slime 10.3390/min11070699 This work describes the concentration of iron ore slimes on a pilot scale by using a 500-mm diameter flotation column and a novel collector, which renders the use of a depressant unnecessary.

treatment of iron ore slime for value addition sciencedirect

Research Highlights Iron ore slime which is a waste material contains 56% of iron. Two different chemical treatment methods and electrowinning method were separately studied to upgrade iron content up to 60% or above. Acid extraction and alkali extraction can

Recovery of iron minerals from Indian iron ore slimes using …

Recovery of iron values from the Barsua iron ore slimes containing 56% Fe, 4.8% SiO 2, 7.2% Al 2 O 3 and 7.0% LOI by the addition of synthetic colloidal magnetite and oleate colloidal coating followed by high gradient magnetic separation technique was

iron ore slime dewatering

 · Thickening and Dewatering of Clay - Thickening, Filtering, CCD .4 Apr 2017 . What shall we do for dewatering a placer iron ore tail, which contains lots of clay? We design . Split the stream into a fi iron ore slime dewatering dewatering of fine particle clay waste with ...

hematite recovery from iron ore waste

Separation of hematite from banded hematite jasper (BHJ ... Feb 18, 2015· The separation of iron oxide from banded hematite jasper (BHJ) assaying 47.8% Fe, 25.6% SiO 2 and 2.30%Al 2 O 3 using selective magnetic coating was studied. Characterization studies ...

Treatment of iron ore slime for value addition

What are iron Ore slimes? - Quora

Iron Ore Mining | Techniques | Metal Extraction

MINING AND PROCESSING: Iron ore mining can be broadly divided into two categories namely 1) manual mining which is employed in small mines and 2) mechanized mining is suitable for large iron ore mines. Manual mining method is normally limited to float ores and small mines. Mining of reef ore is also being done manually on a small scale.

Extraction of Iron: Meaning, Purification, & Extraction Methods

 · The extraction of iron from its ore is the third and the penultimate process in metallurgy, which is the process of separating metals from their ores. The common ores of iron are iron oxides. These oxides can be reduced to iron by heating them with carbon in the form of coke. Heating coal in the absence of air produces coke.

Recovery of Iron Values from Iron Ore Slimes using Reagents

Mining wastes include waste generated during the extraction, beneficiation or processing of minerals like iron ore fines, slimes and tailings. Approximately 10–20% of the raw material is discarded as slimes in to slime ponds/tailing dams. Recovery of iron values from slimes result in economic benefit by utilization of waste as a resource and minimizes the threat to the …

Minerals | Free Full-Text | The Characteristics of Iron Ore Slimes …

 · 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 removed by hydrocyclones. The main effects of the presence of slimes on the flotation are related to the …

Upgradation of Iron Ore Fines and Slime by Selective Flocculation …

 · Washing of iron ore fines and slime (10% and 25% w/v, slurry concentrations) with two types of surface-active agents (sodium humate (synthesized) and AD 200 (commercial)) at varying concentrations at pH 8 was conducted for ascertaining the efficacy of dispersants in beneficiating the low-grade iron ores. The beneficiation process follows the …

How is Iron Extracted?

 · Mining. Iron naturally occurs as its oxides inside the Earth and should be extracted through mining. Iron mining can be done manually or mechanised but in the case of larger mines, it is almost always mechanised. The prospective rock with the ore is dug up and broken apart with picks and drilled through to reach the ore within.

What are iron Ore slimes?

Answer: Iron ore slime is which has the particle size of below 150 m is being discarded as waste during the mining and processing stages iron ore and it will be stored at the tailing dam. It is estimated that 18% - 25% of tailing will be generated during the

What metal ores can be extracted using carbon?

 · For example, iron can be extracted from its ore, haematite, (iron oxide) by heating with carbon at high temperatures. An industrial scale of extraction of …

Treatment of iron ore slime for value addition | Semantic Scholar

Abstract Typical Indian iron ore slime in a steel plant contains 56% iron, 6.78% Al2O3 and 5.8% SiO2. Value addition to this reject / waste material has been investigated using chemical treatment and electrowinning. Two alternate chemical treatment routes have been explored: (i) acid extraction of iron followed by alkali treatment and (ii) alkali extraction of aluminum oxide …

Extraction of Metals from Ores – Different Processes Involved

The basic extraction of metals from ores has the following steps. Grinding and Crushing. The bigger chunks of the ore extracted are crushed and ground in ball mills and crushers. It helps to increase the surface area of the chunks for better chemical actions later. In technical terms, it is called pulverisation.

iron ore slime use

The iron ore slimes (d8050 μm) generated at Noamundi iron ore washing plant (TISCO), assaying 57% Fe, 4% SiO2 and 8.3% Al2O3, have been subjected to hydrocyclone studies. subrata roy iron ore slime - communales2018

Extracting iron

Iron is extracted from iron ore in a huge container called a blast furnace. Iron ores such as haematite contain iron(III) oxide, Fe 2 O 3 . The oxygen must be removed from the iron(III) oxide in ...

Fine Particle Processing Of Iron Ore Slimes From Wash Plant

Fine Particle Processing Of Iron Ore Slimes From Wash Plant S J G Krishana 1, M R Patil 1, C Rudrappa 1, B P Ravi 1, P S Kumar 1, M V Rudramuniyappa 1 & S Umesh2 1Mineral Processing Dept, VSKU PG Centre, Nandihallli-Sandur-583119 2Minerals and Solutions [P] Ltd.-Agency of LONGI Magnetics Inc, Bangalore560010

Characteristics of Iron Ore Slime from Kiriburu, India

Key words: Iron ore slime; characterization; mineralogy; Abstract The mineralogical, size and chemical characteristics of slime vary from discharge point to the distal part of the Tailing pond of Kiriburu iron ore mines. They can be grouped as three end

How is Iron Extracted from Iron Ore | Actforlibraries

C + O2 → CO2. The heat produced by this reaction is the main source of heat in the blast furnace that is used for iron production. At the bottom of the furnace, the temperature is very high, which causes more of the coke to react with carbon dioxide, producing carbon monoxide. C + CO2 → 2CO. The carbon monoxide then becomes the "reducing ...

iron ore slime process

Sep 14, 2017· Similarly the process was applied to iron ore slime and the findings showed that it was possible to upgrade the iron ore tailings more than 63% from the feed grade of 50.98(%) by selective flocculation process.

Iron ore | BHP

What is iron ore? Iron ores are rocks and minerals from which metallic iron can be extracted. There are four main types of iron ore deposit: massive hematite, which is the most commonly mined, magnetite, titanomagnetite, and pisolitic ironstone. These ores vary in colour from dark grey, bright yellow, or deep purple to rusty red.

Treatment of iron ore slime for value addition

Typical Indian iron ore slime in a steel plant contains 56% iron, 6.78% Al 2 O 3 and 5.8% SiO 2 . Value addition to this reject / waste material has been investigated using chemical treatment and electrowinning. Two alternate chemical treatment routes have been explored: (i) acid extraction of iron followed by alkali treatment and (ii) …

Recovery of iron from iron ore slimes by selective flocculation

 · The selective flocculation tests showed that the Fe grade can be enhanced from 58.24% to 64.60% Fe at a recovery of 66.33% using polyacrylamide as the flocculant. A Fe grade of 63.20% at a ...

Treatment of iron ore slime for value addition

 · Electrowinning of iron from oxalic acid solution using steel cathode and a lead anode, surrounded by a synthetic cloth diaphragm, produces high purity iron deposits on the cathode surface. Chemically treated iron ore slime is suitable for iron production using blast furnace whereas the elemental iron produced by electrowinning can be used directly for steelmaking.

(PDF) CHARACTERIZATION AND PROCESSING OF LOW-GRADE IRON ORE SLIME …

 · Separation of Barsua, Bolani, and Kiriburu iron ore slimes was studied (Das et al. 1995) using classification by hydrocyclone followed by LOW-GRADE IRON ORE Their results show that it is possible to obtain a concentrate assaying 60–65% Fe with 60–80% recovery.

Utilization of iron ore slime and bottom ash: An overview

 · Fig. 3. SEM micrograph of (a) iron ore slime and (b) bottom ash. The estimated iron losses through Iron Ore Slime (∼50–60%Fe) is approximately 10–25% of total iron ore mined, which is ∼18 million tons (MT) per annum in India [9]. All non-hazardous industrial solid waste generation is estimated ∼200 MT in India.

Treatment of iron ore slime for value addition

 · A typical Indian iron ore slimes containing 57.2% Fe, 5.81% SiO 2 and 7.05% Al 2 O 3 by wet magnetic separation and selective magnetic coating is investigated and the results revealed that the iron concentrate contains 62.32% Fe with 66.5% iron recovery at medium magnetic intensity of 7.8 kG ( Das et al., 2008 ).

Is the beneficiation of iron ore slime/ tailings/rejects necessary?

Studies were carried out on the removal of alumina from iron ore slime containing (%) Fe2O3 75.7, Al2O3 9. ... I have extracted Iron Ore tailing via Acid Digestion method at 80 C …

UTILIZATION OF IRON ORE SLIME IN INDIA

JOURNAL OF INTERNATIONAL ACADEMIC RESEARCH FOR MULTIDISCIPLINARY Impact Factor 1.625, ISSN: 2320-5083, Volume 2, Issue 12, January 2015 485 UTILIZATION OF IRON ORE SLIME IN INDIA- AN REVIEW DR DIPTA