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mining activities in Sukinda valley, Orissa - A case study Ratnakar Dhakate and V. S. Singh National Geophysical Research Institute, Uppal Road, Hyderabad – 500 007 (A.P.) India Accepted 5 June, 2008 Sukinda Valley, Orissa is known for its chromite ore deposits. The open cast mining for chromium is being carried out since 1950.


REPORT ON ENVIRONMENTAL ISSUES OF CHROMITE MINING IN SUKINDA VALLEY Orissa accounts for about 98% of the total proved chromite (chromium ore) reserves of the country, of which about 97% occur in the Sukinda Valley, over an area covering approximately 200 sq. km., in the Jajpur district. Presently there are 14 chromite mines operating in Sukinda.


How Old The Sukinda Chromite Open Cast Mining in congo. Sukinda valley in Orissa has made it to the top ten of the worldâ s 30 most polluted places Seventy years of intensive opencast chromite mining have resulted in a scarred landscape toxic water and soil ruined agricultural fields degraded forestland and populations that are being slowly poisoned...


A process mineralogical study based on three texturally and mineralogically different chromite-bearing ore types at the Nkomati nickel mine was undertaken, with focus on chromite. Chromite is a by-product of the Ni-Cu-Co-PGE ore at Nkomati Nickel mine. These being the PCMZ_MG (medium-grade Ni-Cu sulphide silicate ore with disseminated chromite), …


Bioleaching of Sukinda chromite overburden was reported previously [1, 3, 18]. Mohapatra et al. made a comparative study of some fungal species in respect of direct leaching of raw and roasted Sukinda chromite overburden and reported that A. niger yielded a maximum recovery of 34 % nickel from roasted ore at 2 % pulp density.


Chromite is the most important chromium ore mineral. It forms a complete solid solution series with many other members of the group, eg. in the Chromite-Hercynite Series, Chromite-Spinel Series, Chromite-Magnetite Series and the Chromite-Magnesiochromite is the iron analogue of Zincochromite, Cochromite, Manganochromite and Magnesiochromite and ...


The present study encompasses the first ever attempt of the usage of cow dung as a reductant in the reduction roasting of an Indian iron ore slime containing 56.2% Fe.


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Classification is a method of separation of fines from coarse particles and also lighter particles from heavier particles. The conventional classifiers, such as, hydrocyclone or mechanical classifiers, decreases the efficiency of the grinding and concentration circuits due to their imperfect separation. In the process of improving the efficiency of classification, a device that …


mineralogical study of sukinda chromite ore immt. v117n1a11 Performance optimization of an industrial ball . Comminution is a critical process in mineral processing which strongly influences the economics of production. In mineral at the Sukinda chromite ore beneficiation (COB) plant contains about 3040% ultrafine particle (45 m). phase of the ...


For Utilising Chrome Ore In Sukinda. Jindal Stainless (JSL) said that the company has signed a Memorandum of Understanding (MoU) with Tata Steel Mining (TSML) for jointly pull out the chrome ore locked up in the boundary between their mines located in Sukinda of Jajpur district, Odisha. ... This would help with the conservation of chromite ore ...


Mineralogical study of sukinda chromite ore immt. impact, Sukinda valley. 1. Introduction Mineral reserves are the industrial and economic backbone for a country. The state of Odisha is endowed with vast mineral deposits like coal, chromite, iron ore, manganese ore, bauxite is the second largest producer of chromites in the world and 98 Details.


42. Development of commercial process flowsheet for beneficiation of chromite ore. (M/s. Indian Metals & Ferro Alloys Ltd., (IMFA), Bhubaneswar). 43. Characterization studies of iron ore for setting up 9.12 Mt/yr crushing and screening plant. (M/s. OMC Ltd, Bhubaneswar). 44. Pelletisation and sintering study on high sulphur magnetite iron ore ...


Threshold value of Chromite Ore. - ibm.gov.in. the lower limit of sub grade ore in a mineral deposit. The threshold value ... Study 1: Pilot plant scale study on a ROM chromite ore sample from Sukinda mine, Jajpur District, Odisha for M/s Tata Iron & …


mineralogical study of sukinda chromite ore immt Quantitative mineralogical characterization of chrome chromite (2487%) and large amounts of hematite (858%), goethite (3591%), gibbsit e (1740%), and quartz (69 0%) Chromite liberation data in …


mineralogical study of sukinda chromite ore immt Chromite ore beneficiation plants in Sukinda region treat selected rich ores (A38% Cr203) with a view to producing concentrate of about 50% Cr203 as directly marketable grade for export and domestic industries This has resulted rejection and piling of huge quantities of low and subgrade ore .


The ore of the study area is low grade contains 21.5% Cr 2 O 3 with the liberation size of chromite mineral in the range (0.30-0.05) mm. The main …


of mined chromite ore is converted into different grades of In this study, the mineralogical and chemical cal characteristics of chromite ores of Sukinda have been. Beneficiation of Low Grade Chromite Ores from Sukinda · PDF . Chromite ore beneficiation plants in Sukinda region treat selected rich ores (A38% Cr203) with a view to producing ...


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Abstract. Mineralogical characterization and liberation of valuable minerals are primary concerns in mineral processing industries. The present investigation focuses on quantitative mineralogy, elemental deportment, and locking-liberation characteristics of the beneficiation of tailings from a chrome ore beneficiation plant in the Sukinda region, Odisha; …


Majority (-98%) of chromite occurrences in the country are confined to famous Sukinda Nuasahi chromite belt, district Jajpur and Keonjhar respectively of Orissa. In this belt a number of lessees are working for winning of chromite ore for their captive charge-chrome/ ferro …


The mineralogical study was carried out by optical microscopy using Leitz Ortholux. Results. As breccia zone is the zone of interest, detailed mineralogical study of the breccia zone along with chromite, base metal sulfide and PGE mineralization was carried out. The results are given below. Discussion


The nickeliferrous chromite ore overburden of Sukinda, Orissa, contains about 0.55% Ni, and forms an important resource for nickel in India. This deposit has hitherto evaded exploitation because of its lean grade and complex mineralogy. The techno-economics of the metallurgical extraction process developed for recovering nickel from this laterite requires a minimum of 1% …


mineralogical study of sukinda chromite ore immt. Beneficiation of Low Grade Chromite Ores from Sukinda · PDF . Chromite ore beneficiation plants in Sukinda region treat selected rich ores (A38% Cr203) with a view to producing concentrate of about 50% Cr203 as directly marketable grade for export and domestic industries This has resulted rejection and piling of …


mineralogical study of sukinda chromite ore immt - Know More Beneficiation Of Chromite In Sukinda Of the chromite ore beneficiation plants in Sukinda region treat selected rich ores with rejection of huge quantities of low and subgrade ore 1038 Cr203 Beneficiation is mostly limited to crushing, grinding, desliming and hydrosizing to produce a ...


Alluvium – Kankar, Brick and Potter's Caly, Sand, Gold, Iron Ore, Manganese Ore. Odisha has a lion's share of the Country's mineral reserves. The chromite, nickel, bauxite, iron ore and coal resources of the state respectively stand at a staggering 83, 92, 55, 38 and 26 percent of India's total reserves.


Chromite ore was fed into the molten slag, and was followed by reduction of iron and chromium oxides.Due to the fact that the chromite ore was fed in granular form, as expected, a greater contact area was created which influenced the dissolution reduction reaction between the ore and the slag.The slag composition played a significant role.


Chromite ore is having wide applications in different sectors, i.e. ferrochrome production, refractories, stainless steel, catalysts, etc. Approximately 98% of chromo ore reserve is present at Sukinda zone, Jajpur district of Odisha state, India [].Due to rapid industrialization, high-grade chrome ores are getting depleted day by day because of which it is required to …


at the Sukinda chromite ore beneficiation (COB) plant contains about 30–40% ultrafine particle (<45 m). The generation of ultrafines adversely affects the efficiency (higher specific power consumption, losses of ultrafine chromite in the tailing, etc.) of the benefi-ciation circuit. The ROM ore properties (size


Sukinda sector are open cast. The ore to overburden ratio ranges from 1t: 3m3 to 1t:20m3. Production of chromite in India during 2001-2002 is estimated to be 19.67 lakh tonnes out of which Orissa accounted for 19.47 lakh tonnes (99%) of total production. Uses : Chromite is the only Commercial ore mineral of chromium. Traditionally, chromium


how old the sukinda chromite open cast mining. mining chromium from chromite in india. Sukinda has an abundance of chromite, around 97% of India's total deposits The valley is abundant in the deposits of chromite and has the largest open cast chromite ore mines in the world Around 12 mines operate in the area without proper environmental controls, and …


Sukinda, India. Potentially Affected People: 2,600,000 Type of Pollutants: Hexavalent chromium and other metals Source of Pollution: Chromite mines and processing The Problem. Sukinda Valley, in the State of Orissa, contains 97% of India's chromite ore deposits and one of the largest open cast chromite ore mines in the world.


A process mineralogical study based on three texturally and mineralogically different chromite-bearing ore types at the Nkomati nickel mine was undertaken, with focus on chromite. Chromite is a by-product of the Ni-Cu-Co-PGE ore at Nkomati Nickel mine. These being the PCMZ_MG (medium-grade Ni-Cu sulphide silicate ore with disseminated chromite), PCMZ_HG (high …


Sukinda valley in the state of Odisha is one of the major chromite reservoirs of the world and is the only known deposit of nickel in India (Murthy et al., 2010). Chromite mining at Sukinda valley annually generates around 6–7 million tonnes of lateritic chromite overburden (COB) containing nickel (0.5–1.0%) ( Swain et al., 2007 ).


Dr.Danda Srinivas Rao. Chief Scientist, CSIR-IMMT, Bhubaneswar. Prof. & Dean Physical Sciences AcSIR, New Delhi. Verified email at immt.res.in. Applied Mineralogy Ore Geology Ore Geochemistry Mineral Beneficiation. Articles Cited by Public access Co-authors.