- Commercial chromite deposits are found mainly in two forms:
stratiform
seams(body/layer) in basin-like intrusions, often multiple seams through
repeated igneous injections, and the more irregular podiform or
lenticular
deposits.
- During mining operations to raise marketable ore (+38% Cr2O3) to the
tune of 4 million tonnes and more p.a., sufficient quantities of
sub-grade ores (10-35% Cr2O3) are also being excavated from these mines
- The processing of
chromite ore is associated with the generation of large quantities of
solid wastes containing chromium, which have been disposed of as
landfill for many years. The mobilization and operational speciation of
chromium contained in soils contaminated with metal salts are important
in terms of the environment. Several methods have been employed for the
extraction and recovery of solid wastes.
- Application of
selective flocculation using starch to separate chromite from serpentine
has been investigated. It was determined that starch has a specific
affinity towards chromite which can be exploited in selective
flocculation. However, it was found that this could only be achieved
when the amount of serpentine in the chromite-serpentine mixture is
below 30% by weight and in the presence of a dispersant such as sodium
silicate or ultrasonic treatment of the pulp.
- Chromite mining in
India started around 1903 there was no ferro-chrome production in the
country till 1968. Hence most of the chromite ore was exported. India
exported about 3.84 million tonnes between 1903 to 1980. The current
production rate of chromite ore in the country is between 0.7 to 0.9
million tonnes per annum. In 1986, India attained a production of 90,000
tonnes of FeCr/charge chrome. Prior to implementation of the OMCAL, and
FACOR units, the production of FeCr was only about 20,000 TPA. The
situation has changed dramatically due to the commencement of production
in the export oriented units.
- Ferro Chrome demand
is directly related to the production of Stainless Steel, since more
than80% of the Ferro chrome is consumed in Stainless Steel production
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General
Information
-
Hexavalent Chromium
-
Monograph - Chromite
Properties
-
Air moisture sensing properties of
ZnCr2O4{K2CrO4 composites
-
Mechanical properties of Lanthanum
Chromite
-
Physical properties of Chromites
-
Chromate-reducing properties of soluble flavoproteins
-
Properties of chromite sintering
products
Manufacturing
Technology
-
Beneficiation Study
-
Beneficiation & Value
addition
- Beneficiation of Disseminated Low-Grade Chromite Ore
-
Physical Separation Methods
-
History and operation of Samancor Chrome
-
Cleaner process of chromate production by roasting
calcium oxide with chromite
-
Speciation and recovery of chromium from chromite
ore processing residues
-
Clean method for recovering metals from spent
catalysts
-
Separation of chromite from olivine by anionic
collectors
-
Beneficiation of chromite by multi gravity
separator
-
Recovery of chromite in sulfuric acid leaching
-
Mining by rock cutting in narrow reefs
-
DC-ARC process for chromite smelting
-
Refractory manufacturing technology
-
Advanced technologies for the iron and steel
industry
-
Ferrous technologies
-
Ferroalloy technologies
Consultants
-
Consultancy organization -
India
-
Design engineering, process equipment manufacturing and
execution of turnkey projects.
-
Project Services
-
List of Consultants
- Institute of Minerals and Materials Technology
Company
Profiles
-
Chromites Mine - India
-
Plant
in India - Ferro-alloys, including charge-chrome (high-carbon ferro-chrome)
-
International Chromium development association
-
Threshold value of Chromite
ore
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Applications
-
Importance of industrial
minerals in our everyday lives
-
Resin coated special minerals
and their application in foundries
-
Systematics in chromite as an
indicator of relative oxygen fugacit
Patents
- Chromite
ore beneficiation
-
Disintegration of chromites
-
Method of metal chromite preparation
-
Method of synthesis of metal chromites
-
Process for the preparation of copper chromite catalyst
-
Method and apparatus for separating copper from chromite
-
Process for extraction of platinum group
metals from chromite-bearing ore
-
Chromite recovery from chromite-bearing ore
-
Method of making highly sinterable lanthanum chromite powder
-
Electrolytic formation of chromite coatings
Plants
-
Wemco HMS drum separator
-
Kalimantan zircon processing plant
-
Kemi chromite and ferrochrome mine
Projects
and Equipment Suppliers
-
Pre-Feasibility Report for
Establishment of Chrome Beneficiation
-
Chromite beneficiation plant project
-
Establishment of Chrome Ore
Beneficiation (COB) Plant of 40 TPH Feed Capacity
-
Plant for enhancement of Chrome
Concentrate production
-
Project for execution
-
Chromite tailings retreatment programme
-
Nickel Cobalt
Project
- Promoted
zinc chromite catalysts for higher alcohol synthesis in a
slurry reactor
-
Chanderpur Works
-
Roche Mining
Market Scenario
-
Chromites
Mineral Data - India
-
Environment Practices -
Hexavalent chrome Industry
-
Environmental Impact Assessment Guidance Manual
-
Mineral
Industry Survey - Chromium 2019
-
Chromium -
data 2020
-
Chromium Year
Book - 2016
-
Recycling
Metals - 2016
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