View of November, 2010 -
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BAD LAND TOPOGRAPHY OF COASTAL BELT RED SEDIMENT DEPOSITS OF INDIA: A POTENTIAL RESOURCE
FOR INDUSTRIAL MINERALS
By T. Laxmi and R.Bhima Rao, Institute of Minerals and Materials Technology (Council of Scientific and
Industrial Research) Bhubaneswar 751 013, India
ABSTRACT
Bad land topography is formed due to weathering process of rocks. These bad lands are mostly associated
with red sediments, which contain placer heavy minerals. The mineral concentration and sediment content
in the red sediments vary from place to place. These red sediments are characterized by total heavy mineral
(THM) concentration with ilmenite, rutile, zircon, garnet, sillimanite and other minerals are in the order
of abundance identified. In this paper an attempt is made to study the red sediments occur in different
states of Tamilnadu, Andhra Pradesh and Orissa with particular reference to characterization of heavy
minerals and suggest a common flow sheet for both wet and dry processes for recovery of individual heavy
minerals suitable for industrial applications.
Kolkata comes alive with IMME 2010
By Our News Bureau
ABSTRACT
The biennial show IMME 2010 is organized by the Confederation of Indian Industry in association with the
Ministry of Mines, the Ministry of Coal, and Coal India Ltd. Today, 25 years since it inception, it continues
to work towards realizing its original objectives: to find ways and means to reduce wastage through better
and more efficient methods of mining with advanced technology and equipment. Exhibits on display cover the
latest technologies in mining-open cast and underground- ancillaries and tools: from slurry and chemflo pumps
to compressors, drills and rigs; from excavators and dump trucks to thyristor converters and computer
systems etc.
India’s Coal Sector Development and the Need for Adoption of Clean Coal Technologies
By D. N. Prasad, Dy. Advisor (Coal), Planning Commission, India
ABSTRACT
Sustainable economic development is the endeavour of world community. Energy is essential to economic and social
development and improved quality of life. Coal plays a crucial role in sustainbale development of global energy.
Coal is the primary source of commercial energy in the world as well as India. Coal accounts for around 24% of
global primary energy consumption compared to 35% from oil, 21% from gas, 7% from nuclear, 2% from hydro and 11%
from renewable and wastes. Around 39% of total world electricity generation is coal based. Continued exploitation
and use of coal as a major energy source is a certainty rather than an option and coal will continue to play a
key role in the future global energy demand. International Energy Agency’s World Energy Outlook says that coal
use is set to increase over the next 20 years as the world meets its growing energy needs. Even advanced economies
like the US have a big stake in coal’s future. Coal’s share in electricity generation in the US is about 52%,
China 78%, Australia 77%, South Africa 88% and India 70%. Also, coal is a key input for steel and cement indutries.
The global hard coal consumption in the year 2001 was 3799 mt and coal production was 3834 mt. India is the third
largest coal producer after China and USA.
Studies on the Cleaning Potentialities of High Ash Non-Coking Coal of Ib Valley Coalfields
By T.Gouri Charan Scientist, Central Institute of Mining & Fuel Research (CSIR),Dhanbad
P.C.Nagnoor Lecturer, Department of Mineral Processing, P.G.Centre, Nandihalli - Sandur, Karanataka
ABSTRACT
Coal is the main source of energy for the development of Indian economy and will remain as the most economically
viable option for power generation. About 71% of country’s total power generation is in the form of thermal, out
of which more than 60% is coal-based. Indian coals contain high ash content and are difficult-to-wash and it is
essential to beneficiate them to the required level acceptable to different end users. This article describes the
washability characteristics of a typical non coking coal from Ib Valley Coalfields aiming at 34% ash level for
power generation through pulverized fuel combustion. Conventional float-and-sink testing was used to determine
the yield of clean coal. A suitable flow scheme for beneficiation of the non-coking coal was suggested.
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