Tata Steel Limited

Debashish Bhattacharjee

Sumitesh Das

Pradip Kumar Banerjee

Jayabrata Bhadurt

Deb Roy

Subhrakanti Chakraborty

Shantanu Chakraborty

Tridibesh Mukherjee

Narasimha Mangadoddy

T Mukherjee

Peter Holtham

Matthew Brennan

Tridibesh Mukharjee

Vilas Tathavadkar

Ashiwani K Gupta

T Mukharjee

This invention relates to a cyclone for dense medium separation that includes an inverted conical shaped cyclone body which provides an interior space having an inner wall surface a vortex finder including a lower end that extends longitudinally into an upper region of the interior space of the cyclone body an overflow outlet associated with an upper end of the vortex finder a feed inlet that is in fluid communication with the upper region of the interior space of the cyclone body an outlet associated with a lower region of the interior space and the inner wall surface of the interior space curves inwardly and downwardly from the upper region curves inwardly and downwardly from the upper region of the interior space to the lower region of the interior space.

Cyclone for dense medium separation

A method for producing hydrogen and/or other gases from steel plant wastes and waste heat is disclosed. The method comprises the steps of providing molten waste from steel plant like molten slag in a reactor. The molten slag is contacted with water and/or steam in the presence of a reducing agent to form a stream of hydrogen and/or other gases. The hydrogen and/or other gases can then be extracted from the stream of gases from the reactor.

Method for producing hydrogen and/or other gases from steel plant wastes and waste heat

A system for the production of hydrogen from water in the presence of slag, comprising a graphite crucible containing molten slag; a reaction hood disposed over said crucible; a water line for spraying water on the molten slag in the crucible; and a steel tube for collecting and transferring the produced hydrogen gas from said hood into a condenser tank.

Set-up for production of hydrogen gas by thermo-chemical decomposition of water using steel plant slag and waste materials

A method and apparatus to increase the cooling rate of gas used in a batch annealing furnace of cold rolling mills under bypass cooling. The invention makes use of the higher heat transfer capacities of nanocoolants developed by a high-shear mixing of nanoparticles and stabilizers in a basic aqueous medium for cooling heated hydrogen flowing through a heat exchanger during bypass cooling of the batch annealing furnace. The nanofluid is prepared in a nanofluid preparation unit.

Method and apparatus for achieving higher cooling rates of a gas during bypass cooling in a batch annealing furnace of cold rolling mills

An improved frothing agent adaptable to froth flotation process to enhance coal selectivity for separation and efficiency of the froth flotation process comprises: 

Blended frother for producing low ash content clean coal through flotation

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Jamshedpur, India

Debashish Bhattacharjee