Process and apparatus for producing high purity iron

Details Process and apparatus for producing high purity iron Process and apparatus for producing high purity iron

1985-03-14

1988-05-31

Andrews, Melvyn J.

Specialized metallurgical processes, compositions for use therei

Processes

Electrothermic processes

266176, C21B 1304, F27D 500

Patent

active

047478721

ABSTRACT:
Improved process and apparatus for the reduction of iron oxides employing a solid reducing agent. Particulate iron oxides are mixed with particles of the reducing agent and are subjected to high temperatures within a vessel made of refractory material which is externally heated in a furnace. The problem and drawbacks that have been found in the past, such as the fracture and high costs of the refractory vessels, are solved by means of the present invention which comprises laying a sheet made of tinplate or of other suitable material, between the vessel and solids to prevent them from sticking to the vessel because of the high temperature, thus providing an economic and advantageous process. In one of its embodiments, this process is particularly suitable for the production of high purity iron, that is with a low content of gangue and carbon. This high purity iron, once converted to powder with adequate particle size, has a number of diverse applications in industry.

REFERENCES:
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"DRI-Technology and Economics of Production and Use".
Direct Reduced Iron, pub. Iron & Steel Soc. of AIME, 1980, TN707D56, pp. 74 and 75.

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