Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ExxonMobil Technology and Engineering Co
Original Assignee
Exxon Research and Engineering Co
Esso Research and Engineering Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Exxon Research and Engineering Co, Esso Research and Engineering CofiledCriticalExxon Research and Engineering Co
Priority to ES342833ApriorityCriticalpatent/ES342833A1/en
Publication of ES342833A1publicationCriticalpatent/ES342833A1/en
A stepwise process of reduction of iron ore, in which iron oxides are fluidized by ascending gases, reduced, the gas leaving the process is treated by elimination of water and carbon dioxide to regenerate the reducing power of said exhaust gas, and in which the reduced iron produced from a final stage is removed, characterized by the improvement comprising: providing carbonaceous fuel and oxygen in an intermediate zone; burn said fuel and reduce the oxidized iron ore to ferrous oxide at temperatures ranging from 649º to 982º to give an exit gas that includes carbon monoxide, hydrogen and water; withdrawing the heated gas fed and fed to an adjacent preceding zone, which contains ferric oxide; preheat and reduce in part the ferric oxide while maintaining a temperature that goes from 315fº to 482º in that area to convert. (Machine-translation by Google Translate, not legally binding)
ES342833A1967-07-101967-07-10A steeling procedure for iron mineral reduction. (Machine-translation by Google Translate, not legally binding)
ExpiredES342833A1
(en)
Procedure for the reduction of nodulized iron minerals, through gas, and installation for the practical application of the same. (Machine-translation by Google Translate, not legally binding)