Specialized metallurgical processes – compositions for use therei – Processes – Electrothermic processes
Patent
1986-09-05
1989-07-11
Silbaugh, Jan H.
Specialized metallurgical processes, compositions for use therei
Processes
Electrothermic processes
75 41, 75 42, 264 69, 264118, 264122, B28B 108, B29C 4300, C21B 500, C22B 114
Patent
active
048468843
ABSTRACT:
A process for producing cold-bonded or non-fired iron ore which introduced as a charge into a blast furnace. The iron ore, which contains 10 to 70% of particles having a diameter ranging from 1 to 10 mm, is molded into a block, preferably by a pressure-molding method, a shock-molding method or a packing-molding method with vibrations. The block is then cured or hardened. This hardened block is crushed to have a predetermined shape. An additive such as CaO, Al.sub.2 O.sub.3, or MgO may be added to the iron ore to adjust the basicity as a whole to 0.8 to 2.0. Moreover, the molding step is conducted so that the product may have a void volume equal to or less than 25%.
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patent: 4116679 (1978-09-01), Pietsch
patent: 4273575 (1981-06-01), Litzinger et al.
patent: 4326887 (1982-04-01), McAllister et al.
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patent: 4528025 (1985-07-01), Goksel
Ichidate Minoru
Shigematsu Tatsuhiko
Shiotani Chitose
Tozawa Yohzi
Kutach Karen D.
Silbaugh Jan H.
Sumitomo Metal Industries Ltd.
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