ADDITIVE FOR STEEL REFINING

ADDITIVE FOR STEEL REFINING

PROBLEM TO BE SOLVED: To obtain an additive for steel refining excellent in the balance to high desulfurization, high safety and non-erosiveness of a furnace lining, or the like, by preparing the additive for steel refining containing specifized ratios of CaO, CaCN2 and the other inorganic materials...

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Hauptverfasser: NAMEKI MASANOBU, KAGA TETSUO
Format: Patent
Sprache:eng
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CHEMISTRY
METALLURGY
METALLURGY OF IRON
PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL
TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
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creator NAMEKI MASANOBU
KAGA TETSUO
description PROBLEM TO BE SOLVED: To obtain an additive for steel refining excellent in the balance to high desulfurization, high safety and non-erosiveness of a furnace lining, or the like, by preparing the additive for steel refining containing specifized ratios of CaO, CaCN2 and the other inorganic materials and composed of a specified range of granular material. SOLUTION: The additive for steel refining containing 10-90 wt.% CaO, 3-70 wt.% CaCN2 and 5-70 wt.% inorganic materials except CaO and CaCN2 and composed of the granular material having
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SOLUTION: The additive for steel refining containing 10-90 wt.% CaO, 3-70 wt.% CaCN2 and 5-70 wt.% inorganic materials except CaO and CaCN2 and composed of the granular material having &lt;=20 wt.% undersize of 0.2 mm grain and &lt;=10 wt.% oversize of 20 mm, is prepared. As CaCN2, synthetic calcium cyanamide, commercially available calcium cyanamide for industry, lime nitrogen, and the like, are used. As the inorganic materials, metal of Al, Si, Mg, Ca, alloys containing essentially of one or more kinds of these metallic components, carbonaceous material of carbon, graphite, carbon black, coke, coal, and inorganic compounds such as Al2O3, SiO2, MgO, Ca(OH)2, CaCO3, Na2CO3, CaF2, are suitably used.</description><edition>7</edition><language>eng</language><subject>CHEMISTRY ; METALLURGY ; METALLURGY OF IRON ; PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL ; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS</subject><creationdate>2001</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20010109&amp;DB=EPODOC&amp;CC=JP&amp;NR=2001003114A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,777,882,25545,76296</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20010109&amp;DB=EPODOC&amp;CC=JP&amp;NR=2001003114A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>NAMEKI MASANOBU</creatorcontrib><creatorcontrib>KAGA TETSUO</creatorcontrib><title>ADDITIVE FOR STEEL REFINING</title><description>PROBLEM TO BE SOLVED: To obtain an additive for steel refining excellent in the balance to high desulfurization, high safety and non-erosiveness of a furnace lining, or the like, by preparing the additive for steel refining containing specifized ratios of CaO, CaCN2 and the other inorganic materials and composed of a specified range of granular material. SOLUTION: The additive for steel refining containing 10-90 wt.% CaO, 3-70 wt.% CaCN2 and 5-70 wt.% inorganic materials except CaO and CaCN2 and composed of the granular material having &lt;=20 wt.% undersize of 0.2 mm grain and &lt;=10 wt.% oversize of 20 mm, is prepared. As CaCN2, synthetic calcium cyanamide, commercially available calcium cyanamide for industry, lime nitrogen, and the like, are used. 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subjects CHEMISTRY
METALLURGY
METALLURGY OF IRON
PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL
TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
title ADDITIVE FOR STEEL REFINING
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