PROCESS FOR PRODUCING PARTICULATE IRON METAL
The amounts of a CaO-containing substance, an MgO-containing substance, and a SiO2-containing substance, contained in a raw material mixture, are adjusted such that manufacturing operation is performed with the slag basicity (CaO+MgO)/SiO2 of 1.3 to 2.3, and with MgO-concentration of 5 to 13% by mas...
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| creator | ITO, SHUZO TSUGE, OSAMU |
| description | The amounts of a CaO-containing substance, an MgO-containing substance, and a SiO2-containing substance, contained in a raw material mixture, are adjusted such that manufacturing operation is performed with the slag basicity (CaO+MgO)/SiO2 of 1.3 to 2.3, and with MgO-concentration of 5 to 13% by mass as to the slag composition, which are dependent upon the concentration of each of CaO, MgO, and SiO2, contained in the raw material mixture. This provides a manufacturing method for high-quality granulated metallic iron with low sulfur concentration, wherein a raw material mixture containing an iron-oxide-containing substance such as iron ore and a carbonaceous reducing agent such as a carbon material are subjected to reducing and melting with a moving hearth-type reducing furnace while suppressing sulfur concentration as much as possible, generated in the granulated metallic iron, particularly due to the carbon material such as coal. |
| format | Patent |
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This provides a manufacturing method for high-quality granulated metallic iron with low sulfur concentration, wherein a raw material mixture containing an iron-oxide-containing substance such as iron ore and a carbonaceous reducing agent such as a carbon material are subjected to reducing and melting with a moving hearth-type reducing furnace while suppressing sulfur concentration as much as possible, generated in the granulated metallic iron, particularly due to the carbon material such as coal.</description><language>eng ; fre ; ger</language><subject>BLASTING ; CHEMISTRY ; FERROUS OR NON-FERROUS ALLOYS ; FURNACES ; FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL ; HEATING ; KILNS ; LIGHTING ; MANUFACTURE OF IRON OR STEEL ; MECHANICAL ENGINEERING ; METALLURGY ; METALLURGY OF IRON ; OPEN SINTERING OR LIKE APPARATUS ; OVENS ; PRETREATMENT OF RAW MATERIALS ; PRODUCTION AND REFINING OF METALS ; RETORTS ; TREATMENT OF ALLOYS OR NON-FERROUS METALS ; WEAPONS</subject><creationdate>2011</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&date=20111228&DB=EPODOC&CC=EP&NR=1605067B1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20111228&DB=EPODOC&CC=EP&NR=1605067B1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>ITO, SHUZO</creatorcontrib><creatorcontrib>TSUGE, OSAMU</creatorcontrib><title>PROCESS FOR PRODUCING PARTICULATE IRON METAL</title><description>The amounts of a CaO-containing substance, an MgO-containing substance, and a SiO2-containing substance, contained in a raw material mixture, are adjusted such that manufacturing operation is performed with the slag basicity (CaO+MgO)/SiO2 of 1.3 to 2.3, and with MgO-concentration of 5 to 13% by mass as to the slag composition, which are dependent upon the concentration of each of CaO, MgO, and SiO2, contained in the raw material mixture. This provides a manufacturing method for high-quality granulated metallic iron with low sulfur concentration, wherein a raw material mixture containing an iron-oxide-containing substance such as iron ore and a carbonaceous reducing agent such as a carbon material are subjected to reducing and melting with a moving hearth-type reducing furnace while suppressing sulfur concentration as much as possible, generated in the granulated metallic iron, particularly due to the carbon material such as coal.</description><subject>BLASTING</subject><subject>CHEMISTRY</subject><subject>FERROUS OR NON-FERROUS ALLOYS</subject><subject>FURNACES</subject><subject>FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL</subject><subject>HEATING</subject><subject>KILNS</subject><subject>LIGHTING</subject><subject>MANUFACTURE OF IRON OR STEEL</subject><subject>MECHANICAL ENGINEERING</subject><subject>METALLURGY</subject><subject>METALLURGY OF IRON</subject><subject>OPEN SINTERING OR LIKE APPARATUS</subject><subject>OVENS</subject><subject>PRETREATMENT OF RAW MATERIALS</subject><subject>PRODUCTION AND REFINING OF METALS</subject><subject>RETORTS</subject><subject>TREATMENT OF ALLOYS OR NON-FERROUS METALS</subject><subject>WEAPONS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2011</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZNAJCPJ3dg0OVnDzD1IAsl1CnT393BUCHINCPJ1DfRxDXBU8g_z9FHxdQxx9eBhY0xJzilN5oTQ3g4Kba4izh25qQX58anFBYnJqXmpJvGuAoZmBqYGZuZOhMRFKAGG-JOk</recordid><startdate>20111228</startdate><enddate>20111228</enddate><creator>ITO, SHUZO</creator><creator>TSUGE, OSAMU</creator><scope>EVB</scope></search><sort><creationdate>20111228</creationdate><title>PROCESS FOR PRODUCING PARTICULATE IRON METAL</title><author>ITO, SHUZO ; TSUGE, OSAMU</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_EP1605067B13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre ; ger</language><creationdate>2011</creationdate><topic>BLASTING</topic><topic>CHEMISTRY</topic><topic>FERROUS OR NON-FERROUS ALLOYS</topic><topic>FURNACES</topic><topic>FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL</topic><topic>HEATING</topic><topic>KILNS</topic><topic>LIGHTING</topic><topic>MANUFACTURE OF IRON OR STEEL</topic><topic>MECHANICAL ENGINEERING</topic><topic>METALLURGY</topic><topic>METALLURGY OF IRON</topic><topic>OPEN SINTERING OR LIKE APPARATUS</topic><topic>OVENS</topic><topic>PRETREATMENT OF RAW MATERIALS</topic><topic>PRODUCTION AND REFINING OF METALS</topic><topic>RETORTS</topic><topic>TREATMENT OF ALLOYS OR NON-FERROUS METALS</topic><topic>WEAPONS</topic><toplevel>online_resources</toplevel><creatorcontrib>ITO, SHUZO</creatorcontrib><creatorcontrib>TSUGE, OSAMU</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>ITO, SHUZO</au><au>TSUGE, OSAMU</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>PROCESS FOR PRODUCING PARTICULATE IRON METAL</title><date>2011-12-28</date><risdate>2011</risdate><abstract>The amounts of a CaO-containing substance, an MgO-containing substance, and a SiO2-containing substance, contained in a raw material mixture, are adjusted such that manufacturing operation is performed with the slag basicity (CaO+MgO)/SiO2 of 1.3 to 2.3, and with MgO-concentration of 5 to 13% by mass as to the slag composition, which are dependent upon the concentration of each of CaO, MgO, and SiO2, contained in the raw material mixture. This provides a manufacturing method for high-quality granulated metallic iron with low sulfur concentration, wherein a raw material mixture containing an iron-oxide-containing substance such as iron ore and a carbonaceous reducing agent such as a carbon material are subjected to reducing and melting with a moving hearth-type reducing furnace while suppressing sulfur concentration as much as possible, generated in the granulated metallic iron, particularly due to the carbon material such as coal.</abstract><oa>free_for_read</oa></addata></record> |
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| language | eng ; fre ; ger |
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| subjects | BLASTING CHEMISTRY FERROUS OR NON-FERROUS ALLOYS FURNACES FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL HEATING KILNS LIGHTING MANUFACTURE OF IRON OR STEEL MECHANICAL ENGINEERING METALLURGY METALLURGY OF IRON OPEN SINTERING OR LIKE APPARATUS OVENS PRETREATMENT OF RAW MATERIALS PRODUCTION AND REFINING OF METALS RETORTS TREATMENT OF ALLOYS OR NON-FERROUS METALS WEAPONS |
| title | PROCESS FOR PRODUCING PARTICULATE IRON METAL |
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