METHOD FOR TREATMENT OF CHROME-CONTAINING MOLTEN IRON AND SLAG
Chrome-containing molten iron (31) and slag (32) are to be obtained in an electric furnace operation using CaF2-free slag. In order to reduce and collect chrome from the slag while simultaneously promoting desulfurization of molten iron, a chrome-containig molten iron produced in an electric furnace...
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| creator | MORI MASAKAZU YOSHINO TAKAHIRO |
| description | Chrome-containing molten iron (31) and slag (32) are to be obtained in an electric furnace operation using CaF2-free slag. In order to reduce and collect chrome from the slag while simultaneously promoting desulfurization of molten iron, a chrome-containig molten iron produced in an electric furnace and having a Cr content of from 8.0 to 35.0& by mass, and CaF2-free electric furnace slag formed during the molten iron production, including Cr2o3, SiO2 and Aco as the constituent components and having a basicity Cao/SiO2 of from 0.7 to 1.7, are mechanically stirred with an impeller (2) in an refining vessel (30). A metal Al-containng substance and CaO are put into the vessel before the end of stirring to thereby control the basicity of the slag after the end of stirring to at least 1.9 |
| format | Patent |
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In order to reduce and collect chrome from the slag while simultaneously promoting desulfurization of molten iron, a chrome-containig molten iron produced in an electric furnace and having a Cr content of from 8.0 to 35.0& by mass, and CaF2-free electric furnace slag formed during the molten iron production, including Cr2o3, SiO2 and Aco as the constituent components and having a basicity Cao/SiO2 of from 0.7 to 1.7, are mechanically stirred with an impeller (2) in an refining vessel (30). A metal Al-containng substance and CaO are put into the vessel before the end of stirring to thereby control the basicity of the slag after the end of stirring to at least 1.9</description><language>eng</language><subject>BLASTING ; CHEMISTRY ; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS ; DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS,IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KINDOF FURNACE ; FURNACES ; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC ; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS ; HEATING ; KILNS ; LIGHTING ; MECHANICAL ENGINEERING ; METALLURGY ; METALLURGY OF IRON ; OVENS ; PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL ; RETORTS ; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS ; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE ; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS ; WEAPONS</subject><creationdate>2017</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=20170315&DB=EPODOC&CC=MY&NR=160584A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20170315&DB=EPODOC&CC=MY&NR=160584A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>MORI MASAKAZU</creatorcontrib><creatorcontrib>YOSHINO TAKAHIRO</creatorcontrib><title>METHOD FOR TREATMENT OF CHROME-CONTAINING MOLTEN IRON AND SLAG</title><description>Chrome-containing molten iron (31) and slag (32) are to be obtained in an electric furnace operation using CaF2-free slag. In order to reduce and collect chrome from the slag while simultaneously promoting desulfurization of molten iron, a chrome-containig molten iron produced in an electric furnace and having a Cr content of from 8.0 to 35.0& by mass, and CaF2-free electric furnace slag formed during the molten iron production, including Cr2o3, SiO2 and Aco as the constituent components and having a basicity Cao/SiO2 of from 0.7 to 1.7, are mechanically stirred with an impeller (2) in an refining vessel (30). A metal Al-containng substance and CaO are put into the vessel before the end of stirring to thereby control the basicity of the slag after the end of stirring to at least 1.9</description><subject>BLASTING</subject><subject>CHEMISTRY</subject><subject>CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS</subject><subject>DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS,IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KINDOF FURNACE</subject><subject>FURNACES</subject><subject>GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC</subject><subject>GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS</subject><subject>HEATING</subject><subject>KILNS</subject><subject>LIGHTING</subject><subject>MECHANICAL ENGINEERING</subject><subject>METALLURGY</subject><subject>METALLURGY OF IRON</subject><subject>OVENS</subject><subject>PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL</subject><subject>RETORTS</subject><subject>TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS</subject><subject>TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE</subject><subject>TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS</subject><subject>WEAPONS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2017</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZLDzdQ3x8HdRcPMPUggJcnUM8XX1C1Hwd1Nw9gjy93XVdfb3C3H09PP0c1fw9fcJcfVT8Azy91Nw9HNRCPZxdOdhYE1LzClO5YXS3Axybq4hzh66qQX58anFBYnJqXmpJfG-kYZmBqYWJo7GBBUAAFudKOA</recordid><startdate>20170315</startdate><enddate>20170315</enddate><creator>MORI MASAKAZU</creator><creator>YOSHINO TAKAHIRO</creator><scope>EVB</scope></search><sort><creationdate>20170315</creationdate><title>METHOD FOR TREATMENT OF CHROME-CONTAINING MOLTEN IRON AND SLAG</title><author>MORI MASAKAZU ; YOSHINO TAKAHIRO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_MY160584A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2017</creationdate><topic>BLASTING</topic><topic>CHEMISTRY</topic><topic>CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS</topic><topic>DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS,IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KINDOF FURNACE</topic><topic>FURNACES</topic><topic>GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC</topic><topic>GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS</topic><topic>HEATING</topic><topic>KILNS</topic><topic>LIGHTING</topic><topic>MECHANICAL ENGINEERING</topic><topic>METALLURGY</topic><topic>METALLURGY OF IRON</topic><topic>OVENS</topic><topic>PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL</topic><topic>RETORTS</topic><topic>TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS</topic><topic>TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE</topic><topic>TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS</topic><topic>WEAPONS</topic><toplevel>online_resources</toplevel><creatorcontrib>MORI MASAKAZU</creatorcontrib><creatorcontrib>YOSHINO TAKAHIRO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>MORI MASAKAZU</au><au>YOSHINO TAKAHIRO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>METHOD FOR TREATMENT OF CHROME-CONTAINING MOLTEN IRON AND SLAG</title><date>2017-03-15</date><risdate>2017</risdate><abstract>Chrome-containing molten iron (31) and slag (32) are to be obtained in an electric furnace operation using CaF2-free slag. In order to reduce and collect chrome from the slag while simultaneously promoting desulfurization of molten iron, a chrome-containig molten iron produced in an electric furnace and having a Cr content of from 8.0 to 35.0& by mass, and CaF2-free electric furnace slag formed during the molten iron production, including Cr2o3, SiO2 and Aco as the constituent components and having a basicity Cao/SiO2 of from 0.7 to 1.7, are mechanically stirred with an impeller (2) in an refining vessel (30). A metal Al-containng substance and CaO are put into the vessel before the end of stirring to thereby control the basicity of the slag after the end of stirring to at least 1.9</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | BLASTING CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS,IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KINDOF FURNACE FURNACES GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING KILNS LIGHTING MECHANICAL ENGINEERING METALLURGY METALLURGY OF IRON OVENS PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL RETORTS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS WEAPONS |
| title | METHOD FOR TREATMENT OF CHROME-CONTAINING MOLTEN IRON AND SLAG |
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