Method for harmlessly treating red mud
The invention relates to a method for harmlessly treating red mud, belongs to the technical field of red mud treatment, and solves the technical problem of comprehensive utilization of solid waste red mud. According to the technical scheme, the method comprises the following steps: firstly, drying a...
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| creator | LI GUOMIN TIAN YUMING LA XINRU LI YUYAN WANG HAOJIE WANG KAIYUE LIANG LIPING LIU SUQING GAO XIANPENG LI LINGXIAO |
| description | The invention relates to a method for harmlessly treating red mud, belongs to the technical field of red mud treatment, and solves the technical problem of comprehensive utilization of solid waste red mud. According to the technical scheme, the method comprises the following steps: firstly, drying and dispersing the red mud, then crushing a reducing agent to obtain blocks with the particle size less than 1 mm, then weighing the red mud and the reducing agent according to a certain proportion, uniformly mixing the red mud and the reducing agent, and finally, performing high-temperature carbon thermal reduction treatment in an inert atmosphere to obtain a product of which the main phases are FeAl2O4, NaAlSiO4, Fe, FeC and C. According to the method, Fe in the solid waste red mud is reduced and recovered by using C in the reducing agent, and meanwhile, OH in the red mud can react and activate C in the reducing agent, so that the effect of consuming strong alkali of the red mud is achieved, and cyclic util |
| format | Patent |
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According to the technical scheme, the method comprises the following steps: firstly, drying and dispersing the red mud, then crushing a reducing agent to obtain blocks with the particle size less than 1 mm, then weighing the red mud and the reducing agent according to a certain proportion, uniformly mixing the red mud and the reducing agent, and finally, performing high-temperature carbon thermal reduction treatment in an inert atmosphere to obtain a product of which the main phases are FeAl2O4, NaAlSiO4, Fe, FeC and C. According to the method, Fe<3+> in the solid waste red mud is reduced and recovered by using C in the reducing agent, and meanwhile, OH<-> in the red mud can react and activate C in the reducing agent, so that the effect of consuming strong alkali of the red mud is achieved, and cyclic util</description><language>chi ; eng</language><subject>CHEMISTRY ; COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F ; COMPOUNDS THEREOF ; DISPOSAL OF SOLID WASTE ; INORGANIC CHEMISTRY ; METALLURGY ; NON-METALLIC ELEMENTS ; PERFORMING OPERATIONS ; RECLAMATION OF CONTAMINED SOIL SOIL ; TRANSPORTING</subject><creationdate>2021</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=20211231&DB=EPODOC&CC=CN&NR=113857222A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20211231&DB=EPODOC&CC=CN&NR=113857222A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>LI GUOMIN</creatorcontrib><creatorcontrib>TIAN YUMING</creatorcontrib><creatorcontrib>LA XINRU</creatorcontrib><creatorcontrib>LI YUYAN</creatorcontrib><creatorcontrib>WANG HAOJIE</creatorcontrib><creatorcontrib>WANG KAIYUE</creatorcontrib><creatorcontrib>LIANG LIPING</creatorcontrib><creatorcontrib>LIU SUQING</creatorcontrib><creatorcontrib>GAO XIANPENG</creatorcontrib><creatorcontrib>LI LINGXIAO</creatorcontrib><title>Method for harmlessly treating red mud</title><description>The invention relates to a method for harmlessly treating red mud, belongs to the technical field of red mud treatment, and solves the technical problem of comprehensive utilization of solid waste red mud. 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According to the method, Fe<3+> in the solid waste red mud is reduced and recovered by using C in the reducing agent, and meanwhile, OH<-> in the red mud can react and activate C in the reducing agent, so that the effect of consuming strong alkali of the red mud is achieved, and cyclic util</description><subject>CHEMISTRY</subject><subject>COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F</subject><subject>COMPOUNDS THEREOF</subject><subject>DISPOSAL OF SOLID WASTE</subject><subject>INORGANIC CHEMISTRY</subject><subject>METALLURGY</subject><subject>NON-METALLIC ELEMENTS</subject><subject>PERFORMING OPERATIONS</subject><subject>RECLAMATION OF CONTAMINED SOIL SOIL</subject><subject>TRANSPORTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2021</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZFDzTS3JyE9RSMsvUshILMrNSS0uzqlUKClKTSzJzEtXKEpNUcgtTeFhYE1LzClO5YXS3AyKbq4hzh66qQX58anFBYnJqXmpJfHOfoaGxham5kZGRo7GxKgBAGlYJ3Y</recordid><startdate>20211231</startdate><enddate>20211231</enddate><creator>LI GUOMIN</creator><creator>TIAN YUMING</creator><creator>LA XINRU</creator><creator>LI YUYAN</creator><creator>WANG HAOJIE</creator><creator>WANG KAIYUE</creator><creator>LIANG LIPING</creator><creator>LIU SUQING</creator><creator>GAO XIANPENG</creator><creator>LI LINGXIAO</creator><scope>EVB</scope></search><sort><creationdate>20211231</creationdate><title>Method for harmlessly treating red mud</title><author>LI GUOMIN ; TIAN YUMING ; LA XINRU ; LI YUYAN ; WANG HAOJIE ; WANG KAIYUE ; LIANG LIPING ; LIU SUQING ; GAO XIANPENG ; LI LINGXIAO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN113857222A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>chi ; eng</language><creationdate>2021</creationdate><topic>CHEMISTRY</topic><topic>COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F</topic><topic>COMPOUNDS THEREOF</topic><topic>DISPOSAL OF SOLID WASTE</topic><topic>INORGANIC CHEMISTRY</topic><topic>METALLURGY</topic><topic>NON-METALLIC ELEMENTS</topic><topic>PERFORMING OPERATIONS</topic><topic>RECLAMATION OF CONTAMINED SOIL SOIL</topic><topic>TRANSPORTING</topic><toplevel>online_resources</toplevel><creatorcontrib>LI GUOMIN</creatorcontrib><creatorcontrib>TIAN YUMING</creatorcontrib><creatorcontrib>LA XINRU</creatorcontrib><creatorcontrib>LI YUYAN</creatorcontrib><creatorcontrib>WANG HAOJIE</creatorcontrib><creatorcontrib>WANG KAIYUE</creatorcontrib><creatorcontrib>LIANG LIPING</creatorcontrib><creatorcontrib>LIU SUQING</creatorcontrib><creatorcontrib>GAO XIANPENG</creatorcontrib><creatorcontrib>LI LINGXIAO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>LI GUOMIN</au><au>TIAN YUMING</au><au>LA XINRU</au><au>LI YUYAN</au><au>WANG HAOJIE</au><au>WANG KAIYUE</au><au>LIANG LIPING</au><au>LIU SUQING</au><au>GAO XIANPENG</au><au>LI LINGXIAO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Method for harmlessly treating red mud</title><date>2021-12-31</date><risdate>2021</risdate><abstract>The invention relates to a method for harmlessly treating red mud, belongs to the technical field of red mud treatment, and solves the technical problem of comprehensive utilization of solid waste red mud. According to the technical scheme, the method comprises the following steps: firstly, drying and dispersing the red mud, then crushing a reducing agent to obtain blocks with the particle size less than 1 mm, then weighing the red mud and the reducing agent according to a certain proportion, uniformly mixing the red mud and the reducing agent, and finally, performing high-temperature carbon thermal reduction treatment in an inert atmosphere to obtain a product of which the main phases are FeAl2O4, NaAlSiO4, Fe, FeC and C. According to the method, Fe<3+> in the solid waste red mud is reduced and recovered by using C in the reducing agent, and meanwhile, OH<-> in the red mud can react and activate C in the reducing agent, so that the effect of consuming strong alkali of the red mud is achieved, and cyclic util</abstract><oa>free_for_read</oa></addata></record> |
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| language | chi ; eng |
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| subjects | CHEMISTRY COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F COMPOUNDS THEREOF DISPOSAL OF SOLID WASTE INORGANIC CHEMISTRY METALLURGY NON-METALLIC ELEMENTS PERFORMING OPERATIONS RECLAMATION OF CONTAMINED SOIL SOIL TRANSPORTING |
| title | Method for harmlessly treating red mud |
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