Method for improving slag permeation resistance of refractory aluminum-chromium material
The invention belongs to the technical field of refractory materials and particularly relates to a method for improving slag permeation resistance of a refractory aluminum-chromium material. The method for improving the slag permeation resistance of the refractory aluminum-chromium material comprise...
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| creator | LU ZHIQIANG SUN HONGGANG LI PENGTAO WANG GANG ZHAO SHIXIAN CAI BINLI |
| description | The invention belongs to the technical field of refractory materials and particularly relates to a method for improving slag permeation resistance of a refractory aluminum-chromium material. The method for improving the slag permeation resistance of the refractory aluminum-chromium material comprises the steps that Mn oxide is added into slag in a high-temperature furnace, the slag is modified by Mn oxide under the high temperature, and the modified slag is made to react with Cr2O3 and Al2O3 in the aluminum-chromium material to form MnCrAl2O4 and MnAl2O4 spinel structure layers, wherein the content of Mn in the modified slag under the working temperature is at least 15wt%, the content of (Mn+Fe+Mg) in the modified slag under the working temperature is at least 25wt%, and Mn oxide is one or more of MnO, MnO2, Mn2O3 and Mn3O4. By means of the method, permeation of the slag is reduced; the slag permeation resistance of the refractory aluminum-chromium material is improved, and the service life of the refractory aluminum-chromium material is prolonged. |
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The method for improving the slag permeation resistance of the refractory aluminum-chromium material comprises the steps that Mn oxide is added into slag in a high-temperature furnace, the slag is modified by Mn oxide under the high temperature, and the modified slag is made to react with Cr2O3 and Al2O3 in the aluminum-chromium material to form MnCrAl2O4 and MnAl2O4 spinel structure layers, wherein the content of Mn in the modified slag under the working temperature is at least 15wt%, the content of (Mn+Fe+Mg) in the modified slag under the working temperature is at least 25wt%, and Mn oxide is one or more of MnO, MnO2, Mn2O3 and Mn3O4. By means of the method, permeation of the slag is reduced; the slag permeation resistance of the refractory aluminum-chromium material is improved, and the service life of the refractory aluminum-chromium material is prolonged.</description><language>eng</language><subject>ARTIFICIAL STONE ; CEMENTS ; CERAMICS ; CHEMISTRY ; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS ; CONCRETE ; LIME, MAGNESIA ; METALLURGY ; REFRACTORIES ; SLAG ; TREATMENT OF NATURAL STONE</subject><creationdate>2016</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=20160217&DB=EPODOC&CC=CN&NR=105330314A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25543,76293</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20160217&DB=EPODOC&CC=CN&NR=105330314A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>LU ZHIQIANG</creatorcontrib><creatorcontrib>SUN HONGGANG</creatorcontrib><creatorcontrib>LI PENGTAO</creatorcontrib><creatorcontrib>WANG GANG</creatorcontrib><creatorcontrib>ZHAO SHIXIAN</creatorcontrib><creatorcontrib>CAI BINLI</creatorcontrib><title>Method for improving slag permeation resistance of refractory aluminum-chromium material</title><description>The invention belongs to the technical field of refractory materials and particularly relates to a method for improving slag permeation resistance of a refractory aluminum-chromium material. The method for improving the slag permeation resistance of the refractory aluminum-chromium material comprises the steps that Mn oxide is added into slag in a high-temperature furnace, the slag is modified by Mn oxide under the high temperature, and the modified slag is made to react with Cr2O3 and Al2O3 in the aluminum-chromium material to form MnCrAl2O4 and MnAl2O4 spinel structure layers, wherein the content of Mn in the modified slag under the working temperature is at least 15wt%, the content of (Mn+Fe+Mg) in the modified slag under the working temperature is at least 25wt%, and Mn oxide is one or more of MnO, MnO2, Mn2O3 and Mn3O4. 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The method for improving the slag permeation resistance of the refractory aluminum-chromium material comprises the steps that Mn oxide is added into slag in a high-temperature furnace, the slag is modified by Mn oxide under the high temperature, and the modified slag is made to react with Cr2O3 and Al2O3 in the aluminum-chromium material to form MnCrAl2O4 and MnAl2O4 spinel structure layers, wherein the content of Mn in the modified slag under the working temperature is at least 15wt%, the content of (Mn+Fe+Mg) in the modified slag under the working temperature is at least 25wt%, and Mn oxide is one or more of MnO, MnO2, Mn2O3 and Mn3O4. By means of the method, permeation of the slag is reduced; the slag permeation resistance of the refractory aluminum-chromium material is improved, and the service life of the refractory aluminum-chromium material is prolonged.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE LIME, MAGNESIA METALLURGY REFRACTORIES SLAG TREATMENT OF NATURAL STONE |
| title | Method for improving slag permeation resistance of refractory aluminum-chromium material |
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