Synthesis of alumina from high purity alum derived from coal fly ash
High purity alum (>99.9%) has been produced by the reaction of NH 4Al(SO 4) 2 derived from coal fly ash and ammonia in water at a controlled pH and then followed by the successive crystallization. The influence of heating source (conventional and microwave) on the decomposition of the alum and th...
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| Veröffentlicht in: | Materials science & engineering. A, Structural materials : properties, microstructure and processing Structural materials : properties, microstructure and processing, 2004-02, Vol.367 (1), p.166-170 |
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| container_title | Materials science & engineering. A, Structural materials : properties, microstructure and processing |
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| creator | Park, H.C. Park, Y.J. Stevens, R. |
| description | High purity alum (>99.9%) has been produced by the reaction of NH
4Al(SO
4)
2 derived from coal fly ash and ammonia in water at a controlled pH and then followed by the successive crystallization. The influence of heating source (conventional and microwave) on the decomposition of the alum and the characteristics of the resultant alumina was examined by means of XRD, TG/DTA, SEM and a laser scattering technique. The application of microwave heating for decomposition of the alum yielded finer α-Al
2O
3 powders with a higher specific surface area, when compared with conventional heating. |
| doi_str_mv | 10.1016/j.msea.2003.09.093 |
| format | Article |
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4Al(SO
4)
2 derived from coal fly ash and ammonia in water at a controlled pH and then followed by the successive crystallization. The influence of heating source (conventional and microwave) on the decomposition of the alum and the characteristics of the resultant alumina was examined by means of XRD, TG/DTA, SEM and a laser scattering technique. The application of microwave heating for decomposition of the alum yielded finer α-Al
2O
3 powders with a higher specific surface area, when compared with conventional heating.</description><identifier>ISSN: 0921-5093</identifier><identifier>EISSN: 1873-4936</identifier><identifier>DOI: 10.1016/j.msea.2003.09.093</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Alum ; Alumina ; Chemistry ; Coal fly ash ; Elements and non-metal compounds (oxides, hydroxides, hydrides, sulfides, carbides, ...) ; Exact sciences and technology ; Inorganic chemistry and origins of life ; Microwave heating ; Preparations and properties</subject><ispartof>Materials science & engineering. A, Structural materials : properties, microstructure and processing, 2004-02, Vol.367 (1), p.166-170</ispartof><rights>2003 Elsevier B.V.</rights><rights>2004 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c400t-c3c44fb35d06de0d6c6f12683b9d5c6d6b4c20d992f0ef727202f904c8f4f1f03</citedby><cites>FETCH-LOGICAL-c400t-c3c44fb35d06de0d6c6f12683b9d5c6d6b4c20d992f0ef727202f904c8f4f1f03</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.msea.2003.09.093$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=15416675$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Park, H.C.</creatorcontrib><creatorcontrib>Park, Y.J.</creatorcontrib><creatorcontrib>Stevens, R.</creatorcontrib><title>Synthesis of alumina from high purity alum derived from coal fly ash</title><title>Materials science & engineering. A, Structural materials : properties, microstructure and processing</title><description>High purity alum (>99.9%) has been produced by the reaction of NH
4Al(SO
4)
2 derived from coal fly ash and ammonia in water at a controlled pH and then followed by the successive crystallization. The influence of heating source (conventional and microwave) on the decomposition of the alum and the characteristics of the resultant alumina was examined by means of XRD, TG/DTA, SEM and a laser scattering technique. The application of microwave heating for decomposition of the alum yielded finer α-Al
2O
3 powders with a higher specific surface area, when compared with conventional heating.</description><subject>Alum</subject><subject>Alumina</subject><subject>Chemistry</subject><subject>Coal fly ash</subject><subject>Elements and non-metal compounds (oxides, hydroxides, hydrides, sulfides, carbides, ...)</subject><subject>Exact sciences and technology</subject><subject>Inorganic chemistry and origins of life</subject><subject>Microwave heating</subject><subject>Preparations and properties</subject><issn>0921-5093</issn><issn>1873-4936</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2004</creationdate><recordtype>article</recordtype><recordid>eNp9UMlKxEAQbUTBcfQHPOWit8TqJZ00eJFxhQEP6rnp6cX0kGXsTgbm702M4E0oKKi3FO8hdIkhw4D5zTZrolUZAaAZiHHoEVrgsqApE5QfowUIgtN8vJ-isxi3AIAZ5At0_3Zo-8pGH5POJaoeGt-qxIWuSSr_WSW7Ifj-8AMkxga_t2ZGdafqxNUjFKtzdOJUHe3F716ij8eH99Vzun59elndrVPNAPpUU82Y29DcADcWDNfcYcJLuhEm19zwDdMEjBDEgXUFKQgQJ4Dp0jGHHdAlup59d6H7GmzsZeOjtnWtWtsNUZKSjZlFPhLJTNShizFYJ3fBNyocJAY5FSa3cipMToVJEOPQUXT1666iVrULqtU-_ilzhjkvJvPbmWfHqHtvg4za21Zb44PVvTSd_-_NNyVPgPw</recordid><startdate>20040225</startdate><enddate>20040225</enddate><creator>Park, H.C.</creator><creator>Park, Y.J.</creator><creator>Stevens, R.</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20040225</creationdate><title>Synthesis of alumina from high purity alum derived from coal fly ash</title><author>Park, H.C. ; Park, Y.J. ; Stevens, R.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c400t-c3c44fb35d06de0d6c6f12683b9d5c6d6b4c20d992f0ef727202f904c8f4f1f03</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2004</creationdate><topic>Alum</topic><topic>Alumina</topic><topic>Chemistry</topic><topic>Coal fly ash</topic><topic>Elements and non-metal compounds (oxides, hydroxides, hydrides, sulfides, carbides, ...)</topic><topic>Exact sciences and technology</topic><topic>Inorganic chemistry and origins of life</topic><topic>Microwave heating</topic><topic>Preparations and properties</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Park, H.C.</creatorcontrib><creatorcontrib>Park, Y.J.</creatorcontrib><creatorcontrib>Stevens, R.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Materials science & engineering. A, Structural materials : properties, microstructure and processing</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Park, H.C.</au><au>Park, Y.J.</au><au>Stevens, R.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Synthesis of alumina from high purity alum derived from coal fly ash</atitle><jtitle>Materials science & engineering. A, Structural materials : properties, microstructure and processing</jtitle><date>2004-02-25</date><risdate>2004</risdate><volume>367</volume><issue>1</issue><spage>166</spage><epage>170</epage><pages>166-170</pages><issn>0921-5093</issn><eissn>1873-4936</eissn><abstract>High purity alum (>99.9%) has been produced by the reaction of NH
4Al(SO
4)
2 derived from coal fly ash and ammonia in water at a controlled pH and then followed by the successive crystallization. The influence of heating source (conventional and microwave) on the decomposition of the alum and the characteristics of the resultant alumina was examined by means of XRD, TG/DTA, SEM and a laser scattering technique. The application of microwave heating for decomposition of the alum yielded finer α-Al
2O
3 powders with a higher specific surface area, when compared with conventional heating.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/j.msea.2003.09.093</doi><tpages>5</tpages></addata></record> |
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| ispartof | Materials science & engineering. A, Structural materials : properties, microstructure and processing, 2004-02, Vol.367 (1), p.166-170 |
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| source | Access via ScienceDirect (Elsevier) |
| subjects | Alum Alumina Chemistry Coal fly ash Elements and non-metal compounds (oxides, hydroxides, hydrides, sulfides, carbides, ...) Exact sciences and technology Inorganic chemistry and origins of life Microwave heating Preparations and properties |
| title | Synthesis of alumina from high purity alum derived from coal fly ash |
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