METHOD OF PRODUCING ALUMINA POWDER
PROBLEM TO BE SOLVED: To provide a method by which fine alumina powder of high purity can be produced by a thermal decomposition method of aluminum chloride.SOLUTION: A method of producing alumina powder by thermally decomposing aluminum chloride hexahydrate is provided. In the method, the alumina p...
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| creator | SAEKI KEIJI YAMAMOTO KIKUO |
| description | PROBLEM TO BE SOLVED: To provide a method by which fine alumina powder of high purity can be produced by a thermal decomposition method of aluminum chloride.SOLUTION: A method of producing alumina powder by thermally decomposing aluminum chloride hexahydrate is provided. In the method, the alumina powder which is easy to crush can be obtained by thermally decomposing the aluminum chloride hexahydrate under a condition of an average decomposition speed of 3-15 mass%/hr represented by following expression until the decomposition rate reaches 80 mass%, thereby the fine and high purity alumina powder extremely little contaminated due to crushing is efficiently produced. Here, average decomposition speed (mass%/hr)=decomposition rate (mass%)/decomposition hours (hr). |
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In the method, the alumina powder which is easy to crush can be obtained by thermally decomposing the aluminum chloride hexahydrate under a condition of an average decomposition speed of 3-15 mass%/hr represented by following expression until the decomposition rate reaches 80 mass%, thereby the fine and high purity alumina powder extremely little contaminated due to crushing is efficiently produced. Here, average decomposition speed (mass%/hr)=decomposition rate (mass%)/decomposition hours (hr).</description><language>eng</language><subject>CHEMISTRY ; COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS ; INORGANIC CHEMISTRY ; METALLURGY</subject><creationdate>2013</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=20131007&DB=EPODOC&CC=JP&NR=2013203598A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,309,781,886,25569,76552</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20131007&DB=EPODOC&CC=JP&NR=2013203598A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>SAEKI KEIJI</creatorcontrib><creatorcontrib>YAMAMOTO KIKUO</creatorcontrib><title>METHOD OF PRODUCING ALUMINA POWDER</title><description>PROBLEM TO BE SOLVED: To provide a method by which fine alumina powder of high purity can be produced by a thermal decomposition method of aluminum chloride.SOLUTION: A method of producing alumina powder by thermally decomposing aluminum chloride hexahydrate is provided. In the method, the alumina powder which is easy to crush can be obtained by thermally decomposing the aluminum chloride hexahydrate under a condition of an average decomposition speed of 3-15 mass%/hr represented by following expression until the decomposition rate reaches 80 mass%, thereby the fine and high purity alumina powder extremely little contaminated due to crushing is efficiently produced. Here, average decomposition speed (mass%/hr)=decomposition rate (mass%)/decomposition hours (hr).</description><subject>CHEMISTRY</subject><subject>COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS</subject><subject>INORGANIC CHEMISTRY</subject><subject>METALLURGY</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2013</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZFDydQ3x8HdR8HdTCAjydwl19vRzV3D0CfX19HNUCPAPd3EN4mFgTUvMKU7lhdLcDEpuriHOHrqpBfnxqcUFicmpeakl8V4BRgaGxkYGxqaWFo7GRCkCAHWQItg</recordid><startdate>20131007</startdate><enddate>20131007</enddate><creator>SAEKI KEIJI</creator><creator>YAMAMOTO KIKUO</creator><scope>EVB</scope></search><sort><creationdate>20131007</creationdate><title>METHOD OF PRODUCING ALUMINA POWDER</title><author>SAEKI KEIJI ; YAMAMOTO KIKUO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2013203598A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng</language><creationdate>2013</creationdate><topic>CHEMISTRY</topic><topic>COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS</topic><topic>INORGANIC CHEMISTRY</topic><topic>METALLURGY</topic><toplevel>online_resources</toplevel><creatorcontrib>SAEKI KEIJI</creatorcontrib><creatorcontrib>YAMAMOTO KIKUO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>SAEKI KEIJI</au><au>YAMAMOTO KIKUO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>METHOD OF PRODUCING ALUMINA POWDER</title><date>2013-10-07</date><risdate>2013</risdate><abstract>PROBLEM TO BE SOLVED: To provide a method by which fine alumina powder of high purity can be produced by a thermal decomposition method of aluminum chloride.SOLUTION: A method of producing alumina powder by thermally decomposing aluminum chloride hexahydrate is provided. In the method, the alumina powder which is easy to crush can be obtained by thermally decomposing the aluminum chloride hexahydrate under a condition of an average decomposition speed of 3-15 mass%/hr represented by following expression until the decomposition rate reaches 80 mass%, thereby the fine and high purity alumina powder extremely little contaminated due to crushing is efficiently produced. Here, average decomposition speed (mass%/hr)=decomposition rate (mass%)/decomposition hours (hr).</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | CHEMISTRY COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS INORGANIC CHEMISTRY METALLURGY |
| title | METHOD OF PRODUCING ALUMINA POWDER |
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