Synthesis of sodalite from Brazilian kaolin wastes
Kaolin wastes from the Capim and Jari regions (Brazil) were used to produce sodalite under the same conditions used in the Bayer process, in order to control its formation when necessary. Of the two kaolin source materials, the kaolinite from the Jari region was more reactive in the synthesis of sod...
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| Veröffentlicht in: | Clay minerals 2015-12, Vol.50 (5), p.663-675 |
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| creator | Maia, Ana Aurea B Neves, Roberto F Angelica, Romulo S Pollmann, Herbert |
| description | Kaolin wastes from the Capim and Jari regions (Brazil) were used to produce sodalite under the same conditions used in the Bayer process, in order to control its formation when necessary. Of the two kaolin source materials, the kaolinite from the Jari region was more reactive in the synthesis of sodalite, which is attributed to the low degree of structural order of this clay mineral which increased its reactivity. At a temperature of 150°C and with a Na/Al ratio of 2, although the kaolinite did not react completely, sodalite was the primary reaction product. An increase in the temperature to 200°C provoked the complete reaction of the kaolinite only for the products in which carbonate and sulfate were used. With a Na/Al ratio >2 and for both of the temperatures, the kaolinite reacted completely to form sodalite. |
| doi_str_mv | 10.1180/claymin.2015.050.5.09 |
| format | Article |
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Of the two kaolin source materials, the kaolinite from the Jari region was more reactive in the synthesis of sodalite, which is attributed to the low degree of structural order of this clay mineral which increased its reactivity. At a temperature of 150°C and with a Na/Al ratio of 2, although the kaolinite did not react completely, sodalite was the primary reaction product. An increase in the temperature to 200°C provoked the complete reaction of the kaolinite only for the products in which carbonate and sulfate were used. With a Na/Al ratio >2 and for both of the temperatures, the kaolinite reacted completely to form sodalite.</description><identifier>ISSN: 0009-8558</identifier><identifier>EISSN: 1471-8030</identifier><identifier>DOI: 10.1180/claymin.2015.050.5.09</identifier><language>eng</language><publisher>Mineralogical Society</publisher><subject>Brazil ; Capim Brazil ; Carbonates ; clastic sediments ; clay mineralogy ; Clay minerals ; experimental studies ; framework silicates ; Jari Brazil ; Kaolin ; kaolin waste ; Kaolinite ; sed rocks, sediments ; Sedimentary petrology ; sediments ; sheet silicates ; silicates ; Sodalite ; sodalite group ; solid waste ; South America ; Sulfates ; Synthesis ; waste disposal ; Wastes</subject><ispartof>Clay minerals, 2015-12, Vol.50 (5), p.663-675</ispartof><rights>GeoRef, Copyright 2020, American Geosciences Institute. Reference includes data from GeoScienceWorld @Alexandria, VA @USA @United States. 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Of the two kaolin source materials, the kaolinite from the Jari region was more reactive in the synthesis of sodalite, which is attributed to the low degree of structural order of this clay mineral which increased its reactivity. At a temperature of 150°C and with a Na/Al ratio of 2, although the kaolinite did not react completely, sodalite was the primary reaction product. An increase in the temperature to 200°C provoked the complete reaction of the kaolinite only for the products in which carbonate and sulfate were used. With a Na/Al ratio >2 and for both of the temperatures, the kaolinite reacted completely to form sodalite.</description><subject>Brazil</subject><subject>Capim Brazil</subject><subject>Carbonates</subject><subject>clastic sediments</subject><subject>clay mineralogy</subject><subject>Clay minerals</subject><subject>experimental studies</subject><subject>framework silicates</subject><subject>Jari Brazil</subject><subject>Kaolin</subject><subject>kaolin waste</subject><subject>Kaolinite</subject><subject>sed rocks, sediments</subject><subject>Sedimentary petrology</subject><subject>sediments</subject><subject>sheet silicates</subject><subject>silicates</subject><subject>Sodalite</subject><subject>sodalite group</subject><subject>solid waste</subject><subject>South America</subject><subject>Sulfates</subject><subject>Synthesis</subject><subject>waste disposal</subject><subject>Wastes</subject><issn>0009-8558</issn><issn>1471-8030</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><recordid>eNqNkEtLAzEUhYMoWKs_QZilIFNvkkkms9TiCwou1HW4nUlrajqpyZQy_noztOBO3NwH3HPu4SPkksKEUgU3tcN-bdsJAyomIGCSanVERrQoaa6AwzEZAUCVKyHUKTmLcZVWXig-Iuy1b7sPE23M_CKLvkFnO5Mtgl9ndwG_rbPYZp_onW2zHcbOxHNyskAXzcWhj8n7w_3b9CmfvTw-T29nORZcdbkpSyY4cF5j-kYLNsSBecmRYs2wlk05By5UowoAhrISQrIGuWIMpJxXfEyu9r6b4L-2JnZ6bWNtnMPW-G3UVDEhCioE_OMUVEmpTGnGROxP6-BjDGahN8GuMfSagh5w6gNOPeDUCadOdUgz3et26DoTGrMM2z4NeuW3oU0c_tYLEFIO36_3LkvjY21NW5udD675dUkqqaFkFUj-A6d4jPQ</recordid><startdate>201512</startdate><enddate>201512</enddate><creator>Maia, Ana Aurea B</creator><creator>Neves, Roberto F</creator><creator>Angelica, Romulo S</creator><creator>Pollmann, Herbert</creator><general>Mineralogical Society</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7UA</scope><scope>C1K</scope><scope>F1W</scope><scope>H96</scope><scope>L.G</scope><scope>7QQ</scope><scope>7SR</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>201512</creationdate><title>Synthesis of sodalite from Brazilian kaolin wastes</title><author>Maia, Ana Aurea B ; Neves, Roberto F ; Angelica, Romulo S ; Pollmann, Herbert</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a438t-e77253033ca00014214710b73a1ac2ac6d7b0358d84002a695562da3822066b93</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>Brazil</topic><topic>Capim Brazil</topic><topic>Carbonates</topic><topic>clastic sediments</topic><topic>clay mineralogy</topic><topic>Clay minerals</topic><topic>experimental studies</topic><topic>framework silicates</topic><topic>Jari Brazil</topic><topic>Kaolin</topic><topic>kaolin waste</topic><topic>Kaolinite</topic><topic>sed rocks, sediments</topic><topic>Sedimentary petrology</topic><topic>sediments</topic><topic>sheet silicates</topic><topic>silicates</topic><topic>Sodalite</topic><topic>sodalite group</topic><topic>solid waste</topic><topic>South America</topic><topic>Sulfates</topic><topic>Synthesis</topic><topic>waste disposal</topic><topic>Wastes</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Maia, Ana Aurea B</creatorcontrib><creatorcontrib>Neves, Roberto F</creatorcontrib><creatorcontrib>Angelica, Romulo S</creatorcontrib><creatorcontrib>Pollmann, Herbert</creatorcontrib><collection>CrossRef</collection><collection>Water Resources Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Ceramic Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Clay minerals</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Maia, Ana Aurea B</au><au>Neves, Roberto F</au><au>Angelica, Romulo S</au><au>Pollmann, Herbert</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Synthesis of sodalite from Brazilian kaolin wastes</atitle><jtitle>Clay minerals</jtitle><date>2015-12</date><risdate>2015</risdate><volume>50</volume><issue>5</issue><spage>663</spage><epage>675</epage><pages>663-675</pages><issn>0009-8558</issn><eissn>1471-8030</eissn><abstract>Kaolin wastes from the Capim and Jari regions (Brazil) were used to produce sodalite under the same conditions used in the Bayer process, in order to control its formation when necessary. Of the two kaolin source materials, the kaolinite from the Jari region was more reactive in the synthesis of sodalite, which is attributed to the low degree of structural order of this clay mineral which increased its reactivity. At a temperature of 150°C and with a Na/Al ratio of 2, although the kaolinite did not react completely, sodalite was the primary reaction product. An increase in the temperature to 200°C provoked the complete reaction of the kaolinite only for the products in which carbonate and sulfate were used. With a Na/Al ratio >2 and for both of the temperatures, the kaolinite reacted completely to form sodalite.</abstract><pub>Mineralogical Society</pub><doi>10.1180/claymin.2015.050.5.09</doi><tpages>13</tpages></addata></record> |
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| language | eng |
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| source | Cambridge University Press Journals Complete |
| subjects | Brazil Capim Brazil Carbonates clastic sediments clay mineralogy Clay minerals experimental studies framework silicates Jari Brazil Kaolin kaolin waste Kaolinite sed rocks, sediments Sedimentary petrology sediments sheet silicates silicates Sodalite sodalite group solid waste South America Sulfates Synthesis waste disposal Wastes |
| title | Synthesis of sodalite from Brazilian kaolin wastes |
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