Role of magnesium chloride in the performance and phase composition of lead glass sludge foam
•Lead glass sludge (LGS) was prepared with no foaming agent addition.•Adding MgCl2 caused a notable retardation in foaming process at all temperatures.•MgCl2 enhanced LGS crystallization by the formation of diopside and cristobalite.•A significant decrease in Pb-leaching rate was achieved by adding...
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| Veröffentlicht in: | Materials letters 2022-08, Vol.320, p.132325, Article 132325 |
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| container_title | Materials letters |
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| creator | Abdel-Gawwad, Hamdy A. Mohammed, Aya H. Arif, Mohamed A. Shoukry, Hamada Abadel, Aref A. Al-Kroom, Hussein Sikora, Pawel Abd Elrahman, Mohamed |
| description | •Lead glass sludge (LGS) was prepared with no foaming agent addition.•Adding MgCl2 caused a notable retardation in foaming process at all temperatures.•MgCl2 enhanced LGS crystallization by the formation of diopside and cristobalite.•A significant decrease in Pb-leaching rate was achieved by adding MgCl2.
In the present work, different MgCl2 dosages were admixed with lead glass sludge (LGS) to evaluate their effects on the performance of the produced LGS-foam at different elevated temperatures. The results revealed that adding MgCl2 caused a negative impact on the bloating process, including porosity and volume expansion reduction, as well as bulk density and thermal conductivity increment. This was associated with the high affinity of magnesium for enhancing the crystallization of LGS through the formation of diopside and cristobalite minerals. Moreover, the speed up of softening temperature of LGS using MgCl2 makes LGS completely softened before full dissociation of CaCO3, decreasing gas entrapping inside the softened LGS. Nevertheless, the use of MgCl2 decreased the free Pb inside LGS through thermal/chlorination process. |
| doi_str_mv | 10.1016/j.matlet.2022.132325 |
| format | Article |
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In the present work, different MgCl2 dosages were admixed with lead glass sludge (LGS) to evaluate their effects on the performance of the produced LGS-foam at different elevated temperatures. The results revealed that adding MgCl2 caused a negative impact on the bloating process, including porosity and volume expansion reduction, as well as bulk density and thermal conductivity increment. This was associated with the high affinity of magnesium for enhancing the crystallization of LGS through the formation of diopside and cristobalite minerals. Moreover, the speed up of softening temperature of LGS using MgCl2 makes LGS completely softened before full dissociation of CaCO3, decreasing gas entrapping inside the softened LGS. Nevertheless, the use of MgCl2 decreased the free Pb inside LGS through thermal/chlorination process.</description><identifier>ISSN: 0167-577X</identifier><identifier>EISSN: 1873-4979</identifier><identifier>DOI: 10.1016/j.matlet.2022.132325</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Bulk density ; Calcium carbonate ; Calcium magnesium silicates ; Cristobalite ; Crystal growth ; Crystallization ; Diopside ; High temperature ; Lead glass ; Lead glass sludge ; Magnesium chloride ; Materials science ; Phase composition ; Porous materials ; Sludge ; Thermal conductivity ; X-ray technique</subject><ispartof>Materials letters, 2022-08, Vol.320, p.132325, Article 132325</ispartof><rights>2022 Elsevier B.V.</rights><rights>Copyright Elsevier BV Aug 1, 2022</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c334t-41085de8bfaa5617402b87aa8e8ce20adeb58d6330d2da049f203ea4ab1ed2ab3</citedby><cites>FETCH-LOGICAL-c334t-41085de8bfaa5617402b87aa8e8ce20adeb58d6330d2da049f203ea4ab1ed2ab3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.matlet.2022.132325$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3536,27903,27904,45974</link.rule.ids></links><search><creatorcontrib>Abdel-Gawwad, Hamdy A.</creatorcontrib><creatorcontrib>Mohammed, Aya H.</creatorcontrib><creatorcontrib>Arif, Mohamed A.</creatorcontrib><creatorcontrib>Shoukry, Hamada</creatorcontrib><creatorcontrib>Abadel, Aref A.</creatorcontrib><creatorcontrib>Al-Kroom, Hussein</creatorcontrib><creatorcontrib>Sikora, Pawel</creatorcontrib><creatorcontrib>Abd Elrahman, Mohamed</creatorcontrib><title>Role of magnesium chloride in the performance and phase composition of lead glass sludge foam</title><title>Materials letters</title><description>•Lead glass sludge (LGS) was prepared with no foaming agent addition.•Adding MgCl2 caused a notable retardation in foaming process at all temperatures.•MgCl2 enhanced LGS crystallization by the formation of diopside and cristobalite.•A significant decrease in Pb-leaching rate was achieved by adding MgCl2.
In the present work, different MgCl2 dosages were admixed with lead glass sludge (LGS) to evaluate their effects on the performance of the produced LGS-foam at different elevated temperatures. The results revealed that adding MgCl2 caused a negative impact on the bloating process, including porosity and volume expansion reduction, as well as bulk density and thermal conductivity increment. This was associated with the high affinity of magnesium for enhancing the crystallization of LGS through the formation of diopside and cristobalite minerals. Moreover, the speed up of softening temperature of LGS using MgCl2 makes LGS completely softened before full dissociation of CaCO3, decreasing gas entrapping inside the softened LGS. Nevertheless, the use of MgCl2 decreased the free Pb inside LGS through thermal/chlorination process.</description><subject>Bulk density</subject><subject>Calcium carbonate</subject><subject>Calcium magnesium silicates</subject><subject>Cristobalite</subject><subject>Crystal growth</subject><subject>Crystallization</subject><subject>Diopside</subject><subject>High temperature</subject><subject>Lead glass</subject><subject>Lead glass sludge</subject><subject>Magnesium chloride</subject><subject>Materials science</subject><subject>Phase composition</subject><subject>Porous materials</subject><subject>Sludge</subject><subject>Thermal conductivity</subject><subject>X-ray technique</subject><issn>0167-577X</issn><issn>1873-4979</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><recordid>eNp9kMtKxDAUhoMoOI6-gYuA69Zc2iazEUS8wYAgCm4knDanMyltU5NW8O3tUNeuzua_nY-QS85Sznhx3aQdjC2OqWBCpFwKKfIjsuJaySTbqM0xWc0yleRKfZySsxgbxli2YdmKfL76FqmvaQe7HqObOlrtWx-cRep6Ou6RDhhqHzroK6TQWzrsISKtfDf46Ebn-4O9RbB010KMNLaT3SGtPXTn5KSGNuLF312T94f7t7unZPvy-Hx3u00qKbMxyTjTuUVd1gB5wVXGRKkVgEZdoWBgscy1LaRkVliYl9eCSYQMSo5WQCnX5GrJHYL_mjCOpvFT6OdKIwqt9NyS57MqW1RV8DEGrM0QXAfhx3BmDiBNYxaQ5gDSLCBn281iw_mDb4fBxMrhTMO6gNVorHf_B_wC_1N_CA</recordid><startdate>20220801</startdate><enddate>20220801</enddate><creator>Abdel-Gawwad, Hamdy A.</creator><creator>Mohammed, Aya H.</creator><creator>Arif, Mohamed A.</creator><creator>Shoukry, Hamada</creator><creator>Abadel, Aref A.</creator><creator>Al-Kroom, Hussein</creator><creator>Sikora, Pawel</creator><creator>Abd Elrahman, Mohamed</creator><general>Elsevier B.V</general><general>Elsevier BV</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20220801</creationdate><title>Role of magnesium chloride in the performance and phase composition of lead glass sludge foam</title><author>Abdel-Gawwad, Hamdy A. ; Mohammed, Aya H. ; Arif, Mohamed A. ; Shoukry, Hamada ; Abadel, Aref A. ; Al-Kroom, Hussein ; Sikora, Pawel ; Abd Elrahman, Mohamed</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c334t-41085de8bfaa5617402b87aa8e8ce20adeb58d6330d2da049f203ea4ab1ed2ab3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><topic>Bulk density</topic><topic>Calcium carbonate</topic><topic>Calcium magnesium silicates</topic><topic>Cristobalite</topic><topic>Crystal growth</topic><topic>Crystallization</topic><topic>Diopside</topic><topic>High temperature</topic><topic>Lead glass</topic><topic>Lead glass sludge</topic><topic>Magnesium chloride</topic><topic>Materials science</topic><topic>Phase composition</topic><topic>Porous materials</topic><topic>Sludge</topic><topic>Thermal conductivity</topic><topic>X-ray technique</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Abdel-Gawwad, Hamdy A.</creatorcontrib><creatorcontrib>Mohammed, Aya H.</creatorcontrib><creatorcontrib>Arif, Mohamed A.</creatorcontrib><creatorcontrib>Shoukry, Hamada</creatorcontrib><creatorcontrib>Abadel, Aref A.</creatorcontrib><creatorcontrib>Al-Kroom, Hussein</creatorcontrib><creatorcontrib>Sikora, Pawel</creatorcontrib><creatorcontrib>Abd Elrahman, Mohamed</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Materials letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Abdel-Gawwad, Hamdy A.</au><au>Mohammed, Aya H.</au><au>Arif, Mohamed A.</au><au>Shoukry, Hamada</au><au>Abadel, Aref A.</au><au>Al-Kroom, Hussein</au><au>Sikora, Pawel</au><au>Abd Elrahman, Mohamed</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Role of magnesium chloride in the performance and phase composition of lead glass sludge foam</atitle><jtitle>Materials letters</jtitle><date>2022-08-01</date><risdate>2022</risdate><volume>320</volume><spage>132325</spage><pages>132325-</pages><artnum>132325</artnum><issn>0167-577X</issn><eissn>1873-4979</eissn><abstract>•Lead glass sludge (LGS) was prepared with no foaming agent addition.•Adding MgCl2 caused a notable retardation in foaming process at all temperatures.•MgCl2 enhanced LGS crystallization by the formation of diopside and cristobalite.•A significant decrease in Pb-leaching rate was achieved by adding MgCl2.
In the present work, different MgCl2 dosages were admixed with lead glass sludge (LGS) to evaluate their effects on the performance of the produced LGS-foam at different elevated temperatures. The results revealed that adding MgCl2 caused a negative impact on the bloating process, including porosity and volume expansion reduction, as well as bulk density and thermal conductivity increment. This was associated with the high affinity of magnesium for enhancing the crystallization of LGS through the formation of diopside and cristobalite minerals. Moreover, the speed up of softening temperature of LGS using MgCl2 makes LGS completely softened before full dissociation of CaCO3, decreasing gas entrapping inside the softened LGS. Nevertheless, the use of MgCl2 decreased the free Pb inside LGS through thermal/chlorination process.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/j.matlet.2022.132325</doi></addata></record> |
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| identifier | ISSN: 0167-577X |
| ispartof | Materials letters, 2022-08, Vol.320, p.132325, Article 132325 |
| issn | 0167-577X 1873-4979 |
| language | eng |
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| source | Elsevier ScienceDirect Journals |
| subjects | Bulk density Calcium carbonate Calcium magnesium silicates Cristobalite Crystal growth Crystallization Diopside High temperature Lead glass Lead glass sludge Magnesium chloride Materials science Phase composition Porous materials Sludge Thermal conductivity X-ray technique |
| title | Role of magnesium chloride in the performance and phase composition of lead glass sludge foam |
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