Optimization of nanostructured/nano sized rice husk ash preparation
The objective of the study is developing a procedure for production and characterization of rice husk ash (RHA). The effects of rice husk (RH) amount, burning/cooling conditions combined with stirring on producing of RHA with amorphous silica, highest SiO2, lowest loss on ignition (LOI), uniform par...
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| Language: | English |
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University of Baghdad, College of Science for Women
2020-09-01
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| Series: | مجلة بغداد للعلوم |
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| Online Access: | http://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/3835 |
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| author | Medhat Mostafa Hamdy Salah Amro B. Saddek Nabila Shehata |
| author_facet | Medhat Mostafa Hamdy Salah Amro B. Saddek Nabila Shehata |
| author_sort | Medhat Mostafa |
| collection | DOAJ |
| description | The objective of the study is developing a procedure for production and characterization of rice husk ash (RHA). The effects of rice husk (RH) amount, burning/cooling conditions combined with stirring on producing of RHA with amorphous silica, highest SiO2, lowest loss on ignition (LOI), uniform particle shape distribution and nano structured size have been studied. It is concluded that the best amount is 20 g RH in 125 ml evaporating dish Porcelain with burning for 2 h at temperature 700 °C combined with cooling three times during burning to produce RHA with amorphous silica, SiO2 90.78% and LOI 1.73%. On the other hand, cooling and stirring times affect the variation of nano structured size and particle shape distribution. However, no crystalline phases were found in RHA in all cases. Results proved that the Attritor ball mill was more suitable than vibration disk mill for pulverizing nano structured RHA with 50% of particle size (D50) lower than 45 mm and 99 % of particle size (D99) lower than 144 mm to nanosized RHA with D50 lower than 36 nm and D99 lower than 57 nm by grinding time 8.16 min to every 1 g RHA without changes in morphousity of silica. |
| format | Article |
| id | doaj-art-42f208e52f7c4650ba1d0caac61a6bb5 |
| institution | Matheson Library |
| issn | 2078-8665 2411-7986 |
| language | English |
| publishDate | 2020-09-01 |
| publisher | University of Baghdad, College of Science for Women |
| record_format | Article |
| series | مجلة بغداد للعلوم |
| spelling | doaj-art-42f208e52f7c4650ba1d0caac61a6bb52025-08-02T06:25:58ZengUniversity of Baghdad, College of Science for Womenمجلة بغداد للعلوم2078-86652411-79862020-09-01173(Suppl.)10.21123/bsj.2020.17.3(Suppl.).0953Optimization of nanostructured/nano sized rice husk ash preparationMedhat Mostafa0Hamdy Salah1Amro B. Saddek2Nabila Shehata3Assiut Cement Company, CEMEX EgyptMinia White Cement Plant, Heidelberg Cement GroupFaculty of Engineering, Beni-Suef UniversityFaculty of Postgraduate studies for Advanced Science, Beni-Suef UniversityThe objective of the study is developing a procedure for production and characterization of rice husk ash (RHA). The effects of rice husk (RH) amount, burning/cooling conditions combined with stirring on producing of RHA with amorphous silica, highest SiO2, lowest loss on ignition (LOI), uniform particle shape distribution and nano structured size have been studied. It is concluded that the best amount is 20 g RH in 125 ml evaporating dish Porcelain with burning for 2 h at temperature 700 °C combined with cooling three times during burning to produce RHA with amorphous silica, SiO2 90.78% and LOI 1.73%. On the other hand, cooling and stirring times affect the variation of nano structured size and particle shape distribution. However, no crystalline phases were found in RHA in all cases. Results proved that the Attritor ball mill was more suitable than vibration disk mill for pulverizing nano structured RHA with 50% of particle size (D50) lower than 45 mm and 99 % of particle size (D99) lower than 144 mm to nanosized RHA with D50 lower than 36 nm and D99 lower than 57 nm by grinding time 8.16 min to every 1 g RHA without changes in morphousity of silica.http://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/3835Grinding, Nano Structured, Nano Sized, Optimization, Rice Husk Ash |
| spellingShingle | Medhat Mostafa Hamdy Salah Amro B. Saddek Nabila Shehata Optimization of nanostructured/nano sized rice husk ash preparation مجلة بغداد للعلوم Grinding, Nano Structured, Nano Sized, Optimization, Rice Husk Ash |
| title | Optimization of nanostructured/nano sized rice husk ash preparation |
| title_full | Optimization of nanostructured/nano sized rice husk ash preparation |
| title_fullStr | Optimization of nanostructured/nano sized rice husk ash preparation |
| title_full_unstemmed | Optimization of nanostructured/nano sized rice husk ash preparation |
| title_short | Optimization of nanostructured/nano sized rice husk ash preparation |
| title_sort | optimization of nanostructured nano sized rice husk ash preparation |
| topic | Grinding, Nano Structured, Nano Sized, Optimization, Rice Husk Ash |
| url | http://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/3835 |
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