دورية أكاديمية
Sedimentation and rheological behavior of reactive and non-reactive magnesium hydroxide pulps for industrial spray dryer processing
| العنوان: | Sedimentation and rheological behavior of reactive and non-reactive magnesium hydroxide pulps for industrial spray dryer processing |
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| المؤلفون: | E. C. Campos, D. H. S. Chaves, C. M. F. Santos, S. D. F. Rocha, V. S. Birchal |
| المصدر: | Cerâmica, Vol 69, Iss 389, Pp 39-47 (2023) |
| بيانات النشر: | Associação Brasileira de Cerâmica, 2023. |
| سنة النشر: | 2023 |
| المجموعة: | LCC:Engineering (General). Civil engineering (General) |
| مصطلحات موضوعية: | physical-chemical characterization, rheology, sedimentation, stability, structural particle arrangements, Engineering (General). Civil engineering (General), TA1-2040 |
| الوصف: | Abstract Two different reactive concentrated magnesium hydroxide (HM) pulps, produced in a lab reactor mill, and a synthetic and non-reactive HM-pulp, for comparative analyses, have been prepared and studied. Sodium polyacrylate was selected as a dispersant for improving the HM pulp fluidity, with concentrations varying from 0.42% to 2.0% on a dry basis. The two reactive pulps differed from each other mainly by the impurity level and for both, a residual MgO amount was detected, implying that the hydration reaction could proceed. Results (with and without dispersant) confirmed the formation of particle clusters as HM concentration rose until a critical value, above which the pulp behaved as a solid. Reactive HM-pulps with high impurities may represent a limiting factor in the drying operation. Among all HM-pulps studied, the purest reactive pulp with 1% dispersant presented the best flow behavior making this reactive pulp the most suitable to be tested in a pilot spray dryer. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English Portuguese |
| تدمد: | 1678-4553 0366-6913 |
| Relation: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132023000100039&lng=en&tlng=en; http://www.scielo.br/pdf/ce/v69n389/1678-4553-ce-69-389-39.pdf; https://doaj.org/toc/1678-4553 |
| DOI: | 10.1590/0366-69132023693893411 |
| URL الوصول: | https://doaj.org/article/fd7563f57cc24f6e8271ad58b8f9d146 |
| رقم الأكسشن: | edsdoj.fd7563f57cc24f6e8271ad58b8f9d146 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 16784553 03666913 |
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| DOI: | 10.1590/0366-69132023693893411 |