Abstract
In this study, the complex influence of the preliminary calcination temperature of refractory clay raw materials and mineralizing oxide additives on phase formation, microstructure and properties of aluminosilicate proppants was researched. The morphology structure and phase composition of specimens were investigated by scanning electron microscopy (SEM) and X-ray diffraction (XRD). The results show that the effectiveness on the addition of 3d-transition element oxides (Fe2O3 and MnO2) and alkaline and alkaline earth oxides (Na2O, MgO, CaO) and B2O3 to the sintering process of samples based on kaolin depends on the temperature of preliminary kaolin calcination (900–1100 °C) and temperature sample sintering (1350–1450°C). Based on the effectiveness of the influence on aluminosilicate ceramic sintering at the temperature range of 1400–1450°C, the recommended additives can be sequentially arranged as follows: Fe2O3 > MgO > MnO2 > Na2O > B2O3 > CaO. The thermal activity scheme for each group of mineralizer additives depending on the temperature conditions of the consolidation process has been proposed in this study. The use of mineralizing additives with kaolin calcined at a temperature range of 980–1100 °C produces lightweight aluminosilicate proppants with bulk density of up to 1.50 g/cm3 at sintering calcination of 1400–1450 °C, which can endure destructive pressures up to 52 MPa.
| Original language | English |
|---|---|
| Article number | 105335 |
| Journal | Applied Clay Science |
| Volume | 183 |
| DOIs | |
| Publication status | Published - 15 Dec 2019 |
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Keywords
- Kaolin
- Microstructure
- Mineralizer
- Proppant
- Sintering
ASJC Scopus subject areas
- Geology
- Geochemistry and Petrology
Cite this
Effect of thermochemical activation of clay raw materials on phase formation, microstructure and properties of aluminosilicate proppants. / Vakalova, T. V.; Reshetova, A. A.; Revva, I. B.; Rusinov, P. G.; Balamygin, D. I.
In: Applied Clay Science, Vol. 183, 105335, 15.12.2019.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Effect of thermochemical activation of clay raw materials on phase formation, microstructure and properties of aluminosilicate proppants
AU - Vakalova, T. V.
AU - Reshetova, A. A.
AU - Revva, I. B.
AU - Rusinov, P. G.
AU - Balamygin, D. I.
PY - 2019/12/15
Y1 - 2019/12/15
N2 - In this study, the complex influence of the preliminary calcination temperature of refractory clay raw materials and mineralizing oxide additives on phase formation, microstructure and properties of aluminosilicate proppants was researched. The morphology structure and phase composition of specimens were investigated by scanning electron microscopy (SEM) and X-ray diffraction (XRD). The results show that the effectiveness on the addition of 3d-transition element oxides (Fe2O3 and MnO2) and alkaline and alkaline earth oxides (Na2O, MgO, CaO) and B2O3 to the sintering process of samples based on kaolin depends on the temperature of preliminary kaolin calcination (900–1100 °C) and temperature sample sintering (1350–1450°C). Based on the effectiveness of the influence on aluminosilicate ceramic sintering at the temperature range of 1400–1450°C, the recommended additives can be sequentially arranged as follows: Fe2O3 > MgO > MnO2 > Na2O > B2O3 > CaO. The thermal activity scheme for each group of mineralizer additives depending on the temperature conditions of the consolidation process has been proposed in this study. The use of mineralizing additives with kaolin calcined at a temperature range of 980–1100 °C produces lightweight aluminosilicate proppants with bulk density of up to 1.50 g/cm3 at sintering calcination of 1400–1450 °C, which can endure destructive pressures up to 52 MPa.
AB - In this study, the complex influence of the preliminary calcination temperature of refractory clay raw materials and mineralizing oxide additives on phase formation, microstructure and properties of aluminosilicate proppants was researched. The morphology structure and phase composition of specimens were investigated by scanning electron microscopy (SEM) and X-ray diffraction (XRD). The results show that the effectiveness on the addition of 3d-transition element oxides (Fe2O3 and MnO2) and alkaline and alkaline earth oxides (Na2O, MgO, CaO) and B2O3 to the sintering process of samples based on kaolin depends on the temperature of preliminary kaolin calcination (900–1100 °C) and temperature sample sintering (1350–1450°C). Based on the effectiveness of the influence on aluminosilicate ceramic sintering at the temperature range of 1400–1450°C, the recommended additives can be sequentially arranged as follows: Fe2O3 > MgO > MnO2 > Na2O > B2O3 > CaO. The thermal activity scheme for each group of mineralizer additives depending on the temperature conditions of the consolidation process has been proposed in this study. The use of mineralizing additives with kaolin calcined at a temperature range of 980–1100 °C produces lightweight aluminosilicate proppants with bulk density of up to 1.50 g/cm3 at sintering calcination of 1400–1450 °C, which can endure destructive pressures up to 52 MPa.
KW - Kaolin
KW - Microstructure
KW - Mineralizer
KW - Proppant
KW - Sintering
UR - http://www.scopus.com/inward/record.url?scp=85074416465&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85074416465&partnerID=8YFLogxK
U2 - 10.1016/j.clay.2019.105335
DO - 10.1016/j.clay.2019.105335
M3 - Article
AN - SCOPUS:85074416465
VL - 183
JO - Applied Clay Science
JF - Applied Clay Science
SN - 0169-1317
M1 - 105335
ER -