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95/05410 Surface textural changes during reaction of CaCO3 crystals with SO2 and O2 (air).2. Large crystal faces, 670–1070 K

Publisher
Elsevier Science
Year
1995
Weight
208 KB
Volume
36
Category
Article
ISSN
0140-6701

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Surface textural changes during reaction
Surface textural changes during reaction of CaCO3 crystals with SO2 and O2 (air). 1. Small crystals, 670–1070 K
✍ D. Carl Anderson; Peter Anderson; Andrew K. Galwey 📂 Article 📅 1995 🏛 Elsevier Science 🌐 English ⚖ 948 KB

The significant changes of surface texture in CaCO, crystallites due to reaction in an equimolar SO,-O2 mixture were examined by scanning electron microscopy. Surface modifications were extensive above 870 K, which is close to the temperature of CaCO, dissociation and of CaSO, oxidation. It appears

Surface textural changes during reaction
Surface textural changes during reaction of CaCO3 crystals with SO2 and O2 (air). 3. In presence of coal combustion, 870–920 K
✍ D. Carl Anderson; Andrew K. Galwey 📂 Article 📅 1995 🏛 Elsevier Science 🌐 English ⚖ 719 KB

The combustion of sulfur-containing coal particles on a calcium carbonate crystal results in retexturing of a neighbouring CaC03 (100) face. The structural modifications developed at the CaCO, crystal surface show similarities to those found after reaction of calcite in SO, and O2 (air). It is concl