| 학회 | 한국화학공학회 |
| 학술대회 | 2006년 봄 (04/20 ~ 04/21, 대구 인터불고 호텔) |
| 권호 | 12권 1호, p.173 |
| 발표분야 | 미립자공학 |
| 제목 | A Study on the Characteristics of Calcium Carbonate in Aqueous Ethanol and Isopropanol Solutions |
| 초록 | Precipitated calcium carbonate (PCC) was synthesized employing Ca(OH)2 as feed and H2O, ethanol and isopropanol as solvents. For each solvent system, synthesized PCC was characterized through XRD, SEM and electrical conductivities. In the aqueous solution of less than 40 mol% ethanol, PCC is all calcite; therefore, water has dominant effect as the solvent. On the other hand, in the solution of more than 60 mol% ethanol, the solvent acts as the pure ethanol and calcite, aragonite and vaterite can be precipitated. In case of isopropanol additive system, calcite, which was the most stable form of PCC, was dominant. When calcium carbonate was formed in the low concentration of isopropanol (less than 2mol %), it appeared as the cubic type. However, the high concentration of isopropanol (more than 4mol %) brought colloidal calcium carbonate. |
| 저자 | 박주원1, 고상진1, 박경민1, 김정환2, 박진구2, 안지환2, 한 춘1 |
| 소속 | 1광운대, 2한국지질자원(연) |
| 키워드 | Carbonation; Precipitation; Calcium carbonate; Ethanol; Isopropanol |
| 원문파일 | 초록 보기 |
