Proceedings of the International Conference on Science and Technology (ICST 2018)

Effects of malonic acid on calcium carbonate crystalline phases and morphology

Authors
Stefanus Muryanto, S. Sutanti, E. Supriyo, W.A. Putranto
Corresponding Author
Stefanus Muryanto
Available Online December 2018.
DOI
https://doi.org/10.2991/icst-18.2018.64How to use a DOI?
Keywords
CaCO3, crystal phases, malonic acid, scale control
Abstract
Calcium carbonate (CaCO3) crystals are in much demand as low-priced fillers and brightening agents. For example, the pulp and paper industries use CaCO3 as fillers to enhance opacity, brightness, smoothness and printability. Such enhancement is regulated by the crystal properties: morphology, crystalline phases, size, size distribution, and aggregation capabilities. In contrast, scale formation of CaCO3 is encountered in many industrial processes, which results in reduction of heat and mass transfer. To a large extent, the CaCO3 scaling is also dictated by the above mentioned properties. Detailed understanding of alteration of CaCO3 properties is therefore of prime importance. This paper reports CaCO3 precipitation conducted by drop-wise addition of Na2CO3 solution into solution of CaCl2 with stirring. The precipitation was done with and without malonic acid. Precipitates were filtered, centrifuged, and oven dried overnight at 60oC. The samples were characterized using SEM, XRD, and FTIR. In all cases amorphous calcium carbonate precipitated first and with time it transformed into calcite via vaterite and aragonite. It was found that malonic acid was able induce vaterite growth in solution. Higher amounts of malonic acid (ppm amounts) resulted in more vaterite phase alongside calcite. Both calcite and vaterite morphology changed with malonic acid in the solution as compared with pure precipitation with the acid
Open Access
This is an open access article distributed under the CC BY-NC license.

Download article (PDF)

Volume Title
Proceedings of the International Conference on Science and Technology (ICST 2018)
Series
Atlantis Highlights in Engineering
Publication Date
December 2018
ISBN
978-94-6252-650-1
ISSN
2589-4943
DOI
https://doi.org/10.2991/icst-18.2018.64How to use a DOI?
Open Access
This is an open access article distributed under the CC BY-NC license.

Cite this article

TY  - CONF
AU  - Stefanus Muryanto
AU  - S. Sutanti
AU  - E. Supriyo
AU  - W.A. Putranto
PY  - 2018/12
DA  - 2018/12
TI  - Effects of malonic acid on calcium carbonate crystalline phases and morphology
BT  - Proceedings of the International Conference on Science and Technology (ICST 2018)
PB  - Atlantis Press
SP  - 301
EP  - 305
SN  - 2589-4943
UR  - https://doi.org/10.2991/icst-18.2018.64
DO  - https://doi.org/10.2991/icst-18.2018.64
ID  - Muryanto2018/12
ER  -