Morphology and Kinetics of Growth of CaCO3 Precipitates Formed in Saline Water at 30°C
- Authors: Sui X.1, Wang B.1, Wu H.1
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Affiliations:
- Provincial Key Laboratory of Oil and Gas Chemical Technology, College of Chemistry and Chemical Engineering
- Issue: Vol 92, No 2 (2018)
- Pages: 304-309
- Section: Physical Chemistry of Solutions
- URL: https://journals.rcsi.science/0036-0244/article/view/169895
- DOI: https://doi.org/10.1134/S0036024418020279
- ID: 169895
Cite item
Abstract
The crystallization kinetics and morphology of CaCO3 crystals precipitated from the high salinity oilfield water were studied. The crystallization kinetics measurements show that nucleation and nuclei growth obey the first order reaction kinetics. The induction period of precipitation is extended in the high salinity solutions. Morphological studies show that impurity ions remain mostly in the solution phase instead of filling the CaCO3 crystal lattice. The morphology of CaCO3 precipitates can be changed from a smooth surface (calcite) to rough spheres (vaterite), and spindle rod bundles, or spherical, ellipsoid, flowers, plates and other shapes (aragonite).
About the authors
Xin Sui
Provincial Key Laboratory of Oil and Gas Chemical Technology, College of Chemistry and Chemical Engineering
Email: wangbaohui60@163.com
China, Daqing, 163318
Baohui Wang
Provincial Key Laboratory of Oil and Gas Chemical Technology, College of Chemistry and Chemical Engineering
Author for correspondence.
Email: wangbaohui60@163.com
China, Daqing, 163318
Haiming Wu
Provincial Key Laboratory of Oil and Gas Chemical Technology, College of Chemistry and Chemical Engineering
Email: wangbaohui60@163.com
China, Daqing, 163318