Determination of calcium and magnesium in bioleaching solution of uranium ore by optimized EDTA method
- 10.2991/ic3me-15.2015.106How to use a DOI?
- uranium ore, bioleaching solution, mixed indicator, calcium, magnesium
This paper determined calcium and magnesium in bioleaching solution of uranium ore by optimized EDTA method. This method used acid chrome blue K-naphthol green B mixed indicator after adding reducing agent hydroxylamine hydrochloride, masking agent triethanolamine and masking agent L-cysteine. This method required the concentration of calcium and magnesium more than 0.50g/L, respectively. Thus, coexisting ions did not interfere with the determination, and the titration end point was obvious. The results show that the standard addition recovery rate of calcium and magnesium is 99.15%~101.40% and 99.26%~101.18%, respectively. The relative standard deviation of calcium and magnesium is less than 3.5% with good accuracy and precision. This method is simple and fast to determine calcium and magnesium in bioleaching solution of uranium ore, and the results are accurate and reliable.
- © 2015, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Chengying Zhou AU - Yihanna Hu AU - Liulu Cai AU - Wei Qu PY - 2015/08 DA - 2015/08 TI - Determination of calcium and magnesium in bioleaching solution of uranium ore by optimized EDTA method BT - Proceedings of the 3rd International Conference on Material, Mechanical and Manufacturing Engineering PB - Atlantis Press SP - 535 EP - 538 SN - 2352-5401 UR - https://doi.org/10.2991/ic3me-15.2015.106 DO - 10.2991/ic3me-15.2015.106 ID - Zhou2015/08 ER -