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A simple method for preparing chelated calcium based on the black liquor generated by the pulp and paper industry.
- Source :
- Chemical Speciation & Bioavailability; Dec2019, Vol. 31 Issue 1, p56-59, 4p
- Publication Year :
- 2019
-
Abstract
- A simple method for preparing chelated calcium from black liquor produced in the paper industry was studied. Various factors influencing the chelation rate of Ca<superscript>2+</superscript> were studied, including the system pH, reaction temperature, reaction time, reaction solution ratio. The optimum reaction conditions are as follows: the system pH, reaction temperature, reaction solution ratio (V(CaCl<subscript>2</subscript>):m (Black liquor)) and time were 5.6, 25°C, 1:20 and 60 min, respectively. The maximum Ca<superscript>2+</superscript> chelation rate was 88.75%. The characteristics of chelated calcium fertilizer in black liquor were studied by Fourier transform infrared, scanning electron microscope. The results indicated that the CaCl<subscript>2</subscript> could be chelated by the black liquor from paper-making industry, and showed a high chelating rate. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 09542299
- Volume :
- 31
- Issue :
- 1
- Database :
- Complementary Index
- Journal :
- Chemical Speciation & Bioavailability
- Publication Type :
- Academic Journal
- Accession number :
- 140940038
- Full Text :
- https://doi.org/10.1080/26395940.2018.1563501