Mechanism of Influence of Organic Impurity on Crystallization of Sodium Sulfate
| Autor: | Nannan Su, Haijiao Lu, Hongxun Hao, Jingjing Huang, Yongli Wang, Yang Li, Meng He, Yan Xiao, Yajing Lou |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
chemistry.chemical_classification
General Chemical Engineering Inorganic chemistry Nucleation Salt (chemistry) 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Industrial and Manufacturing Engineering 0104 chemical sciences law.invention Crystal chemistry.chemical_compound chemistry Impurity law Sodium sulfate Phenol Crystallization Solubility 0210 nano-technology |
| Zdroj: | Industrial & Engineering Chemistry Research. 57:1705-1713 |
| ISSN: | 1520-5045 0888-5885 |
| DOI: | 10.1021/acs.iecr.7b04625 |
| Popis: | To promote the development of crystallization technology for recovering salt from high salinity wastewater, the effect of organic impurity on crystallization of sodium sulfate was investigated by using phenol as a representative organic impurity. The effect of phenol on crystallization thermodynamics of sodium sulfate was evaluated by measuring solubility data of sodium sulfate in water in the presence of phenol. It was found that the existence of phenol could suppress the solubility of sodium sulfate in water. The effect of organic impurity on crystal nucleation was performed by measuring the metastable zone width (MSZW) and induction time of sodium sulfate. Two models (self-consistent Nývlt-like equation and Classical 3D nucleation theory) were used to analyze the experimental data. It was found that Classical 3D nucleation theory (3D CNT) can better explain the effect of phenol on nucleation. From both MSZW data and induction time data, it was found that the existence of phenol will apparently increase... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|