Abstrakti
Cooling crystallization was successfully carried out in a batch cooling crystallizer
from impure acidic solutions to recover nickel as nickel sulfate salt with three different cooling rates. The compositions of the solutions included impurities of sodium, magnesium, chloride and sulfuric acid in order to mimic industrial electrowinning process solutions. The results show that nickel sulfate hexahydrate (NiSO4·6H2O) mainly crystallized and its solubility and purity decreased with the increase in mass ratio of chloride to sulfate. Cooling rates did not have significant influence of crystal purity, however, it did affect the filter cake moisture. Lower moisture can be obtained with lower cooling rate.
from impure acidic solutions to recover nickel as nickel sulfate salt with three different cooling rates. The compositions of the solutions included impurities of sodium, magnesium, chloride and sulfuric acid in order to mimic industrial electrowinning process solutions. The results show that nickel sulfate hexahydrate (NiSO4·6H2O) mainly crystallized and its solubility and purity decreased with the increase in mass ratio of chloride to sulfate. Cooling rates did not have significant influence of crystal purity, however, it did affect the filter cake moisture. Lower moisture can be obtained with lower cooling rate.
| Alkuperäiskieli | Englanti |
|---|---|
| Sivut | 30-35 |
| Sivumäärä | 6 |
| Tila | Julkaistu - 2018 |
| OKM-julkaisutyyppi | Ei oikeutettu |
| Tapahtuma | International Workshop on Industrial Crystallization - University of Rouen Normandy , Rouen, Ranska Kesto: 5 syyskuuta 2018 → 7 syyskuuta 2018 Konferenssinumero: 25 https://labsms.univ-rouen.fr/en/content/biwic2018 |
Workshop
| Workshop | International Workshop on Industrial Crystallization |
|---|---|
| Lyhennettä | BIWIC |
| Maa | Ranska |
| Kaupunki | Rouen |
| Ajanjakso | 05/09/2018 → 07/09/2018 |
| www-osoite |
Sormenjälki Sukella tutkimusaiheisiin 'Purification of Nickel Sulfate by Batch Cooling Crystallization'. Ne muodostavat yhdessä ainutlaatuisen sormenjäljen.
Laitteet
Raaka-aineiden tutkimusinfrastruktuuri
Maarit Karppinen (Manager)
Kemian tekniikan korkeakouluLaitteistot/tilat: Facility
Siteeraa tätä
Han, B., Hassanein, J., Bøckman, O., Wilson, B., Lundström, M., & Louhi-Kultanen, M. (2018). Purification of Nickel Sulfate by Batch Cooling Crystallization. 30-35. Julkaisun esittämispaikka: International Workshop on Industrial Crystallization, Rouen, Ranska.