TY - JOUR
T1 - Effect of the pH with NaOH additives on the precipitation process of ferronickel leaching products from mini blast furnaces for NiSO4·6H2O synthesis
AU - Ananda, Muhammad Bagas
AU - Vidathya, I. Gusti Ngurah Dhias
AU - Ramadhani, Mavindra
AU - Abdul, Fakhreza
AU - Pintowantoro, Sungging
N1 - Publisher Copyright:
© 2023, Indian Academy of Sciences.
PY - 2024/3
Y1 - 2024/3
N2 - The global interest in utilizing nickel for electric vehicle (EV) batteries has garnered significant attention. In the form of NiSO4·6H2O crystals, nickel is a crucial raw material for fabricating battery cathodes in EVs. These crystals are commonly derived from the hydrometallurgical method. This study investigated the pH effect on the precipitation method to determine the optimal pH range that yields the highest nickel recovery for synthesizing NiSO4.6H2O crystals. The source material, nickel pig iron (NPI), obtained from a mini blast furnace using the pyrometallurgical method, was employed in the leaching process. Sodium hydroxide (NaOH) was used as the precipitating agent during precipitation. The results demonstrated that the best-performing variable was pH 4, resulting in a nickel content of 1913 ppm and a nickel recovery percentage of 53.24%. In order to ensure successful commercialization, future research should focus on reducing Na2SO4 impurities through an optimized washing process, aiming for higher-grade crystals with enhanced product specifications.
AB - The global interest in utilizing nickel for electric vehicle (EV) batteries has garnered significant attention. In the form of NiSO4·6H2O crystals, nickel is a crucial raw material for fabricating battery cathodes in EVs. These crystals are commonly derived from the hydrometallurgical method. This study investigated the pH effect on the precipitation method to determine the optimal pH range that yields the highest nickel recovery for synthesizing NiSO4.6H2O crystals. The source material, nickel pig iron (NPI), obtained from a mini blast furnace using the pyrometallurgical method, was employed in the leaching process. Sodium hydroxide (NaOH) was used as the precipitating agent during precipitation. The results demonstrated that the best-performing variable was pH 4, resulting in a nickel content of 1913 ppm and a nickel recovery percentage of 53.24%. In order to ensure successful commercialization, future research should focus on reducing Na2SO4 impurities through an optimized washing process, aiming for higher-grade crystals with enhanced product specifications.
KW - Ferronickel
KW - NiSO·6HO crystal
KW - pH
KW - precipitation
UR - http://www.scopus.com/inward/record.url?scp=85179941904&partnerID=8YFLogxK
U2 - 10.1007/s12046-023-02377-9
DO - 10.1007/s12046-023-02377-9
M3 - Article
AN - SCOPUS:85179941904
SN - 0256-2499
VL - 49
JO - Sadhana - Academy Proceedings in Engineering Sciences
JF - Sadhana - Academy Proceedings in Engineering Sciences
IS - 1
M1 - 8
ER -