Purification of Nickel Sulfate by Batch Cooling Crystallization

Bing Han; Jusri Hassanein; Oluf Bøckman; Benjamin Wilson; Mari Lundström; Marjatta Louhi-Kultanen

Purification of Nickel Sulfate by Batch Cooling Crystallization

Bing Han, Jusri Hassanein, Oluf Bøckman, Benjamin Wilson, Mari Lundström, Marjatta Louhi-Kultanen

Tutkimustuotos: Artikkeli kirjassa/konferenssijulkaisussa › Konferenssiesitys › Scientific

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.

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	https://labsms.univ-rouen.fr/en/content/biwic2018

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title = "Purification of Nickel Sulfate by Batch Cooling Crystallization",

abstract = "Cooling crystallization was successfully carried out in a batch cooling crystallizerfrom 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.",

author = "Bing Han and Jusri Hassanein and Oluf B{\o}ckman and Benjamin Wilson and Mari Lundstr{\"o}m and Marjatta Louhi-Kultanen",

year = "2018",

language = "English",

pages = "30--35",

note = "International Workshop on Industrial Crystallization, BIWIC ; Conference date: 05-09-2018 Through 07-09-2018",

url = "https://labsms.univ-rouen.fr/en/content/biwic2018",

}

Purification of Nickel Sulfate by Batch Cooling Crystallization. / Han, Bing; Hassanein, Jusri; Bøckman, Oluf; Wilson, Benjamin ; Lundström, Mari ; Louhi-Kultanen, Marjatta.

2018. 30-35 Julkaisun esittämispaikka: International Workshop on Industrial Crystallization, Rouen, Ranska.

Tutkimustuotos: Artikkeli kirjassa/konferenssijulkaisussa › Konferenssiesitys › Scientific

TY - CONF

T1 - Purification of Nickel Sulfate by Batch Cooling Crystallization

AU - Han, Bing

AU - Hassanein, Jusri

AU - Bøckman, Oluf

AU - Wilson, Benjamin

AU - Lundström, Mari

AU - Louhi-Kultanen, Marjatta

N1 - Conference code: 25

PY - 2018

Y1 - 2018

N2 - Cooling crystallization was successfully carried out in a batch cooling crystallizerfrom 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.

AB - Cooling crystallization was successfully carried out in a batch cooling crystallizerfrom 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.

M3 - Paper

SP - 30

EP - 35

T2 - International Workshop on Industrial Crystallization

Y2 - 5 September 2018 through 7 September 2018

ER -

Purification of Nickel Sulfate by Batch Cooling Crystallization

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Workshop

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