Process for manufacturing high purity nickel chloride by recycli

Details Process for manufacturing high purity nickel chloride by recycli Process for manufacturing high purity nickel chloride by recycli

1997-07-24

1998-12-29

Nguyen, Ngoc-Yen

Chemistry of inorganic compounds

Halogen or compound thereof

Binary compound containing metal

4231501, 4231503, 4231505, C01G 5309

Patent

active

058536922

ABSTRACT:
A process for manufacturing nickel chloride is disclosed which is used as the raw material for manufacturing Zn--Ni coated steel plates, for electroless Ni plating industries, for electronic components, and for a high purity chemical additive Ni powder. That is, the invention discloses a process for manufacturing high purity nickel chloride (NiCl.sub.2) by utilizing a waste nickel anode which is obtained from an electroplating factory of a steel manufacturing plant. The process for manufacturing high purity nickel chloride includes the steps of: pre-treating a waste nickel anode to remove impurities adhered on the surface thereof; working the pre-treated waste nickel anode so as to provide an increased specific surface area; putting the worked waste nickel anode into an aqueous hydrochloric acid solution of 10-35% so as for the equivalence ratios of Ni, HCl and NiCl.sub.2 to be 1.0 or more, and dissolving the worked waste nickel anode at a reaction temperature of 20.degree.-80 C. so as to form an aqueous nickel chloride solution; passing the aqueous nickel chloride solution through a filter to remove insoluble materials; injecting an oxidizing gas such as air into an impurity treating tank with the pH level maintained at 2-5 so as to form Fe and Cr ions into a sludge, and carrying out a filtering; and adding an Ni powder in the amount of 0.1-2 g/l into the aqueous nickel chloride solution to remove heavy metal ions.

REFERENCES:
patent: 1044316 (1912-11-01), Wells
patent: 2946677 (1960-07-01), Shelton
patent: 3884681 (1975-05-01), Gandon
patent: 4131641 (1978-12-01), Brown et al.
patent: 4211765 (1980-07-01), Meyer et al.
patent: 4241031 (1980-12-01), Meyer et al.
patent: 5279641 (1994-01-01), Narisawa et al.
A. R. Burkin, "Extractive Metallurgy of Nickel", Society of Chemical Industry, Critical Reports on Applied Chemistry vol. 17, 1987, pp. 120-146 (No Month).

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