Evaluation of the Processing Opportunity of Galvanic Production Sludges with Nickel Recovery

2018 ◽  
Vol 284 ◽  
pp. 790-794 ◽  
Author(s):  
M.V. Boshnyak ◽  
A.R. Galimianov ◽  
O.B. Kolmachikhina
Keyword(s):  
Material Composition ◽  
Nickel Recovery ◽  
Ferrous Metals ◽  
Chemical Phase ◽  
Galvanic Production ◽  
Non Ferrous Metals ◽  
And Storage

Recycling and storage of galvanic production sludges requires significant costs and they are strictly regulated by environmental documents. At the same time, the sludges contain a significant amount of non-ferrous metals, including nickel, which are preferable to extract. To evaluate the extracting nickel possibility from the sludges and selecting a method for their processing, it is necessary to study the chemical, phase, fractional material composition.

Leaching of Non-Ferrous Metals from Galvanic Sludges

2019 ◽  
Vol 946 ◽  
pp. 591-595 ◽  
Author(s):  
O.Yu. Makovskaya ◽  
K.S. Kostromin
Keyword(s):  
Sulfuric Acid ◽  
Environmental Hazard ◽  
Hydrometallurgical Process ◽  
Disposal Area ◽  
Ferrous Metals ◽  
Galvanic Production ◽  
Non Ferrous Metals

The problem of processing slimes of galvanic production, formed as a result of neutralization of technological solutions and wastewater containing heavy non-ferrous metals is considered. At present, sludges are transported to disposal area and are not used in any way. Typically, such sludges contain significant amounts of chromium and nickel, which creates environmental hazard. Investigated sludge of Dimitrovgrad Automobile Units Plant (Russia) contains up to 6.6% Ni and up to 7,4% Cr. The hydrometallurgical process is proposed to treatment of these sludges. Solutions of sulfuric acid, ammoniaс chloride and Trilon B were used as lixiviants. It is shown that when using a solution of sulfuric acid with pH=1,5, extraction of up to 93,3% Cu, 70,2 Ni, 90,3 Zn is achieved.

scholarly journals Hydrometallurgical Technology for Processing of Galvanic Sludges

2020 ◽  
Author(s):  
O.Yu. Makovskaya ◽  
K.S. Kostromin
Keyword(s):  
Sulfuric Acid ◽  
Exchange Resin ◽  
Ion Exchange Resin ◽  
Nickel Ion ◽  
Disposal Area ◽  
Nickel Recovery ◽  
Sorption Concentration ◽  
Ferrous Metals ◽  
Galvanic Sludge ◽  
Non Ferrous Metals

The problem of processing galvanic sludges, formed as a result of neutralization of technological solutions and wastewater containing heavy non-ferrous metals is considered in this study. At present, sludges are transported to disposal area and are not used in any way. Typically, such sludges contain significant amounts of chromium and nickel, which creates environmental hazard. Investigated sludge contains up to 6,6% Ni and up to 7,4% Cr. The hydrometallurgical process to treatment of these sludges is carried out. Solutions of sulfuric acid and ammonia were used as lixiviants. It is shown that when using a solution of sulfuric acid with pH=1,5, extraction of up to 93,3% Cu, 70,2 Ni, 90,3 Zn is achieved. For selective nickel recovery sorption concentration by Lewatit TP207 is proposed. Keywords: Galvanic sludge, hydrometallurgy leaching, nickel, ion-exchange resin

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