Effect of roasting with ammonium sulfate and sulfuric acid on the extraction of copper and cobalt from copper converter slag

Journal Article · Thu Aug 01 00:00:00 EDT 1991 · Separation Science and Technology; (United States)

DOI:https://doi.org/10.1080/01496399108050520· OSTI ID:5903152

Hamamci, C; Ziyadanogullari, B ^[1]

---

1. Univ. of Dicle, Diyarbakir (Turkey)

Copper converter slag, provided by Ergani Copper Co. of Etibank and containing 2.56% copper and 0.22% cobalt, was roasted with ammonium sulfate. The effects of such parameters as temperature (200-600C), duration of roasting (15-120 min), and amount of ammonium sulfate (0.5-2.5 times stoichiometric) have been studied. Under optimum conditions (slag size, {minus}100 mesh; stoichiometric requirement of ammonium sulfate; roasting temperature of 400 C for 60 min), the authors obtained 88% Cu and 67% Co by extraction. Similar studies were carried out with concentrated sulfuric acid. The influence of experimental variables such as roasting temperature (25-300C), roasting period (30-120 min), and amount of sulfuric acid (0.5-2 times stoichiometric) has been studied. Under atmospheric conditions, i.e., at 200C and a roasting period of 60 min with 1.5 times the stoichiometric amount of sulfuric acid, recoveries of copper and cobalt were 82 and 96% respectively.

• OSTI ID: 5903152
• Journal Information: Separation Science and Technology; (United States), Vol. 26:8; ISSN 0149-6395
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
COBALT
EXTRACTION
COPPER
SLAGS
MATERIALS RECOVERY
AMMONIUM SULFATES
CHEMICAL ANALYSIS
COMPARATIVE EVALUATIONS
EXPERIMENTAL DATA
HEAT TREATMENTS
HYDROMETALLURGY
PARAMETRIC ANALYSIS
STOICHIOMETRY
SULFURIC ACID
TEMPERATURE DEPENDENCE
TIME DEPENDENCE
AMMONIUM COMPOUNDS
DATA
ELEMENTS
EVALUATION
EXTRACTIVE METALLURGY
HYDROGEN COMPOUNDS
INFORMATION
INORGANIC ACIDS
MANAGEMENT
METALLURGY
METALS
NUMERICAL DATA
OXYGEN COMPOUNDS
PROCESSING
RECOVERY
SEPARATION PROCESSES
SULFATES
SULFUR COMPOUNDS
TRANSITION ELEMENTS
WASTE MANAGEMENT
WASTE PROCESSING
320305* - Energy Conservation
Consumption
& Utilization- Industrial & Agricultural Processes- Industrial Waste Management