Objective
THIS RESEARCH WILL ALLOW TO ADOPT THE IMPERIAL SMELTING FURNACES OF THE EC TO TREAT ALL COMPLEX ZINC/COPPER CONCENTRATES. THE ECONOMIC BENEFIT WILL RESULT FROM THE POSSIBILITY OF TREATMENT OF COMPLEX CONCENTRATES (AVOIDING THE SEPARATION OF ZINC FROM COPPER) AND FROM THE RECOVERY OF COPPER.
The imperial smelting furnace (ISF) is an efficient means of producing zinc and lead from lower grade materials both of primary and secondary origin.
Since its initial development changes in concentrate mixes have increased the copper input into the furnace. This creates problems after the recovery of the zinc in the condenser and after the furnace is tapped.
These problems will need to be solved if the ISF is to be used in preference to electrolysis plants.
The copper at the top of the furnace originates mainly from carryover of fine materials charged and is transferred therefore not causing too many problems if the physical quality of the charge is high enough.
The ISF can not be economically operated with a continuous lead tapping since these new investments are heavy and do not bring improvements. In particular, the slag zinc content remains in average above those of furnaces running with a discontinous tapping.
However it has been shown that the ISF can accept during short periods, amounts of copper in their input corresponding to a content up to 12% in the lead buillon.
It is possible, using a special tapping procedure to decopperize continuously by quenching the raw lead tapped from the furnace. The copper dross is then a powdery material, and can be handled easily.
The kinetics of copper separation from lead is increased by a higher temperature, but the current technology can not accept it, because the materials used do not resist corrosion by lead at 700 to 800 C.
In consideration of this, a new scheme has been proposed for comprises a slow cooling in the 700 to 800 C temperature range in order to impose high demixition rates followed by quenching at 400 C of the lead bullion in order to succeed in the drossing/drying step, or a separation of the copper rich phase and then a quenching in order to produce a fractional product. This step is necessary for the development of new materials for lead strring at 800 C.
THE IMPERIAL SMELTING PROCESS, USED IN DIFFERENT COUNTRIES IN EUROPE CANNOT TREAT ORES WITH MORE THAN 1-2% COPPER. THE AIM OF THIS RESEARCH IS TO MAKE ALTERATION TO IMPERIAL SMELTING FURNACES IN ORDER TO IMPROVE THEIR FLEXIBILITY AS REGARD COPPER. IN THIS WAY ZINC-COPPER CONCENTRATES RESULTING FROM COMPLEX ORE BODIES COULD BE ECONOMICALLY TREATED.
THE RESEARCH IS DIVIDED IN THE FOLLOWING STEPS:
- MINERALOGICAL STUDIES OF CALCINES, ZINC-COPPER COMPOUNDS, ETC...
- INFLUENCE OF INCREASING COPPER CONTENT ON CRUDE ZINC COMPOSITION
- STUDIES CONCERNING THE BOTTOM OF THE FURNACE
- LEAD-COPPER BEHAVIOUR
- COPPER AND LEAD SEPARATION
- USE OF ELECTRIC FURNACE TO SEPARATE COPPER-LEAD.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
- natural sciences chemical sciences electrochemistry electrolysis
- natural sciences chemical sciences inorganic chemistry transition metals
You need to log in or register to use this function
We are sorry... an unexpected error occurred during execution.
You need to be authenticated. Your session might have expired.
Thank you for your feedback. You will soon receive an email to confirm the submission. If you have selected to be notified about the reporting status, you will also be contacted when the reporting status will change.
Programme(s)
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Topic(s)
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Data not available
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Call for proposal
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Data not available
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Funding Scheme
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Coordinator
78193 Trappes
France
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.