What is Imperial Smelting Furnace?
The Imperial Smelting Furnace Process (loS. F.) was originally developed as a new method of produc- ing zinc, but as experience grew, it became increas- ingly obvious that in addition to its main task of zinc production it could also smelt lead. The production of bulk zinc-lead concentrates specifically for loS.
What are the reagents used in imperial smelting process to extract zinc?
Blast furnace process (Imperial Smelting Process) L. J. Derham proposed using a spray of molten lead droplets to rapidly cool and absorb the zinc vapour, despite the high concentration of carbon dioxide. The process starts by charging solid sinter and heated coke into the top of the blast furnace.
What is the purposes of sintering lead concentrates?
The main goals of sintering are 1) produce hard oxide lump; 2) remove sulphur; 3) produce strong SO2 for acid plant.
Which are is used to extract zinc?
The most commonly available ore used in the extraction of Zinc is called Zinc Blende also known as Zinc Sulphide (ZnS). Historically extraction of zinc has been more difficult than extraction of other metals because at temperatures where metals such as iron typically begins to melt, zinc is a gas.
Why the zinc produced in the furnace is a gas?
Under the conditions in the furnace zinc is a vapour (gas), whereas lead is produced as a liquid by a similar series of reactions. The zinc vapour is carried into the condenser in a stream of carbon monoxide and carbon dioxide gases (at about 1300 K) and condensed by adsorption in a spray of liquid lead.
Where is smelting used?
Smelting is an energy-intensive process used to refine an ore into usable metal. Most ore deposits contain metals in the reacted or combined form.
Which metal is not present in German silver?
(i) German silver is an alloy of silver, copper and zinc. (ii) There is no zinc in brass.
What is the cost of zinc per kg?
On the Multi Commodity Exchange, zinc contracts for the September delivery traded higher by Rs 1.35, or 0.54 per cent, to Rs 252.75 per kg with a business turnover of 1,281 lots.
What kind of materials are used in the smelting process?
As a first st age of project, the chos en regulat ion ch aracteri stics of ISF drivi ng are pr esented. Key wor ds: Imperial Smelting Process, ISF, lead, zinc, coke. mounting problems cau sed by the declining supply of traditional raw materials. Therefore, waste materials have increased their share in production.
Which is a dvantage of the zinc smelting process?
1. Process description pyrometallurgical continuous zinc winning pr ocess [2]. Beside traditional raw materials as lead steelmaking processes. In this reason, the simultaneous production of lead metal is an a dvantage of the process, because the assay of most of the recycling materials sho ws beside zinc also lead.
Which is the only zinc smelting furnace in Europe?
This person is not on ResearchGate, or hasn’t claimed this research yet. The shaft furnace for simultaneous production of zinc and lead (ISF) which currently works in Miasteczko Slaskie in Poland, is the only one furnace operating in Europe according to Imperial Smelting Process.
How is the processing time of a smelting furnace determined?
Silica is added at each matte addition. The processing time of each blowing stage is determined by the occurring reaction, the amount of reacting sulphide in matte and the air input rate with the degree of oxygen enrichment and efficiency of oxygen usage.