The zinc foil is transferred to the electrolysis site after production and directly into the furnace.
Furnaces today work more with natural gas, and several examples of induction furnaces are available in the country. When the foil directly enters the furnace, the direct burning of the burner burns some of it and oxidizes it.
After the complete loading of the furnace and melting of the sheets, the molding is started and at the end of each charging of the furnace a quantity of soil (the same burned foil) is accumulated, which is carried out by the melting out of the melting and so-called slagging, and at the end of the next Approximate cooling of the slag furnace is pulled out
The extracted soil contains a considerable amount of melt that is completely separated from the sieve after the cooling and the remainder of the soil is sold as a sublime slag (about 75 to 80 percent).
This product is usually supplied as one to one-and-a-half tons of jumbo bags.
Slag analysis has a direct correlation with the sheet analysis on the production, and almost all of the elements in the zinc foil in slag are also seen.
Major impurities are iron (Fe), cadmium (Cd), copper (Cu), lead (Pb), and 1 to 4 percent of chlorine (Cl) in the soil.
Zinc oxide production from zinc slag:
Slag is on the raw material of ZnO2 production (analysis 98 to 98.5), and the more pure the slag, the zinc oxide will be produced in a higher quality
It is also used to produce zinc sulfate, zinc carbonate, and the like, which must be very cautious about licorice with sulfuric acid, and the lychee must be open in the open. The reason for this reaction is the presence of very fine metal in the slag and its reaction with sulfuric acid and toxic gas H2S.
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