Publication: Magyar Közlöny
Issue: MK-2007-40 (Year: 2007, Number: 40)
Era: 2004-2010
Section: 
Paragraph Index: 293

44. Primary zinc production is carried out by means of roast-leach electrowin technology. Pressure leaching may be an alternative to roasting and may be considered as a BAT for new plants depending on the concentrate characteristics. Emissions from pyrometallurgical zinc production in Imperial Smelting (IS) furnaces can be minimized by using a double bell furnace top and cleaning with high-efficiency scrubbers, efficient evacuation and cleaning of gases from slag and lead casting, and thorough cleaning (<10 mg/m3) of the CO-rich furnace off-gases.

Source: https://magyarkozlony.hu/hivatalos-lapok/27e75a8cd1ad627908b248500ebbcc5bfa21e53f/dokumentumok/08a63e1b22fa9bd1e1deda098c61d7cbd099a770/letoltes