Boliden Odda

Acid Plant Database September 10, 2011

Owner	Boliden Odda AS
Location	Odda Norway
Background	1924 - Norzink AS founded 1928 - Zinc production began 1964 - Boliden buys 50% stake in Norzink smelter 2001 - Rio Tinto and Boliden sell the Norzink zinc smelter in Norway to Outokumpu. Rio Tinto and Boliden each owned 50% 2003 - Boliden and Outokumpu have today entered into a final agreement whereby Boliden will acquire Outokumpu's mining and smelting operations within zinc and copper, and Outokumpu will acquire Boliden's Fabrication and Technology
Website	www.boliden.se
Plant	Zinc Plant	Lead Plant
Coordinates*	60° 5' 23" N, 6° 31' 57" E (site)	-
Type of Plant	Metallurgical	Metallurgical
Gas Source	Zinc Lurgi Fluid Bed Roasters: 37 m² + 55 m²	Lead Kaldo Flash Smelter
Hot Gas Cleaning	Waste Heat Boiler - Cyclones - Hot Electrostatic Precipitator	-
Wet Gas Cleaning	Venturi Scrubber - Star Coolers - Wet Electrostatic Precipitators - Hg Removal	-
Plant Capacity	-	-
SA/DA	-	-
Status	-	-
Year Built	-	-
Technology	-	-
Contractor	-	-
Remarks	1976 - Boliden-Norzink Hg removal system installed 1995 - New larger star coolers installed to reduce gas temperature from previous 30-35ºC to 20ºC. Cooling sea water temperature: 4-10ºC. Lower temperature to improve Hg removal by lowering Hg vapour pressure in Boliden-Norzink Hg removal system. Lead star coolers were selected over stainless steel heat exchangers because sea water is used for cooling and lead inhibits growth of organisms. Engineering by Hugo Petersen. Fabricated by Apparatebau Goslar. - Product Hg reduced from 0.4-0.8 ppm to < 0.3 ppm - New WESP installed - Particle: <1 mg/Nm³ @ 60,000 Nm³/h - Acid Mist: <15 mg/Nm³ - Boliden Etitube WESP: 91 tubes, 150 mm dia., 5 m long - Material: 254 SMO	-
Pictures	Photo Courtesy of Jarles Vines
General	The zinc plant Boliden Odda was established in 1924. The plant is situated on a peninsula, approximately 4 kilometers north of Odda. The main products are zinc and aluminum fluoride. Currently the annual capacity is 160,000 and 40,000 tonnes respectively, and the plant is one of the world's most cost-efficient zinc producers. In addition Boliden Odda also produces sulphuric acid. The zinc plant was modernized during 2003 and 2004, a EUR 88 million investment. Boliden Odda has its own ice-free port, which is used for receiving zinc concentrates and other raw materials and for shipping refined zinc and aluminum fluoride powder. More than 90 percent of the zinc produced at the Boliden Odda plant is exported, mainly to Scandinavia, the UK and other European countries. The aluminum fluoride powder is mainly sold to Norwegian aluminum smelters.
References	Målsnes, A. and Hauge, B., “Technical Innovations in the Gas Cleaning Section at Norzink’s Roaster No.2 and in the Vielle-Montagne Cellhouse No. 5”, Proceedings of an International Symposium on Zinc and Lead Processing, Calgary, Canada, August 16-19, 1998, pp. 613-626.
News	January 30, 2009 - The prevailing weak market situation is causing Boliden to implement a reduction in copper metal production at its smelters in Sweden and Finland in the first quarter. "This is an extreme situation that affects the whole industry, and it is hard to predict how the market is going to develop. The demand for copper and the by-product sulphuric acid is weak," says Svante Nilsson, SVP for Business Area Market. The reduction, which will be implemented with immediate effect, will see copper metal production cut by approximately 17,000 tonnes in the first quarter of 2009. 2001 - Rio Tinto and Boliden have completed the sale of the Norzink zinc smelter in Norway to Outokumpu for US$180 million cash. Rio Tinto and Boliden each owned 50% of Norzink.

MTPD - Metric Tonne per Day STPD - Short Ton per Day
MTPA - Metric Tonne per Annum STPA - Short Ton per Annum
SA - Single Absorption
DA - Double Absorption

* Coordinates can be used to locate plant on Google Earth


Sulphuric Acid on the Web^TM	Technical Manual	DKL Engineering, Inc.