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Sulphuric Acid on the WebTM Technical Manual DKL Engineering, Inc.

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Sulphuric Acid on the Web

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Handbook of Sulphuric Acid Manufacturing
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Preface
Contents
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Sulphuric Acid Decolourization
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Preface
Table of Contents

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Introduction

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Preface
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Sulphuric Acid Plant Specifications
 

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Acid Plant Database   October 6, 2016

Owner Boliden Odda AS

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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 

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Pictures   Boliden Odda 3.jpg (9203 bytes)  Boliden-Odda-4.jpg (842067 bytes) 

Boliden-Odda-Jarles-Vines.jpg (90187 bytes) 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 October 6, 2016 - Boliden has agreed to sell the aluminium fluoride operations at the Norwegian zinc smelter, Odda, to the Italian firm Fluorsid S.p.A.  The divestment refers to the standalone Noralf operations which comprise the manufacture and sale of aluminium fluoride and are located at the Odda zinc smelter. Aluminium fluoride, which is used in the manufacturing of aluminium, is produced in a process using large quantities of sulphuric acid – a by-product of the zinc process.  The purchase price of EUR 12.5 m will be paid in cash. The transaction is scheduled for completion during the fourth quarter.  A long-term agreement was simultaneously signed regarding the sale of sulphuric acid to Fluorsid.  Fluorsid was established in 1969 and is the world leader in the market of inorganic fluorochemicals for the aluminium industry, with an annual capacity of over 100,000 tonnes of aluminium fluoride and synthetic cryolite.  “The divestment is in line with Boliden’s strategy of increasing its focus on the core zinc operations at Odda, and expanding production to 200 ktonnes of zinc per year from Q2 2017. We believe the transaction is positive for the development of Noralf which now will be part of a world leading group within the aluminium fluoride business. The deal also secures the sale of half of Odda’s sulphuric acid,” says Kerstin Konradsson, President Boliden Smelters. Odda’s aluminium fluoride operations have posted an average annual turnover and operating profit of just over SEK 300 m and SEK 17 m, respectively, over the past five years. The sale will yield a capital gain of approximately SEK 60 m.

August 30, 2013 - Early Friday morning, August 30, Boliden's zinc smelter in Odda experienced problems with an acid meter in the sulphuric acid plant.  As a result, large amounts of white smoke spread in the area. According to the smelter's measurements, the smoke contained low concentrations of sulphuric acid and was not hazardous.  The sulphuric acid plant has now been shut down, and is expected to be up and running again after the weekend. The zinc production is partly affected by the incident, and is also estimated to return to full capacity after the weekend.  On, Monday September 2, the production was up to full capacity again.

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