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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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Sulphuric Acid Plant Specifications
 

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Acid Plant Database  January 4, 2012

Owner Aurubis

Aurubis-Logo.jpg (18984 bytes)
Cumerio-Logo.gif (3568 bytes)

Location

BG - 2070
Pirdop
Bulgaria

Background

Formerly
- Georgi Damyanov Copper Combine
- MDK Copper Smelter and Refinery
1997 - Acquired by Umicore (Union Minere)
2005 - Umicore Copper demerged from Umicore Group to form Cumerio 
2009 -
Cumerio Med JSCo.

Website www.aurubis.com
www.cumerio.com
Plant

Pirdop Smelter

Plant No. 1 Plant No. 2
Coordinates

42° 43' 8" N, 24° 9' 30" E

42° 43' 10" N, 24° 9' 26" E
Type of Plant Metallurgical Metallurgical
Gas Source

Copper
Outotec (Outokumpu) Flash Furnace
Peirce-Smith Converters

Copper
Outotec (Outokumpu) Flash Furnace
Peirce-Smith Converters

Plant Capacity 1940 MTPD
66,600 to 160,000 Nm3/h, 7.4 to 11.3% SO
2
1940 MTPD
120,000 to 160,000 Nm3/h, 7.4 to 11.3% SO
2
SA/DA 3/1 DA, 2.6 kg SO2/MT 3/1 DA, 99.80% conversion
Emissions - SO2: 0.032%
SO3/Acid Mist: < 40 mg/Nm3
Status Operating Operating
Year Built 1981 1987
Technology - -
Contractor -

Civil Works - Geotechmin ood

Remarks 1997 - 780 MTPD, 120,000 Nm3/h, 4-6.3% SO2, 4 SA, 98.5% conversion
2002 - Plant revamped by Outotec
        - single to double absorption
        - revamp wet gas cleaning section
        - sodium silcate addition system
        - revamp WESP's
1997 - 1050 MTPD, 120,000 Nm3/h, 7-9% SO2
2003 - Plant revamp by Outotec
        - 150,000 Nm
3/h, 7 to 9% SO2
        - new 1st washing tower
        - new drying tower
        - new blower
        - revamp converter
        - replace electric preheater with diesel fired
2007 - new intermediate and final absorbers
Pictures       Cumerio - Pirdop 4.jpg (47853 bytes)  Cumerio - Pirdop 5.jpg (54314 bytes)  Cumerio - Pirdop 6.jpg (47385 bytes)  Cumerio - Pirdop 7.jpg (40762 bytes)  Cumerio-Pirdop-8.jpg (59583 bytes)  Aurubis-Pirdop-9.jpg (25124 bytes)
General Cumerio Med in Pirdop transforms concentrates with 25 -35 % copper content into anodes (99% Cu). The annual smelting capacity is around 240,000 tons. Part of the anodes is transported by train to the Cumerio plant in Olen, Belgium as feed for the electrolytic refinery. Cumerio Med also produces 60,000 tons of copper cathodes for the regional markets.
References -
News

December 21, 2011 - Jacobs Engineering Group Inc. announced Tuesday that its Chemetics unit in Pickering, Ontario, Canada, was awarded a design and fabrication contract by Aurubis Bulgaria AD for two proprietary designed sulfuric acid coolers to be installed in its acid plant in Pirdop, Bulgaria.  The work involves the design and fabrication of sulfuric acid coolers. Jacobs worked with Aurubis engineering staff to develop a solution that would allow optimal performance in both distinctly different operating modes.

June 21, 2011 - Aurubis, the largest copper producer in Europe, announced its new investment programme for environmental protection and increasing productivity - "Aurubis Bulgaria 2014".  The project was launched with a symbolic groundbreaking ceremony by Prime Minister of the Republic of Bulgaria Boyko Borisov and the Deputy Prime Minister and Minister of Finance Simeon Dyankov, Minister of Transport Ivaylo Moskovski and His Excellency Matthias Höpfner, German ambassador together with the hosts Peter Willbrandt, Member of the Executive Board of Aurubis AG and Nicolas Treand, Executive Director of Aurubis Bulgaria, in the presence of local and national authorities, diplomats, metallurgy business representatives, the NGO sector etc.  "By providing the funds for this new project, Aurubis Group has put its confidence in the potential of the plant of Aurubis Bulgaria. We are very satisfied with the performance in the last years and we would like to make a step further to rank this plant in the first five smelters worldwide. We are as well confident of the sustainable value of our investment and appreciate the support of the Bulgarian government", states Mr. Peter Willbrandt, Member of the Executive Board of Aurubis AG.  The total investment of the project is EUR 44.2 million and 60% of this amount involves measures for environmental protection with a total capital expenditure of more than EUR 26 million.  The scope of the project, which will be implemented in the next three years, consists of two main focuses - productivity increase and improvement of the environmental performance in the plant to meet also future EU regulations. The main goal is together with productivity improvements in new systems to maintain the best parameters and complete control in terms of gases and SO2 emissions. One of the main activities in the new project,  is construction of an additional gas treatment plant, through which will be further contained and treated exhaust all processes gases that will provide a final consistent solution in this area.  Concrete measures in both directions are:  the expansion element includes installation of additional equipment, improvement of the performance and reliability of the existing production facilities, continuous improvement and optimisation of the production processes; the environmental part includes installation of an additional off-gas treatment plant, capturing of additional sources, changing the internal processes and implementation of best practices in operation.  "At Aurubis Bulgaria requirements and standards are in full compliance with the national and European legislation, because we are following the best available techniques for environmental protection. The new project will put focus on further reduction of emissions. We also stay active social position, which is in the name of protection and the well-being of our employees and the local citizens. I thank to our Board and share holders for the confidence they show to our Bulgarian site." stated Nicolas Treand, Executive Director of Aurubis Bulgaria.  After the privatisation of the copper production site near Pirdop, over € 400 million has been invested in modernising the processes and improving environmental performance. The most significant implemented projects in this area are a secondary gas cleaning system (2008), the construction of a new refinery (2008) and expansion of the slag flotation plant (2010).

December 16, 2008 - Norddeutsche Affinerie AG and Cumerio nv/sa now wish to present the combination to the outside world. The new enlarged company will be called Aurubis. „The name represents all that unites us and makes us strong, our common passion for copper“, said Chief Executive Officer, Dr Bernd Drouven, today in Hamburg.   „Aurubis“ is derived from Latin and means „red gold“. „The name puts in a nutshell what copper symbolizes for us and our customers – a metal of extraordinary value. It is the oldest metal in the world and has always been the cornerstone for progress and civilization. This holds true even today: mobile phones, computers, electricity – nothing would function without copper. This special meaning makes us work with passion on our product. To us, copper not only glitters like gold, it is just as valuable“, continued Drouven.  Norddeutsche Affinerie AG’s well-known logo, the blue triangle, will not be changed. It has a long tradition and originally showed three metallurgical tools. It has been modernised several times in the course of the company’s 142 year history.  The official renaming under German commercial law will not take place until after the official resolution is passed at the Annual General Meeting on 26 February 2009. Until then the shares will also still be listed as Norddeutsche Affinerie AG.  The CEO assured that the new name will express the greater international importance of the company. At the same time it is also a commitment to the employees and the current production sites.

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