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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
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Sulphuric Acid Plant Specifications
 

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Acid Plant Database January 6, 2011

Owner AngloBase Namibia Pty. Ltd. - Skorpion Zinc

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Location Situated 25km north of Rosh Pinah in southern Namibia
Background -
Website www.skorpionzinc.com.na
Plant -
Coordinates* 27° 49' 31" S, 16° 36' 58" E
Type of Plant Sulphur Burning
Gas Source Elemental Sulphur
Plant Capacity -
SA/DA -
Status -
Year Built 2003
Technology -
Contractor -
Remarks The sulphuric acid plant is a sulphur burning plant, producing two types of acid i.e. industrial and chemically pure acid. The waste heat generated from the acid plant is used to produce steam and keep the Refinery at temperature. There are also two 14MW electrode boilers to produce steam if the acid plant is down at any time.
Pictures  
General

Skorpion Zinc is a world-first in zinc extraction and production. We produce 150,000 tons of special high grade (SHG) zinc per annum, which is shipped to our world-wide markets through the southern port of Luderitz .

The Skorpion Zinc Mine and Refinery is a green field development. Skorpion Zinc has progressed from exploration though various project development stages to become a full-scale mining and refining operation. Although the Skorpion Zinc ore body was first discovered in the seventies, the deposit was not mined at that time as there were metallurgical problems associated with the treatment of the unconventional ore, and the ore body itself was considered too small to be economic in markets prevailing at the time. Reunion Mining Plc entered into an agreement with the Anglo American Corporation in 1997, in terms of which they could earn a percentage interest in the deposit for conducting further drilling, geological work and producing a "bankable" study to develop a mine by September 2000. Reunion did this work, solved the metallurgical problems, piloted the process and produced the bankable study by the end of 1998.

The ore body delineated by Reunion Mining drilling comprised 19,5 million tonnes of ore at an average zinc grade of 10,1%. In 1999 the offshore arm of Anglo American, Minorco, purchased the entire shareholding of Reunion Mining plc to obtain 100% Anglo ownership of the Skorpion deposit. In the same year Anglo merged with Minorco and the resulting company was listed in London as Anglo American plc. Anglo American Plc (AA plc) then bought Reunion Mining's interest in the ore body and, following additional drilling and bulk sampling for a pilot plant, the go-ahead for the project was approved by the board of AA plc in September 2000 at a capital cost of US$454 million. Construction of the world class Skorpion Zinc mine and refinery commenced in January 2001.

Reference -
News December 3, 2010 - Sterlite Industries (India) Limited (“Sterlite”) today announces the completion of the acquisition of the Skorpion Zinc Mine (“Skorpion”) in Namibia from Anglo American plc (“Anglo American”) for a cash consideration of approximately $707 million.  On 10 May 2010, Vedanta announced the acquisition of Anglo American’s Zinc Assets (“Anglo Zinc”) - for a total cash consideration of $1,338 million, on an attributable, debt and cash free basis. Anglo Zinc comprises the 100 per cent owned Skorpion mine in Namibia, the 100 per cent owned Lisheen mine in Ireland and the 74 per cent owned Black Mountain Mines, which includes the Black Mountain mine and Gamsberg project in South Africa.  Skorpion has been acquired by a subsidiary of Sterlite Infra Limited, itself a wholly owned subsidiary of Sterlite. It was intended that the acquisition of Anglo Zinc would be undertaken by Hindustan Zinc Limited (“HZL”), a subsidiary of Sterlite, subject to approval from the Indian Government as shareholder, which was not received within the contractual completion timeline for Skorpion. The acquisitions of the Lisheen mine and Black Mountain Mines are expected to be completed on schedule Anglo Zinc is an excellent operational and strategic fit with our existing business and will create significant long term value for shareholders. This acquisition will consolidate our position as the world’s largest integrated zinc - lead producer with significant reserves and resources of 478 million tonnes.  Commenting on the transaction, Anil Agarwal, Chairman said: "We are delighted to have completed the first phase of the acquisition of Anglo Zinc assets. Skorpion Zinc Mine is a high quality zinc asset and will complement our existing portfolio. We look forward to working with Skorpion’s team and remain committed to maintaining the highest standards of sustainability and exploring growth opportunities.”

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