AngloGold Ashanti - Nova Lima

Acid Plant Database March 10, 2011

Owner	AngloGold Ashanti Brasil Mineração
Location	Situated near the city of Nova Lima Brazil
Background	1834 - Morro Velho - Saint John Del Rey Mining Company 1960 - Unibanco obtains control of company 1975 - Anglo American and Grupo Bozano Simonsen become the major shareholder 1999 - Morro Velho becomes part of AngloGold 2004 - AngloGold begins association with Ashanti
Website	www.anglogoldashanti.com
Plant	Planta Industrial do Queiroz
Plant	Plant No. 1	Plant No. 2
Coordinates*	19° 58' 3" S, 43° 50' 1.5" W	19° 58' 3" S, 43° 50' 0" W
Type of Plant	Metallurgical	Metallurgical
Gas Source	-	-
Plant Capacity	400 MTPD	400 MTPD
SA/DA	3/1 DA Conversion Efficiency: 99.85%	-
Emissions	Acid Mist: < 0.05 kg/t	-
Status	Operating	-
Year Built	1985	2007
Technology	-	-
Contractor	-	-
Remarks	-	Plant is virtually a duplicate of Plant No. 1
Pictures
General	-
References	-
News	August 11, 2005 - Promon www.promon.com.br has signed a contract with AngloGold Ashanti Mineração Ltda. to supply design, procurement, construction and assembly services for expansion of its sulfuric acid and ustulation (sulfide burning) plant as part of the Cuiabá Gold Mining Expansion Project. The new plant’s production capacity will be equivalent to 400 metric tons of sulfuric acid per day. It will be implemented at Nova Lima, Minas Gerais. Work began under the EPC contract in April and is scheduled to reach completion in November 2006. Promon brings to the project its successful experience with a sulfuric acid unit implemented for Mineração Serra Fortaleza. Although there are differences between the latter and the project for AngloGold Ashanti, this prior experience has facilitated development of the partnership for the Nova Lima project. More than 100 professionals including both staff of Promon and contractors are working on the sulfuric acid plant project, which will involve some 400 people in the construction and assembly stage. The solution is important to AngloGold Ashanti, which will be able to convert the sulfur oxide (SOx) produced as a byproduct of gold mining into sulfuric acid for sale in the marketplace, averting its release as a gas into the atmosphere. AngloGold Ashanti sells sulfuric acid mainly to manufacturers of paper pulp, fertilizer and chemicals. AngloGold Ashanti’s Cuiabá Expansion Project involves expansion of an existing unit located 15 kilometers away from the present mining site and calls for production of up to 6 tons of gold per year. Concentrate with a high gold and sulfur content will be transported by aerial ropeway to the treatment plant. AngloGold Ashanti plans to invest about US$36 million in the Cuiabá Expansion Project.

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.