Outotec signed two contracts worth a combined $47 million for detail engineering and delivery of gold pressure oxidation technology with the Russian Petropavlovsk Group of Companies as the group develops a gold mine in the Amur region of Russia's Far East, Outotec said Monday.

The new deals complement contracts disclosed in May and July 2011. The majority of the contract value is booked in Outotec's fourth quarter order intake with a small part being booked in the third quarter.

The first additional order includes detail designing of the Malomir and Pioneer gold concentrators and Pokrovskiy autoclave and hydrometallurgical plant in the Russian Far East. This project will be completed in August 2012.

The second order includes technology delivery consisting of chemical preparation and dosing systems, reactors and agitators, thickening and filtration equipment and high pressure titanium piping with auxiliaries for the designed Pokrovskiy autoclave and hydrometallurgical plant. The equipment will be delivered at the end of 2012. 

These orders complement Outotec's delivery of the main equipment for a pressure oxidation process for the Petropavlovsk gold project previously announced. The overall value of the contracts with the Petropavlovsk Group disclosed in 2011 is approximately $124 million.