10 World of Mining Surface Underground 67 2015 No 1 Golpu s development Targeting the upper higher value portion of the ore body work during stage one will continue on optimising a second stage mine development stage two which will encompass the rest of the ore reserves The feasibility study for the first stage as well as the updated pre feasibility study PFS for the second stage of the pro ject is slated for completion by the end of calendar year 2015 Harmony Gold Mining CEO Graham Briggs said The updated pre feasibility study supports our view that Golpu is a spectacular ore body with a large copper component affordable and mineable The conclusion of the updated PFS is a major project milestone and has demonstrated the significant potential of this world class orebody which contains mineral resources of 20 million ounces of gold and 9 4 mill t of copper With the assistance of WorleyParsons as project consultant the Golpu project team has incorporated a total of 52 000 new drill core samples into the updated study The two proposed block caves in stage one have been designed to access about 40 of the contained metal gold and copper of the Golpu reserve with the remaining 60 of reserve being extracted by a future deeper block cave stage two Later the mining and processing infrastructure of stage one will be used to support development of the second part Stage one extracts 146 mill t at an average grade of 1 02 g t gold and 1 6 copper and the proposed start up production rate is 3 mill t as year mined from Block Cave 1 BC1 and 6 mill t a year from the deeper Block Cave 2 BC2 BC2 is situated about 1050 m below surface whereas BC1 is only around 425 m below surface Figure 3 and will produce 12 mill t of cave ore over a five year period mining technology com December 16 2014 Holcim Lafarge ver kaufen Zementwerke Die Fusion von Holcim und Lafarge zum weltweit größten Baustoffkonzern ist einen großen Schritt vorangekommen Die bei den Konzerne verkauften Firmenteile wie Zementwerke und Anlagen im Wert von 6 5 Mrd an den irischen Rivalen CRH und erfüllten damit Auflagen der Wettbe werbshüter CRH schiebt sich mit dem Zu kauf gemessen am Unternehmenswert auf Rang drei hinter die französische Saint Gobain und vor die mexikanische Cemex und die deutsche Heidelberg Cement HB v 9 2 2015 Shenhua Energy Sumitomo and Energy Resources to develop Tavan Tolgoi in Mongolia A Consortium of China s Shenhua En ergy Japan s Sumitomo and Mongolia s Energy Resources has won the tender to develop the Tavan Tolgoi deposit in Mon golia Figure 4 The consortium is said to have beat a bid from US based mining company Peabody Energy Mongolia s Government will retain full ownership of the mine which is claimed to be one of the world s largest untapped coking and thermal coal deposits situated in the Öm nögovi Province The latest bid winner will have to produce 30 mill t of coal annually at Tavan Tolgoi and deliver into at least two export markets Ulaanbaatar based Mongolian Mining s unit Energy Resourc es already mines coal at another site in the Tavan Tolgoi coal basin Recently in an effort to boost a flagging economy hit by falling commodity prices Mongolia has relaunched an international tender to develop the project The attempt is said to have attracted Mongolia Mining Peabody Energy and Japan s Itochu Located around 240 km north of the Chinese border Tavan Tolgoi has 7 4 bn t of coal reserves The mine is divided into six sections Tsankhi Ukhaa Khudag Bor tolgoi Borteeg and south west and eastern coalfields It is considered to be crucial to the efforts of Mongolia to convert its mineral wealth into economic gains mining technology com Decem ber 23 2014 Fourth coal chemi cals project under taken by Amec Foster Wheeler for Shenhua Ningxia Coal Group Amec Foster Wheeler announces the award of a three year project manage ment contract by Shenhua Ningxia Coal Group for the Coal chemical Byproduct Deep Processing Complex Utilization Project in the Ningxia Hui Autonomous Region in north west China Under the reimbursable multi million dollar con tract the value of which has not been announced Amec Foster Wheeler will be part of an integrated project management team responsible for the management of the engineering commercial pro curement health and safety quality and project controls activities of the project The company has successfully delivered three project management contracts and a basic engineering contract for Shenhua Ningxia Coal Group since 2006 The new plant is designed to produce a range of different coal chemical products polyeth ylene polypropylene synthetic ammonia and aromatic hydrocarbons It will include a 1 4 mill t a cracking plant It is expected to commence operation by mid 2017 Press Release January 13 2015 Fig 3 Schematic cross section of Golpu porphyry deposit 2012 compared with 2014 Photo Harmony Gold Mining Company Fig 4 Coal mine of Tavan Tolgoi Photo Wikimedia News

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