Community Research and Development Information Service - CORDIS


The development of the town of Kalgoorlie was due to the discovery of gold in 1893 and the gold mining industry. In order to supply the gold diggers with water, a 563 km long pipeline was built between Weir and Kalgoorlie. The construction was finished in 1903. In the beginning food was transported on 5000 imported Arabian camels. Those camels provided the basis for today's Australian camel export trade. The evolution of the techniques to separate gold from soil has involved several steps: washing, separation by air, underground gold mining, and the present one, the open mine, in which the chemically bounded gold is extracted. The gold bearing soil is dug out and removed in trucks each carrying about 40 t. It is crushed and milled until about 100 my, then floated to separate sulphide/tellurium ore from silicium oxide ore. The former is roasted before further treatment, which for both involves conversion of the gold by NaCN in aqueous solution to Au(CN)2(-). This compound is absorbed by active coal, from which the gold is obtained by electrolysis.

Additional information

Bibliographic Reference: Article: Dansk Kemi, Vol. 73 (1992) No. 12, pp. 12-14
Record Number: 199310743 / Last updated on: 1994-11-29
Original language: en
Available languages: en