![]() The flotation concentrate is then either ground further and agitated in cyanide, or simply sold as is into the market. If the gold occurs with the sulphides then it may be possible to float out the sulphides after milling using a system like APT’s TriFloat. If there is enough free gold present, say 30% or more, then a gravity circuit can be installed with the ball mill and the gravity tailings go to the cyanidation agitators. The fine slurry is then sent to an agitated cyanidation system. Hard Rock needs to be crushed and milled to about 75 microns in a jaw crusher followed by a ball mill. *See ‘Types of Cyanidation’ further down. If there is still enough gold left in the gangue (or waste) particles after impacting, then they must be sent to cyanidation. *See the later section on ‘High Energy Impacting’ which APT uses for this type of ore. The slurry from the scrubber and from the crushing go together through a gravity concentrator. Sometimes if the ore is ‘soft’ it helps to use a scrubber up front to break up and liberate the ‘soft’ part and then you only have to crush the hard component. After this, the slurry is passed through a gravity concentrator.įor surface oxides the ore is crushed down to liberate the gold and then the resulting slurry goes through a gravity concentrator. Q: What process do I choose for each of the types of resource?Ī: For alluvial or elluvial ore you first dig up the material, then put it through a scrubber to break up lumps and liberate all the gold particles. Tailings are what is left over after miners have treated the ore before. Again the gold is free and there is no gold in the rocks. There is no gold in the hard rock in an alluvial deposit.Īn elluvial deposit is one that was also deposited by rivers or water a long time ago and it may now be far from any river. The deep level ore is called hard rock, the surface ore is called oxides.Īlluvial deposits are associated with rivers and the gold occurs as nuggets or fine gold. Sometimes as depth increases and sulphide minerals occur, the gold will be in the silicates as well as the sulphide minerals. ![]() The digital thread ties together a connected ecosystem for manufacturing and, with the addition of domain expertise and intelligence, enables continuous learning and improvement.Q :What kind of gold resources are there?Ī: Gold can occur in loose oxide near the surface or as the deposit gets deeper the host rock becomes harder. Our hardware solutions use metrology to bring real-world physical attributes to the digital thread to improve the accuracy of operations. Together, our manufacturing intelligence software solutions create a digital thread throughout the manufacturing process, enabling the entire organisation to take a holistic approach and work together with speed and confidence to achieve the desired outcomes. ![]() Through an unparalleled portfolio of digital manufacturing technologies spanning CAE solutions for design and engineering, CAD CAM and complementary software for production applications, metrology hardware and software solutions, as well as data management and analytics tools, we empower technology users throughout the process with deep and actionable insight into product quality, ensuring that quality drives productivity. Our manufacturing intelligence technology enables manufacturers to access, analyse and actively use data from all the key stages of the manufacturing process. Hexagon's Manufacturing Intelligence division helps customers put data to work to improve productivity and efficiency while embedding quality throughout the product lifecycle. ![]() Continuously improving productivity is essential for competitive success. While specific industries have their own unique challenges and motivations, productivity is central to manufacturers across the board. ![]()
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