All gold is a noble metal that is malleable and malleable to be used as jewelery or valuable objects, apart from that gold is also widely used as an investment tool where this gold will be formed into bars or coins and the following is a brief process of processing gold gold can be obtained by: how to mine and to mine gold there are two ways namely mining gold in a conventional way and a modern way.
For the modern way, after the exploration process, the geologist will examine several areas that are suspected to have a lot of gold content, after that the locations that are thought to contain gold will be sampled, from these samples a 3D model will be created so that it can be seen which soil contains a lot of gold. the next process is excavation and blasting later the heavy equipment will take the rocks from the explosion.
This is to be included in the forbidden and then analyzed in a special laboratory to determine the level of gold content and later this will be divided into two, namely high grade ori and lo grade ori, grade ori has more gold particles compared to low grade ori and wright. this day also determines how it will be processed, while rocks that do not contain gold are called waste rocks.
This waste rock will be taken to a special place in the mine for low grade ore to be taken to dit espe, while for high grade ori it will be taken to a gold processing plant, the fed is a place to process gold ore for the ori program, then it will be sprayed with cyanide compounds to distinguish gold from other rocks.
The gold produced from spraying the cyanide will then be collected in a reservoir and then pumped into tanks containing carbon particles, the incoming liquid will then stick to the carbon particles and then be processed again using the stripping process, namely a separation process which will produce gold compounds which are then towards process.
Furthermore, while the rhetorical kayak will be taken to the gold processing factory, I think that will be put into the milling machine, so that it will become the final and or or in the form of fine grains and will then go to the final process, namely the process of separating gold from sand, but not everyone these fine grains go straight to the final process, because those containing sulfides will go through several more processes.
Before heading to the final process the results of all the processes above will then become themselves and all of this will then go to the tanks containing a mixture of cyanide compounds and carbon particles, gold, all of which will later stick to carbon and then the carbons that are This gold-containing material is carried to the stripping process, in this process the gold-containing carbon is added to the compound.
Specifically to take gold from carbon and the result is gold compounds, gold compounds will be processed again using the amical electrolysis process. furnish at 2,100 degrees Celsius, then pour it into a saucer which will later become gold bars or also known as dodadobar.
It consists of 85% gold and fifteen percent silver and later this door bar will be processed again into pure gold. Choice of choice is a general term for pure gold or silver with a minimum purity of 99.5% and in the form of bars or coins to be used as investment assets for pure gold or 24-karat gold, usually only used in electronic components, while pure gold is not used to make gold jewelry because gold metal that has a high concern will be softer.
For this reason, it must be mixed with other metals so that the gold can become jewelry that is strong and has high durability. In the process of making gold, for certain reasons, pure gold will be put into a container and then given additional metals such as silver or copper, where for a percentage how many grades of gold are made depending on the total percentage of gold, for 18 carat gold weight it with 75% pure gold while the rest is additional metal and so on then pure gold which has been given additional metal will be melted.For example, eighteen-carat gold requires a temperature of 926 degrees Celsius to melt and if 14-karat gold requires a temperature of 879 degrees Celsius to melt, the temperature difference is influenced by the amount of pure gold content, so the more pure gold content, the temperature needed to melt it will also be higher. high and after melting the gold is then poured into the mold and left to cool.
Apart from being in the form of gold bars, it is also in the form of coins, one of the companies that makes gold coins is Austria, which is located in Vienna, Austria. The production of this gold coin uses a roll of gold weighing 997 kilograms and this gold scroll is worth 39 million US dollars or the equivalent of 595 billion rupiah. then put into the stamping machine, so that it becomes a linmas shape and the remaining unused gold will be processed again at this factory, then the gold coins are put into the cleaning machine and in this process the coins will be printed using a special mold on the surface.
After printing, the quality will be checked first, then packaged and ready to be sent to consumers, while for the world's largest gold coin ever made in Australia, the coin was made by the Empatman company from Australia in order to welcome Queen Elizabeth to a city in Western Australia. , this gold coin weighs 1012 kilograms made of 99.99 percent pure gold and has a diameter of 80 centimeters and a thickness of 12 centimeters
Even though the manufacture is still melted, the furnish is put into the mold and then the gold is left to cool for several hours after it is removed from the mold, then the surface is carved manually and then rubbed using a special tool to make it shiny. The value of the largest gold coin in the world is estimated. reached 53.5 million US dollars or the equivalent of 775 billion rupiah and took a month to make.
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