Gold.refinery
Well-known member
Hello
Can you help me about the recovery of gold and silver from silver chloride after Refining operations?
After finishing the gold refining operation, we have some silver chloride in which some gold (about 10-15% ) is trapped. It can be done according to the following steps:
first I recover the silver in the following way, then I dissolve the obtained silver in nitric acid, the gold is extracted, the silver chloride is formed again and the silver is recovered by the following method.
NaOh , Sugar method :
I read the posts and realized that
to convert 1000 grams of silver chloride,
I must first dissolve it in 2 liters of water.
Then add 600 gr of NaOH slowly, and mix well to form silver oxide (stirring well is important)
Then add the saturated food sugar solution (approximately 400 g of sugar) and stir well until Do not increase the temperature by adding syrup.
Am I right so far?
Please Complete if there is a point.
Now I have some questions,
first: what to do to wash silver from NaOH?
How to dry silver easier?
I have experienced that it is difficult to melt the silver obtained from this process, and it is not easy to form silver metal.
Should it be melted with sodium carbonate or what do you suggest?
I have an induction furnace.
Can you help me about the recovery of gold and silver from silver chloride after Refining operations?
After finishing the gold refining operation, we have some silver chloride in which some gold (about 10-15% ) is trapped. It can be done according to the following steps:
first I recover the silver in the following way, then I dissolve the obtained silver in nitric acid, the gold is extracted, the silver chloride is formed again and the silver is recovered by the following method.
NaOh , Sugar method :
I read the posts and realized that
to convert 1000 grams of silver chloride,
I must first dissolve it in 2 liters of water.
Then add 600 gr of NaOH slowly, and mix well to form silver oxide (stirring well is important)
Then add the saturated food sugar solution (approximately 400 g of sugar) and stir well until Do not increase the temperature by adding syrup.
Am I right so far?
Please Complete if there is a point.
Now I have some questions,
first: what to do to wash silver from NaOH?
How to dry silver easier?
I have experienced that it is difficult to melt the silver obtained from this process, and it is not easy to form silver metal.
Should it be melted with sodium carbonate or what do you suggest?
I have an induction furnace.
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