{"id":12541,"date":"2021-06-24T11:18:16","date_gmt":"2021-06-24T08:18:16","guid":{"rendered":"https:\/\/drago-met.ru\/?p=12541"},"modified":"2024-03-21T20:29:35","modified_gmt":"2024-03-21T17:29:35","slug":"affinazh-zolota-sut-protsessa-v-promyshlennom-masshtabe-i-v-domashnih-usloviyah-yuridicheskaya-storona-dobychi-dragmetalla","status":"publish","type":"post","link":"https:\/\/drago-met.ru\/en\/dobycha-i-affinazh\/affinazh-zolota-sut-protsessa-v-promyshlennom-masshtabe-i-v-domashnih-usloviyah-yuridicheskaya-storona-dobychi-dragmetalla\/","title":{"rendered":"Gold refining: the essence of the process on an industrial scale and at home, the legal side of precious metal mining"},"content":{"rendered":"

It happens that a gold item can no longer be worn: an earring is missing or a ring is broken or cracked. Most often, such jewelry is sold or put in a pawnshop. What happens to it afterwards? They are melted down and new items are made. There is such a process as refining<\/a> gold. Let's talk about it in more detail.<\/p>\n\n\n\n

What gold refining in jewelry means<\/h2>\n\n\n\n

So, what is it gold refining<\/a>? This is the name given to the process of cleaning metal. Not external cleaning, which is the process of returning a piece to its former purity and luster. Refining or affining is the removal of additional impurities from the gold. This process can also be referred to as refining. Refined gold, like sugar, is a perfectly purified item.<\/p>\n\n\n\n

\"Gold<\/span>
Refining of mined gold at the plant<\/span><\/strong><\/figcaption><\/figure>\n\n\n\n

For example, when mining<\/a> It is difficult to find perfectly pure gold bars. More often than not, they are grains mixed with other rocks or just earth. It is also important to know that precious metals, the same as gold and silver, are mined from the same ores. Therefore, they are always present in each other's impurities.<\/p>\n\n\n\n

Precious metal mined<\/a> It is processed at the plant, where it is refined. <\/p>\n\n\n\n

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The result is refined gold, a 999.9 metal.<\/p>\n<\/blockquote>\n\n\n\n

Accordingly, used gold items also have additional impurities - other metals. That is why they need to be refined. For example, you can get 999 from a 585 piece of jewelry.<\/p>\n\n\n\n

Raw materials for refining<\/h2>\n\n\n\n

To get refined gold, they work with certain raw materials. This is gold-containing<\/a> materials:<\/p>\n\n\n\n

    \n
  1. Natural mixtures containing precious metal. These can be minerals, rocks or even river sand.<\/strong><\/li>\n\n\n\n
  2. Scrap gold. Used gold items and elements. For example, jewelry scrap is earrings, rings, chains, bracelets, pendants, brooches. Technical - radio scrap, radio components, microcircuits. Household scrap - coins, crockery, watches, badges, medals. This can also include some types of edged weapons (sabers, swords, daggers), souvenir and antique items.<\/strong><\/li>\n\n\n\n
  3. Waste after cleaning a medical alloy. For example, gold plating applied by gilding.<\/strong><\/li>\n\n\n\n
  4. Concentrates of lead production. Lead contains the noble metals gold and silver. To separate them, zinc is used. When heated, it forms a silvery foam that takes the noble metals and separates from the lead.<\/strong><\/li>\n\n\n\n
  5. Waste gold. This type of raw material constitutes the largest share subjected to refining. This is all of the precious metal mined. It goes to processing plants, where it undergoes refining treatment.<\/strong><\/li>\n<\/ol>\n\n\n\n
    \"Alluvial<\/span>
    Alluvial gold<\/span><\/strong><\/figcaption><\/figure>\n\n\n\n

    As you can see, gold is not only a product of mining. The noble metal is present in everyone's life: in jewelry and household items.<\/p>\n\n\n\n

    Legal aspects of gold mining by refining<\/h2>\n\n\n\n

    All transactions involving the circulation of precious metals, stones and pearls are legally controlled by the state. Illegal sales are classified as economic crimes, since they pose a threat to the country's economic security.<\/p>\n\n\n\n

    Places to clean metal<\/h2>\n\n\n\n

    It is possible to refine gold under special conditions. Where does this procedure take place?<\/p>\n\n\n\n

    Industrial cleaning at plants by electrolysis<\/h3>\n\n\n\n

    The refining of the precious metal is carried out by industrial companies that specialize in this process. Gold is refined by means of electrolysis. This process involves passing the raw material through an electric current, causing it to separate into pieces. Of these, it is easy to separate the noble metal. There are very few such enterprises. Russian enterprises: \"Uralelectromed\", \"Krastsvetmet\", Kolyma refinery, Novosibirsk refinery, \"Tau-Ken Altyn\" plant in Kazakhstan.<\/p>\n\n\n\n

    \"Industrial<\/span>
    Metal cleaning by electrolysis<\/span><\/strong><\/figcaption><\/figure>\n\n\n\n

    Equipped laboratories<\/h3>\n\n\n\n

    If refining is carried out on a small scale, specially equipped laboratories are suitable.<\/p>\n\n\n\n

    Home Workshops<\/h3>\n\n\n\n

    It is hard to imagine, but gold refining is possible at home. To carry out the process, you need certain materials, equipment, and knowledge of refining techniques.<\/p>\n\n\n\n

    Refining methods<\/h2>\n\n\n\n

    There are two ways to purify a precious metal or to separate it from impurities:<\/p>\n\n\n\n