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  • How is Silver processed / made extracted & purified

    14/12/2017· The alloy is usually copper or copper combined with other metals. How is silver extracted from its ore. The action begins down in the mines where geologists point a light on gun at various spots in the rock face. The electronic device detects the level of 40 different elements including silver. The silver in its natural state isn’t silver colored at all, rather than charcoal grey. Those

  • Silver processing Britannica

    Silver-bearing ore was ground and then mixed with salt, roasted copper ore, and mercury. The mixing was accomplished by tethering mules to a central post on a paved patio (hence the name of the process) and compelling them to walk in a circle through the mixture. The silver was gradually converted to the elemental state in a very finely divided form, from which it was dissolved by the mercury

  • Bioleaching (Biomining) Advantages, Process & More

    Copper; Silver; Cobalt; Uranium; Zinc; Nickel; How does the bioleaching process work? There are many types of bioleaching processes, and copper is the most common. A few of the most popular types of bioleaching extract metals from ore by retrieving sulfide minerals using bacteria that receive energy from non-carbon compounds. Below are a few approaches to bioleaching: Direct v. Indirect

  • Silver Minerals Education Coalition

    Silver is found in lead, zinc, gold and copper ore deposits. The most important ore mineral of silver is argentite (Ag2S, silver sulfide). Silver is commonly extracted from ore by smelting or chemical leaching. Uses. Silver has been used for thousands of years for jewelry and decorative items of all types. Likewise, it has been used for silverware. Of all the metals, untarnished silver is the

  • Geology of Silver Properties, Mining, and Formation of

    15/9/2019· Silver can also be extracted from copper and zinc through a similar process in which the silver is purified by a nitrate solution. Another source of silver is refined from gold mines. Electrum is a type of rock in which the gold and silver content equal approximately 20% of the total material. Trace amounts of silver can be extracted from this gold ore product. How Silver is Formed. Within the

  • The Silver Extraction Process athens123

    The Silver Extraction Process. The ore used to extract silver was not a silver ore but Lead Sulphide (formula PbS), known as Galena or Galenite (named by the Roman Pliny) which contains 87% lead. The local variety of Galenite is silver-bearing and is known as Argentiferous Galenite (formula (Pb.Ag)S ) and the lead obtained from this ore contains just a small percentage of silver from 0.8% up

  • Copper Mining and Extraction Sulfide Ores

    Copper can be extracted from its ore by: Underground: sinking a vertical shaft into the Earth to an appropriate depth and driving horizontal tunnels into the ore. Open pit: 90% of ore is mined by this method. Ores near the surface can be quarried after removal of the surface layers. The ore is treated with dilute sulfuric acid. This trickles slowly through the ore dissolving copper to form

  • Extracting iron and copper Reactions of metals AQA

    than carbon, it can be extracted from its compounds by heating with carbon. Copper is an example of this. Copper mostly occurs as sulfide ores, which are heated in air to convert them to copper(II

  • Bioleaching (Biomining) Advantages, Process & More

    Copper; Silver; Cobalt; Uranium; Zinc; Nickel; How does the bioleaching process work? There are many types of bioleaching processes, and copper is the most common. A few of the most popular types of bioleaching extract metals from ore by retrieving sulfide minerals using bacteria that receive energy from non-carbon compounds. Below are a few approaches to bioleaching: Direct v. Indirect

  • Geology of Silver Properties, Mining, and Formation of

    2 天前· Silver can also be extracted from copper and zinc through a similar process in which the silver is purified by a nitrate solution. Another source of silver is refined from gold mines. Electrum is a type of rock in which the gold and silver content equal approximately 20% of the total material. Trace amounts of silver can be extracted from this gold ore product. How Silver is Formed. Within the

  • Silver Ore The Mining Processes that Transform Ore into

    18/12/2016· When silver is found in ores containing copper then the electrolytic refining method is used to extract the silver. The ore is placed in an electrolyte solution with a cathode and an anode. Electricity is then passed through the solution forcing the silver to accumulate around the anode while copper attaches itself on the cathode. This is then collected and leached to remove impurities.

  • How silver is made material, making, history, used

    To extract silver from copper-containing ores, an electrolytic refining process is used. The ore is placed in an electrolytic cell, which contains a positive electrode, or anode, and a negative electrode, or cathode, in an electrolyte solution. When electricity is passed through the solution, silver, with other metals, accumulates as a slime at the anode while copper is deposited on the

  • Extracting a metal from its ore chymist

    Metals with low chemical activity, such a gold and silver are normally found in their pure state. Copper, tin, lead, and iron are more reactive and must be heated with carbon to extract the metals. Aluminum, calcium, sodium and other active metals are extracted using electrolysis. Copper can be extracted from its ores by reduction. One of the

  • Silver Geoscience Australia

    Silver can be used to prevent bacterial and fungal growth in plastic and textiles. History. The use of silver dates from the earliest historic records, it was usually extracted by melting lead ore (galena). The ancient Greeks mined silver at Laurium from the 6th to the 2nd century BC, enabling them to prosper enormously and to build such magnificent structures as the Parthenon and Temple of

  • Metals Found in Rocks Facts about Minerals DK Find Out

    The rock or mineral that holds the metal is called an ore. An ore is heated with chemicals until it melts and the pure metal separates out as a liquid. The liquid then cools and hardens. A few metals, such as gold, silver, and copper can be found in pure form as metal elements. Nuggets or flakes of these metals can be taken straight from rock, but this is uncommon. Metals are used to make many

  • Copper extraction Wikipedia

    Copper extraction refers to the methods used to obtain copper from its ores.The conversion of copper consists of a series of physical and electrochemical processes. Methods have evolved and vary with country depending on the ore source, local environmental regulations, and other factors.. As in all mining operations, the ore must usually be beneficiated (concentrated).

  • copper extraction and purification chemguide

    Extracting copper from other ores. Copper can be extracted from non-sulphide ores by a different process involving three separate stages: Reaction of the ore (over quite a long time and on a huge scale) with a dilute acid such as dilute sulphuric acid to produce a very dilute copper(II) sulphate solution. Concentration of the copper(II) sulphate solution by solvent extraction. The very dilute

  • Extracting iron and copper Reactions of metals AQA

    than carbon, it can be extracted from its compounds by heating with carbon. Copper is an example of this. Copper mostly occurs as sulfide ores, which are heated in air to convert them to copper(II