With the aim of investigating deportments of precious metals in pyrometallurgical processing of waste electrical and electronic equipment, the distributions of selected precious metals (gold, silver, platinum, and palladium) between copper matte and three different silica-saturated slags (pure FeO x-SiO 2, FeO x-SiO 2-Al 2 O 3, and FeO x-SiO 2-Al 2 O 3-CaO slag) were …

materials from copper slag. Recovery of copper, molybdenum, precious metals, silica and iron, that is the most abundant component of the slag, are the goals for this research. Metals, commercial compounds, alloys and different forms of iron oxides for steel industry are proposed products.

2700 S Indiana Street. Vernon, CA. (323) 262-1101. CLAIMED. Categorized under Secondary Smelting and Refining-Nonferrous. We need nonferrous metal residue that copper slag,copper residue,copper sludge,copper dross, copper ash, lead slag,lead residue,lead ash.nickel sludge,nickel residue. Raw Gold & Diamond Co.

finding precious metals in mill slag - grelck-kaminholz.de. Products Inquiry finding precious metals in mill slag. Tapping Hot Slag for Energy Primetals Technologies. Tapped at 1 500 degrees Celsius blast furnace slag retains a staggering 1.7 gigajoules of energy per ton—enough to sustainably power an electric car for months.

components and contact the molten slag containing precious metals with a molten metal pool, into which the precious metals dissolve and accumulate. The molten metal is called a collector metal. Iron, copper, nickel, lead-copper and nickel matte are commonly used as collector metals.6,7) The extracted precious metals must be further treated in order

Waste matter separated from copper during the smelting or refining of copper ore is known as slag. In the present work, the precious metals like gold and silver content in concentrate and slag are ...

The invention is directed to a process for extracting a metal from a slag containing said metal, wherein the liquefied metal-containing slag is heated in at least one electric arc furnace (1, 2).In order provide an improved method for recovering especially copper from slags, the invention provides that the metal-containing slag is heated in a first furnace (1) constructed as an AC electric ...

Copper smelting slag is produced from copper pyrometallurgy (both smelting and converting stages), usually grading at 0.3-3%. The slag may also contains lead & zinc minerals like galena, sphalerite. Copper mainly dwells in the slag in the form of bornite, chalcocite, chalcopyrite, and metallic copper.

The present invention provides a process for recovering valuable metals from precious metal smelting slag, comprising: smelting the precious metal smelting slag and a flux in a top-blown rotary furnace to produce a lead-bismuth alloy, wherein the precious metal smelting slag comprises Au, Ag, Bi and Pb; electrolyzing the lead-bismuth alloy at a current density ranging from 60 …

[Show full abstract] waste discharged from copper smelter is used not only as a flux for controlling slag composition, but also as a collector metal for capturing precious metals, and a plastic ...

The present invention provides a process for recovering valuable metals from precious metal smelting slag, comprising: smelting the precious metal smelting slag and a flux in a top-blown rotary furnace to produce a lead-bismuth alloy, wherein the precious metal smelting slag comprises Au, Ag, Bi and Pb; electrolyzing the lead-bismuth alloy at a current density ranging from 60 to 110 A/m2 to ...

The present invention provides a process for recovering valuable metals from precious metal smelting slag, comprising: smelting the precious metal smelting slag and a flux in a top-blown rotary furnace to produce a lead-bismuth alloy, wherein the precious metal smelting slag comprises Au, Ag, Bi and Pb; electrolyzing the lead-bismuth alloy at a current density ranging from 60 to 110 A/m2 to ...

The present invention provides a process for recovering valuable metals from precious metal smelting slag, comprising: smelting the precious metal smelting slag and a flux in a top-blown rotary furnace to produce a lead-bismuth alloy, wherein the precious metal smelting slag comprises Au, Ag, Bi and Pb; electrolyzing the lead-bismuth alloy at a current density ranging from 60 to 110 A/m2 to ...

Before electro-refining, lead bullion has to be pre-refined to reduce copper and tin content. After electro-refining, lead cathode should be further fire-refined before ingot casting. This process generates, except copper slag and tin slag, especially lead anode slime that contains valuable metals.

in the copper smelting slag, and precious metals, such as gold, silver, and rare metals, are associated with this type of slag. Moreover, toxic element materials, such as arsenic and lead, are contained in this slag, which has been reported in the latest research [18, 21 ]. Due to its low comprehensive utilization ratio, most of the copper ...

The present invention provides a process for recovering valuable metals from precious metal smelting slag, comprising: smelting the precious metal smelting slag and a flux in a top-blown rotary furnace to produce a lead-bismuth alloy, wherein the precious metal smelting slag comprises Au, Ag, Bi and Pb; electrolyzing the lead-bismuth alloy at a current density ranging from 60 to 110 A/m2 to ...