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Dust and concentrate handling solutions for the harshest of environments. Raumaster has been working in industrial material handling applications for over 30 years and offers customized conveyor and feeder systems for handling both dust and concentrate in metal smelting plants.

volves smelting of the ore or concentrate at high temperatures, while the latter involves leaching the ore or concentrate at rela- tively low temperatures, including ambient.

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Nickel - USGS

16,000 tons of nickel in concentrate, which was exported to smelters in Canada and overseas. A company in Missouri recovered metals, including nickel, from mine tailings as part of the Superfund Redevelopment Initiative. Nickel in crystalline sulfate was produced as a byproduct of smelting and refining platinum-group-metal ores mined in Montana.

Indirect smelting. Before lead concentrate can be charged into traditional blast furnaces for smelting, it must be roasted to remove most of the sulfur and to agglomerate further the fine flotation products so that they will not be blown out of the blast furnace. Various fluxing materials, such as limestone or iron ore, are mixed with the ore ...

An oxygen pressure leaching method for a copper sulfide concentrate and a copper smelting method. The oxygen pressure leaching method comprises: first, adding water to the copper sulfide concentrate and grinding same into pulp; adding a first dispersant, a first vanadium precipitation agent, two sections of supernatant liquid, and the pulp to an autoclave for …

Table 2 - Potential Candidates for Hydrometallurgical Pretreatment Concentrate Cu,% As,% Sb, % Pb, % Zn, % Co + Ni, % A 28 7 1.5 B 23 3.3 1.6 9 10 C 25 4.5 6 13 D 22 0.5 10 7 E 11 9.5 F 27 10 6 G 25 0.5 1.1 9 6 H 24 5.8 5 10 9 I 19 2.5 2.4 9 8 While hydrometallurgical processing at the mine reduces the marketing risk associated with impurity-

Jun 23, 2013· A low grade concentrate may achieve greaterrecovery of the values, but incur greater smelting andtransportation cost due to the included gangue minerals. Also of importance are impurities in the concentrate whichmay be penalized by the smelter, although precious metalsmay produce a bonus. The net return from the smelter (NSR) can be ...

Oct 06, 2020· Iron Concentrate is created by purifying Crushed Iron Ore. This can be done in one of two ways either dry og wet purification. Each of the metodes to purify the iron has two specific crafting stations that can do the job. The crafting stations come with different ratios, labor cost and time cost. The process to make Iron Concentrate also gives a byproduct of either …

The principle of tin smelting is the chemical reduction of tin oxide by heating with carbon to produce tin metal and carbon dioxide gas. In practice, the furnace feed contains the tin oxide concentrate, carbon in the form of anthracite coal or coke, and limestone to act as a flux and a slag-producing agent.

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Zinc smelting - Wikipedia

Zinc smelting is the process of converting zinc concentrates (ores that contain zinc) into pure zinc. Zinc smelting has historically been more difficult than the smelting of other metals, e.g. iron, because in contrast, zinc has a low boiling point.At temperatures typically used for smelting metals, zinc is a gas that will escape from a furnace with the flue gas and be lost, unless …

Jun 07, 2021· Smelting: Then, copper concentrates are mixed with silica (sand) and limestone and heated in a furnace to form two naturally-separating layers. One layer is a waste containing iron and silica compounds and is discarded as slag slag Byproduct left after a desired metal is thermally separated from its raw ore. .

TCRC stands for Treatment Charge, Refining Charge (mineral concentrate smelting) Suggest new definition. This definition appears very rarely and is found in the following Acronym Finder categories: Business, finance, etc. See other definitions of TCRC. Other Resources: We have 36 other meanings of TCRC in our Acronym Attic. Link/Page Citation.

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12.3 Primary Copper Smelting

In the smelting process, either hot calcine from the roaster or raw unroasted concentrate is melted with siliceous flux in a smelting furnace to produce copper matte. The required heat comes from partial oxidation of the sulfide charge and from burning external fuel. Most of the iron and 10/86 (Reformatted 1/95) Metallurgical Industry 12.3-1

concentrate smelting process in the reverberatory furnace in Bor, according to the described procedure [7]. In this experiment, samples of slag and matte were gathered in order to determine the contents of Cu, Au, Ag, Pb, Zn, Ni, As, Sb, Se and Bi with the aim to determine their distribution coefficients between these phases. Matte

The two gold refining methods most commonly employed to derive pure gold are: the Miller process and the Wohlwill process. The Miller process uses gaseous chlorine to extract impurities when gold is at melting point; impurities separate into a layer on the surface of the molten purified gold. The Miller process is rapid and simple, but it ...

A method of oxygen-smelting copper sulfide concentrate to obtain white metal, nearly white metal matte or blister copper by removing most of the Fe in the copper sulfide concentrate into the slag as well as removing part or most of the S therein as SO 2 wherein oxygen-smelting is carried out to produce; slag in which a weight ratio of CaO to (SiO 2 +CaO) is 0.3 to 0.6 and a …

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Lead and Zinc - Energy Lead Concentrate Sintering and Smelting Smelting is the process by which rough lead bullion is produced from lead concentrate. After the ore has been concentrated at a mill near the mine, the lead concentrates are shipped to a smelter. Here, in the case of galena, the first step involves removing the sulfur from the mineral. Roasting

Nov 23, 2010· The main purpose of this study is to characterize and separate antimony from a stibnite concentrate through a low-temperature sulfur-fixing smelting process. This article reports on a study conducted on the optimization of process parameters, such as flux and zinc oxide weight percentage, in charging, smelting temperature, smelting duration on the …

saleable flotation concentrate, although there are several studies ongoing on further upgrading their product as a furnace matte, a converter matte or various other intermediate and saleable products. Table I lists the more significant projects at this time. Faced with limited capacity for concentrate smelting and

The copper concentrate is first sent through the smelting furnace to be heated up to 2,300 °F and converted into molten liquid. The heated liquid is poured into a slag-settling furnace. This step produces a combination of matte, a mixture of copper, sulfur and iron, and slag, a dense, glassy material made of iron, silica, and other impurities.

Figure 6-2.—Early Smelting Technology Charcoal ore flux m The Egyptian copper smelting furnace was filled with a mixture of copper ore, charcoal and iron ore to act as a flux. It was blown for several hours by foot or hand bellows. By the end of the smelt the copper had separated from the slag, which was tapped off.

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Copper smelter - Boliden

Example) Value of Sulphur (rule of thumb)= 1 DMT of Cu concentrate with 30% of sulphur gives approximately 1 ton of sulphuric acid (H2SO4) depending on recovery rate. Typical recovery rate is 95% in a Cu smelter. 1 DMT Cu concentrate (30%S) x (98/32) x 95% 0.873 ton H2SO4 x 75 USD/t = 65.5 USD/DMT Sulphuric acid, contract CFR NW Europe 1988-2008

Zinc smelting is the process of converting zinc concentrates (ores that contain zinc) into pure zinc. The most common zinc concentrate processed is zinc sulfide, which is obtained by concentrating sphalerite using the froth flotation method.There are two methods of smelting zinc: the pyrometallurgical process and the hydrometallurgical process (over 90% of …

Jun 08, 2021· As Indonesia prepares to ramp up domestic copper smelting, processors elsewhere must look for alternative sources of concentrate, which might cost more, consultancy firm CRU group said on Tuesday.

US1798255A US159450A US15945027A US1798255A US 1798255 A US1798255 A US 1798255A US 159450 A US159450 A US 159450A US 15945027 A US15945027 A US 15945027A US 1798255 A US1798255 A US 1798255A Authority US United States Prior art keywords copper concentrate solution sulphide grade Prior art date Legal status …

Copper/bismuth concentrate smelting and refining LEACHING AND HYDROMETALLURGY KPM runs bench-top scale and small pilot size tests for a wide range of hydrometallurgical processes including conventional and column leaching, solvent extraction, ion exchange, solution purification (e.g. iron control), electrorefining and electrowinning.

The amount of water fed to a smelting furnace can vary from 6–16 tons per hour, with feed rates of 60–160 t/h of concentrate containing 10% water. This water in the smelting furnace adds no value; on the contrary, it adds to the cost of the process. The additional energy required and increased off-gas flow are

market, i.e.supply of concentrate vs smelting capacity. When copper prices are low, naturally supply of concentrate dries up fairly quickly, whereas smelters keep going, thus there is a rough relationship as one might expect between copper prices and treatment charges. Figure 3 presents the historical copper prices and TC/RCs from 1986 to present.

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PT Smelting was established in February 1996 as the first copper smelter and refinery in Indonesia with approximately US $500 million for direct construction cost. The plant was originally designed to produce 200,000 tpy of "LME Grade A" copper cathode from 660,000 tpy of copper concentrate supplied by domestic mining companies.

and smelting, converting, and refining the re-maining 40 percent. Actual requirements vary widely depending on the mine characteristics and type of smelter, however. Table7-1 shows one estimate of energy requirementsin Btu equiva- lents for a hypothetical copper operation. It is in-teresting to note that pollution control equals a

The Johnson Matthey smelting works at Brimsdown. Here the nickel-copper matte, carrying the platinum metals at about fifty ounces to the ton, arrives from South Africa and is smelted to yield metallic nickel and copper and the platinum metals in the form of a concentrate

The sulphides in the flotation concentrate are fully converted into an oxide form during oxidative roasting, therefore, the chemical composition of the roasted concentrate is considered to be a copper slag. High temperature smelting with additives to dissolve Au from the gold concentrate into a molten copper was used in the research.

In fact any copper in a lead or zinc concentrate is generally problematic in the smelting/refining processes and would most likely incur a penalty charge (see more on penalties below). Usually lead and zinc bearing concentrates are sold as a separate product but there is a market of a mixed lead/zinc concentrate, commonly referred to as "Bulk ...

Concentrated material from this step is then dried and fed into a high temperature smelting furnace. As the concentrate is heated, different materials in it separate into layers. A layer of melted material containing copper, known as the matte layer, sinks to the bottom. Waste solids, called slag, float to the top.

Concentrate Concentrate Furnace Matte Smelting Ore Anglo Converting Process (at Rustenburg) Our configuration differs from our competitors - we have a broad footprint across all 3 Bushveld limbs. Consequently, our integrated production system is more complex (i.e.13 concentrator plants, 3 smelters and 2 refineries) g g Mine Output ( OM Ore)