OK what I need to know is... what is the best way to deal with around 5 to 10 tons of sulfide ore per hour. The ore vein itself is galena surrounded by dark red iron about 5 foot wide, basically looks like rust with the gray/greenish vein down the middle about 8 inches wide. The ledge was exposed with a cat.

Sulphide ores will contain mainly sulphide ions. They are very economic and are easy to extract from the rocks. They are basically rocking which contain sulphide ions in large parts. The sulfide minerals are a class of minerals containing sulfide or per sulfide as the major anion. Some sulfide minerals are economically essential as metal ores.

The effect of metallic iron fines on froth flotation of a sulfide ore was examined by comparing the flotation results with and without iron fines present in the flotation feed. Mild steel and ceramic laboratory ball mills were used to grind 600 g sulfide ore charges. The mild steel ball mill generated approximately 4.6 g of iron fines (0.8% of the ore charge mass) when …

Estimates of Electricity Requirements for the Recovery of Mineral Commodities, with Examples Applied to Sub-Saharan Africa . Open-File Report 2011–1253

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further classified into three sub classes: free milling, sulfide associated and refractory. Free-Milling Gold Gold ore is considered free-milling when over 90% of the gold can be recovered by a conventional gravity-cyanidation process with low reagent consumptions at a grind size of 80% passing 75 µm. Some

Blasted ore from the open pit that is directed to the mill undergoes primary, secondary, and tertiary crushing to reduce the ore size, increasing the surface area to facilitate the release of minerals. The crushed ore is fed to the concentrator where it is mixed with water in mills to achieve further size reduction.

No matter the method, sulfide-ore copper mines proposed near the Boundary Waters would extract trace amounts of metals from large volumes of rock. Rock is blasted from pit walls and sorted into metal-bearing ore and waste …

1 Types of copper sulfide ore (1) Single copper mineral Its ore characteristic is relatively simple, and the only useful component that can be recycled is copper. The gangue minerals are mainly quartz, carbonate and silicate. (2) Copper-sulfur ore Called copper-bearing pyrite. In addition to copper minerals, iron sulfide can be recovered, and the main mineral of …

First application of a Vertical-Roller-Mill in a sulphide Copper-Gold ore project. Proceedings of the Comminution '18, Cape Town, South Africa, Standard grindability test tabulated.

Sulfide ore minerals were concentrated by froth flotation, a method used in the early twentieth century that allowed processing of ores. The original mill equipment is still in working order. It is the only intact and functional mill of its kind in Colorado. The Mill was declared a National Historic Landmark in 2000.

Copper sulfide ores must be concentrated before they can be economically transported to a ... The crushed ore is transferred to a semiautogenous (SAG) mill or ball mill where the ore is further reduced in size. Water is added to the ball mill, in which a slurry that usually contains from

The ore from the mine contains about 2% copper. To get at the copper the first stage is crushing in huge cylindrical ball mills. Ball mills crush the ore into a fine powder. (Courtesy of Rio Tinto.) Stage 2: Froth flotation The powdered ore is …

Sulfide ore is often a higher-grade ore (contains more copper) Ultimately more copper can be extracted from sulfide ore deposits. Pyrometallurgy. ... Crushed ore is further processed at a mill to fine sand. Liquid is added to make a slurry (copper ore and gangue)

Ore is crushed in-pit, in three semi-mobile gyratory crushers. Overland conveyors feed two secondary crushers, and two mill trains each consisting of a 40 foot diameter 28 megawatt SAG mill twinned with a 44 foot length 22 megawatt Ball mill. The grinding mills are amongst the largest of their type currently operating in the world.

Most mills use water sprays to control dust from milling activi ties.6 After milling, sulfide ores may be subjected to oxidation by chlorination, bio-oxidation, roasting, or autoclaving. Chlorination is not commonly used to oxidize sulfide ores because of high equipment maintenance costs caused by the corrosive nature of the oxidizing agent.

Since the site reopened in 2019 under a new name, it has been utilizing heap leach processing for its oxide ore body. However, sulfides are best processed using a mill. Officials say they are proceeding with feasibility studies to estimate the cost of a new mill and possibly an autoclave.

For example, assume that raw ore is a two component system comprised of a valued mineral and host rock having relative densities of 6.30 and 2.65, respectively. The amount of valued mineral is 30% of the total ore.Total Solid Mass, M: Mineral + Host Rock – 30 + 70 = 100 Total Volume, Vs: Total Solid Relative Density

The first step in this process is crushing and powdering ore in a ball or rod mill. Sulfide Copper Ores . Virtually all sulfide-type copper ores, including chalcocite (Cu 2 S), chalcopyrite (CuFeS 2) and covellite (CuS), are treated by smelting. After crushing the ore to a fine powder, it is concentrated by froth flotation, which requires ...

Some characteristics of massive sulfide ores that should be taken into account in mill design are the following: Massive sulfide ores tend to be relatively soft and brittle and can be ground easily. Since the specific gravity of the pulp is relatively high, easy-flow launders and adequate agitation must be provided.

For this study, materials (copper sulphide ore) were sampled from the SAG mill feed in Sungun copper concentrator plant. The density of ore was 2.8 g/cm 3. The ore was crushed in a laboratory scale jaw crusher and roll crusher successively to prepare materials for ball mill grinding tests.

Sulphide Gold Ore Treatment by Leaching and Flotation Process Problem with gold recovery from sulphide ore: How may a mill get the maximum recovery of gold from a sulphide ore, at the least capital cost and at the same time obtain the highest net return. This latter point is most important.

Zinc and lead are usually concomitantly present in Zn-Pb ores and tailings. A novel non-polluting hydrometallurgical process for selectively leaching and recovering zinc (Zn) from a composite lead (Pb) and zinc sulphide containing mineral, crashed untreated rock or unconsolidate mineral particles, mill tailings and/or agglomerated or unagglomerated sulphidic zinc containing waste …

Silver-rich ores and copper sulfide ores: Silver-rich ores and copper sulfide ores are often free-milling, but when the silver grade is high (>10 g/t) and/or the gold is present as electrum, the processing may need to be modified.

We found a big gold mine with free mill gold, high grade gold ore, massive sulfide veining which is also high grade and grab samples of beautiful rocks with ...

2), sphalerite ((Zn,Fe)S), and galena (PbS), which are the most abundant sulphide minerals on Earth, generated H 2O 2 in pulp liquid during wet grinding in the presence or devoid of dissolved oxygen in water and also when the freshly ground solids are placed in water immediately after dry grinding. Pyrite generated more H 2O

Sulphide ore is processed in the concentrator. The mill employs two 32-ft SAG mills feeding a complex arrangement of rod and ball mills. A final grind size of 219 microns is achieved before the slurry is passed on to flotation.

porphyry copper sulphide ores. Therefore, this paper was aimed to study electrochemical behavior inside ball mills and influence of milling environment (pulp chemistry) on flotation process. This study was carried out on the Sarcheshmeh porphyry copper sulphide ore. The Sarcheshmeh copper ore is a major

Carrollite Co 2 CuS 4 – Chalcocite Cu 2 S ore; Feed: Co 2 CuS 4 –Cu 2 S ore from underground mining: 0.4% Co, 4% Cu in dolomite gangue: Process description: Flotation of bulk concentrate by froth flotation with xanthate collector: Equipment: Autogenous grinding mills, particle size control cyclones, 8.5 m 3 mechanical flotation cells, middlings regrind, cleaner flotation