About Copper Matte
Matte, copper is defined as : Substance resulting from metallurgic processing of primary and secondary sources. The matte is obtained from copper ore/concentrate and recycled materials. It is composed primarily of copper and copper, iron and lead sulphides with minor sulphides of other metals.
Copper processing - Roasting, smelting, and converting ...
These are heated by combusted fuel or electric current to a temperature of 1,230–1,300 °C (2,250–2,370 °F), producing an artificial copper-iron sulfide that settles in a molten pool at the bottom of the furnace. The sulfide material, known as matte, contains from 45 …
Copper Production: How Is Copper Made?
Sep 26, 2019 · The next step in the refining process is to oxidize liquid matte in order to remove iron to burn off sulfide content as sulfur dioxide. The result is 97-99%, blister copper. The term blister copper comes from the bubbles produced by sulfur dioxide on the surface of the copper.
Copper Mining and Production Processes Explained
The solid calcine is heated to 1200°C and melts. Some impurities are removed forming a matte (a mixture of liquid copper and iron sulphide). Conversion of matte. Air is blown into the liquid matte forming blister copper, so called because the gas bubbles trapped in the solid form blisters on the surface. Anode casting
(PDF) Matte converting in copper smelting
Aug 27, 2018 · Their annual copper production is in excess of 1.5 Mt, and selected fundamental studies behind this major technological invention will be examined. ... Copper matte converting is …
(PDF) Copper matte - slag reaction sequences and ...
Copper matte - slag reaction sequences and separation processes in matte smelting Article (PDF Available) in Journal of Mining and Metallurgy Section B Metallurgy 54(3):301-311 · December 2018 ...
What is copper matte? - Quora
Matte is the phase where copper is extracted prior to the final reduction process converting it to crude copper. The composition of copper matte is:- 80– 95 % coppers sulphide, 5 – 17 % metallic copper, Fe-Co alloys, metallic silver, galena, Pb-Ag alloys, Pb-Ni alloys, Pb-Cu alloys and arsenides.
Blister Copper - an overview | ScienceDirect Topics
The copper matte smelting can be conducted between 1423 and 1523 K in flash smelter, reverberatory, or electric furnace, etc., to partially oxidize the sulfur in the concentrates by oxygen in air and produce copper matte, a melt of Cu 2 S–FeS with copper grade of 30–50%.
12.3 Primary Copper Smelting
Smelting of roasted (calcine feed) or unroasted (green feed) ore concentrate produces matte, a molten mixture of copper sulfide (Cu2S), iron sulfide (FeS), and some heavy metals. Converting the matte yields a high-grade "blister" copper, with 98.5 to 99.5 percent copper.
production of copper matte - odanahschool.org
Production of Matte, White Metal, and Blister Copper by ... Outokumpu Oy has intensively studied the production of high-grade copper matte in a flash smelting furnace since the 1950s. Blister copper was first produced in the pilot furnace of the Metallurgical Research Centre at Pori in 1969 and the first commercial plant for direct blister production was commenced in 1978 in Poland.
Copper - Wikipedia
Copper is a stone element with the symbol Cu (from Latin: cuprum) and atomic number 29. It is a soft, malleable, and ductile metal with very high thermal and electrical conduct
Chapter 6 Copper Production Technology
discovered that heat made copper more malle-able. Casting and smelting of copper began around 4000-3500 B.C. (see figure 6-2). About 2500 B. C., copper was combined with tin to make bronze—an alloy that allowed stronger weapons and tools. Brass, an alloy of …
Production. Copper. Tapping copper matte from a blast ...
Tapping copper matte from a blast furnace at the Garfield, Utah smelter of the American Smelting and Refining Company. This plant is producing vast quantities of copper so vital for war purposes. [Between 1940 and 1946] Photograph. Retrieved from the Library of Congress, <www.loc.gov/item/2017697331/>.
Nickel processing - Extraction and refining | Britannica
In the next step, iron in the matte is converted to an oxide, which combines with a silica flux to form a slag. This is done in a rotating converter of the type used in copper production. The slag is drawn off, leaving a matte of 70 to 75 percent nickel.
Copper Mining and Processing: Processing of Copper Ores ...
The copper matte created by the smelting furnace contains 58-60% copper. The molten matte is then taken to another furnace called a converter to have the remaining iron and sulfur burned off; the product is referred to as blister copper, which contains 98% copper, and taken to the anode smelter.