Also, copper slag can be utilized to make the products like cement, fill, ballast, abrasive, aggregate, roofing granules, glass, tiles etc. (Shen and Forsberg, 2003). Copper Slag Processing Recycling today's copper slag is similarly possible. Recovery of metals from
Copper mainly dwells in the slag in the form of bornite, chalcocite, chalcopyrite, and metallic copper. The rest are iron minerals like magnetic iron ore, metallic iron and gangue like fayalite, hedenbergite and amorphous phase matter. Such slag can be concentrated by separation and enrichment to obtain copper concentrate.
3.3 Copper slag Copper slag is a by-product material produced from the process of manufacturing copper. As the copper settles down in the smelter, it has a higher density, impurities stay in the top layer and then are transported to a water basin with a low temperature for solidification. The end product is …
The impoverished slag can still be recycled to the furnace (with fairly minimal disruption to the existing process, and with the benefit of reduced quantities of magnetite which otherwise builds up in the furnace), or can be dumped (breaking the recycle entirely, necessitating some changes to …
Copper slag usually has a low content of CaO; granulated copper slag exhibits pozzolanic properties as CaO content in copper slag increases, it can exhibit cementitious properties. Studies [8-12] indicated that a copper slag, which contains approximately 19% CaO, show a good cementitious property under the activation of NaOH.
The present invention relates to a process for recovery of iron from copper slag. This invention particularly relates to a process for recovery of iron from a waste like granulated copper slag generated during the production of copper from its ores by a pyrometallurgical method. The present invention will be useful for solving the ecological and environmental issues with an added economic ...
As the operation proceeds, the lower-density slag floats on top of the molten layer. As the slag builds up, the converter is rolled out and slag is removed into a ladle (Figure 9). The slag, containing 6 to 8 percent copper, can be returned by over- head crane to the smelting furnace.
natural sand by copper slag, the flexural strength of concrete is increased by 14%.and all percentage replacement of fine aggregate by copper slag the flexural strength of concrete is more than normal mix. 4. Compressive strength and flexural Strength is increased due to high toughness of copper slag.
Copper slag is a by-product obtained during smelting and refining of copper. The waste copper slag can be used as abrasive tools, road construction, and ballast. ... certain local variables that ...
Two types of slag can be produced: an air-cooled copper slag with light black color and a glassy appearance, and granulated copper slag which is porous with a vesicular structure. 26 The specific gravity of copper slag varies as a function of the iron content, between 3.2 and 3.8 kg/m 3, and its water absorption is typically very low (<0.2 wt ...
Copper slag is an excellent by-product or waste material that retains its original properties. Due to its chemical & physical composition which includes high iron, silica, and aluminum oxide content, it can be used as a partial replacement for sand in concrete mixes.. Although the majority of the produced copper slag is used in the sand blasting machine industry and in the manufacturing of ...
Copper slag (aka iron silicate) is a by-product of a metal refining process.During smelting, slag floats on the molten metal. Slag that is quenched in water produces angular granules that are stockpiled to be processed into granules for a variety of our blasting abrasives.
copper slag characterized as hazardous materials, due to the increasing environmental concern for disposal of copper slag. In recent years, extensive studies have been carried out to recover the valuable metals from copper slag. Basically, they can be classified into three main categories, namely physical separation process,
Oct 16, 2020· Four different phases in the slag sample can be observed by using an electron probe X-ray microanalyzer (EPMA), as shown in Figure 1.The fayalite phase with a long strip shape is the base of the slag; the white grey particles consisting of copper, iron and sulfur elements are the matte phase, which has a large particle size (> 100 μm).Many magnetite particles are distributed in the slag, and ...
copper, molten slag containing iron oxides plus gangue and flux oxides, and offgas. The slag typically contains as much as two percent copper. This slag can be recycled to the flash furnace, or its copper content can be recovered in a slag cleaning furnace, often electric. The flash furnace
Copper extractions from the copper smelter slag and the copper smelter slag flotation tailings as a function of time at different initial ferric iron concentrations By comparing Figure 2 and 4, it can be seen that both the copper extractions and
The copper is cast into copper anodes and placed in an electrolytic cell. Once charged, the pure copper collects on the cathode and is removed as 99% pure. The copper can be sold to wire-rod mills or further processed into rods. Anode slime refers to impurities that sink to the bottom of the electrolytic cell.
Jul 26, 2021· Copper Slag Features. It can be used to stabilize the ground, copper slag can cut wood. Copper slag molding can effectively replace bricks, blank blocks and pavers. It is a hard black copper slag that looks like glass. Copper Slag Grit. A Copper slag is mainly used for surface irradiation.
Jan 13, 2021· Copper in the slag is largely in the form of metallic copper and good recovery by flotation can be obtained by slow cooling the slag at ambient temperature to promote copper crystal growth. More study is needed to determine the optimum cooling cycle for maximum copper crystal growth.
National slag association108 Кб...slags and magnesium slags are used, or are under investigation for potential applications, in cements, and that both copper and nickel slags can beIn recent years, "slag cement" has been commonly used to refer to either combinations of Portland cement and ground slag or to the ground slag alone.
However, when the dissolved copper in slag is just oxidic, as in direct white metal production or in converting process, this slag is quite attractive and can be regarded as the third copper ...
Copper slag abrasive is suitable for blast cleaning of steel and stone/concrete surfaces, removal of mill scale, rust, old paint, dirt etc. Suitable for SA-3, SA-2 and SA-2. Copper slag blasting media/grit is manufactured of the granulated slag of copper refineries, and used for blast-cleaning of metal surface.
Manufacturing process of copper production produces enormous amount of the copper slag which contains required chemical properties, so it can be used as construction material. This paper contains information regarding survey of copper slag manufacturing process and different uses of copper slag.
Copper slag abrasive is dense enough to be reclaimed via a Cyclone separator in coarser sizes only. It has a 115 to 120#'s/cubic foot. THIS IS A HIGHER DENSITY THAN COAL SLAG (~20% HIGHER) AND WILL THUS BLAST FASTER THAN COAL SLAG, AND YOU CAN …
Copper slag blasting. Abrasive shots Copper Slag is an aggressive abrasive frequently used in new steel and steel maintenance applications. Its bulk density and angular shape give it an aggressiveness that provides clean, fast-cutting action, considerably increasing production rates.
Teniente converter and El Teniente slag cleaning furnace can be represented in Figure 2 by the dotted and the dashed lines. The dotted line corresponds to the condition of coexistence of white metal containing about 75 wt.% of copper, slag nearly saturated with magnetite and silica with high copper oxide activity 10-2–10-3 and gas phase with
May 01, 2007· Hence, copper slag can be used (2.5%) in raw mix for OPC and (35%) in manufacture of PSC. The material does not have any adverse impact on the performance of OPC and PSC. The users of copper slag in OPC / PSC can be assured of the non-leachability of copper and other elements.
Jul 27, 2021· Copper slag is one of the possible abrasives that can be used. Other blasting media that can be considered are sand, glass, plastic or water. Blasting with copper slag is generally done for two different purposes. First of all, copper slag blasting is an effective way to remove mill scale, rust, dirt, paint and other coatings from metal ...