2 edition of Recovery of copper from granulated blast furnace slag found in the catalog.
Recovery of copper from granulated blast furnace slag
C. E Jordan
Includes bibliographical references
|Statement||by C. E. Jordan, G. V. Sullivan, and E. D. Scott|
|Series||Report of investigations - Bureau of Mines ; 8279|
|Contributions||Sullivan, G. V., joint author, Scott, E. D., joint author, United States. Bureau of Mines|
|The Physical Object|
|Pagination||, 13 p. :|
|Number of Pages||13|
Ground granulated blast furnace slag (GGBFS) is designated in ASTM C and consists mainly of silicates and aluminosilicates of calcium. GGBFS is divided into three classifications based on its activity index. Grade 80 has a low activity index and is used primarily in mass structures because it generates less heat than portland cement. Granulated copper slag is more porous and therefore has lower specific gravity and higher absorption than air-cooled copper slag. The granulated copper slag is made up of regularly shaped, angular particles, mostly between mm (3/4 in) and mm (No. sieve) in size. Phosphorus Slag. Crystallization of Blast Furnace Slags Pertaining to Heat Recovery Shaghayegh Esfahani Doctorate Materials Science and Engineering University of Toronto Abstract Heat recovery from blast furnace slags is often contradicted by another requirement, to generate amorphous slag for its use in cement by: 1. Granulated Blast Furnace Slllg During the process of manufacture of iron, granulated blast furnace slag is obtained as a by-product. The main constituents present in Indian slags are reported in Table 1. In general, the Indian *Author to whom correspolildence should be addressed Constituents Silica Alumina Calcium oxide Magnesium oxide Cited by: 5.
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Recovery of copper from granulated blast furnace slag. [Washington]: Dept. of the Interior, Bureau of Mines, (OCoLC) Material Type: Government publication, National government publication: Document Type: Book: All Authors / Contributors: C E Jordan; G V Sullivan; E D Scott; United States. Bureau of Mines.
The Bureau of Mines conducted bench- and small-scale continuous studies to develop a process for recovering a recyclable copper product from waste, granulated, blast furnace slag. The investigation was part of the Bureau's secondary resource recovery program.
Blast furnace slag is a nonmetallic coproduct produced in the process in the production of iron from iron ore or iron scrap. It consists primarily of silicates, aluminosilicates, and calcium-alumina-silicates. The molten slag, which absorbs much of the sulfur from the charge, comprises about 20 percent by mass of iron production.
Recovery of Zn, Cu, and Fe from the copper smelter slag was studied. • Slag was treated with NH 4 Cl at °C and product was subjected to water leaching.
Metal recoveries to the solution were % Zn, % Cu, and % by: Ground-granulated blast-furnace slag (GGBS or GGBFS) is obtained by quenching molten iron slag (a by-product of iron and steel-making) from a blast furnace in water or steam, to produce a glassy, granular product that is then dried and ground into a fine -granulated blast furnace slag is highly cementitious and high in CSH (calcium silicate hydrates) which is a.
Various amounts of acid were used to leach the copper slag. Figure 3 shows the effect of acid amount on the recovery of copper.
The recovery of copper from the copper slag increased with an increase in the quantity of acid. The reaction was carried out with no water addition. Figure Size: KB. BOF steel slag is a main by-product in steelmaking. The valorization of BOF slag is good for the industry and the environment.
In the present study, the carbo-thermic reduction of. What is Slag. There are two distinct types of slag produced at the BlueScope Steel Port Kembla Site; Blast Furnace Slag and Steel Furnace (or BOS) Slag.
BLAST FURNACE SLAG. Iron is extracted from iron ore in a blast furnace by a process known as reduction.
The raw materials - iron ore, coke and fluxes - are fed into the top of the furnace. * The majority of components in Granulated Blast Furnace Slag are various glassy Metallic Silicates (Iron, Calcium, Magnesium, Aluminum, and Titanium Silicates), Recovery of copper from granulated blast furnace slag book Dicalcium Silicate (Ca 2 SiO 4)Merwinite (Ca 3 MgSi 2 O 8)and Gehlenite (Ca 2 Al 2 SiO 7) The recovery of copper from reverberatory furnace slag utilizing flotation has been studied.
The effective factors such as particle size, pH, the amount and type of collector and additives, and. Slag handling is an important aspect of modern blast furnace operation.
Today, blast furnace slag is a saleable product (granulated slag sand used as CO 2-friendly substitute of clinker in cement production) rather than a difficult and costly waste Wurth has developed the INBA ® slag granulation process, incorporating our proprietary dynamic INBA dewatering drum.
High frequency induction melting furnace apparatus for recovery of Fe, Cu from copper smelting slag. Figure 3. Experimental apparatus for High frequency induction meting. RESULTS AND DISCUSSION. Theoretical Considerations.
In this experiment, Fe and Cu contained in the copper smelting slag were recovered to separate the pig iron and the. Blast furnace slag is a byproduct of iron making. For kg of iron, approximately kg of slag is formed. When the melted slag leaves blast furnace, its temperature is about K.
In Japan, approximately 24 million tons of blast furnace slag is formed annually (1). The heat of melted slag produced annually in Japan is. RECOVERY OF COPPER FROM COPPER BLAST FURNACE SLAG.
Copper scrap is treated using reverberatory furnace for melting anode-grade copper (i.e., in the slag. Recovery of metals from melting furnace slag has become an important branch of the recycling. The separation of metal from the waste part.
A wide variety of ground granulated blast furnace slag options are available to you, There are suppliers who sells ground granulated blast furnace slag onmainly located in Asia. The top countries of suppliers are India, China, and India, from which the percentage of ground granulated blast furnace slag supply is 13%, 71%, and.
The chapter deals with studying antimicrobial efficiency of granulated blast-furnace slag with fineness of (1Sa) and m2/kg (1Sb), air-cooled blast-furnace slag (2S), demetallized steel slag (3S), calcareous ladle slag (4S) and copper slag (5S), respectively. The efficiency has been tested on G+ bacteria—Staphylococcus aureus, Bacillus subtilis, Micrococcus luteus; G− Author: Július Strigáč, Nadežda Števulová, Jozef Mikušinec, Ľudovít Varečka, Daniela Hudecová.
Example granulated blast furnace slag. Sidar Group-Geomallas. Loesche Mills for Cement and Granulated Blast Furnace - Duration: Pelletized Blast Furnace Slag.
Fineness: Granulated blast furnace slag is a glassy granular material, and its particle distribution, shape, and grain size vary, depending on the chemical composition and method of production, from popcornlike friable particles to dense, sand-size grains.
Pelletized blast furnace slag, in contrast to air-cooled and expanded blast furnace slag. Copper smelting slag is a solution of molten oxides created during the copper smelting and refining process, and about million tons of copper slag are generated annually in Korea.
The oxides in copper smelting slag include ferrous (FeO), ferric oxide (Fe2O3), silica (SiO2 from flux), alumina (AI2O3), calcia (CaO) and magnesia (MgO).
The main oxides in copper slag, which Author: Jei-Pil Wang, Urtnasan Erdenebold. Granulated Blast Furnace Slag Granulated blast furnace slag is a glassy granular material that varies, depending on the chemical composition and method of production, from a coarse, popcornlike friable structure greater than mm (No.
4 sieve) in diameter to dense, sand-size grains passing a mm (No. 4) sieve. View detailed Export data, price, monthly trends, major exporting countries, major ports of granulated blast furnace slag.
Recovery of copper from copper slag and copper slag flotation tailings 75by oxidative leaching Table 1.
Chemical compositions of the copper smelter slag and the slag flotation tailings Constituent Content (wt.%) Copper Slag Slag Flotation Tailings Cu – total Cu – oxides Cu – sulphides SiO 2 Al 2 O.
The furnace can be designed with effective working volume minimal m3, suitable for the recovery of anode slime, PM-containing smelting slag, lead refining dross and all kinds of dust.
It can also treat secondary material like scrap copper, WEEE/PCB/IC and etc. For lead blast furnace slags, it is therefore appropriate to recover the lead and zinc in separate solutions to subsequently permit effective recovery of both metals.
If the metal values were not important then a bulk leach of the two metals or a simple lead leach would be possible to render the slags non-hazardous. Granulated Blast Furnace Slag.
Granulated blast furnace slag is a glassy granular material that varies, depending on the chemical composition and method of production, from a coarse, popcornlike friable structure greater than mm (No. 4 sieve) in diameter to dense, sand-size grains passing a mm (No.
4) sieve. To make use of waste heat of water quenching for blast furnace slag in production, this paper introduces and then analyzes some ways of waste heat recovery is used to power generation, sea water desalination and heating, in particular, indicates that the form of indirect heating of graining tower steam recycling equipment is the best most application and by: 1.
Samples of Ground Granulated Blastfurnace Slag are sent, periodically, to an independent laboratory for testing. USE This product is intended to be used in concrete either as a component of composite cements such as Blastfurnace Cement/High Slag Blastfurnace Cement or as a direct addition to the concrete mix by the concrete producer.
Ground granulated blast-furnace slag (GGBFS), sometimes simply referred to as “slag”, is a glassy granular material formed when molten blast-furnace slag is rapidly chilled, as by immersion in water.
It is a non-metallic product, consisting of silicates and aluminosilicates ofFile Size: 72KB. Copper loss in the slag of Khatoonabad flash smelting furnace is estimated to be about 1–3 %. At present, the electric slag cleaning furnace is used for the recovery of copper from slag.
However, due to low recovery efficiency of electric furnace along with high consumption of electrical energy and water, selection of a method to enable minimum energy Cited by: 5. In Europe, the blast furnace developed gradually over the centuries from small furnaces operated by the Romans, in which charcoal was used for reducing ore to a semisolid mass of iron containing a relatively small amount of carbon and slag.
The iron mass was then hammered to remove the slag, yielding wrought iron. Increases in the height of the. blast furnace slag for Portland cement, ﬁ nely granulated blast furnace slag (MSJŠ) from the company Kotouč Štramberk, Ltd.
was used. An equipment ﬂ owsheet of a grinding plant for granulated blast furnace slag is pre-sented in Figure 1. The ﬁ ner is the grinding of slag, the better are some properties, especially strength (primary,Cited by: Figure Low-grade copper recovery electrolyte in the refinery cells or sold as a product.
Smelting of low-grade copper scrap begins with melting in either a blast or a rotary furnace, resulting in slag and impure copper. If a blast furnace is used, this copper is charged to a. Ground granulated blastfurnace slag. Ground granulated blastfurnace slag (GGBS) is the slag from iron producing blastfurnaces that is rapidly quenched in water and then ground into a powder.
Chemically it is similar to, but less reactive than, Portland cement (PC). When mixed with water it will hydrate in a similar way to Portland cement.
Abstract. The experiments of biomass char gasification in granulated blast-furnace (BF) slag using CO 2 as gasification agent were carried out isothermally with a thermogravimetric analyzer between and K, systematically.
The reaction rate increased first and then decreased with the increasing time in all by: 4. Granulated blast furnace slag Just like air-cooled blast furnace slag, this slag has a hydraulic property and there is no risk of alkali-aggregate reaction.
Because of the powerful latent hydraulic property that results from fine grinding, this slag is used in. Granulated Blast furnace Slag is the by - product obtained in the manufacture of pig Iron in blast furnaces at around ° to °C in the molten form.
The slag is obtained by rapidly chilling the molten ash from the furnace by means of chilled water and is ground about m2/kg of fineness by using state of the art grinding mill to make GGBS.
The ground granulated blast furnace slag (GGBFS) is a by-product of iron manufacturing which when added to concrete improves its properties such as workability, strength and durability.
This material is obtained by the heating of iron ore, limestone and coke at a temperature about degree Celsius. The process is carried out in a blast : Neenu Arjun. use of blast furnace slag2 in the light of the Commission Communication, the Environment Agency is now satisfied that BFS produced in the UK as Air Cooled Blast Furnace Slag or Ground Granulated Blast Furnace Slag is not a waste.
It should be noted that any imported BFS must also fulfil the relevant legal criteria in order to be shipped as a. a granulation process that produces cool, dry blast furnace slag without impairing its hydraulic properties _.5 Attempts have also been made to atomise the blast furnace slag in order to save on grinding energy, which makes up approx.
45% of the primary energy input for ground granulated blast furnace slag production. Moreover, there. (2) Granulated slag is the glassy, granular product formed when the molten blast furnace slag is rap-idly chilled by immersion in water.
Basic Use: Aggregates are used for all types of base and subbase construction. In addition to applications requiring graded aggregates, pit run blast furnace slag is extensively used for subbaseFile Size: KB. View detailed Export data, price, monthly trends, major exporting countries, major ports of blast furnace slag.The molten blast furnace slag is quenched almost immediately to form a material generally smaller than a #4 sieve.
The efficiency, which the molten blast furnace slag is rapidly chilled, as well as the chemical composition of the slag source, largely determines its cementitious properties for use in concrete.The blast furnace slag can impart many desirable properties to the masonry units such as lighter weight and increased fire resistance.
According to studies as far back as by Penn State University, Ohio State University, U.S. Department of Agriculture, Auburn University, and Canadian research, Ag-Slag applications have been equivalent to.