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Handling and transportation of feed materials is an essential part of the secondary lead smelting process. Material is primarily transported through the use of mobile equipment (forklifts, frontend loaders). Proper operator training, prudent work practices, and good housekeeping are key in ...
Pyrometallurgical processing of lead ores generates large amounts of slag which is stockpiled as chunk or granules. Romanian dump heaps of such slag produced in the period 1972–1998, occupy an area of 4522 m 2 and a volume of 6616 m assess the possibility of using this material in road construction, a complex characterisation of this waste has been carried out.
9 days ago· Abstract. Reuse of waste is one of the main principles of sustainable development and circular economy. Secondary alkaline lead slag is a hazardous waste generated in the recycling process of leadacid batteries that may be suitable in construction materials.
Jul 12, 2019· Secondary alkaline lead slag (SALS), generated during lead–acid batteries recycling, is a hazardous waste due to its high reactivity, solubility, and migration of toxic elements. After pulverization caused by storage under atmospheric condition for 30 days, the SALS was sieved and coarse fraction (+ 1 mm) was returned to the recycling process.
The use of steel slag as an aggregate is considered a standard practice in many jurisdictions, with applications that include its use in granular base, embankments, engineered fill, highway shoulders, and hot mix asphalt pavement. Blast furnace slag products have been used successfully in virtually all phases of bridge construction.
A process for lead slag reduction subjects the slag to topsubmerged lance injection of oxygen containing gas and fuel, via a vertically suspended lance having its lower tip end submerged in the slag. The injection generates a combustion zone in the slag in which fuel is combusted and generates turbulent conditions forming a slag coating on the lower extent of the lance which is solidified by ...
In addition, utilization of granulated lead slag as a structural material in roads constructions is suitable under certain conditions (material for road base (subbase) under a waterproof coating ...
User Guidelines for Waste and Byproduct Materials in Pavement Construction ; Publication Number: FHWARD97148 User Guidelines for Waste and Byproduct Materials in Pavement Construction ... these slags are considered to have suitable engineering properties for such use. (5) Leadzinc slag from production of lead and zinc using the proprietary ...
Nov 17, 2013· This paper deals with the utilisation of ferronickel slag for the production of inorganic polymeric materials, ... fly ash and primary lead slag. J. Hazard. Mater. 205–206, 101–110 (2012) CrossRef Google Scholar. 19. Pontikes Y, Onisei S, Machiels L, Jones PT, Blanpain B.: On the use of secondary copper production fayalitic slag in ...
Slag is a byproduct of the metallurgical smelting process. Slag has a double role: it permits removal of impurities, known as gangue, from the melt by forming oxides. It also allows exchange reactions with the liquid metal, permitting control of the process in order for the desirable elements to ...
In this work, the preliminary study about the use of secondary lead smelting slag (SLSS) as an addition to Portland cement is presented. SLSS is a waste from a Colombian secondary lead smelter. The chemical, physical and mineralogical characteristics of the raw materials were evaluated by Xray fluorescence, particle size and Xray diffraction.
Primary and Secondary Lead Processing ... Depending on lead price, it is calculated that a 1% increase of lead in discard slag results in a revenue loss in excess of 1million. ... Use of lead as a material of construction in metallurgical operations. Stephens and T. Spence.
Green slag valorisation has been transformed from an academic concept into an industrial success story. In this article we review a number of these success stories and discuss the merits of legislation and green public procurement in view of stimulating the use of secondary (slag) .
Download Citation on ResearchGate | Utilization of secondary lead slag as construction material | Secondary lead slag, a waste product from battery smelting using CaCO3 as flux, has been ...
Secondary lead slag, a waste product from battery smelting using CaCO 3 as flux, has been investigated for its use as an admixture and/or aggregate in the production of concrete blocks. The slag was added as partial replacements of cement and/or aggregate. The results revealed that the oxide components of the slag were similar to those of ordinary Portland cement (OPC).
Reviewing the past, utilization of ironmaking slag has a long history. The broken slag from ironmaking was already REUTER, M., XIAO, Y., and BOIN, U. Recycling and environmental issues of metallurgical slags and salt fluxes. VII International Conference on Molten Slags Fluxes and Salts, The South African Institute of Mining and Metallurgy, 2004.
Dry density increased and water absorption decreased with the use of slags in concrete. In general, it can be concluded that the use of GGBFS and lead slag as fine aggregates in concrete is technically possible and useful in some cases, whereas the use of zinc slag has a negative effect on concrete.
Reuse of waste is one of the main principles of sustainable development and circular economy. Secondary alkaline lead slag is a hazardous waste generated in the recycling process of leadacid batteries that may be suitable in construction materials. The environmental impact of the use of lead slag ...
The primary applications for steel slag in the United States are its use as a granular base or as an aggregate material in construction applications. Disposal. While most of the furnace slag is recycled for use as an aggregate, excess steel slag from other operations (raker, ladle, clean out, or pit slag) is usually sent to landfills for disposal.
Furthermore, it is shown in test runs that a slag product suitable for building materials, a zincrich flue dust and a metallic lead phase can be produced by this technology. Oxidic slags from thermal zinc and lead production For worldwide primary and secondary lead winning, several processes are in use, the lead shaft furnace process, QLS
that lead to a flood of court procedures and to a discrimination of byproducts and products made of ... when it creases to be secondary row material ... Example of slag utilization in road construction in Hinedoara is the 4 bands road between Deva and Hunedoara (Figure 8), where the basic, foundation and binder was made from slag aggregates ...
Aug 24, 2014· Abstract. Pyrometallurgical processing of lead ores generates large amounts of slag which is stockpiled as chunk or granules. Romanian dump heaps of such slag produced in the period 1972–1998, occupy an area of 4522 m 2 and a volume of 6616 m assess the possibility of using this material in road construction, a complex characterisation of this waste has been carried out.
Reuse of metallurgical slag from the silicothermic magnesium production and secondary lead metallurgy Article in Metalurgia international 17(3):4653 · January 2012 with 28 Reads Cite this ...
Emery, J. J., "Slag Utilization in Pavement Construction," Extending Aggregate Resources, ASTM Special Technical Publication 774, American Society for Testing and Materials, 1982, pp. 95118. OECD. Use of Waste Materials and ByProducts in Road Construction. Organization for Economic Cooperation and Development, Paris, 1977. JEGEL.
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