Stone crushing unit workers suffer from particulate matters and respirable silica at work and in their residents nearby. The present study was undertaken to evaluate the area and personal exposure concentration of respirable particulate matters and silica in workplaces and in surrounding villages.
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WhatsAppGet PriceGet A QuoteSlag sample A, which contained 1.6 percent copper, comprised a 5-ton composite of four slag skims taken over a normal 14-hour converting cycle. A portion of each skim was poured into a skimming ladle, and the mass was allowed to cool slowly for 31 hours before dumping and crushing.
WhatsAppGet PriceGet A Quotea local crushing unit having 20mm nominal size, well graded aggregate according to IS: 383[23].The specific gravity was 2.83, while the bulk density was 1.5 gram/c.c. 5.4 Water: Potable water was used in the experimental work for both mixing and curing companion specimens. 5.5 Copper slag: The Physical and chemical properties are
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WhatsAppGet PriceGet A QuoteCopper slag is a byproduct of the copper smelting industry. Generally, 2.0–3.0 tons of copper slag is generated per ton of copper produced in the whole process, depending on the properties of the copper sulfide concentrates and the operating conditions.1,2 It is estimated that approximately 12 million tons of copper slag is discharged into the environment annually in China.
WhatsAppGet PriceGet A QuoteSlag sample A, which contained 1.6 percent copper, comprised a 5-ton composite of four slag skims taken over a normal 14-hour converting cycle. A portion of each skim was poured into a skimming ladle, and the mass was allowed to cool slowly for 31 hours before dumping and crushing.
WhatsAppGet PriceGet A QuoteSlag sample A, which contained 1.6 percent copper, comprised a 5-ton composite of four slag skims taken over a normal 14-hour converting cycle. A portion of each skim was poured into a skimming ladle, and the mass was allowed to cool slowly for 31 hours before dumping and crushing.
WhatsAppGet PriceGet A QuoteA unique reclamation project to recover precious and base metals from the reprocessing of slag produced from the old smelters of copper ore. The silicate slag from old smelting operations was systematically deposited into a semi-homogenous pile, with significant amounts of gold and other valuable metals "locked up" in the slag material.
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WhatsAppGet PriceGet A QuoteA. Slag is the glass-like by-product left over after a desired metal has been separated from its raw ore. While slags are generally used to remove waste in metal smelting, they can also serve other purposes, such as assisting in the temperature control of the smelting, and minimizing any re-oxidation of the final liquid metal product before the molten metal is removed from the furnace and used
WhatsAppGet PriceGet A QuoteCopper slag is a by-product created during the copper smelting and refining process. As refineries draw metal out of copper ore, they produce a large volume of non-metallic dust, soot, and rock. Collectively, these materials make up slag, which can be used for a surprising number of applications in the building and industrial fields.
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12.3 Primary Copper Smelting 12.3.1 General1 Copper ore is produced in 13 states. In 1989, Arizona produced 60 percent of the total U. S. ore. Fourteen domestic mines accounted for more than 95 percent of the 1.45 megagrams (Mg)
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WhatsAppGet PriceGet A QuoteAir-cooled copper slag has a black colour and glassy appearance. The specific gravity varies with iron content, from a low of 2.8 to as high as 3.8. The unit weight of copper slag is somewhat higher than that of conventional aggregate. The absorption capacity of the material is typically very low (0.13%).
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WhatsAppGet PriceGet A Quoteof copper slag as a fine aggregate in high strength concrete” Materials and Design, Elsevier science Ltd, Vol. 31, 2010, pp. 2878–2883. [3] Ramzi Taha, Khalifa S.Al-Jabri, Abdullah H. Al-saidy “Effect of copper slag as a fine aggregate on the properties of cement mortars and concrete”,
WhatsAppGet PriceGet A QuoteCopper Slag Air-cooled copper slag has a black color and glassy appearance. As a general rule, the specific gravity will vary with iron content, from a low of 2.8 to as high as 3.8. (15) The unit weight of copper slag is somewhat higher than that of conventional aggregate. The absorption of the material is typically very low (0.13 percent).
WhatsAppGet PriceGet A QuotePer unit production o f copper, Crushing and concentration, Copper slag which is a by- product of the manufacture of copper is one of the promising industrial byproducts. It can be used in
WhatsAppGet PriceGet A QuoteThe Egyptian copper smelting furnace was filled with a mixture of copper ore, charcoal and iron ore to act as a flux. It was blown for several hours by foot or hand bellows. By the end of the smelt the copper had separated from the slag, which was tapped off.
WhatsAppGet PriceGet A QuoteThe slag pile is located approximately six miles from the historic United Verde Copper Mine in Jerome, Arizona, which produced some of the richest copper ore ever mined in the U.S. Clarkdale housed a smelter operation for the United Verde Mine, and when smelting activities ceased in 1947, a metal-bearing slag pile was left at the Clarkdale site.
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WhatsAppGet PriceGet A QuoteA. Slag is the glass-like by-product left over after a desired metal has been separated from its raw ore. While slags are generally used to remove waste in metal smelting, they can also serve other purposes, such as assisting in the temperature control of the smelting, and minimizing any re-oxidation of the final liquid metal product before the molten metal is removed from the furnace and used
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WhatsAppGet PriceGet A QuoteAir-cooled copper slag has a black colour and glassy appearance. The specific gravity varies with iron content, from a low of 2.8 to as high as 3.8. The unit weight of copper slag is somewhat higher than that of conventional aggregate. The absorption capacity of the material is typically very low (0.13%).
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