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Chromium slag and contaminated soil are significant risks to human health Their detoxification is a difficult problem In this study we tried to detoxify the chromium slag and contaminated soil by a solid reduction methodFerrochrome or Ferrochromium FeCr is a type of ferroalloy that is an alloy between chromium and iron generally containing 50 to 70 chromium by weight
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slag and transported to the slag/melt interphase where chromium oxides were reduced by silicon dissolved in the steel this mechanism was described by Durinck etFerrochrome slag generated from alumino thermi method piles up in large quantities poses many problems to the environment and contaminates ground water on long run needs
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ACTIVITY OF CHROMIUM OXIDE IN CAO SIO 2 BASED SLAGS AT K 113 Introduction Chromium is one of the indispensable elements as a component of high quality steels and a number ofuse of chromium slag to instead of gravel and has a broad application prospect as the semi rigid base or subbase Hexavalent chromium Cr VI is the first category of heavy metal pollutants it has strong oxidative toxicity and causes damage to human body crops organism Hexavalent chromium is also strong carcinogenic and mutagenic characteristics Chromium and its compounds pollution is
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At this Center results from this method have been used almost exclusively as data for the calculation of the total degree of reduction in a smelter batch rather than as an indicator for the metallization of chromiumSpeciation Of Chromium In Soils Plants And Waste Water At A Ferrochrome Slag Dump In Gweru iosrjournalsorg 45 Page
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Alibaba offers 81 magnesium and chromium slag ball products About 2 of these are other metals metal products A wide variety of magnesium and chromium slag ball options are available to you Levels of chromium in the air are generally higher in urban areas and in places where chromium wastes or slag from production facilities were used as landfill Chromium wastes have been detected in many landfills and toxic waste sites across the country usually in combination with other metals and chemicals
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Cr III and Cr VI are both present in chromium slag but the latter ionic form is much more toxic and carcinogenic to humans due to its faster mobility high solubility and strong oxidation 15 16 17Waste slag constitutes a large potential source of chromium contamination of ground waters particularly under the enhanced leaching action of acid precipitation on waste slag dumps Numerous investigations into the effect of acid precipitation on vegetation surface waters animal life and stone architecture are to be found in the literature The potential effects of acid precipitation on
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A FLUID DYNAMICS SIMULATION OF CHROMIUM RECOVERY 465 Introduction The Argon Oxygen Decarburization AOD process which was developed by the Linde Corporation in the s is theIn this paper a chemical plant of chromium salt was selected as the typical chromium slag contaminated site The range and level of chromium in soil were tested by way of digestion and leaching in order to investigate the pollution of chromium slag
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Chromium and manganese are also produced here though not often shown as a source in referenc I do not know the status of the mines and the reserves and the website scarcely mentions mining Petroleum coal and coke are imported to fuel the mineral industri I was only dimly aware of New Caledonia before writing this article and had no idea that it was a mineral powerhouseMagnesium And Chromium Slag Retaining Manufacturers Factory Suppliers From China With a wide range top quality realistic costs and good company we are going to be your most effective company partner We welcome new and aged clients from all walks of daily life to call us for long term small business interactions and acquiring mutual
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The chromium elution behavior of stainless steel SS slag depends highly on the chromium distribution and the molten modification process proved to effectively improve the chromium enrichment in stable phas However the phase transformation and variation of chromium stability during theResidents walk past a chromium slag hill in Xiaoxin village Yunnan province Photograph Stringer/China/Reuters This article by Feng Wei was originally published in
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This study reports the role of chromium as a double edged sword in the preparation of refractory materials from ferronickel slag with the addition of sintered magnesia based on the thermodynamic analysis and experimental exploration of the phase transformation of ferronickel slag during the slag Ochola and Moo Young noted that besides iron steel slag is comprised of other minerals with the potential of adsorbing Cr VI and effectively reducing its concentration in solution
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THE EFFECTS OF TEMPERATURE SLAG CHEMISTRY AND OXYGEN PARTIAL PRESSURE ON THE BEHAVIOUR OF CHROMIUM OXIDE IN MELTER SLAGS Neill J Bartie This thesis is presented in partial fulfilment of the requirements for the degreeDynamic leaching test for chromium slag To investigate the leaching procedure and influencing factors for chromium slag three samples of chromium slag each with a sample size of less than
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