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Mobile crushers can also be called mobile crushing plants, mobile crushers, etc. It is an inevitable product of high-tech crushing technology in the new era, and its main features are that it can be operated mobilely, can walk freely, and is more convenient for transitions, ensuring that the equipment While the production is safe, the work process is more reliable.
·In this study it was aimed to extract vanadium V and nickel Ni from a petroleum coke ash PCA using a roasting process without additives followed by leaching with sulfuric acid H2SO4 The experiments were designed based on the Taguchi approach taking into account the parameters of temperature acid concentration time and solid ratio
·of vanadium in fly ash [13] Vanadium in stone coal has organic affinity and mineral affinity and the migration of vanadium during combustion process depends on their affinities and on the physical changes and chemical reactions [14 17] Most of the vanadium with low valency V III and V IV is oxidized to V V in high tempera
·Among the compounds of vanadium in the fly ash vanadium pentoxide V 2 O 5 and vanadic oxide V 2 O 4 are slightly soluble in water but dissolve easily in acid and alkaline solutions Abdel
·product could be obtained for the further vanadium recovery process Therefore 10 g of the oil fly ash C for 4 h After the carbon removal process the vanadium concentration in the sample was increased from Fig 1 Proposed flow sheet of vanadium extraction Vanadium Recovery from Oil Fly Ash by Carbon Removal and Roast Leach
·The process developed involves a high temperature 875 to 950 °C roasting of the fly ash in the presence of sodium chloride and water vapor carried out in a rotary screw kiln followed by dilute
·Semantic Scholar extracted view of "A study of the extraction of vanadium and nickel in oil fired fly ash" by Shang Lin Tsai et al Recovery of vanadium and nickel from an oil fly ash is studied in a two step leaching process carried out under ambient pressure without calcination In the leaching nickel is dissolved with NH 4 Expand 41
·This research mainly focuses on the recovery of vanadium from oil fly ash by carbon removal and the roast leach process The oil fly ash contained about 85% unburned carbon and % vanadium by weight A vanadium enriched product was obtained after carbon removal and the vanadium content of this product was 19% by weight Next the vanadium
·1 Introduction Fly ash is a solid residue which is collected in off gas treatment system of power plants using heavy fuel oils This residue is an important secondary resource for vanadium after primary resource of the ore concentrates and the metallurgical slag Xiao et al 2010 The production of these fly ashes is of environmental concern Tsai and Tsai 1998 Al
Shang Lin Tsai and Min Shing Tsai A study of the extraction of vanadium and nickel in oil fired fly ash Resources Conservation and Recycling 22 163 176 1998 Article Google Scholar Y Xiao H Jalkanen Y Yang C R Mambote extern and R Boom Thermal Processing of Petroleum Fly Ash for Vanadium Recovery
·The dispersion of fine particles of oil fly ash and the high solubility of vanadium may cause a dispersion of vanadium in water and soil Due to the low toxicity of vanadium compared to other heavy metals the accepted levels for vanadium in water supplies and irrigation water are 200 ppb and 10 mg L −1 respectively Juste et al 1995
·The recovery of vanadium from heavy oil fly ash having a high carbon content was performed using a four step process consisting of a preliminary burning in order to reduce the carbonaceous
The composition of the fly ashes is reported in Table 1 Of the three oil fired fly ash samples sample C is characterised by a high carbonaceous fraction and by a lower vanadium content The Orimulsion fly ash shows a much higher vanadium content than the oil fly ashes Due to the Table 1 Main constituents of the fly ashes Žwt % Oil fly ashes 2
·Along with the studies on Ga potential extraction of vanadium from this fly ash was also investigated Vanadium is commonly recovered from titaniferous magnetite ores and as V 2 O 5 from by products of crude oil being mainly used to produce high strength and low alloy steels [22] Since 50 50% coal/petcoke blend is gasified in Puertollano IGCC plant fly ash is
·The paper proposes an environmentally friendly process for recovering germanium lithium and vanadium from coal fly ash CFA using thermal pretreatment and hydrometallurgy
： The paper proposes an environmentally friendly process for recovering germanium lithium and vanadium from coal fly ash CFA using thermal pretreatment and hydrometallurgy To this end three sets of experiments were conducted parameter screening
·fly ash and BOF flue dust the free carbon and the source of vanadium in the fly ash; the source of iron and the high lime content in the BOF flue dust Addition of sand as a fluxing agent or FeSi as
·As a high temperature processing route an arc flash reactor was reported to process the fly ash using anthracite and petroleum coke as the reductant for producing ferronickel and reported an alternative flow sheet to recover vanadium from fly ash for ferrovanadium production drying de carburization de sulfurization and smelting
·Semantic Scholar extracted view of "Simultaneous recovery of vanadium and nickel from power plant fly ash optimization of parameters using response surface methodology " by E Nazari et al Salt roasting basic leaching is the process which was applied to separate and extract vanadium from steel making Expand 35 1 Excerpt;
·At first the formation of NiFe 2 O 4 by reacting the nickel and iron content of the fly ash was practiced through thermal processing To determine the optimum roasting condition resulting in the formation of NiFe 2 O 4 different experiments including roasting followed by acid leaching were carried roasting with air 100 g of the sieved fly ash
·Vanadium amount increased from in ash to V 2 O 5 wt% in slag It is generated in the production of metal manganese by the electrolysis process In this research EMR fly ash and clinker were blended to make fly ash based cementitious material FAC to investigate the effect of EMR on strength properties hydration
·After these preliminary tests the recovery of vanadium from the fly ash samples was performed on a laboratory scale and the overall yield of the process was determined By washing the precipitate it was possible to reduce the concentration of the impurities and to allow its use for the production of ferrovanadium alloys
·DOI / Corpus ID 24735074; Recovery of gallium and vanadium from gasification fly ash article{Font2007RecoveryOG title={Recovery of gallium and vanadium from gasification fly ash } author={Oriol Font and Xavier Querol and Roberto Juan and Raquel Casado and Carmen R Ruiz and Angel L{ o}pez Soler and Pilar
In order to reduce the environmental impact due to land disposal of oil fly ash from power plants and to valorize this waste material the removal of vanadium was investigated using leaching processes acidic and alkaline treatments followed by a second step of metal recovery from leachates involv
·As the demand for metals grows globally the processing of secondary metal resources has become highly essential Ghassa et al 2020; Golzar Ahmadi and Mousavi 2021 Coal fly ash CFA is one of the most important industrial wastes regarding environmental and economic concerns Bu et al 2021
·This study investigated the use of microwave assisted leaching to recover the vanadium V and nickel Ni of fly ash collected from power plants The fly ash sample was characterized using XRF ICP OES powder X ray diffraction FESEM and a laser particle size analyzer Chemical separation of fly ash components by thermal processing using
·The fly ash produced by oil sands operations in northern Alberta represents a large high grade potential resource for vanadium production in Canada After extensive batch testing a conceptual process flow sheet for the recovery of
