2011-9-1 · Highlights Large amounts of fly ash are produced as a result of burning diesel fuel in power stations. Ni is selectively eluted from the FA using NH 3 solution and was precipitated as NiS. V is extracted from Ni-free-FA by Na 2 CO 3 solution and precipitated by NH 4 Cl. The proposed method herein showed a high recovery (97%) for both metals.
Read More2012-5-13 · Fly 2 ash Heavy fuel Vanadium Nickel Separation a b s t r a c t In Jordan, large amounts of fly ash (FA) are produced as a result of burning heavy fuel in power plants. Extraction of metals from FA is an important industrial/environmental issue to
Read More2022-2-1 · 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 ...
Read MoreIn 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 involving either solvent extraction or selective precipitation.
Read More2007-1-1 · 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 ).
Read More2020-8-24 · vanadium, heavy fuel, fly ash, leaching, extraction 1. Introduction The power generation station that uses heavy oil produces a solid residue called fly ash [1]. Fly ash generated during oil combustion. Fly ash is rich in Ni, V, Fe, Mo, Mg, Na and C and among these metals Ni and V are the most valuable.
Read More1998-1-9 · Vapor phase extraction of vanadium, nickel and magnesium from a fly ash of Orimulsion®, a new fuel, has been investigated using high-temperature chlorination with N 2 –Cl 2 or air–Cl 2 gas mixture. The use of N 2 –Cl 2 gas was suited for a selective chlorination of metal components. Vanadium and iron were extracted at 400 and 500 °C, respectively, as
Read MoreThe production of refinery grade oil from the Alberta tar sands deposits as currently practiced by Suncor (formally Great Canadian Oil Sands Ltd.—GCOS) generates a substantial amount of petroleum coke fly ash which contains appreciable amounts of valuable metals such as vanadium, nickel and titanium. Although the recovery of vanadium from petroleum ash is a well
Read More2013-10-10 · fine fly ash with a long atmospheric residence time. Vanadium concentrates on the surface of particulate matter from coal combustion. The concentration of vanadium in fly ash from residual fuel-oil burning averages around 8% (range 2-18%), representing 56% (39-74%) of the vanadium concentration in fuel.
Read More2018-8-19 · Al-Ghouti MA, Al-Degs YS, Ghrir A, Khoury H, Ziedan M (2011) Extraction and separation of vanadium and nickel from fly ash produced in heavy fuel power plants. Chem Eng J 173(2011):191–197 CrossRef Google Scholar
Read More2012-5-13 · Fly 2 ash Heavy fuel Vanadium Nickel Separation a b s t r a c t In Jordan, large amounts of fly ash (FA) are produced as a result of burning heavy fuel in power plants. Extraction of metals from FA is an important industrial/environmental issue to
Read More2022-2-1 · 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 ...
Read MoreThe production of refinery grade oil from the Alberta tar sands deposits as currently practiced by Suncor (formally Great Canadian Oil Sands Ltd.—GCOS) generates a substantial amount of petroleum coke fly ash which contains appreciable amounts of valuable metals such as vanadium, nickel and titanium. Although the recovery of vanadium from petroleum ash is a well
Read More2012-9-1 · W ith continual development of resources in the world, high-grade ores are becoming exhausted gradually.[] With the present sources insufficient to supply the demand, secondary sources are increasingly exploited for recovery of metals such as vanadium.[] The oil-fired fly ash (OFA) that is produced during the combustion of heavy oil for energy production is an
Read More2022-1-27 · Vapor phase extraction of vanadium, nickel and magnesium from a fly ash of Orimulsion®, a new fuel, has been investigated using high-temperature chlorination with N2–Cl2 or air–Cl2 gas mixture.
Read More2020-8-24 · vanadium, heavy fuel, fly ash, leaching, extraction 1. Introduction The power generation station that uses heavy oil produces a solid residue called fly ash [1]. Fly ash generated during oil combustion. Fly ash is rich in Ni, V, Fe, Mo, Mg, Na and C and among these metals Ni and V are the most valuable.
Read More2012-2-7 · flyash followed by a combustion step to remove carbon and sulphur. The treated ash is then reduced by smelting in a DC arc furnace, using ferrosilicon or aluminium, to produce a vanadium alloy and a disposable slag. A testwork program was designed to demonstrate the application of this flowsheet to the ash. The test program covered 60 kVA induction
Read More2010-11-12 · treatment system as fly ash. The fly ash from burning petroleum oil is an important secondary resource for vanadium, after the primary resource of the ore concentrates and the metallurgical slag. According to the information in literature [6], hydrometallurgical processing is usually found as the
Read More2018-8-19 · Al-Ghouti MA, Al-Degs YS, Ghrir A, Khoury H, Ziedan M (2011) Extraction and separation of vanadium and nickel from fly ash produced in heavy fuel power plants. Chem Eng J 173(2011):191–197 CrossRef Google Scholar
Read More2021-3-12 · Extraction and separation of vanadium and nickel from fly ash Extraction of metals from FA is an important industrial/environmental issue
Read MoreIn the world, large amounts of fly ash(FA) are produced as a result of burning heavy oil in power plants every year. Extraction of metals from FA is an important industrial/environmental issue to assess metal’s mobility and applications. Large...
Read MoreVanadium and nickel have many and continuously increasing industrial applications (Vitolo et al., 2001;Tsygankova et al., 2011). Among the compounds of vanadium in
Read Moreash. Fly ash is a fine dust generated during the combustion of fossil fuel that is mostly captured by electrostatic precipitator or other dust collection systems. The main characteristics of oil fly ash are the high concentrations of unburned carbon and vanadium.2,3 Therefore, researchers have been focused on its use as a secondary source for ...
Read More2012-9-1 · W ith continual development of resources in the world, high-grade ores are becoming exhausted gradually.[] With the present sources insufficient to supply the demand, secondary sources are increasingly exploited for recovery of metals such as vanadium.[] The oil-fired fly ash (OFA) that is produced during the combustion of heavy oil for energy production is an
Read More2012-2-7 · flyash followed by a combustion step to remove carbon and sulphur. The treated ash is then reduced by smelting in a DC arc furnace, using ferrosilicon or aluminium, to produce a vanadium alloy and a disposable slag. A testwork program was designed to demonstrate the application of this flowsheet to the ash. The test program covered 60 kVA induction
Read More2017-5-31 · Oil fly ash (OFA) is a by-product originated from burning of crude and residual oil for ... vanadium from the OFA, however, base leaching may require additional leaching processes to recover nickel and carbon. Therefore, strong acid, sulfuric acid in this case with concentration ranging from 0.5N to 1N, solid/liquid ratio of 1:10 and mild ...
Read More2010-11-12 · treatment system as fly ash. The fly ash from burning petroleum oil is an important secondary resource for vanadium, after the primary resource of the ore concentrates and the metallurgical slag. According to the information in literature [6], hydrometallurgical processing is usually found as the
Read More2018-8-19 · Al-Ghouti MA, Al-Degs YS, Ghrir A, Khoury H, Ziedan M (2011) Extraction and separation of vanadium and nickel from fly ash produced in heavy fuel power plants. Chem Eng J 173(2011):191–197 CrossRef Google Scholar
Read More2020-1-10 · In this work, vanadium (V) was selectively extracted from fuel-oil fly ash using a leaching process utilizing organic acids extracted from lemon juice with assistance from ultrasound and H2O2. Response Surface Methodology (RSM)
Read More2010-7-6 · Vanadium recovery from oil fly ash by leaching, precipitation and solvent extraction processes [J]. Waste Management, 2007, 27(3): 425−438. [3] ZENG L, LI Q G, XIAO L S. Extraction of vanadium from the leach solution of stone coal using ion exchange resin
Read More