A novel synergistic extraction method for recovering ...

13-6-2016· Vanadium is obtained from vanadium-bearing titanomagnetite ores, ferrophosphorus slags, stone coal, spent catalysts, and oil fly ashes , , . Recovery of vanadium is usually obtained by using the acid leaching process. When vanadium enters into the leaching liquor, solvent extraction is an effective method to separate and recover vanadium.

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EP2572006A1 - Method for the extraction and recovery of ...

A method (10) for the extraction and recovery of vanadium from its ores, the method (10) characterised by the steps of: (i) Acid leaching (12) of an ore containing vanadium and iron to extract vanadium and iron into solution; (ii) Passing the product (78) of the leach step (i) to a solid/liquid separation step (80); (iii) Passing the liquid product (82) of separation step (ii) to a solvent ...

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US4666512A - Method for recovering vanadium from …

Method for recovering vanadium from vanadium-containing ore Download PDF Info Publication number US4666512A. US4666512A US06/858,917 US85891786A US4666512A US 4666512 A US4666512 A US 4666512A US 85891786 A US85891786 A US 85891786A US 4666512 A US4666512 A US 4666512A Authority US United States Prior art keywords sodium vanadium

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US4243639A - Method for recovering vanadium from …

Method for recovering vanadium from petroleum coke Download PDF Info Publication number US4243639A. US4243639A US06/037,493 US3749379A US4243639A US 4243639 A US4243639 A US 4243639A US 3749379 A US3749379 A US 3749379A US 4243639 A US4243639 A US 4243639A Authority US United States Prior art keywords vanadate method according

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Method for recovering vanadium from vanadium …

19-5-1987· A method for recovering vanadium from vanadium-containing ores comprising the steps of roasting a vanadium containing ore with a sodium source to form a roasted product containing sodium vanadate; piling the roasted product to form at least one heap in a manner to provide multiple sections; passing an aqueous leaching solution successively through different sections of the at least one heap ...

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A method for recovery of iron, titanium, and vanadium …

3-2-2018· An innovative method for recovering valuable elements from vanadium-bearing titanomagnetite is proposed. This method involves two procedures: low-temperature roasting of vanadium-bearing titanomagnetite and water leaching of roasting slag.

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method for recovering vanadium from vanadium

Recovering vanadium oxides from petroleum coke by melting ... Pat. No. 4,243,639, Haas et al, METHOD FOR RECOVERING VANADIUM FROM PETROLEUM COKE, ... Get Price; Patent US4243639 Method for recovering … Try the new Google Patents, ... Method for recovering vanadium from petroleum coke ...

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WO2012065191A2 - Method for recovering molybdenum ...

Method for recovering molybdenum, vanadium, nickel, cobalt and aluminum from spent catalysts Download PDF Info Publication number WO2012065191A2. WO2012065191A2 PCT/US2011/066040 US2011066040W WO2012065191A2 WO 2012065191 A2 WO2012065191 A2 WO 2012065191A2 US 2011066040 W US2011066040 W US 2011066040W WO 2012065191 A2 WO2012065191 A2 WO ...

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CN101838743A - Method for recovering ferrum, vanadium ...

The invention relates to a method for recovering ferrum, vanadium, chromium and gallium from vanadium extraction tailings, belonging to the field of metallurgy. The technical problem solved by the invention is to provide the method for recovering the ferrum, the vanadium, the chromium and the gallium from the vanadium extraction tailings.

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A method for recovery of iron, titanium, and vanadium …

1-2-2018· An innovative method for recovering valuable elements from vanadium-bearing titanomagnetite is proposed. This method involves two procedures: low-temperature roasting of vanadium-bearing titanomagnetite and water leaching of roasting slag. During the roasting process, the reduction of iron oxides to metallic iron, the sodium oxidation of vanadium oxides to water-soluble …

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Method for recovering vanadium from petroleum coke …

Abstract. Petroleum coke containing inorganic compounds including vanadium is gasified with steam in the presence of an alkali metal salt gasification catalyst to produce a combustible gas and an inorganic ash composed primarily of said inorganic compounds and a water soluble alkali metal vanadate and the inorganic ash is placed in a sufficient amount of water to dissolve the vanadate compound ...

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Method for recovering vanadium from petroleum coke - …

6-1-1981· We claim: 1. A method for recovering at least about 70 weight % of the vanadium contained in petroleum coke which comprises: heating a mixture of petroleum coke containing inorganic compounds including vanadium and an alkali metal salt gasification catalyst in the presence of steam at a sufficient temperature to gasify the carbon in the coke with said steam and produce a combustible gas and ...

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Method of recovering vanadium from solutions

This method is implemented in practice in Chusovoy metallurgical plant. There is also known a method of hydrolytic precipitation of vanadium by neutralizing solutions, obtained after acid leaching of toxins, prebaked with calcium supplements [1, 2]. The method is implemented on AAOT “vanadium - …

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method for recovering vanadium from vanadium

Recovering vanadium oxides from petroleum coke by melting ... Pat. No. 4,243,639, Haas et al, METHOD FOR RECOVERING VANADIUM FROM PETROLEUM COKE, ... Get Price; Patent US4243639 Method for recovering … Try the new Google Patents, ... Method for recovering vanadium from petroleum coke ...

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A method for recovery of iron, titanium, and vanadium …

An innovative method for recovering valuable elements from vanadium-bearing titanomagnetite is proposed. This method involves two procedures: low-temperature roasting of vanadium-bearing ...

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METHOD FOR RECOVERING RARE EARTH, VANADIUM …

18-4-2013· A method for recovering rare earth, vanadium and nickel from waste vanadium-nickel catalysts, comprising steps of: acid leaching, by soaking waste vanadium-nickel catalysts into a sulfuric acid solution and obtaining a mixture containing alumina silica slag; sedimentation, by filtering out the alumina silica slag from the mixture to obtain a filtrate, and then adding a salt into the filtrate ...

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A Clean and Efficient Method for Recovery of Vanadium …

A cleaner method has been developed for the extraction of vanadium from vanadium slag. Compared to the traditional alkaline salts roasting followed by the water leaching process, in the nonsalt roasting process because no additives are added, the chromium spinel in the raw vanadium slag will not be converted to carcinogenic chromate salts and exhaust gas will not be produced.

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Study on Vanadium Recovery from Spent Catalyst Used in the ...

Conventional method for recovering vanadium from vanadium containing ores was studied by Hansen, [6]. This method included as an initial step the roasting of the vanadium ore with a sodium salt to form roasted products which contain sodium vanadate in solid form.

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A novel method to extract vanadium and chromium from ...

A new method using NaOH‐NaNO 3 binary melts to treat vanadium slag is proposed. Vanadium and chromium can be simultaneously extracted in the leaching processes. Under the optimum reaction conditions, the recovery of vanadium and chromium can reach 93.7% and 88.2% in 6 h, respectively.

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Chemical Treatment to Recover Molybdenum and Vanadium …

Vanadium and molybde- num were dissolved into sodium vanadate and sodium molybdate and pH was adjusted to 3.0 - 3.5 by the addi- tion of dilute hydrochloric acid. Vanadium and molyb- denum precipitated as vanadium pentoxide and molyb- denum trioxide. The nickel aluminate was obtained from the residue left the after removal of vanadium and mo-

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Method of recovering vanadium from solutions

This method is implemented in practice in Chusovoy metallurgical plant. There is also known a method of hydrolytic precipitation of vanadium by neutralizing solutions, obtained after acid leaching of toxins, prebaked with calcium supplements [1, 2]. The method is implemented on AAOT “vanadium - …

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METHOD FOR RECOVERING RARE EARTH, VANADIUM …

A method for recovering rare earth, vanadium and nickel from waste vanadium-nickel catalysts, comprising steps of: acid leaching, by soaking waste vanadium-nickel catalysts into a sulfuric acid solution and obtaining a mixture containing alumina silica slag; sedimentation, by filtering out the alumina silica slag from the mixture to obtain a filtrate, and then adding a salt into the filtrate ...

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A Clean and Efficient Method for Recovery of Vanadium …

A cleaner method has been developed for the extraction of vanadium from vanadium slag. Compared to the traditional alkaline salts roasting followed by the water leaching process, in the nonsalt roasting process because no additives are added, the chromium spinel in the raw vanadium slag will not be converted to carcinogenic chromate salts and exhaust gas will not be produced.

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The treatment of vanadium ores for the recovery of ...

The U.S. Bureau of Mines has developed a method of recovering as much as 90% of the vanadium from the by-product. It involves grinding the ferrophosphorus to a oo-mesh, mixing with sodium carbonate and salt in the weight ratios of i : i and 4 : i respectively, roasting at …

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METHOD OF PURIFYING AND RECOVERING VANADIUM …

bailes, r h. method of purifying and recovering vanadium from phosphate containing solutions.united states: n. p., 1956. web.

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A Clean and Efficient Method for Recovery of Vanadium from ...

A Clean and Efficient Method for Recovery of Vanadium from Vanadium Slag: Nonsalt Roasting and Ammonium Carbonate Leaching Processes Meng Lia,b,c, Shili Zheng b, Biao Liu , Shaona Wang , D.B ...

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Study on Vanadium Recovery from Spent Catalyst Used in the ...

Conventional method for recovering vanadium from vanadium containing ores was studied by Hansen, [6]. This method included as an initial step the roasting of the vanadium ore with a sodium salt to form roasted products which contain sodium vanadate in solid form.

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A novel method to extract vanadium from vanadium-bearing ...

A novel method to extract vanadium from vanadium-bearing steel slag using sodium carbonate solution Ming-lei Gao 1, 2, Xiang-xin Xue 1, Lan-jie Li 2, He Yang 1, Rui-guo Bai 2, Hai-xue Wang 2 ... there are two major ways to recover vanadium from the vanadium-bearing steel slag.

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How to Recover Radium, Uranium & Vanadium #6

The main object, therefore, has been to recover radium even at the sacrifice of some of the vanadium. The vanadium content of the ore used has varied from 3.46 to 5.43 per cent V2O5, and ore carrying less than 5 per cent presents no difficulties in treatment; however, if this proportion is largely exceeded, the rapidity of filtration is affected, resulting in some loss of radium.

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New Technology for Recovering Iron and Vanadium from ...

Maximum recovery and transformation: Combination of metallurgical and chemical processes suitable for recovering iron and vanadium for preparing a vanadium electrolyte (VE) directly from vanadiferous titanomagnetites. Successful trials conducted with a vanadiferous titanomagnetite concentrate from the Vanadiumcorp Lac Dore Vanadium Project.

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