The choice of aggregate industry
We provide all kinds of crushing machines including stationary crusher and mobile crusher
- 0086-21-3390160
- [email protected]
We provide all kinds of crushing machines including stationary crusher and mobile crusher
Jan 15, 2020 Quenching after roasting (22.5–30% Na 2 CO 3, 1025 °C) resulted in increased chromium and vanadium extraction when leaching a Canadian titaniferous magnetite ore (Lucas and Ritcey, 1980). The optimum temperature for chromium extraction is higher than that for vanadium extraction ( Gabra and Malinsky, 1981 ), as might be expected based on the ...
Apr 30, 2017 Vanadium extraction of vanadium-bearing titanomagnetite was investigated by selective chlorination. Thermodynamics analyses on the interactive reactions among related species in the system were made before the experiments. Some fundamental experiments for extracting vanadium by FeClx as chlorinating agent were conducted over the temperature range of 900-1300 K under air or
Jan 01, 1995 Extraction from titanomagnetite deposits 165 1oo 9o 8o ne ao / m I I I 0 10 20 80 40 50 60 Soda Ash AcklUor~ wt. % Fig.4 Effect of soda ash addition on the vanadium recovery during two hours of slag roasting and three hours of leaching Fig.5 IOO 4o > 2o o 7oo I * I , 8OO 900 I000 Roasting Temperature, *C 110o Effect of roasting temperature on ...
Regarding the extraction of vanadium from vanadium-bearing resources (such as vanadium-bearing titanomagnetite, vanadium-rich slag, stone coal) many efforts have been made by researchers [11–27]. A calcium roasting method followed by acid or alkaline leaching was an alternative process to extract
Aug 30, 2015 An extraction process to recover vanadium from low-grade vanadium-bearing titanomagnetite was developed. In this study, a mixed solvent system of di(2-ethylhexyl) phosphate (D2EHPA) and tri-n-butyl phosphate (TBP) diluted with kerosene was used for the selective extraction of vanadium from a hydrochloric acid leaching solution that contained low vanadium concentration with
The ore which contains 57.5% Fe, 0.66% V and 16.6% TiO 2 was subjected to selective reduction smelting so that most of the iron reported to the metal phase and the vanadium and titanium to the slag phase. The iron had a purity of 99%.
A process has been developed at the laboratory scale for the recovery of titanium, vanadium and iron from the vanadium bearing titanomagnetite deposit at Pipestone Lake, Manitoba, by combined pyro ...
PDF Titanomagnetites are one of the most important resources for recovery of vanadium. Qara-aghaj hard rock titanium ore locating 36 Km far from... Find, read and cite all the research you ...
on the vanadium extraction from titanomagnetite is shown in Figure 1. The vanadium extraction appears to be insensitive to variations in NaCl concentration in the studied range, as shown by the almost constant vanadium extraction of 64% and 63% at NaCl concentrations of
Deposits of titaniferous magnetite, uraniferous sandstone, bauxite, phosphate rock, crude oils, oil shale and tar sands host vanadium. Apart from titanomagnetite and ilmenite ore deposits containing vanadium, slags from the ferrous industry are a major source of supply.
Apr 30, 2017 Vanadium extraction of vanadium-bearing titanomagnetite was investigated by selective chlorination. Thermodynamics analyses on the interactive reactions among related species in the system were made before the experiments. Some fundamental experiments for extracting vanadium by FeClx as chlorinating agent were conducted over the temperature
Regarding the extraction of vanadium from vanadium-bearing resources (such as vanadium-bearing titanomagnetite, vanadium-rich slag, stone coal) many efforts have been made by researchers [11–27]. A calcium roasting method followed by acid or alkaline leaching was an alternative process to extract
Successful test work commenced by Dr. Francois Cardarelli at Electrochem’s facilities in Boucherville, Quebec yielded high recoveries of both iron and vanadium values from a vanadiferous titanomagnetite concentrate that was extracted, prepared and beneficiated by IOS Services Geoscientifiques Inc., directly from the Company’s 100% owned Lac ...
Vanadium extraction from vanadium-bearing titanomagnetite by selective chlorination using chloride wastes (FeCl x ) February 2017 Journal of Central South University 24(2):311-317
Vanadium (V) titanomagnetite ores globally constitute the main source for production of V-containing commodities, most importantly vanadium pentoxide (V 2O 5) and fer-rovanadium (FeV) [1, 2]. Several deposits of V titano-magnetite ore are available in the world, and a few of them are located in Scandinavia. Since these iron ores contain
A process has been developed at the laboratory scale for the recovery of titanium, vanadium and iron from the vanadium bearing titanomagnetite deposit at Pipestone Lake, Manitoba, by combined pyro ...
Vanadium-bearing titanomagnetite is a very important mineral resource of vanadium, titanium and iron. Currently, the major process for smelting vanadium-bearing titanomagnetite involves firstly extracting iron and then extracting vanadium of slag by sodium salt roasting and water leaching technologies [1,2,3,4,5,6,7,8], which causes serious environmental pollution
Sep 02, 2020 Vanadium is mainly extracted from vanadiferous titanomagnetite (VTM) deposits with a V content ranging between 100 and 5000 mg/kg (0.2-1 wt% V 2 O 5 ), but the South African ore grades go up to 1 ...
Reduction and smelting of the vanadium titanomagnetite metallized pellets have been experimentally investigated in this study. By using the high-temperature smelting, rapid quenching, and electron ...
Dec 14, 2010 The ore microscope observation shows that the matrix mineral components in the bauxite ores are cryptocrystalline diaspore, hematite, ferrohydrite, kaolinite, anatase, vanadium titanomagnetite and chamosite (Figs. Mineralogical and geochemical characteristics of the Guigang Salento-type bauxite deposits, Western Guangxi, China.
The extraction and recovery process of vanadium as a by-product from the tailings of a uranium processing plant poses many problems. In this study vanadium is recovered from impounded resin-in-pulp tailings and from the current tailings of a uranium plant which did not include a circuit for vanadium recovery in its initial design. Since the vanadium content is quite low, capital
An extraction process to recover vanadium from low-grade vanadium-bearing titanomagnetite was developed. In this study, a mixed solvent system of di(2-ethylhexyl) phosphate (D2EHPA) and tri-n-butyl phosphate (TBP) diluted with kerosene was used for the selective extraction of vanadium from a hydrochloric acid leaching solution that contained low vanadium
After comparing the results of vanadium extraction by roasting the mixture of calcium-bearing regents with vanadium titanomagnetite concentrate and leaching by deionized water and roasting the mixture of sodium-bearing regents with iron concentrate and leaching by acid,the extraction method of vanadium by roasting the mixture of calcium-bearing reagents with iron
The invention discloses a method for extracting titanium from vanadium-titanium magnetite. The method comprises the following steps: adding sodium or potassium salt additive in the reduction smelting of an iron ore concentrate electric stove to obtain liquid iron and titanium-containing slag, wherein vanadium and iron are reduced to enter liquid iron, under a smelting high temperature ...
Regarding the extraction of vanadium from vanadium-bearing resources (such as vanadium-bearing titanomagnetite, vanadium-rich slag, stone coal) many efforts have been made by researchers [11–27]. A calcium roasting method followed by acid or alkaline leaching was an alternative process to extract
vanadium-bearing titanomagnetite 2 Concept of vanadium extraction by selective chlorination The proposed novel process as shown in Fig. 1 involves three parts: 1) selectively chloridizing vanadium-bearing ore and extracting vanadium by the form of vanadium trichloride oxide gas (Melting point: 196 K, boiling point: 400 K) from the ore through
A process has been developed at the laboratory scale for the recovery of titanium, vanadium and iron from the vanadium bearing titanomagnetite deposit at Pipestone Lake, Manitoba, by combined pyro ...
PDF Titanomagnetites are one of the most important resources for recovery of vanadium. Qara-aghaj hard rock titanium ore locating 36 Km far from... Find, read and cite all the research you ...
In this paper, potassium salt roasting additives were applied to extract vanadium from vanadium–titanium magnetite concentrate. Meanwhile, the mechanisms of potassium salt roasting and acid leaching kinetics were investigated. The results indicate that potassium salt roasting additives are more efficient than sodium and calcium salt and that K2SO4 works best.
Nov 16, 2017 An innovative and sustainable way for production of vanadium is to co-process vanadium titanomagnetite ores with vanadium-bearing slag from steel industry, via reduction, producing a hot metal containing about 2 mass% vanadium, 0.1 mass% phosphorus, and 0.4 mass% silicon. A vanadium-extraction method was developed for these hot metals using a semi-industrial
Regarding the extraction of vanadium from vanadium-bearing resources (such as vanadium-bearing titanomagnetite, vanadium-rich slag, stone coal) many efforts have been made by researchers [11][12 ...
The vanadium titanomagnetite ore was got from Panzhihua, Sichuan, China. The chemical composition is shown in Table 2. The coal used was got from one steel plant, and the industrial analysis of the coal is shown in Table 3. The anal-ysis grade of CaO was used as the flux and the purification
A method for processing vanadium titanomagnetite relates to a method for preparing iron powder and ilmenite concentrate from vanadium titanomagnetite through fluidized bed roasting and magnetic separation. The method is characterized by comprising the following steps in sequence: (1) crushing and grinding the raw ore of vanadium Get Price
After comparing the results of vanadium extraction by roasting the mixture of calcium-bearing regents with vanadium titanomagnetite concentrate and leaching by deionized water and roasting the mixture of sodium-bearing regents with iron concentrate and leaching by acid,the extraction method of vanadium by roasting the mixture of calcium-bearing reagents with iron concentrate and leaching by ...
Furthermore, some preliminary experimental are conducted and the results show that it is possible to extract vanadium from vanadium-bearing titanomagnetite by selective chlorination and extraction ratio can reach up to 30% under 1100K after 2 hours calcination.
In the article the negative impact of titano-magnetite ore enrichment waste on the environment and the possibility of its use as vanadium-containing raw materials are overviewed. The chemical and mineralogical composition features of various samples of the Kusinsky deposit titanomagnetite ore tails are presented. Different combinations of their roasting processes (with and without salt ...
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 sodium vanadate,
Aug 29, 2013 extraction of vanadium from canadian titanomagnetite ore Crushing Production Line; Beneficiation Plant; In titanomagnetite ore the greatest affinity to electron is possessed by cations of ferrum which are reduced.
Copyright © 2018 - All Rights Reserved