ABOUT

Solutions & Cases

Our Case
  • US4071355A Recovery of vanadium from pig iron Google

    An improved method is described for processing pig iron containing vanadium to obtain a slag containing at least 8 percent vanadium and having a vanadium to iron ratio of at least 0.5 which is directly useful as a refining agent for producing ferrovanadium alloys, the improvement residing in simultaneously introducing a highly oxidizing gas and a protective fluid below the upper surface of a

  • Recovery of vanadium from pig iron Foote Mineral Company

    Jan 31, 1978· An improved method is described for processing pig iron containing vanadium to obtain a slag containing at least 8 percent vanadium and having a vanadium to iron ratio of at least 0.5 which is directly useful as a refining agent for producing ferrovanadium alloys, the improvement residing in simultaneously introducing a highly oxidizing gas and a protective fluid below the upper surface of a

  • CN1198190A patents.google

    The method for separating titanium and/or vanadium from pig iron envisages a sufficient quantity of iron oxides for slagging titanium being added to the pig iron in a first stage, the titanium being slagged and the slag separated, and then a sufficient quantitiy of iron oxides for slagging vanadium being added, and the vanadium-enriched slag formed being separated, whereupon the pig iron is

  • Method of redistribution of vanadium pig iron in the converter

    where Q(MgO) MgO in the charge, kg/t of pig iron; B basicity slag, equal to 2,8 4,0; 0,8 > V (CUG) > 0.2 to the content of vanadium in iron, %. 4. The method according to p. 1, characterized in that the part received in the Converter lime-vanadium slag used at the stage of obtaining vanadium iron in the amount of 30 to 60 kg/t of pig iron.

  • US3579328A Process for the production of ferro-vanadium

    a process is provided for the production of ferrovanadium from slag obtained from vanadium-containing pig iron or other vanadium-containing material, characterized in that the reduction of the slag is carried out in two steps: (1) in the first step a reducing agent is added in such amounts that the substantial portion of the iron oxide in the slag is substantially reduced to metallic iron

  • US6235253B1 Recovering vanadium oxides Google Patents

    US6235253B1 US09/324,333 US32433399A US6235253B1 US 6235253 B1 US6235253 B1 US 6235253B1 US 32433399 A US32433399 A US 32433399A US 6235253 B1 US6235253 B1 US 6235253B1 Authority US United States Prior art keywords vanadium dissolved bath molten metal coke Prior art date 1998-06-09 Legal status (The legal status is an assumption and is not a legal conclusion.

  • US4165234A Process for producing Google Patents

    US4165234A US05/886,923 US88692378A US4165234A US 4165234 A US4165234 A US 4165234A US 88692378 A US88692378 A US 88692378A US 4165234 A US4165234 A US 4165234A Authority US United States Prior art keywords vanadium slag iron converter weight Prior art date 1978-03-14 Legal status (The legal status is an assumption and is not a legal conclusion.

  • Vanadium sustainability in the context of innovative

    Jul 15, 2020· Vanadium has entered criticality in 2017, whereas it was not considered critical in the 2011 and 2014 assessment of the EU.According to the latest EU criticality assessment in 2017 the economic importance score (EI) is 3.7 (threshold 2.8) and the supply risk (SR) 1.6 (threshold 1.0) ().Fig. 1 shows a plot of the materials which have been accessed by the EU in 2011, 2014 and 2017.

  • METALLURGICAL AND CHEMICAL PROCESSES FOR

    vanadium pentoxide from pig iron is estimated as being about 3.0 MWh per tonne of vanadium pentoxide, including the crushing, grinding, and one or more of the following: roasting-leaching, roasting in a rotary-kiln, electric smelting, shaking-ladle, and basic oxygen furnace burning

  • Development of the process for production of vanadium rich

    to produce pig iron containing 0.75-0.8% vana-dium and .5-.8% silicon. The vanadium recovery in pig iron was 80 to 85%. The blowing experiments were carried out with oxygen in ladle by maintaining propper temperature control. Maximum recoveries of vanadium were obtained when the temperature of the blow was kept below 1350°C. The slag

  • Vanadium sustainability in the context of innovative

    Jul 15, 2020· Vanadium has entered criticality in 2017, whereas it was not considered critical in the 2011 and 2014 assessment of the EU.According to the latest EU criticality assessment in 2017 the economic importance score (EI) is 3.7 (threshold 2.8) and the supply risk (SR) 1.6 (threshold 1.0) ().Fig. 1 shows a plot of the materials which have been accessed by the EU in 2011, 2014 and 2017.

  • The smelting of vanadium-containing steel in electric arc

    As a vanadium-containing materials in the melt is injected magnetic shlakometallicheskih fraction Converter slag vanadium in amounts of from 20 to 250 kg per ton of melt. In addition, Shitova procurement includes pig iron and ferrous oxide material at the following content, wt.%: pig iron 65-90; iron oxide material 10-35.

  • Vanadium Data Sheet Mineral Commodity Summaries 2020

    remainder of 2019. Byproduct vanadium production in the United States resumed in early 2019 at the White Mesa mill in Utah. The company expected to continue production, subject to successful recovery and suitable prices. An iron and vanadium mine in South Africa remained closed leaving South Africa with only two major producers of vanadium.

  • PROCESS FOR THE SEPARATION OF VANADIUM Free Patents

    1. 1-8. (canceled) 9. A process for separating vanadium in the form of vanadium oxide, iron-vanadium-oxide, or iron-vanadium from solutions containing both dissolved iron and dissolved vanadium, the method comprising oxidizing an aqueous solution containing dissolved iron and vanadium in a molar iron-to-vanadium ratio of above 1:1, and optionally also other elements at a reaction temperature

  • Recovering vanadium from petroleum Free Patents Online

    Jun 05, 2001· While not related directly to processing coke, U.S. Pat. No. 4,071,355, Staggers, RECOVERY OF VANADIUM FROM PIG IRON, taught removal of vanadium from pig iron to produce a vanadium rich slag by oxidizing molten pig iron at 2600-2900 F. The teachings of these patents, which are incorporated by reference, could be summarized as follows.

  • Selective oxidation of Vanadium prior to Iron and Phosphorus

    tent, vanadium is to a large extent reduced into pig iron in the Blast Furnace; therefore a vanadium rich pig iron is obtained (~0.3 % V), figure 1. In the following decarburization step with high oxygen potential, vanadium, phosphorus and manganese among others re-ports to the slag phase, as a result high V-contents in the converter slag.

  • Process for producing ferrovanadium Free Patents Online

    Aug 21, 1979· United States Patent 4165234 . Abstract: The process according to the present invention relates to the production of ferrovanadium alloys. The process comprises melting a charge containing iron and vanadium with a subsequent reduction of iron and vanadium to give a metal melt. Recovery of vanadium from pig iron: 1978-01-31: Staggers: 75/60

  • Vanadium distribution in melts intermediate to ferroalloy

    The effect of basicity adjustments on the slag/metal distribution of iron, vanadium, and manganese was investigated using carbon and FeSi as a reductant. A simulation of the final stage of slag reduction was also carried out to determine the efficiency of vanadium recovery during metallothermic smelting using aluminum and FeSi.

  • Environmental and Energy Consumption Footprint of

    They did produce pig iron containing 1.25 mass percent vanadium first by smelting/slagging that was then converted into steel by injecting oxygen into the molten metal yielding a secondary vanadium-rich slag containing 12-24 mass percent V 2 O 5 from which vanadium pentoxide was finally extracted by soda ash roasting and hot water leaching.

  • Environmental and Energy Consumption Footprint of

    Nov 23, 2017· recovery of mineral commodities, with examples applied to sub-Saharan Africa. US Geological Survey (USGS), Open-file Report 2011-1253, Reston, VA]: the specific electricity consumption for the production of vanadium pentoxide from pig iron is assessed as 3.000 MWh/tonne. This specific

  • Iron And Titanium From Vanadium Processing

    Iron And Titanium From Vanadium Processing. Vanadium is the 22nd most abundant element in the earths crust, occurring more than 65 minerals 1.Vanadium resources globally are estimated at 63 million metric tons with the majority located in china, russia, south africa and australia 2.North america, canada, brazil, finland and madagascar also have vanadium deposits.

  • iron production process flow diagram

    A new process for the recovery of iron, vanadium, and . A new process for the recovery of iron, vanadium, and titanium Coal is used as reductant. The chemical analysis of the Figure 1—Flow chart of the new process Figure 2—XRD pattern of VTM concentrate Figure 3—Schematic diagram of experiment procedure and equipment. Get Price []

  • (PDF) Vanadium sustainability in the context of innovative

    The United States and Canada have also addressed the. their outcomes are summarized along with the most recent patents for vanadium recovery. and vanadium-bearing pig iron slag) (Polyak,

  • Vanadium Resources in Titaniferous Magnetite Deposits

    Vanadium can be recovered from titaniferous magnetite ore by either of two processes: (1) precipitating a vanadium salt from a leach of ore roasted with salt, or (2) precipitation from a leach of salt-roasted vanadium-rich slag obtained by smelting the ore to make a vanadium-bearing pig iron