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A method for the recovery of valuable materials from titanium grinding swarf is provided comprising the steps of sieving the accumulated titanium grinding swarf to remove unwanted coarse trash and grinding wheel fragments, pelletizing, and smelting in an electric arc furnace to produce ferrotitanium and/or high titanium slag.
titanium concentration in hot metal by adding a significant amount of titanium raw material and controlling the furnace heat to a little higher level before shutdown with intensifying hearth cooling. 1. INTRODUCTION The main wear mechanisms for the lining of the hearth are abrasion caused by flowing hot metal/slag and corro
Large quantities of CO 2 and blast furnace slag are discharged in the iron and steel industry. Mineral carbonation of blast furnace slag can offer substantial CO 2 emission reduction and comprehensive utilization of the solid waste. This paper describes a novel route for indirect mineral carbonation of titaniumbearing blast furnace (TBBF) slag, in which the TBBF slag is roasted with ...
* The majority of components in Granulated Blast Furnace Slag are various glassy Metallic Silicates (Iron, Calcium, Magnesium, Aluminum, and Titanium Silicates), including: Dicalcium Silicate (Ca2SiO4), Merwinite (Ca3MgSi2O8), and Gehlenite (Ca2Al2SiO7) .
The invention relates to ferrous metallurgy and can be used in Ferroalloy industry, specifically in the production of low carbon ferrochrome. Various methods for the production of lowcarbon (refined) of ferrochrome in electric furnaces or spacegreat, allowing to obtain a low content of carbon in it, but they are inefficient and typically require the use of high quality materials.
There were two controlling factors, which should be kept balance of raw input and energy during titanium slag smelting in closed high power direct current electric arc furnace, DC furnace for short. The first factor contains compositions and ratio of input raw materials. Compositions of the raw could influence the progress and technical indicators of DC furnace smelting, and on the meanwhile ...
offers 239 titanium slag products. About 9% of these are other titanium, 7% are titanium scrap, and 2% are industrial furnace. A wide variety of titanium slag options are available to you, such as is powder, not powder.
Jan 07, 2013· Titanium is one of the most valuable elements found in blast furnace slag, with a concentration of approximate %. Because of the low level of titanium in slag, the best method of extraction is hydrometallurgy. In this study, parameters such as slag particle size, temperature, concentration of acid, solidtoliquid ratio, and ultrasonic wave time were used to determine the recovery of titanium.
The furnace was lined with carbon brick and a rammed carbon hearth rather than with a normal refractory material, such as magnesite, to prevent excessive contamination of the molten slag by refractory oxides. Carbon was considered a less objectionable impurity than refractory oxides in titanium slag. Procedure and Results
electrode moving can not exceed 0,02 mis we failed in tapping the titanium slag produced in this furnace. The titanium slag managed to solidify before the rotation of crucible started. The approach to raw materials smelting by liquid slag results in stabilizing electrical energetic conditions for the process.
Prereduction and DC openarc smelting of carbonbased ilmenite pellets K. Bisaka, I. Thobadi, and X. Goso Pyrometallurgy Division, Mintek The smelting of ilmenite to produce valuable titania slag and pig iron is an energyintensive process. At process temperatures of about 1700°C, roughly 1 MWh of electricity per ton of ilmenite feed is consumed.
As a result, the blast furnace titanium slag in CaTiO3 primary phase field contains less than 25% (mass fraction) TiO2, where the titanium resource cannot be recovered economically due to its low TiO2 content. Therefore, many other methods [5âˆ''12] are developed to achieve the comprehensive utilization of vanadium titanomagnetite ore.
For a furnace with basic refractories, which includes most carbon steelproducing furnaces, the usual slag formers are calcium oxide (CaO, in the form of burnt lime) and magnesium oxide (MgO, in the form of dolomite and magnesite). These slag formers are either charged with the scrap, or blown into the furnace during meltdown.
Dec 27, 2018· The base blast furnace slag composition in SiO2Al2O3CaOMgO system is fixed at CaO/SiO2=, 16 wt% Al2O3 and 8 wt% MgO. ... For studying the carbon thermal reduction rules of titanium in hot ...
Recent experiment in our laboratory demonstrates that an increase in slag ing with carbon injection rate is limited by slag volume. The current work has identified a relationship between height, carbon injection rate and slag volumes, which predicts the critical injection rate above which ing become inefficient. The
carbon for titanium slag furnace. high titanium slag manufacturer in canada 4 x 6300 KVA smelting furnaces to produce 36,000 tons High Titanium Slag with +91% All in . Core Type 3 Phase Ladle Furnace Transformer For Factory .
high titanium slag plant Grinding Mill China. carbon for titanium slag furnace high titanium slag plant relatively high current densities are used carbon anodes are not consumed . get more info. carbon for titanium slag furnace apollociclinic. extraction of titanium chemguide. Uses of titanium and its extraction from its ore, there is a
Nov 24, 2008· The arc is about 3000°Celcius and scrap steel is melted in three charges to get around 40 tonnes of steel to be further processed in the ladle furnace. The rods are from carbon and the arc ...
These tests demonstrated that titanium slag with a high lime content can be converted to TiC with results similar to those achieved with perovskite. Best conversions of titanium slag to carbide (95 percent) were achieved when 10pound slag charges were reacted with pounds of carbon and pounds of lime at 4,350° F for 3 hours.
The applying of burden materials containing titanium compounds in the blast furnace process and the processes of forming titanium carbides and nitrides has a directly impact on the physical and chemical properties of slag and pig iron. Thereby affecting the course of the process, its efficiency and economy. It is known that the dynamic viscosity coefficient of slag – with an increased ...
By additional energetic utilization of the off gases and the surplus char of the rotary kiln as well as the off gas of the electric furnace for power production the total energy consumption of the electric furnace per ton titanium slag can be further reduced to about 39% of the value in option A.
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A method for the recovery of valuable materials from titanium grinding swarf is provided comprising the steps of sieving the accumulated titanium grinding swarf to remove unwanted coarse trash and grinding wheel fragments, pelletizing, and smelting in an electric arc furnace to produce ferrotitanium and/or high titanium slag. 1 fig.
duction of the titaniarich slag is further acidleached under a highpressure and moderatetemperature hydrometallurgical process to yield an upgraded titania slag with mass percent TiO 2, which is used in the chloride process. After describing in detail the beneficiation, chemistry, and mineralogy of the hemoilmenite ore, this
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