Method for reducing and smelting titania slag by utilizing vanadium-titanium-iron ore concentrates in molten state
An acid-soluble titanium slag and vanadium-titanium-iron concentrate technology, applied in electric furnaces, furnace types, furnaces, etc., can solve the problems of backward technical and economic indicators, prone to slag and collapsed materials, and long reduction time, so as to improve the overall Economic benefits, stable electric furnace conditions, and effect of reducing the temperature of the smelting reduction process
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
example 1
[0032] The titanium concentrate composition (wt%) that adopts is as follows: TiO 2 : 45.79; SiO 2 : 3.45; total iron (TFe): 33.40; Al 2 o 3 : 1.04; MgO: 2.68; CaO: 1.77; FeO: 35.70; MnO: 0.891, Na 2 O: 0.056,K 2 O: 0.027. The vanadium-titanium iron ore concentrate composition (wt%) that adopts is as follows: TiO 2 : 12.73; SiO 2 : 3.16; TFe: 54.31; Al 2 o 3 : 3.50; MgO: 2.79; CaO: 0.918; FeO: 33.93; MnO: 0.419; 2 O: 0.034; K 2 O: <0.02. The vanadium-titanium iron concentrate and the titanium concentrate are mixed in a weight ratio of (2:8) to form a mixed ore. The mixed ore, asphalt and coke powder are mixed according to the weight ratio of 100:6.5:155 to form a mixture. According to the batch into the electric furnace for reduction. First, in the temperature range of about 750°C to 800°C, perform solid state direct reduction for about 60 minutes, and then raise the temperature to 1500°C to 1550°C for molten state reduction, and the time for molten state reduction...
example 2
[0034] The composition of the titanium concentrate and the vanadium-titanite concentrate in this example is the same as in Example 1. The vanadium-titanium iron concentrate and the titanium concentrate are mixed in a weight ratio of (3:7) to form a mixed ore. The mixed ore, asphalt and coke powder are mixed according to the weight ratio of 100:6.5:170 to form a mixture. According to the batch into the electric furnace for reduction. In the temperature range of about 1100°C to 1150°C, perform solid state direct reduction for about 60 minutes, then raise the temperature to 1300°C to 1350°C for melt state reduction, and the time for melt state reduction is about 90 minutes. Then carry out slag-iron fusion reduction separation, the melting temperature is about 1650 °C, add some anthracite to adjust the titanium slag grade and furnace conditions during melting, the additional amount of anthracite is 15% of the amount of carbonaceous reducing agent, obtained by melting and separati...
example 3
[0036] The composition of the titanium concentrate and the vanadium-titanite concentrate in this example is the same as in Example 1. The vanadium-titanium iron concentrate and the titanium concentrate are mixed in a weight ratio of (4:6) to form a mixed ore. The mixed ore, asphalt and coke powder are mixed according to the weight ratio of 100:6.5:180 to form a mixture. According to the batch into the electric furnace for reduction. In the temperature range of about 1100°C to 1150°C, perform solid state direct reduction for about 60 minutes, then raise the temperature to 1300°C to 1350°C for melt state reduction, and the time for melt state reduction is about 90 minutes. Then carry out slag-iron fusion reduction separation, the melting temperature is about 1650°C, add some anthracite to adjust the titanium slag grade and furnace conditions when melting, the additional amount of anthracite is 15% of the amount of carbonaceous reducing agent, obtained by melting and separation ...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com