Ratio of Magnesium in Prepared High Titanium Ferroalloy with Titanium Concentrate and Titanium Slag by Thermite Reduction

2012 ◽  
Vol 581-582 ◽  
pp. 1092-1095 ◽  
Author(s):  
Man Tang Ding
Keyword(s):  
Slag System ◽  
Titanium Slag ◽  
System Composition ◽  
Aluminum Consumption

Titanium concentrate and titanium slag were used to prepare high titanium ferroalloy to reduce cost. In the process, the 6-9% of aluminum consumption was replaced by magnesium. The reasonable slag system composition was used. The results indicate that the ferrotitanium of 75% [Ti] and [Al]<4% was prepared.

SHS in the Si–CO2 System: Composition/Structure of Combustion Products

2020 ◽  
Vol 29 (3) ◽  
pp. 138-142
Author(s):  
T. V. Barinova ◽  
V. Yu. Barinov ◽  
V. N. Semenova ◽  
I. D. Kovalev
Keyword(s):  
Combustion Products ◽  
System Composition ◽  
Composition Structure

scholarly journals Design and Construction of a Laboratory-Scale Direct-Current Electric Arc Furnace for Metallurgical and High-Titanium Slag Smelting Studies

Metals ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 732
Author(s):  
Botao Xue ◽  
Lingzhi Yang ◽  
Yufeng Guo ◽  
Feng Chen ◽  
Shuai Wang ◽  
...  
Keyword(s):  
Direct Current ◽  
Electric Arc Furnace ◽  
Electric Arc ◽  
Melting Time ◽  
Furnace Lining ◽  
Arc Furnace ◽  
Titanium Slag ◽  
Design Requirements ◽  
Metallized Pellets ◽  
The Heat Balance

A novel direct-current electric arc furnace (DC-EAF) was designed and constructed in this study for experimentally investigating high-titanium slag smelting, with an emphasis on addressing the issues of incomplete separation of metal and slag as well as poor insulation effects. The mechanical components (crucible, electrode, furnace lining, etc.) were designed and developed, and an embedded crucible design was adopted to promote metal-slag separation. The lining and bottom thicknesses of the furnace were determined via calculation using the heat balance equations, which improved the thermal insulation. To monitor the DC-EAF electrical parameters, suitable software was developed. For evaluating the performance of the furnace, a series of tests were run to determine the optimal coke addition under the conditions of constant temperature (1607 °C) and melting time (90 min). The results demonstrated that for 12 kg of titanium-containing metallized pellets, 4% coke was the most effective for enrichment of TiO2 in the high-titanium slag, with the TiO2 content reaching 93.34%. Moreover, the DC-EAF met the design requirements pertaining to lining thickness and facilitated metal-slag separation, showing satisfactory performance during experiments.

scholarly journals Migration and Enrichment Behaviors of Ca and Mg Elements during Cooling and Crystallization of Boron-Bearing Titanium Slag Melt

Crystals ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 888
Author(s):  
Helin Fan ◽  
Ruixiang Wang ◽  
Zhifeng Xu ◽  
Huamei Duan ◽  
Dengfu Chen
Keyword(s):  
Energy Consumption ◽  
Low Energy ◽  
Crystallization Condition ◽  
Titanium Slag ◽  
Synthetic Rutile ◽  
Low Energy Consumption ◽  
Slag Melt ◽  
Element Migration

Synthetic rutile was prepared from titanium slag melt with low energy consumption and a small amount of additive (B2O3) in our previous work. The modification mechanism of titanium slag was not clear enough. The migration and enrichment behaviors of Ca and Mg elements during cooling and crystallization of boron-bearing titanium slag melt were characterized by XRF, FESEM, EMPA, and XPS. Results show that when additive (B2O3) is added, Ti elements are migrated and enriched in the area to generate rutile, while Ca, Mg, and B elements are migrated and enriched in another area to generate borate. With the additive (B2O3) amount increased, Ca and Mg element migration is complete and more thorough. Additive (B2O3) promotes rutile formation and inhibits the formation of anosovite during cooling and crystallization of titanium slag melt. With the additive (B2O3) amount increasing from 0% to 6%, the proportion of Ti3+ in the modified titanium slag reduces from 9.15% to 0%, and the proportion of Ti4+ increases from 90.85% to 100% under the same cooling and crystallization condition. The result will lay the foundation for the efficient preparation of synthetic rutile by adding B2O3 to the titanium slag melt.

scholarly journals System Composition and Optimization of Small Soccer Robot

2021 ◽  
Vol 1952 (4) ◽  
pp. 042100
Author(s):  
Jinhua Du ◽  
Shuang Li ◽  
Hang Wang ◽  
Zhaoming Sun ◽  
Gang Du
Keyword(s):  
Soccer Robot ◽  
System Composition

Practice of Titanium-Slag Smelting by Large DC Arc Furnace

2020 ◽  
Vol 996 ◽  
pp. 179-184
Author(s):  
Shi Hong Huang ◽  
Xian Hao Long ◽  
Yan Cui ◽  
Ting Lei
Keyword(s):  
Yunnan Province ◽  
Mineral Resources ◽  
Arc Furnace ◽  
Titanium Slag ◽  
Electrode Consumption ◽  
Gas Utilization ◽  
Dc Arc Furnace ◽  
Advanced Production ◽  
Dc Arc ◽  
A Company

This paper introduces the characteristics of titanium mineral resources in Yunnan Province and the production situation of titanium-slag smelting, The article puts forward the necessity of constructing a project of producing 80,000t/a of high-titanium. The process is advanced production technology of a company in South Africa, the process has a large capacity, gas utilization, energy, and low electrode consumption, the article carried out economic evaluation of the project.

Study of the Removal of Boron from Metallurgical Grade Silicon by Oxidation Slagging Method

2010 ◽  
Vol 156-157 ◽  
pp. 882-885 ◽  
Author(s):  
Yu Yan Hu ◽  
Dong Liang Lu ◽  
Tao Lin ◽  
Yu Liu ◽  
Bo Wang ◽  
...  
Keyword(s):  
Removal Efficiency ◽  
Orthogonal Experiment ◽  
Slag System ◽  
Refining Process ◽  
Impact Factors ◽  
Metallurgical Grade Silicon ◽  
Optimum Parameters ◽  
Grade Silicon ◽  
Refining Time ◽  
The Impact

Refining of solar grade silicon by metallurgical method is the research hotspot of polycrystalline field. Slagging method is benefit to the removal of the impurities especially to boron exsisted in the raw silicon. In this study, the influence of the density, the viscosity and liquidus temperature of the slag components on the refining process were discussed, and then the slag system SiO2-Na2CO3 was choosed as the slagging agents. And then the impact factors on the removal efficiency of boron such as the composition of SiO2 and Na2CO3, the ratio of slag to silicon and the refining time were investigated by the orthogonal experiment. The results showed that the optimum parameters of the oxidation refining for removing boron were as follows: the main composition of the oxidant is “SiO2 : Na2CO3 = 60% : 40%”; the slag/silicon ratio is 0.5; time for refining is 60min at 1550 . The results indicated that the removal efficiency of boron was 88.28%, and the content of boron in MG-Si can be reduced to 7ppmw under the best refining process¬.

Design and Research of Carbon Dioxide Automatic Measuring Instrument

2013 ◽  
Vol 706-708 ◽  
pp. 704-707
Author(s):  
Qiang Liu ◽  
Tao Wu
Keyword(s):  
Carbon Dioxide ◽  
Dependent Manner ◽  
Measuring Instrument ◽  
Automatic Measuring ◽  
Important Material ◽  
System Composition ◽  
Working Principle ◽  
Automatic Measuring Instrument ◽  
Dose Dependent ◽  
Photosynthesis And Respiration

Carbon dioxide is the very important material of plants when they are making food by means of photosynthesis. The concentration of carbon dioxide restricts photosynthesis and respiration in a dose-dependent manner. Therefore, keeping stability concentration of carbon dioxide is quite important for plant to grow rapidly. This paper mainly introduced the system composition and working principle of carbon dioxide automatic measuring instrument, the system taking Freescale MCU as control core. The instrument can collect signal, display data and reset by connecting with the PC. The experiment result states clearly this carbon dioxide automatic measuring instrument has practical value and application significance.

scholarly journals Determination of magnesium and calcium in high purity titanium slag

1959 ◽  
Vol 8 (4) ◽  
pp. 225-231
Author(s):  
Katsuhiko NAKA ◽  
Hiromoto IWAMATSU
Keyword(s):  
High Purity ◽  
Titanium Slag ◽  
Purity Titanium
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