titanium iron dissolution

  • Titanium and iron dissolutions from ilmenite by acid ...

    2012-5-4 · This led to the maximum titanium concentration of 63% that was comparatively very high compared with low iron dissolution of only 11%. Spores of A. niger and P. citrinum solutions were individually transferred at the culture ratio of 1 : 0, 0 : 1 and 1 : 1 in a shake flask containing Sabouraud dextrose medium.

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  • Dissolution Kinetics of Titanium in Carbon-Saturated Iron ...

    2019-2-13 · The content of titanium is important for prolonging blast furnace life. In this study, the dissolution kinetics of titanium in carbon-saturated iron was studied. The carbon-saturated pig iron was heated to 1200, 1250 and 1300 °C, respectively, and then an appropriate amount of titanium-iron alloy powder was added.

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  • Optimization of Ilmenite Dissolution by

    This work studied the effect of different parameters on the dissolution of iron and titanium from ilmenite in the oxalic acid and hydrochloric acid solution. The

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  • Kinetics of the dissolution of ilmenite in sulfuric acid ...

    2010-6-1 · The rates of titanium and iron dissolution also appear to be the same at all potentials.3.3.2. Effect of pulp density and particle sizeSeveral experiments were performed under standard reducing conditions in which the amount of ilmenite was varied to give S/L ratios (gram mineral/mL solution) of 1/200, 1/100, and 1/20. ...

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  • (PDF) Characterization and Leaching Kinetics of Ilmenite ...

    The kinetics of the dissolution of titanium and iron from an ilmenite sample has been studied in moderately strong sulfuric acid solutions in the absence and

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  • Titanium Dissolution from Indonesian Ilmenite

    2013-9-2 · The dissolution experiment was caried out by using sulfuric acid solutions with concentration 50 % and 75 %, and the dissolution temperatures were 50 o C and 75 o C. The results of titanium and iron dissolution from decomposed Ilmenite at temperature 50 o C are presented at figure 3a and figure 3b,

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  • 钛矿中电化学除铁方法的比较,Journal of Sustainable ...

    2017-5-25 · 通过克罗尔(Kroll)工艺生产钛金属需要使用高级矿石原料作为氯化原料,例如天然或合成金红石。制备钛的电化学方法通常需要更高的纯度。本文描述了从伪金红石型矿物砂中除铁的不同方法,最终目的是通过MER电化学法生产商业纯钛粉。一种方法涉及溶解Fe \(_ 2 \) O \(_ 3 \)在碱金属氯化物熔 ...

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  • Kinetics of ilmenite dissolution in hydrochloric acid ...

    2002-7-1 · After 400 min, 100% of the iron and titanium was extracted in the 6 M HCl solution, while about 10% of the iron and titanium were dissolved in the 4 M HCl solution in the same time period. 1.3. TemperatureThe rate of ilmenite dissolution increases rapidly as the leach temperature rises.

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  • A method for recovery of iron, titanium, and vanadium

    2018-2-3 · After a water leaching process, 85.61% of the vanadium from the roasting slag was leached, confirming the sodium oxidation of most of the vanadium oxides to water-soluble sodium vanadate during the roasting process. The total recoveries of iron, vanadium, and titanium were 93.67%, 72.68%, and 99.72%, respectively.

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  • Corrosion of Titanium: Part 1: Aggressive Environments

    2018-7-11 · The content of iron impurities in titanium is reported to have a great effect on crevice corrosion. At low Fe concentration, less than 0.1%, iron is present as intergranular β-phase, and crevice penetration is rapid and limited by the ohmic drop due to the corrosion products’ accumulation within the crevice ( 65 ).

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  • MICROWAVE ASSISTED DISSOLUTION OF SRI LANKAN

    2017-6-1 · The dissolution of both titanium and iron from ilmenite was controlled by a chemical reaction on the surface of ilmenite particles. Maximum extractions of 74.2 (±1.1) % of titanium and 71.3 (±0.8) % of iron from the ilmenite ore were achieved using a microwave leaching system of 600 W, 2.45 GHz. Experimental results further showed that the ...

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  • Titanium Dissolution from Indonesian Ilmenite

    2013-9-2 · The dissolution experiment was caried out by using sulfuric acid solutions with concentration 50 % and 75 %, and the dissolution temperatures were 50 o C and 75 o C. The results of titanium and iron dissolution from decomposed Ilmenite at temperature 50 o C are presented at figure 3a and figure 3b,

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  • The Dissolution of titanium in liquid steel | SpringerLink

    The dissolution kinetics of solid cylinders of titanium in liquid steel has been studied. Two separate dissolution periods were identified: asteel shell period anda free dissolution period. During thesteel shell period a customary shell of frozen steel encased the cylinder following its initial immersion. Premature internal dissolution then began as a result of liquid eutectic

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  • 钛矿中电化学除铁方法的比较,Journal of Sustainable ...

    2017-5-25 · 通过克罗尔(Kroll)工艺生产钛金属需要使用高级矿石原料作为氯化原料,例如天然或合成金红石。制备钛的电化学方法通常需要更高的纯度。本文描述了从伪金红石型矿物砂中除铁的不同方法,最终目的是通过MER电化学法生产商业纯钛粉。一种方法涉及溶解Fe \(_ 2 \) O \(_ 3 \)在碱金属氯化物熔 ...

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  • "A study of the dissolution of titanium in acids with ...

    2014-9-26 · "Titanium is practically a new metal. Although it was discovered by W. Gregor in 1791, the pure metal was not prepared until 1910 by M. A. Hunter, and it is only very recently that tremendous interest has been focused on this new metal, as evidenced by the activities of numerous leading laboratories and pilot plants. The reasons that Ti is gaining increasing

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  • Titanium dissolution - Big Chemical Encyclopedia

    Titanium dissolution The discussion in Section 4.2.1 suggested that titanium dissolution may be driven by the reduction of H, the reduction of Oj, or the reduction of oxidizing agents.When titanium is polished in the presence of copper ions, copper ion reduction leads to the oxidation of the titanium.A galvanic couple is formed between the Cu/Cu and the Ti/Ti systems such that

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  • A multiparametric study on the dissolution of synthetic ...

    2021-6-2 · Dissolution experiments. Samples of synthetic brannerite were dissolved to conduct a multiparametric study. 25 or 50 mg of powdered brannerite were put

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  • Corrosion of Titanium: Part 1: Aggressive Environments

    2018-7-11 · The content of iron impurities in titanium is reported to have a great effect on crevice corrosion. At low Fe concentration, less than 0.1%, iron is present as intergranular β-phase, and crevice penetration is rapid and limited by the ohmic drop due to the corrosion products’ accumulation within the crevice ( 65 ).

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  • An Electrochemical Study of the Reduction and

    2016-1-29 · No selective dissolution of either iron or titanium from ilmenite was observed at all potentials studied. It was suggested that the electrode processes may occur in the solid state. ACCEPTED MANUSCRIPT ACCEPTED MANUSCRIPT 3 Andriamanana et al (1984) studied the electrochemical behaviour of several natural ilmenites in

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  • 高放射性核废料钛储罐深地质环境中氢吸收及氢脆研究进展

    2019-10-18 · 高放射性核废料钛储罐深地质环境中氢吸收及氢脆研究进展. 张琦超1,2,3,4, 黄彦良,1,2,4, 许勇1,2,3,4, 杨丹1,2,3,4, 路东柱1,2,4. 1.中国科学院海洋研究所 中国科学院海洋环境腐蚀与生物污损重点实验室 青岛 266071. 2.青岛海洋科学与技术试点国家实验室 海洋腐蚀与防护 ...

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  • MICROWAVE ASSISTED DISSOLUTION OF SRI LANKAN

    2017-6-1 · The dissolution of both titanium and iron from ilmenite was controlled by a chemical reaction on the surface of ilmenite particles. Maximum extractions of 74.2 (±1.1) % of titanium and 71.3 (±0.8) % of iron from the ilmenite ore were achieved using a microwave leaching system of 600 W, 2.45 GHz. Experimental results further showed that the ...

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  • The Dissolution of titanium in liquid steel | SpringerLink

    The dissolution kinetics of solid cylinders of titanium in liquid steel has been studied. Two separate dissolution periods were identified: asteel shell period anda free dissolution period. During thesteel shell period a customary shell of frozen steel encased the cylinder following its initial immersion. Premature internal dissolution then began as a result of liquid eutectic

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  • Titanium dissolution - Big Chemical Encyclopedia

    Titanium dissolution The discussion in Section 4.2.1 suggested that titanium dissolution may be driven by the reduction of H, the reduction of Oj, or the reduction of oxidizing agents.When titanium is polished in the presence of copper ions, copper ion reduction leads to the oxidation of the titanium.A galvanic couple is formed between the Cu/Cu and the Ti/Ti systems such that

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  • "A study of the dissolution of titanium in acids with ...

    2014-9-26 · "Titanium is practically a new metal. Although it was discovered by W. Gregor in 1791, the pure metal was not prepared until 1910 by M. A. Hunter, and it is only very recently that tremendous interest has been focused on this new metal, as evidenced by the activities of numerous leading laboratories and pilot plants. The reasons that Ti is gaining increasing

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  • A multiparametric study on the dissolution of synthetic ...

    2021-6-2 · Dissolution experiments. Samples of synthetic brannerite were dissolved to conduct a multiparametric study. 25 or 50 mg of powdered brannerite were put

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  • 2021-09-08-Report on pharmaceutical aspects on

    dissolution and stability etc. and potentially new clinical data (e.g. generation of ... provide an analysis with the aim to define the technical purpose of titanium dioxide in medicinal ... concentration across all tablet strengths and additionally, colourants like iron oxide yellow and iron

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  • An Electrochemical Study of the Reduction and

    2016-1-29 · No selective dissolution of either iron or titanium from ilmenite was observed at all potentials studied. It was suggested that the electrode processes may occur in the solid state. ACCEPTED MANUSCRIPT ACCEPTED MANUSCRIPT 3 Andriamanana et al (1984) studied the electrochemical behaviour of several natural ilmenites in

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  • Corrosion of Titanium: Part 1: Aggressive Environments

    2018-7-11 · The content of iron impurities in titanium is reported to have a great effect on crevice corrosion. At low Fe concentration, less than 0.1%, iron is present as intergranular β-phase, and crevice penetration is rapid and limited by the ohmic drop due to the corrosion products’ accumulation within the crevice ( 65 ).

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  • Niobium Solubility (Dissolution)

    2020-8-13 · For example, the addition of other elements into the steel such as Titanium will also influence the dissolution behaviour. Furthermore, some researchers have also shown the influence of elements such as Manganese and Silicon too. 11. As should be noted, with all empirical and semi-empirical equations, some caution needs to be excercised.

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  • 高放射性核废料钛储罐深地质环境中氢吸收及氢脆研究进展

    2019-10-18 · 高放射性核废料钛储罐深地质环境中氢吸收及氢脆研究进展. 张琦超1,2,3,4, 黄彦良,1,2,4, 许勇1,2,3,4, 杨丹1,2,3,4, 路东柱1,2,4. 1.中国科学院海洋研究所 中国科学院海洋环境腐蚀与生物污损重点实验室 青岛 266071. 2.青岛海洋科学与技术试点国家实验室 海洋腐蚀与防护 ...

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