A small amount of magnesium oxide can not only increase the desulfurization rate, but also reduce the corrosion of the ladle lining and prolong the age of the ladle. At the same time, in the LF refining process, the size and time of the desulfurization rate also have an obvious linear relationship.
The principle is basically studied that the hydration may enhance the desulfurization performance of the slag. ... The original magnesium slag has poor desulfurization activity, so modification ...
3.1 Desulfurization mechanism of hot metal with magnesium vapor injection. The changes in the content of magnesium in molten iron at different temperatures are shown in Fig. 2.It can be seen from Fig. 2 that the content of magnesium in molten iron remains about 10 × 10 −6 without change throughout the desulfurization …
The byproducts of flue gas desulfurization using magnesium (Mg) oxides in aqueous environment are hard to utilize. ... Fractal analysis on pore structure and …
The desulfurization reaction is mainly in the homogeneous phase, and the proportion of magnesium bubble desulfurization could be ignored when the temperature is higher than 1523K. View Show abstract
The concentrations of hardness ions in saline wastewater from flue gas desulfurization (FGD) are usually very high, which could result in severe membrane fouling in consequent membrane systems. Hence, we investigated the feasibility of recovering Mg 2+ from saline wastewater collected from a coal-fired power plant through utilizing …
To reduce the cost of the current commercial desulfurization and eliminate effluents, the MgO-based desulfurizer fixed bed desulfurization tests were carried out in a dry environment. By means of X-ray diffraction, scanning electron microscopy, and X-ray photoelectron spectroscopy, the absorption effects of the MgO-based desulfurizer on …
Almamet is a leading supplier in the areas of hot metal desulfurization, Grignard reactions and pyrotechnics. Through its many years of experience the world over, Almamet has acquired comprehensive know-how, which forms the basis for successful cooperations. ... Almamet primarily uses magnesium with a purity of at least 99.90% for the ...
Modified magnesium slag could be used as a kind of practical desulfurizer. Four modification methods were studied in this paper, which were magnesium slag …
Modified magnesium slag could be used as a kind of practical desulfurizer. Four modification methods were studied in this paper, which were magnesium slag hydration, magnesium slag/fly ash hydration, magnesium slag quenching hydration and magnesium slag/additives hydration. The desulfurization performance of modified …
An experimental study has been performed on the desulfurization performance of the original magnesium slag (from the process of magnesium production). The total content of CaO and Ca2SiO4 is near 90% in the slag, but its conversion rate is below to 30% as desulfurizer directly in the experimental conditions. The aim of this paper is to enhance …
Figures 4–6 represent the effect of reaction temperature on desulfurization using different magnesium injection processes. Compared with the magnesium vapor process in Figs. 5 and 6, the magnesium powder is directly injected by bottom blowing in Fig. 4, and the particle size of …
Irons, 6) Jian Yang [7][8][9] [10] [11] and Haiping Sun 1) have elaborated the basic principle of desulfurization reaction with magnesium vapor, but the effect on the utilization rate of magnesium ...
Wet Flue Gas Desulfurization (WFGD) is a flue gas purification technology widely used in coal-fired power plants, steel sintering machines, marine exhaust gas washing (Caiazzo et al., 2013), etc. Desulfurization efficiency is the core of SO 2 removal. In principle, the absorption process can be regarded as a gas-liquid mass transfer.
DOI: 10.1016/j.jmrt.2022.01.070 Corpus ID: 246263559; The hydration mechanism of magnesium oxysulfate cement prepared by magnesium desulfurization byproducts @article{Du2022TheHM, title={The hydration mechanism of magnesium oxysulfate cement prepared by magnesium desulfurization byproducts}, author={Huihui Du and Jiajie Li …
the magnesium vapor react with the dissolved sulfur in the molten iron rapidly. The utilization rate of magnesium is one of the important parameters for evaluating the hot …
A water model was established based on the similarity principle. Experimental phenomena ... Direct desulfurization Molten magnesium Magnesium vapor Bubbles disintegra-tion and dispersion Bottom blowing Desulfurization efficiency Introduction In the modern iron and steel industry, desulfurization by hot ...
The principle is basically studied that the hydration may enhance the desulfurization performance of the slag. ... The original magnesium slag has poor desulfurization activity, so modification ...
The principle of desulfurization of magnesium oxide is that the basic oxide reacts with water to form a hydroxide, and then reacts with a sulfurous acid solution formed by dissolving sulfur dioxide in water to carry out an acid-base neutralization reaction, and the magnesium oxide reacts to form magnesium sulfite. ...
An industrial demonstration unit using natural gas as a heat source was built to calcine the by-products of MgO wet flue gas desulfurization from power plants; influencing factors on the SO 2 content in calciner gas were comprehensively analyzed; and an advantageous recycling condition of MgO and SO 2 from by-products was …
The desulfurization principle with magnesium based reagent and the comparison of magnesium based reagent and other reagents in terms of desulfurization results were described. The effects of CaO ...
The reaction of magnesium with hot metal may be activated by expanding the mass-transfer surface within the bath. To this end, a more uniform injection flux is organized by dividing the flux into ...
The mechanism of resulfurization in the desulfurization process with magnesium vapor produced in situ by aluminothermic reduction of magnesium oxide was clarified in the present work.
To reduce the cost of the current commercial desulfurization and eliminate effluents, the MgO-based desulfurizer fixed bed desulfurization tests were carried out …
The desulfurization reaction is mainly in the homogeneous phase, and the proportion of magnesium bubble desulfurization could be ignored when the temperature is higher than 1523K. View Show abstract
Magnesium sulfite oxidation is a key factor influencing the desulfurization efficiency and effluent quality of magnesium desulfurization processes. Non-catalyzed jet aeration is a promising method for the oxidation of magnesium sulfite because of its high gas-liquid mass transfer efficiency. ... As per the Bernoulli's principle, a low ...
The circular economy operates on the fundamental principles of "reduction, resource, and reuse." Its objective is to maximize resource efficiency, minimize environmental impact, and foster the harmonious and sustainable development of social, economic, and environmental benefits. ... observing a favorable effect on …
Wet magnesium oxide is the reaction of MgO and water to produce a magnesium hydroxide slurry for flue gas desulfurization. This method has a high …
This paper is to describe the high efficiency of magnesium hydroxide desulfurization technology in 60 MW thermal power plant in Rietnam. By spraying magnesium hydroxide Mg (OH) 2 slurry, the principle of wet desulfurization (WFGD) is that the boiler flue gas will react with the slurry for the …
desulfurization, magnesium is finely distributed in a mixture as an oxide or sulfide in the slag, can no longer be economically recycled and is ... The fact that the process works in principle was demonstrated on a laboratory and pilot plant scale by ITM in cooperation with FW and OCC . FW, one of the largest foundries in the world, ...
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