Iron(II) sulfide is a fascinating chemical compound that plays a significant role in various fields, including geology, chemistry, and industry. Made up of iron and sulfur, this compound is known for its dark, metallic appearance …
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The total sulfide concentration (ST) increased together with waste iron powder concentration and was fitted with a quadratic equation with a maximum ST of 208.0 mg/L at waste iron powder of 20.2 g/L. Waste iron powder did not have significant effect on methane yield in batch and bench experiments.
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A mixture of iron filings and sulfur powder could be separated in exactly the same way. Image caption, ... sodium + sulfur → sodium sulfide. magnesium + bromine → magnesium bromide.
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That is to use magnetic separation to recover iron, and flotation to recover sulfide or apatite. ... 2 After drying and dehydration in a dryer, the dried iron concentrate powder is obtained. Through the above process, the magnetite processing plant can obtain more than 65% of high-quality iron ore concentrate, and the recovery rate is as high ...
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Re-sulfurizing a magnesium treated iron for compacted graphite iron production, in conjunction with knowing the initial base iron sulfur enables control of the graphite nodularity. Specially formulated iron sulfide briquettes (FeS2), dissolved more rapidly than granular iron pyrites yielding sulfur recoveries in the range of 85 to 90 percent.
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Sulfur is removed from the impure blast furnace iron by the addition of several hundred kilograms of magnesium powder by a lance. Magnesium sulfide is formed, which then floats on the molten iron and is removed. Magnesium sulfide can be formed by a reaction between hydrogen sulfide and magnesium. H 2 S + Mg = MgS + H 2
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E-beam Evaporation of Magnesium (Mg) We recommend a FABMATE ®, graphite, or tungsten crucible liner when e-beam evaporating magnesium. High rates of deposition are possible under this method. A key process note is to consider the fill volume in the e-beam application because we find that the melt level of a material in the crucible directly affects the success of the …
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The iron in the steel reacts with hydrogen sulfide to create an iron crust scale on the metal surface. When a refinery processes sour crude oil, the hydrogen sulfide present in the crude oil causes this problem to develop. …
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The enhancement in the electrocoagulation-flotation process for treatment of wastewater using monopolar iron and aluminum electrodes was investigated and the optimum conditions found were at pH5-7, current density 20mAcm −2, NaCl concentration 2 g/L; the removal of COD was 84% and 80% using Al and Fe electrodes respectively.
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The most common precipitating agents used are iron salts, such as ferric chloride or ferrous sulfate, resulting in the formation of iron sulfide precipitates. The biggest benefits of this treatment are that iron salts are relatively inexpensive and they react rapidly with H 2 S to give a quick knock-down of odor. On the negative side, these ...
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Blast furnace slag is a solid waste formed by gangue in ore, ash in fuel and nonvolatile components in solvent (generally limestone) in the process of blast furnace ironmaking. It mainly contains oxides of calcium, silicon, …
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The total sulfide concentration (ST) increased together with waste iron powder concentration and was fitted with a quadratic equation with a maximum STof 208.0 mg/L at waste iron powder of 20.2 g/L. Waste iron powder did not have significant …
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Magnesium Powder can also be recycled at the end of its useful life, reducing waste and promoting a circular economy. Its unique properties, including its light weight and high strength-to-weight ratio, make it a popular choice in various applications, such as aerospace, automotive, and electronics industries. ... Tungsten (IV) Sulfide, WS₂ ...
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Semantic Scholar extracted view of "Valorizing waste iron powder in biogas production: Hydrogen sulfide control and process performances." by F. J. Andriamanohiarisoamanana et al.
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In the thermal reduction process, magnesium oxide, as a component of calcined dolomite, reacts with a metal such as silicon to produce magnesium. The silicon is usually alloyed with iron.
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The pig iron was treated with the magnesium reactant in 140-ton iron-pouring ladles by a method similar to that used with passivated magnesium [N. A. Gurov, N. N. Popov, I. I. Shestopalov, et al., Metallurg, No. ii, 13-15 (1975)].
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Jerroumi et al. studied the removal of Ni 2+ from industrial wastewater using a Na2S reagent under atmospheric conditions and achieved the highest metal nickel removal at a pH of 5 at an S 2− ...
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Re-sulfurizing a magnesium treated iron for compacted graphite iron production, in conjunction with knowing the initial base iron sulfur enables control of the graphite nodularity. Specially …
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An extraction rate of 97.2% for nickel and 9.8% for iron, but very low extraction rate of chromium (Cr)and the refractory metals (niobium (Nb), molybdenum (Mo), and titanium (Ti)) were obtained under the optimal conditions of the heating temperature of 800 °C, the heating time of 240 min, and the mass ratio of alloy to magnesium of 1:5. In the ...
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Sulphate (SO 4 2−) ion is a divalent inorganic anion, and sulphur is a vital nutrient element form for living stocks, thus sulphate is a common nutrient and naturally occurs in water and wastewaters [10].Its concentration varies depending on the location for example, in rivers from 0 to 630 mg/L, lakes 2–250 mg/L, ground water 0–230 mg/L, sea water up to 2700 mg/L …
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Under anaerobic environments, sulfate-reducing bacteria (SRB) reduce sulfate to sulfide in sewers, which is present in the forms of H 2 S, HS − and S 2− (collectively called dissolved sulfide or sulfide) in sewage. Sulfide could accumulate to high levels in sewers, particularly in networks with a long transport time.
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The synthesis of nanoscale zero-valent iron is an expensive process and if it is synthesized from natural sources such as natural zeolite and hydrothermal zeolite, it becomes cheaper. Nanoscale zero-valent iron synthesized from natural and hydrothermal zeolite has a removal rate of 95.1 and 91.3%, respectively, at the pH value of 1.0.
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Magnesium sulfide is colorless to brown crystal powder, which is sulfide of magnesium. It is of sodium chloride type structure and the chemical property is similar to other ionic type sulfide compounds as sodium sulfide, barium sulfide and calcium sulfide. Magnesium metal and pure sulfur are the raw materials. It dissolve in diluted ...
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Interesting Reactions. Aluminium sulfide participates in some intriguing chemical reactions. Here are a few examples: With Water: Reacts with water to produce aluminium hydroxide and hydrogen sulfide gas.. With Acids: Reacts with acids to form aluminium salts and hydrogen sulfide gas.. With Bases: Can react with strong bases to form complex aluminium …
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Being a strong reactant that forms stable compounds with chlorine, oxygen, and sulfur, magnesium has several metallurgical applications, such as in the production of titanium from titanium tetrachloride and in the desulfurization of …
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Even though the industrialization of Li 2 S nano-powder material has been realized to some extent, the preparation process is still very complex, resulting in a high price as a commercial product. Meantime, high price does not result in high quality. Currently, Li 2 S nano-powder material suffers from low purity and large particle size, which greatly deteriorates its …
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Sulphur has to be removed first in a separate process. Magnesium powder is blown through the molten iron and the sulfur reacts with it to form magnesium sulfide. This forms a slag on top of …
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The total sulfide concentration (S T) increased together with waste iron powder concentration and was fitted with a quadratic equation with a maximum S T of 208.0 mg/L at waste iron powder of 20.2 g/L. Waste iron powder did not have significant effect on methane yield in batch and bench experiments. However, hydrolysis rate constant was ...
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The air blown into the bottom of the furnace is heated using the hot waste gases from the top. Heat energy is valuable, and it is important not to waste any. ... Sulphur has to be removed first in a separate process. Magnesium powder is blown through the molten iron and the sulfur reacts with it to form magnesium sulfide. This forms a slag on ...
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Occurrence of Magnesium Sulfide-The occurrence of Magnesium sulfide can be in the following forms-It occurs as a component of some slags (Slag is a by-product of smelting ores and used metals. It can be found in some meteorites. For example- Niningerite is a magnesium-iron-manganese sulfide mineral that is found in enstatite chondrite meteorites.
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Since the optimal pH for precipitation depends both on the metal to be removed and on the counter ion used (hydroxide, carbonate, or sulfide), the best treatment procedure must be …
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The presence of iron in the host rock regulates the extent to which sulfide is incorporated into nascent petroleum deposits: in clastic (silicate) sequences, available iron scavenges sulfide to form troilite (FeS), and subsequently pyrite (FeS 2). Carbonate sequences, by contrast, tend to lack sufficient iron to generate significant amounts of ...
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The coagulation process is a widely applied technology in water and wastewater treatment. Novel composite polyferric magnesium–silicate–sulfate (PFMS) coagulants were synthesized using Na2SiO3·9H2O, Fe2(SO4)3, and MgSO4 as raw materials in this paper. The effects of aging time, Fe:Si:Mg, and OH:M molar ratios (M represents the metal ions) on the …
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The total sulfide concentration (S T) increased together with waste iron powder concentration and was fitted with a quadratic equation with a maximum S T of 208.0 mg/L at waste iron powder of 20.2 ...
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In this study, an adsorbent made of alginate (Alg) caged magnesium sulfide nanoparticles (MgS) microbeads were used to treat lead ions (Pb 2+ ions). The MgS nanoparticles were synthesized at low temperatures, and Alg@MgS hydrogel microbeads were made by the ion exchange process of the composite materials. The newly fabricated …
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