— The nickel and vanadium removal efficiency of Shengli crude oil reached 43.41 and 41.63% at the dosage of WY-1 500 mg/L, reaction time 30 min, and reaction temperature 70°C. With the dosage of WY-1 and increasing reaction time and reaction temperature, the nickel and vanadium removal efficiency of crude oil increased.
— The main production process for titanium metal is known as the Kroll Process. In this process, the main ore, known as rutile, is treated with chlorine gas to produce titanium tetrachloride. This is then purified and reduced to a metallic titanium sponge by reaction with magnesium or sodium. The titanium sponge then undergoes an …
— 1. Introduction. Titanium and vanadium are strategically important resources [1].Titanium alloys have significant application value and broad application prospects in aviation, aerospace, biomedical engineering, and other fields [2], [3].Vanadium is an indispensable element in industrial fields such as steel, nonferrous metals, chemicals, …
The vanadium-bearing hot metal is transferred to a basic oxygen furnace (BOF) and then treated using a controlled oxygen blow to oxidize the vanadium, producing a …
— 1. Introduction. The production of titanium-white mainly includes sulfuric acid method and chloride method, of which the sulfuric acid method is mainly used in Chinese market [1], [2].In recent years, the chloride method has gradually gained market share due to its large production capacity, high product quality, and minimal environmental impact, …
— Metallic atoms hold some of their electrons relatively loosely. Consequently, they tend to lose electrons and form cations. Conversely, most nonmetallic atoms attract electrons more strongly than metallic atoms, and so gain electrons to form anions.
— Vanadium is an important transition metal used in the manufacture of high strength steel alloys, vanadium redox flow batteries, and catalysts [[1], [2], [3], [4]].In particular, in modern energy storage systems, a lot of demand is expected for vanadium redox flow batteries because they are relatively stable and have a better energy supply …
— As the steel industry expands worldwide, slag dumps with transition metals (especially chromium and vanadium) are becoming more common, posing a serious environmental threat. Understanding the properties of slags containing transition metal oxides, as well as how to use the slags to recover and recycle metal values, is critical. …
— For example, when it's alloyed with 6% aluminum and 4% vanadium, titanium has half the weight of steel and up to four times the strength. Uses of titanium. Titanium is a highly corrosion-resistant metal …
Vanadium has oxidation states in its compounds of +5, +4, +3 and +2. This section looks at ways of changing between them. It starts with a bit of description, and then goes on to look at the reactions in terms of standard redox potentials (standard electrode potentials). Observing the changes in the lab. Reducing vanadium(V) in stages to ...
— Abstract Molybdenum, vanadium, and tungsten coexist with other valuable metals in diverse resources. In order to recover these metals with high purity, hydrometallurgical processes consisting of leaching followed by solvent extraction have been developed. The solvent extraction systems for the separation of Mo–V, Mo–W, and …
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— Gas-based reduction roasting magnetic separation process was conducted to separate and recover iron and titanium from oxidized vanadium titano-magnetite (VTM). The effects of reduction temperature, gas composition, reduction time, grinding fineness, and …
A Novel Approach for Separation and Recovery of Titanium, Scandium ... ... a))
— Chemical Separation of Metal Ions. Formation of crystals from a saturated solution is a heterogeneous equilibrium phenomenon, and it can be applied to separate various chemicals or ions in a solution. When solubilities of two metal salts are very different, they can be separated by precipitation.
Titanium processing - Extraction, Refining, Alloying: The production of titanium metal accounts for only 5 percent of annual titanium mineral consumption; the rest goes to the titanium pigment industry. Pigments are produced using either a sulfate process or a more environmentally acceptable carbo-chlorination process (described below) that converts …
mixtures can be separated using various separation methods such filtration,separating funnel,sublimation,simple distillation and paper chromatography.. The methods stated above are all physical methods. There are also chemical methods, which are used by rearranging the particles so a certain substance no longer exists (chemical reaction).
— Titanium, chemical element, a silvery gray metal of Group 4 (IVb) of the periodic table. It is a lightweight, high-strength, low-corrosion structural metal and is used in alloy form for parts in high-speed aircraft. Titanium is widely distributed and constitutes 0.44 percent of Earth's crust.
— How to efficiently separate or enrich titanium from vanadium-titanium magnetite is the premise for its effective utilization. At present, there are mainly two …
— Alloying elements in Ti alloys usually act as α or β stabilizers, which are required to achieve the desired mechanical properties, including tensile strength, creep, and fracture toughness, as well as resistance to degradation modes such as fatigue crack propagation, stress-corrosion cracking, and oxidation [1], [3], [11], [12].Further …
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— One practical application of chemistry is that it can be used to help separate one substance from another. The reasons materials may be separated is because there is some difference between them, such as size (separating rocks from sand), state of matter (separating water from ice), solubility, electrical charge, or melting point.
— Evaporation. Evaporation is a technique used to separate out homogeneous mixtures that contain one or more dissolved salts. The method drives off the liquid components from the solid components. The process typically involves heating the mixture until no more liquid remains.
The impurities removed include vanadium, silicon, magnesium, zirconium, and iron. Sponge Formation. In the sponge formation stage, purified titanium tetrachloride is transferred into a stainless steel reactor vessel while still in liquid form. Magnesium is added to the vessel, and the mixture is heated to 1100°C, allowing the magnesium to ...
— Vanadium is an important transition metal which is widely applied in many fields due to its specific properties (Lee et al. 2003; Righter et al. 2016) (Rehder 2008) (Mukherjee et al. 2004).In the crustal, the vanadium content is in an average of 138 ppm ranged from 97 to 196 ppm (Roberta L. Rudnick and Fountain 1995; Yang et al. …
— Titanium is a chemical element with the symbol Ti and atomic number 22. It is a lustrous, silver-grey transition metal known for its high strength, low density, and excellent corrosion resistance. Titanium is widely used in various industrial applications due to its unique properties. Some of the basic properties of titanium include:
— Vanadium(V) oxide as a Catalyst. During the Contact Process for manufacturing sulfuric acid, sulfur dioxide has to be converted into sulfur xide, which is done by passing sulfur dioxide and oxygen over a solid vanadium(V) oxide catalyst. [ SO_2 + dfrac{1}{2}O_2 ce{->[V_2O_5]} SO_3 nonumber ] This is a good example of the …
Vanadium (V) is a grayish silver metal whose crystal structure is a body-centred cubic (bcc) lattice, with a melting point of 1,926° C (3,499° F). The metal is used principally as an alloying addition to high-strength low-alloy (HSLA) steels and, to a lesser extent, in tool steels and iron and steel castings. ...
— We present an optimized magnetic separation process to improve the recovery of high-content vanadium and titanium concentrates from vanadium‑titanium …
— Vanadium slag is a strategic vanadium extracting source, which is produced from the hot-metal treatment prior to the basic oxygen steelmaking (BOS) or during the …
— With TIG, controlling the weld puddle and the heat-affected zone is much easier to protect the weld puddle from environmental contamination. You can also use MIG welding (GMAW), but I wouldn't recommend it as it can generate too much heat and spatter for titanium welds, leading to contamination.. Other processes used to weld titanium are …
— In this study, an efficient utilization of vanadium titanomagnetite concentrate was systemically investigated through potassium pyrosulfate (K2S2O7) synergized with …
— Vanadium is a beta stabilizer and widens the temperature range and cooling conditions where beta can be retained Oxygen is also used as an alloying element. Oxygen is normally regarded as a harmful impurity but by carefully controlling the …
The beta phase is stabilized by vanadium, molybdenum, iron, and chromium, and various alpha-beta alloys have been created. These are typically medium to high-strength materials, with tensile strengths ranging from 620 to 1250 MPa and creep resistance ranging from 350 to 400°C. Low and high cycle fatigue and fracture toughness are increasingly ...
