Desulfurization

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desulfurization

[dē‚səl·fə·rə′zā·shən]
(chemical engineering)
The removal of sulfur, as from molten metals or petroleum oil.

Desulfurization

 

a combination of physicochemical processes that promote the removal of sulfur from molten metal (cast iron, steel). It consists in converting the sulfur dissolved in the metal to sulfides that are either insoluble or poorly soluble in the liquid metal bath (for example, MnS, MgS , CaS, and Na2S). Examples of desulfurizers are lime, sodium carbonate, and metallic magnesium.

References in periodicals archive ?
The Company has developed a patented safe and economic process employing ultrasound technology to desulfurize and hydrogenate crude oil and other oil related products.
Houston based SulphCo has developed a patented safe and economic process employing ultrasound technology to desulfurize and hydrogenate crude oil and other oil related products.
Unlike ACIPCO, who perfected the basic slag cupola, Clow, according to Kirgin, was the first company to continually externally desulfurize ductile iron to prepare it for Mg treatment, which is the predominant method used for cupola-melted iron today.
The technique was used to desulfurize, nodulize and preinoculate molten iron.
The addition of magnesium desulfurizes the iron and causes the graphite to grow as nodules rather than flakes, however, the nodule size and nodularity can vary depending upon composition and cooling rate.