High Level Alloy Ferro Chrome

The methods for determining ferro chrome ore were discussed. Firstly, existing methods were verified and screened, and then the dissolving effect of Li2SO4 flux and its reaction mechanism were studied. As a result, two improved solvent systems, H2SO4-H3PO4-V2O5-V(IV)-Li2SO4 and H2SO4-H3PO4-Ce(SO4)2-Li2SO4, were recommended for the determination of ferrous iron in chromite samples, with satisfactory reproducibility of the results.

1.The analysis of aluminum and ferro chrome ore often uses volumetric methods, which usually require the separation of chromium, making the process complicated and time-consuming. The classic 8-hydroxyquinoline spectrophotometric method for determining aluminum and iron is relatively complex, requiring the solution of simultaneous equations to find the aluminum content, which is both time-consuming and not easily accurate. The use of a dual-wavelength spectrophotometric method can overcome these shortcomings and improve selectivity and accuracy. This article discusses the determination of aluminum (III) and iron (III) using 8-hydroxyquinoline as a chelating agent and chloroform as an extraction agent in the presence of large amounts of chromium, magnesium, silicon, and small amounts of calcium in chromite ore. Various influencing factors are discussed, achieving the accuracy requirements of conventional analytical methods for chromite.

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