Method for rapidly detecting contents of manganese, silicon and phosphorus elements in ferromanganese

Abstract

The invention provides a method for rapidly detecting the contents of manganese, silicon and phosphorus elements in ferromanganese. The method comprises the following steps of: measuring the light absorptivity of a measured substance at a specific wavelength by using a photometric method, carrying out qualitative and quantitative analysis on the substance, and obtaining corresponding element content values in a standard working curve of the manganese, silicon and phosphorus elements according to an absorption spectrum curve. Through weighing and dissolving once, a photometric method and a combined testing means are adopted, common analytical instruments and reagents are utilized, smoking treatment measures and complex and uneasy-to-control analysis steps are avoided, the operation procedure is simplified, the Mn, Si and P elements in the ferromanganese can be accurately, more quickly and jointly measured at low cost according to the simple, quick, accurate and cheap high-speed analysis principle and environment-friendly experimental requirements for low toxicity to personnel and low pollution to the atmosphere, the experimental period of the ferromanganese is greatly shortened, and the analysis cost is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of chemical analysis, in particular to a rapid detection method for the contents of manganese, silicon and phosphorus in ferromanganese. Background technique [0002] Mechanical products are inseparable from steel raw materials and castings. Ferromanganese is one of the most commonly used ferroalloys in the metallurgical and foundry industries as an alloying element additive and a deoxidizing and desulfurizing agent in steelmaking and casting production. After ferromanganese is purchased, quality testing is generally required so that technicians can master its true chemical composition and smelt qualified molten metal. For the detection of C and S elements in ferromanganese, a carbon-sulfur high-speed automatic analyzer can be used for rapid determination; for the three elements of Mn, Si, and P in ferromanganese, ammonium nitrate oxidation trivalent manganese titration method, silicon molybdenum blue photom...

AI Technical Summary

Problems solved by technology

The traditional method needs to deal with fumes during the experiment (acid fume pollutes the atmosphere and is very poisonous to the operator), there are many kinds of reagents used, the operation procedures are complicated and difficult to master, and some also need to use special experimental equipment. The determination of an element needs to be weighed and dissolved separately, which is time-consuming and labor-intensive, and wastes analysis costs

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