Phase identification method for vanadium slag rich in various impurity elements

Abstract

The invention discloses a phase identification method for vanadium slag rich in various impurity elements. The phase identification method comprises the following steps: preparing a vanadium slag standard sample; preparing a vanadium slag inlaid sample; preparing a vanadium slag polished section sample; placing the vanadium slag polished section sample under a polarizing microscope, regulating the polarizing microscope to a reflected light mode, observing colors and crystal forms of all phases on the vanadium slag polished section sample under a reflected light, predetermining varieties of all the phases and primarily marking the vanadium slag polished section sample; preparing a vanadium slag bonding sample; preparing a vanadium slag slice sample; placing the vanadium slag slice sample under the polarizing microscope, regulating the polarizing microscope to an orthogonal polarizing mode, observing colors and crystal forms of all phases on the vanadium slag slice sample under an orthogonal polarized light, secondarily determining the varieties of all the phases and secondarily marking the vanadium slag slice sample; respectively placing the secondarily marked vanadium slag slice sample under a scanning electron microscope in a way that a primarily marked face and a secondarily marked face are downward, and dotting and analyzing all the marked phases by an energy disperse spectroscopy to obtain the content of the elements in all the phases and finally determine all the phases.

Description

technical field [0001] The invention belongs to the technical field of petrographic process mineralogy, and more specifically relates to a phase identification method of vanadium slag rich in various impurity elements. Background technique [0002] my country is one of the three major vanadium-producing countries in the world. There are a large number of vanadium-titanium magnetite resources under the Panxi Rift Valley, and its vanadium reserves account for 11.6wt% of the world and 62.2wt% of the country. Due to the differences in the types of vanadium-containing minerals and production conditions, the techniques for extracting vanadium are also different. Domestically, there are several methods for extracting vanadium from blast furnace vanadium-containing molten iron, including top-blown converter vanadium extraction, slot furnace vanadium extraction, and atomization vanadium extraction. The atomized vanadium extraction method invented by Panzhihua Iron and Steel Co., Ltd...

AI Technical Summary

Problems solved by technology

[0004] At present, there is no relevant literature on the phase identification method of vanadium slag rich in Ti, Mn, Al, Mg, Ca and other impurity elements

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