A method for analyzing the distribution characteristics of zinc in gold-copper mine tailings

Abstract

The invention belongs to the technical field of tailing detection and analysis and discloses an analysis method for dissemination characteristics of a zinc element in cuproauride tailings. According to the analysis method, after certain cuproauride in eastern Hubei is floated and graded, a main rock phase in filter pressing tailings discharged into a tailing reservoir is identified through adopting an MLA test; the tailings are prepared from six minerals including calcite, quartz, siderite, chlorite, andradite and potassium feldspar, which account for 70 percent or more of the total weight; the calcite, the quartz, the andradite and the potassium feldspar do not contain the zinc element; the zinc element in the tailings mainly exists in the chlorite, the ratio reaches 67.13 percent and thezinc element mainly exists in a micro-size fraction of -15mu m; the content ratios of the zinc element in the other minerals are as follows in sequence: 18.23 percent in the siderite, 11.30 percent in spinel, 2.75 percent in sphalerite and 0.59 percent in limonite. By adopting the analysis method, phase composition and dissemination characteristics of the zinc element in the tailings are obtained, and scientific evidence is provided for comprehensive utilization of the tailings.

Description

technical field [0001] The invention belongs to the technical field of tailings detection and analysis, and in particular relates to a method for analyzing the distribution characteristics of zinc elements in gold-copper ore tailings. Background technique [0002] Zinc is a kind of pollution element with relatively large content in non-ferrous metal beneficiation tailings. In the tailings obtained by flotation, the content of zinc is about 200-300μg / g (0.02%-0.03%), which is greater than The content of other polluting elements such as arsenic, lead, chromium, cadmium, nickel, etc. In conventional leaching experiments and leaching tests, it is difficult to detect the dissolution of zinc. Some researchers have positioned tailings as general industrial solid waste, and in view of the chemical detection of some polluting elements, it has made people comprehensively assess tailings. Don't worry about using it. Only by understanding the phase composition and distribution charact...

AI Technical Summary

Problems solved by technology

[0009] The existing technology tests the chemical form of zinc in tailings and some zinc-containing minerals with obvious peaks, which cannot fully reflect the phase composition and distribution characteristics of zinc in tailings

Therefore, the existing technology cannot provide a reliable scientific basis for the environmental safety of the comprehensive utilization of gold-copper mine tailings

[0010] Due to the low content of pollutant elements in tailings, environmental and geological workers have rarely reported on its phase and distribution characteristics, and there is no literature report on the distribution characteristics analysis system of zinc in gold-copper mine tailings

Images