Method for measuring acid-soluble copper in copper ore

Abstract

The invention provides a method which can quickly measure content of acid-soluble copper in copper ore. After weighing of the ore, 5% of sulphuric acid and sodium sulfite are added into the ore. Furthermore after oscillation on an oscillator for one hour, filtrate is filtered and volume is fixed. Then 5% sulfuric acid medium copper solution is prepared and is measured in an atomic absorption spectrophotometer, thereby greatly shortening testing time and improving testing repeatability and reproducibility. The method can accurately reflect content of sulphuric acid leached copper in producing ore or copper concrete. The method for measuring the acid-soluble copper has advantages of effectively shortening measuring time, preventing a problem of inaccurate measurement caused by overlong sulphuric acid smoking time and solution sputtering because of overhigh temperature in a smoking process, measuring the acid-soluble copper in different copper ore standard samples in China and other countries, and realizing relatively high accuracy.

Description

technical field [0001] The invention belongs to the field of rock ore testing, and in particular relates to a method capable of quickly measuring the content of acid-soluble copper in copper ore. Background technique [0002] Congo (gold) copper ore resources in Africa are relatively rich, and most of them are sulfur-oxygen mixed copper ore. When this type of copper ore is treated by flotation and acid leaching, the content of acid-soluble copper in the ore has a greater impact on the beneficiation and smelting performance of the ore. Large is an important indicator that needs to be mastered. The existing determination methods all follow the determination method of copper oxide in copper phase analysis, which has the disadvantages of long measurement time, poor control of reproducibility when the content of acid-soluble copper is high, and disconnection from production. Contents of the invention [0003] The object of the present invention is to provide a kind of assay me...

AI Technical Summary

Problems solved by technology

The existing determination methods are based on the determination method of copper oxide in copper phase analysis, which has the disadvantages of long measurement time, poor control of reproducibility when the content of acid-soluble copper is high, and disconnection from production.

Images