The pyrite re-election experimental study

Nanjing in yuntai mountain pyrite mine is located in nanjing jiangning area territory, yuntai mountain is located in the section of the mine ore mining overall low grade, mainly useful for pyrite mine mineral, 17% on average, direct sales difficulties. But the mineral QianBuLiDu thicker, can try to use re-election ways to improve their grade. Through the gravity of minerals is optional for research and the minerals every level of the grade, for sulfuric acid workshop and mixed ore, produce the high grade powder grinding formulate rational process flow.

Second, the heavy choose test-pyrite heavy liquid separation

(a) ore samples from selecting workshop, already crushing and screening into seven levels, the particle size range for-20 + 0 mm, undressed ore grade of 17.02%

(2) instrument, and the vessels, elixir

Instruments: balance, broken sample preparation equipment, blender

The vessels: wash basin, sample basin, a sieve, beaker, RongLiangPing, mesh spoon, etc

The potion: two iodine, potassium of mercury

(3) the test process briefly reviewed

1, take 6 kg ore samples, divided into-20 + 3, 3 + 0 two levels,-20 + 3 levels in 3 mm on sample sieve flush, collection screen or screen, respectively, drying, weighing, screen sample preparation, test or;

2, says take effective permittivity, two 1.5 kg of iodine mercury 1.86 kg, 537.6 ml water, stir to dissolve the mixture, the proportion;

3 Plant material grinding mill prices the heavy fluid, take respectively proportion made up with 2.85, 2.75, 2.70, 2.65 g/ml of heavy liquid 300 ml;

4, will be the first step on the screen to collect things, cooling in the drying after heavy fluid from large to small according to the order of the divided into five products, the products are washed, dried, weighing, broken, sample preparation, laboratory.

(4) test results