What are the characteristics of solid phase, liquid phase and gas phase in flotation pulp?

The so-called solid phase refers to finely ground ore particles, the liquid phase refers to water and solution; the gas phase refers to dispersed bubbles.

The characteristics of the solid phase are: 1) There are many types and compositions of minerals; there are often several useful minerals and gangues associated with each other. In terms of shape, the ore particles are square, columnar, flaky and irregularly angular.

2) Wide particle size range: the coarsest particles can reach 0.8-1 mm, and the fine ones are below 5 microns.

3) Large number of grains and large surface area: tens of millions of grains per liter of pulp can reach nearly 100 million. Since the number of fine particles is large, the surface area of ​​the solid phase is large.

The characteristics of the liquid phase are: 1) The action of water and solid phase and gas phase in the slurry. The ore often contains various soluble salts dissolved in water.

2) In natural water for industrial use, it usually contains soluble salts.

3) Oxygen, nitrogen, carbon dioxide, etc. are dissolved in water. So floating liquid mineral slurry is not simply water, essentially a solution, it has a great influence flotation.

The characteristics of the gas phase are: 1) The air is finely dispersed in the slurry, and can carry the ore particles floating.

2) Air can be repeatedly dissolved and precipitated in the slurry.

3) The oxygen in the air has a great influence on the floatability of the mineral.

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