Fluorite floatation process

Abstract

The invention discloses a fluorite floatation process, which comprises the following steps of (1) preparing a raw material: taking low-quality fluorite ores as the raw material, and taking linoleic acid, peanut oil and sodium dodecyl sulfate as a collecting agent, wherein the collecting agent is obtained by fully and uniformly mixing the linoleic acid, the peanut oil and the sodium dodecyl sulfate; (2) grinding the raw material into powder: grinding the low-quality fluorite ores to obtain powdery fluorite in an ore grinding machine, wherein the granularity of the powdery fluorite is 200 meshes; (3) performing floatation: adding water in an amount which is 4 times the weight of the powdery fluorite into the powdery fluorite to obtain slurry, sequentially adding sulfuric acid, water glass, hydrofluoric acid and the collecting agent, and performing floatation for three times to obtain floated fluorite, wherein based on the total weight of 100 tons of the slurry, 150 to 350 grams of sulfuric acid is added, 1,000 to 1,500 grams of water glass is added, 450 to 600 grams of hydrofluoric acid is added, and 500 to 750 grams of collecting agent is added.

Description

Technical field: [0001] The invention relates to a mineral flotation separation method, in particular to a fluorite flotation process. Background technique: [0002] Fluorite is a strategic mineral, which plays an important role in the economic development of a country, and is widely distributed all over the world. It has been used as one of the advantageous mineral products for foreign exchange earning in my country for a long time. It has a wide range of uses and can be used In metallurgy, chemical industry, ceramics, cement, glass and other industries. [0003] The general characteristics of my country's fluorite mineral resources are more lean ore, less rich ore, more difficult ore, less easy ore, more symbiotic ore, and less single ore. Over the years, my country's mineral processing technology and equipment have been backward, and the technical level is low. The extraction rate of non-metallic minerals is only 20-40%, which is 10-20% lower than that of the same industr...

AI Technical Summary

Problems solved by technology

Because oleic acid is an organic matter that is difficult to dissolve in water, it often floats on the liquid surface in the form of oil droplets or oil beads, and its dispersion is poor, which seriously restricts its collection of active ingredients in fluorite ore.

In recent years, people have begun to emulsify and modify oleic acid to increase the recovery rate of active ingredients. Although this has improved the dispersion ability of oleic acid, the performance is not ideal

For complex fluorite mines and fluorite flotation tailings, the existing recovery process has problems such as excessive capital investment in the production line, complicated operation process, low recovery efficiency, and a lot of mixed impurities in recovered fluorite.