Novel lepidolite flotation method

Abstract

The invention discloses a novel lepidolite flotation method including primary rough selection, secondary fine selection and secondary scavenging. During the flotation, sodium silicate is added as an inhibitor with the amount ranging from 1400g / t to 1900g / t; an anionic collector is sodium oleate or oxyparaffin soap 731 with the amount ranging from 480g / t to 700g / t; and a cationic collector is dodecylamine or coconut oil amine with the amount ranging from 130g / t to 160g / t. The adding sequence of collectors is the anionic collector first and the cationic collector second, or the anionic collector and the cationic collector are added together. By the method, the lepidolite is selected through the combination of the anionic and the cationic, good flotation effect can be realized, flotation efficiency is high, and meanwhile, the synergistic effect is generated between the anionic collector and the cationic collector, and results from joint action of three mechanisms of coadsorption, charge compensation and function complementation.

Description

technical field [0001] The invention relates to a lepidolite flotation method. Background technique [0002] Lepidolite is one of the main industrial minerals for extracting lithium. Lithium is an important energy metal. Its application in high-energy lithium batteries and controlled thermonuclear reactions makes it an important raw material to solve long-term energy supply for human beings. Lithium series products are widely used in smelting, refrigeration, atomic energy, aerospace and ceramics, glass, grease, rubber, welding, medicine, batteries and other industries. my country's lithium resources are relatively rich, but the grade is relatively low, the embedded particle size is fine, and the utilization level is low. The resource advantage has not yet been transformed into an economic advantage. [0003] Different lithium ores have different properties. Due to the different contents of lithium oxide in the minerals and the different types of minerals, the chemical deco...

AI Technical Summary

Problems solved by technology

With the reduction of high-grade and coarse-grained lithium ore resources, in the face of poor, fine, and miscellaneous lithium resources, it is difficult to obtain qualified flotation lepidolite concentrate by using traditional chemical solutions.

Secondly, the flotation process is complicated, the dosage of chemicals is large, and the independence of each link is not strong.

With the depletion of ore resources, it is difficult to use a single traditional beneficiation process

In order to obtain ideal beneficiation indicators, the flotation process is becoming more and more complicated, and the cost of chemicals is increasing; the complexity of the process leads to a decrease in flexibility, and a small link may lead to the paralysis of the entire operation

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