SU889102A1 - Method of flotation of sulphide copper-molibdenum ores - Google Patents

Description

one

This invention relates to the beneficiation of minerals, in particular the enrichment of copper-molybdenum ores.

There is a method of flotation of sulfide copper-molybdenum ores, including pre-conditioning of the ore with a modifier and the introduction of Xan. togenat and foaming agent 11.

O; however, this method is characterized by insufficiently high extraction of molybdenum and the length of the process over time.

The circuit of the invention is to increase the recovery of molybdenum and reduce the flotation time.

The goal is achieved by mixing xanthate with potassium iodide prior to being introduced into the process.

Potassium iodide is soluble in water, is a strong reducing agent when interacting with dixanthogenide forms potassium xanthate, destroys the structure of Bopibt, the entropy component G. A, Krestova equals 2O.7 e. with.

Potassium iodide cleans the surface of sulphides from oxidized films and thereby improves the adsorption of xanthanogenate on the surface of the fleet of sulphides.

An aqueous solution of the reagent is used in flotation. Potassium iodide is dissolved in water at room temperature (at a concentration of up to 0.1% concentration. Its solution is mixed with a 1% - aqueous aqueous solution of butyl xanthate and the resulting mixture was flooded.

Example. A portion of the ore of the current mining of the Tyrnauzskoye deposit with

Claims (1)

15, molybdenum content O, O45% and copper 0.014% are ground in a ball mill to yield a class of 0.074-61.5%. Soda (2500 g / t) and transformer oil (4 g / t) are fed to the grinding. After the change, the batch is floated with butane xanthate (8 g / t) with the addition of potassium iodide and a mixture of foaming agent T-6 6 (18 g / t) and terpeniol (32 g / g). The consumption of potassium iodide varies from 0 to 80 g / t. Concentration is taken in portions - for 2 and 4 min. Potassium iodide is an active reagent that facilitates the transition in the first two minutes of flotation of a significant amount of molybdenum, as a result of which the total recovery to the concentrate increases. PW; this optimum potassium iodide consumption is 12 g / t. With this consumption, the extraction of molybdenum increases by 5.9%. Copper extraction is practically unchanged throughout the entire range of consumption of potassium iodide (8-80 g / t). Similar tests were carried out on samples of ore from the Soroky and Chorukh-Dayron deposits. The same patterns are observed in the flotation of these ore samples as in the flotation of the ore sample from the Tyrnauzskoye deposit. The recovery of molybdenum in the concentrate during the flotation of the Forty ore increased by 4.4%, and in the flotation of the Coruh-Dayron ore - by 1.9%. 2.4 It was established that the optimal ratio of the consumption of xanthate and potassium iodide depends on the properties of the ore and is 1: 15 (Tyrnauzsk ore), 1: 1 (Sorsk ore), 1: 0.5 (Black Dyuronsk ore). Claims The method of flotation of sulfide copper-molybdenum ores, including preconditioning the ore with a modifier and the introduction of xanthate and foaming agent, characterized in that, to increase the recovery of molybdenum and shorten the flotation time, the xanthate is mixed with potassium iodide prior to introduction into the process, taken into account in examination 1, Barsky L. A, Plaksin I, N, Tyurnikova V, I. Complex enrichment of molybdenum ores. M., Science, 1965, p. 89-91.