SU650658A1 - Collector for flotation of clay slurry from potassium ores - Google Patents

Description

The invention relates to the enrichment of minerals by the flotation method and can be used for the flotation of clay, such as potash and other ores.

During the flotation of potassium salts with a high content of clay sludge by cationic collectors, the final operation is the preliminary removal of thin clay particles by preliminary flotation after treatment of the sludge with special reagents with collector mi.

Oxidized white spirit (FR-2) mixed with kerosene, higher fatty alcohols Cu-Ci9, etc. are used as a collector of clay slimes.

However, the use of these reagents does not sufficiently selectively allow the process of sludge flotation. In addition, some of them have a sharp, unpleasant zlpach, combustible, and therefore the sanitary condition of factories, especially in summer, is significantly deteriorated.

The closest to the described invention to the technical essence and the achieved result is the process of flotation of potash ores, in which for the flotation of clay sludge as a collector

high molecular weight polyethylene glycol with a molecular weight of at least 1000 or its derivatives, namely high molecular weight proteins: glue, gelatin, albumin, casein 2 are used. part of the sludge, and the remaining flotation by cationic collectors together with sylvinite in concentrate, which reduces the quality of the latter and increases the consumption of the expensive cationic collector in the flotation of potassium salts.

Known connection: copper salt Gly5 Cocol 3 formulas

CHa-NH, s / 0-CO

SO-O - NNa-SN

earlier in flotation not used vsees.

The aim of the invention is to increase the degree of separation of clay sludge and to provide higher technological performance during the subsequent flotation of potassium salts.

This goal is achieved by the fact that during the flotation of clay slurries the copper salt glycocoll is used as a collector reagent. The reagent was tested in laboratory conditions on a sample of clay potassium ore containing clay sludge in an amount of 3.5-3.8%. Example. An ore weighing 156 g, crushed to a particle size of 0.5 mm, is loaded into the FM-1 camera of a 0.5 l volume. In flotation, the mother liquor with a density of 1.236 is used as the liquid phase. The following reagents are supplied to flotation: as a collector of clay slimes, a glycocol solution with a pH of 8.5 (1% 200-500 g / t), flotation time - 1.5 minutes. Then to extract sylvite

cationic collector heated to 60-65 ° C, 0.5% octadecylamide solution (ODA-90 g / t) and pine oil - 100 g / t, agitation time - 0.5 min, flotation time - 2 ,5 minutes.

The use of a glycocol solution (pH 8.5) as a collector of clay slimes makes it possible to isolate the latter into a separate product at a flow rate from 250 to 350 g / t by 42.4-46.0%. It provides higher technological performance.

sludge from potash ores.

Sources of information taken into account in the examination

1. Flotation of soluble salts. Minsk, 1971, p. 59-61.

2. The patent of Germany No. 1275973, cl. I, 10/10, 1969.

Claims (1)

3. Chichibabin A. E. Basic principles of organic chemistry. T. 1, M., Goskhimizdat, 1953, p. 671. during the subsequent flotation of sylvinite with a cationic collector, the quality of potash concentrates increases from 82.5% to 86.6% with a simultaneous increase in recovery from 94.2% to 95.5%. Thus, the main advantage of the invention is to increase the degree of separation of the clay beds and increase the technological performance of the subsequent sylvinite flotation from the ores. The invention The use of the honey salt glycocol as a collector for flotation clay