SU452500A2 - Method of enrichment kaolin - Google Patents

Description

one

: The invention relates to technology

I enrichment of natural clays, in particular kaolin.

i Known method of enriching kaolin by introducing into kaolin suspension

i reagents for selective flocculating

 NIN impurities with the subsequent removal of the latter using the forces of selective

; stitching and magnetic.

This method does not ensure the complete removal of coloring impurities such as iron and titanium oxides in the form of fine particles of modified minerals with reduced magnetic susceptibility.

In order to improve the quality of kaolin purification from coloring impurities, it has been proposed to introduce special agents to the kaolin suspension that enhance the magnetic susceptibility of flocculated coloring impurities, for example, manganpa compound, finely divided magnetite.

In this case, manganese compounds are expediently supplied in the form of 5-1O% aqueous hydrochloride.

Claims (3)

1 emulsion of magnetic soap containing  mineral oil, tall oil and sul fate manganese in a ratio of 5: 0.5: 0.3. Finely divided magnesite is preferably processed in the process. mineral oil and stabilize in a 5O% kaolin suspension. Example. Source kaolin otmuchivayut and treated in such a way that the minerals to be removed, became hydrophobic, and kaolinite remained hydrophilic. Then, the magnetic susceptibility of the floccules of the removed minerals is enhanced by the introduction of special agents — either magnetic soaps or finely ground minerals. mineral magnesite-treated magnesite. Liquid glass (1.5 kg / t), ammonium sulfate (1.5 kg / t), ammonium hydroxide (1, O kg / t) are introduced into the dried kaolin and stirred for 5 minutes; magnetic soaps in the form of a 5-1% aqueous emulsion (0.5 kg / ton) are transferred for 10 minutes. The ratio of the components in the emulsion of magnetic soaps - mineral oil: tall oil ;, manganese sulphate 5: O, 5: O, 3.I Instead of magnetic soaps, finely ground magnetite (10 kg / ton) treated with mineral oils can be used, which is supplied in the form of a stabilized suspension. The suspension is obtained as follows. 10 g of finely ground magnetite with a particle size of 50 microns process 2.5 g diesel fuel, puyu ultrasonic processing or intensive mechanical mixing. Indicators of kaolin purified by the known and proposed methods are given in the table. Subject invention A method of enrichment of kaolin on the author. St. 35 No. 235591, characterized in that, with a price, the quality of cleaning is improved; : from coloring impurities, substances that enhance the magnetic susceptibility of flocculated 40 removable impurities, for example, manganese compounds, finely divided magnesium, are introduced into the kaolin i suspension. TIT, 2. A pop method, 1, characterized in that the manganese compounds are in the form of a / 5-1O% water magnetic emulsion. soap containing mineral soap, tall oil and manganese sulfate in co-j é 5: Q, 5: O, 3.i 3. Method pop. 1, characterized in that finely ground magnetite is treated with mineral oil before introduction and stabilized in a 50% kaolin suspension.