SU716609A1 - Method of separating resinous substances from lyptobiolytic coal - Google Patents

Description

I

This invention relates to the enrichment of minerals.

Liptobiolithic coals are a unique raw material for plastics with high insulating SCs).

You used IB electrical industry.

A known method for producing resin concentrates from liptobiolite coals by centrifugal hydroseparadia in centrifuges and cyclone dusts, ij

However, the concentrates obtained by this method are of low quality. The losses of resin substances are large, since the difference between the densities of the resin fraction and coal is insignificant.

There is also known a method for producing tar substances from coal, which consists in crushing raw materials. a mill with the sifting of coal fines and separation in a centrifuge using heavy liquid 2.

The disadvantage of this method is the low yield of the concentrate, the pain

greater losses pitch fraksh. In addition, the use of heavy liquid increases the cost of the concentrate and / reduces its dielectric properties.

There is a known method of removing impurities (pyrite) from coal, which consists in treating crushed organic coal with colloid for coal depression and a collector and flotation of pyrite s.

However, this method is not efficient enough to extract resinous substances.

The purpose of the invention is to increase the technological indicators of the process of extraction of tar substances.

Claims (3)

This is achieved by the fact that in the method of extracting resinous substances from liquid biolithic coals, including the processing of ground flotation agents and flotation, the ground coal is treated successively with a mixture of potassium permanganate, dextrin and sklycpt and apolar reagent. The method is carried out as follows: Liptobiolitic coals are subjected to a two stage selective crushing and screening, jigging with release of oily tails. The jelly fractions are crushed to 1 mm, sifted out, the coal fraction is removed, and successively treated with a mixture of potassium permanganate, dextrin, and HatpHJa silicate and alol collector. Then the resin substances are floated. . Example.) The crushed coal is treated with a mixture of depressors with a ratio of potassium permanganate, extrusion on and sodium silicate 70: 2: 28 for 0.5-1 minutes. At the same time, the potential of the pulp regeneration potential is 58Q-7CO mV. Then a collector-sulphurized kerosene (1.5 kg / t) is added, agitated for 2 missions, a T-66 foamer (0.1 kg / t) is introduced, and resin substances are floated. As a result, resinous tieio fractions are obtained - x Centrate in the form of a product with a yield of raw material of 46.2%, with a plasticity of 49.8%, t 5g of the fraction is an intermediate product in the form of a measured product with a yield of 53.8% ash 26.2%. Using the proposed method of obtaining resin concentrates in comparison with known methods increases the yield of concentrate by 3.5 times, improves its Quality, improves dielectric properties. Qioco6 claims for extracting tar from iptbiolitic coals, including treating crushed raw materials with floterregants and flotation, distinguishing, and with, that, in order to improve process performance, crushed coal is successively treated with a mixture of KIIA permanganate, de E, sodium and sodium silicate. Collector .: Sources of information taken into account in the case of ezher-peise 1. Enrichment and briquetting yiv. LM, No. 5, 1967, p. 32-34. 2. USSR author's certificate fb 146487, cl. C 09 C 1/44, 1961. 3. Patent OUA N9 3807557, cl. 209-166, published. 1974.