SU763437A1 - Agent for preventing dust formation - Google Patents

Description

The invention relates to a composition for preventing the formation of dust and can be used in the coal and mining industry. The compositions 13 and for preventing the formation of dust containing secondary alkyl sulfates, as well as a foaming agent based on wetting agent DB with the addition of polyacryl and inorganic salts, are known. However, these compounds do not have good foaming and wetting properties. In addition, the composition 3 is known to prevent the formation of dust, containing a surfactant, which is used as sodium salts of the oil of alkyl alkyparylsulfonic acid, bone glue, ethyl alcohol and water in the following ratio of components, wt.%: Surface-active substance (sodium salts of alkyl alkylarylsulfonic acids) 37.0 Bone glue4,5 Ethyl alcohol10.0 WaterOther, However, the known composition does not have good foaming and wetting ability, high foam stability when interacting with dust, therefore, dust suppression efficiency is low. In order to increase wetting and foaming capacity, the dust suppressant contains as a surfactant Cio-Cj3 primary alkyl sulfates and ethoxylated alcohols or cytri alkyl sulfates and additionally sodium hexametaphosphate and glycerin in the following ratio of components, wt%: sodium alkylsulfonate 2-10 Glycerol 3-10 sodium hexametaphosphate 1-6 Water. Others When using primary alkylsulants as surfactants Fatov Hsiu-Cj3 and ethoxylated alcohols

The dust suppressant contains components in the following ratio, wt%: Primary alkyl sulfates 10-28

Ethoxylated alcohols 2,0-7,0

Glycerin 3-8

Sodium Hexametaphosphate 1.0-5.0

WaterReal

In the case of using primary alkyl sulfate C | o-Ci3 and sodium alkyl sulfonate as a surfactant, the dust suppressant contains components in the following ratio, wt.%: Primary alkyl sulfates 10-30

Sodium alkyl sulfonate 2.0-10

Sodium hexametaphosphate .1.0-6.0

Glycerin 3,0- 10

WaterEverything

The proposed means for preventing dust has a high wetting ability (12-22 s) with high foaming properties (foam multiplicity 500-700), exceeds the known means and

satisfies coal industry requirements. The sum of these properties provides a means of high dust suppression in mines.

Below are two of the composition of the proposed funds, wt.%:

Primary alkyl sulfates С, о-С, з10 30 Sodium alkylsulfonate 2 10 Glycerin 3 10 Sodium hexametaphosphate 1 6 Water 84 44 The table shows the results of tests of these compositions in comparison with a well-known tool.

Means receive prost1m mixing the components for 10-15 minutes at 40-50 ° C.

The components are introduced in the following sequence: water, glycerin, hexametaphosphate, sodium, sodium alkyl sulfonates, - alkyl sulfate

Foaming ability (foam multiplicity)

500

Foam stability when interacting with dust (р% destroyed foam) 39

Claims (3)

Invention Formula To means for preventing the formation of dust, including a surfactant and water, characterized in that, in order to increase the ticking of wetting and foaming ability, it contains as a surfactant primary Cjo-Cja alkyl sulphates and oxygenated alcohols or sodium alkyl sulphonate and Additionally, sodium hexametaphosphate and glycerin in the following ratio of components, wt.%: Primary alkyl sulfates 10-30 Ethoxylated alcohols or sodium alkyl sulfonate 2.0-10 Glycerin 3,0-10 800 50-500 No more than 40 thirty Sodium Hexametaphosphate 51.0-6.0 WaterEverything 2. Means for preventing the formation of dust according to claim 1, characterized in that it contains primary alkyl sulfates Cio-Ci3H ethoxylated alcohols as a surfactant in the following ratio of components, wt.%: Primary alkyl sulfates 10-28 Ethoxylated alcohols 2,0-7,0 Glycerol. .3.0-8.0 Sodium Hexametaphosphate 1.0-5.0 WaterEverything 3. Dust Prevention Tool A claim according to claim 1, characterized in that, as a surfactant, it contains Ciu - primary alkyl sulfates. 57634376 C, C and alkylsulfone t sodium with the following 1. USSR Author's Certificate P 323428, according to the components, wt.%: Cl. From 09 to 1/00, 03/20/70. Primary alkyl sulfates 10-30 Alkylsulfonate sodium 2.0-102. Zhuravlev and others. New ways to fight Sodium hexametaphosphate 1.0-6.05 dust in coal mines. M., Nedra, Glycerol 3.0-101975. WaterEverything Sources of information, 3. USSR author's certificate N 156409, taken into account during examination. B 01 D 37/00, 07.03.62 (prototype).