SU1133283A1 - Foaming agent for dust suppression - Google Patents

Abstract

FOAMER FOR DUSTING, inclusions of sodium alkylsulfo, a surfactant and mineral sodium salts, characterized in that, in order to increase the wetting ability and to obtain a frother, in a solid salable form, as a surfactant, it contains mono ester salt and a mixture of ethofluorophenyl ether. acids based on the primary alcohols of С {о-C | g fractions, oxyethylated with 3-6 moles of ethylene oxide, and sodium tripolyphosphate and sodium sulfate as mineral sodium salts next in (I eat the ratio of components, wt.X: Dictate salts of the sulfonic acid monoester. acid based on the primary alcohols of the Cp – C fraction, oxyethite. 3–6 mol of ethylene oxide 16–32 Tripolyphos 50–65 fat sodium Sulfate 4–10 sodium Alkipsulfonate Rest rub

Description

1 The invention relates to foaming compositions for combating dust mainly in coal mines as well as in handling bulk materials, in crushing and screening workshops, in cement, coke-chemical production, etc. The foaming composition based on aqueous solutions of surface-active substances is known, for example on the alkylarylsulfonic acid trivium salt 1. The closest to the invention in its technical essence and the achieved result is a frother for the suppression of 2J, including sodium alkyl sulfonate, top active substance — primary alkyl sulfates of fraction C sodium salt — sodium hexametaphosphate, as well as glycerin and water in the following ratio of components, wt.%: sodium alkyl sulfonate 2–10 Primary alkyl sulfates 10–30 sodium hexametaphosphate 1–6 Glycerin 3–10 WaterOther Disadvantages known foaming agent are insufficient wetting ability when interacting with the drink, as well as liquid-to-vale form, which complicates its use, since it is necessary to have a large stock of special containers for storing Sports and large production areas during storage are complicated by its use at minus temperatures (especially in northern conditions) due to increased viscosity and solidification, possible stratification and even partial homolysis during long-term storage. The aim of the invention is to increase the wetting ability and obtain a frother in solid product form. This goal is achieved by the fact that a foaming agent for dust suppression, including sodium alkyl sulfonate, a surfactant and mineral sodium salts, as a surfactant it contains disodium 83 salts of monoether sulfonic succinic acid based on primary alcohols of the Cj fraction ..- C | g, hydroxyethyl alcohol 3-6 mol of ethylene oxide, and as the mineral sodium salts, sodium tripolyphosphate and sodium sulfate in the following ratio, wt.%: Disodium salts of monoether sulfonic acid slots based on primary alcohols of fraction S 8 ° ethylated with 3-6 moles of ethylene oxide 16-32 Sodium tripolyphosphate 50-65 Sodium sulfate 4-10 Sodium alkyl alkyl sulfonate Remaining Sulfuric acid monoether disodium salt (DNS-0) is obtained by etherifying maleic anhydride ethoxylated primary alcohols followed by sulfonation and neutralization of maleic acid monoesters with sodium sulfite. Primary alcohols of the C-- or CJA-CU fraction, ethoxylated respectively with brush or three moles of ethylene oxide, are preferably used. They are highly soluble in water, increase the foaming and wetting ability of the frother, are good plasticizers. The foaming agent is obtained by mixing the components in a screw mixer at 55. The components are introduced in the following sequence: sodium alkyl sulfonate, DNS-0, tripolyphosphate, and sodium sulfate. After cooling to 20-5 ° C., The mass obtained is subjected to molding. Example 1. To 200 g (30 wt.%) Disodium salts of monoesters of sulphate-succinic acid based on primary alcohols of the Cj-C | g fraction, ethoxylated with 6 mol mt of ethylene oxide, 50 g (7% by weight) of sodium alkyl sulfonate fraction C are added. .d- C, g (OST 6-01-35-79). The mixture is heated 3 to 55 - 5 ° C and 400 g (59% by weight) of sodium tripolyphosphate (GOST 13493-77) are added with stirring. After thorough mixing, 25 g (4 wt.%) Of sodium sulfate (GOST 195-77) are added to the mixture. The resulting mixture is subjected to molding by known methods. The effectiveness of the resulting composition for dust suppression is evaluated by the magnitude of the wetting ability and the rate of foam destruction of its solutions. The wetting ability is determined by the duration of the film flotation of 0-, 1 g of coal dust (particle size 74 µm) in 50 ml of a blowing agent solution of various concentrations (0.15j 0.3 and 0.6 wt.%). To determine the rate of destruction of foam with a multiplicity of 180 half a pound on a laboratory foam generator at a rate of formation of 15.8 ml / s. The test results are shown in the table. Example 2. Under the conditions of Example 1, 100 g (21 wt.%) Of the disodium salts of sulphontic acid monoesters are mixed based on primary alcohols of the fraction C., -, ethoxylated with 6 moles of ethylene oxide, 50 g (14 wt.%). .%) sodium alkyl sulfonate fraction Cjp-, 300 g (60 wt.% sodium tripolyphosphate and 25 g (5 nvc.%) sodium sulfate. The mixture is molded by known methods. Example 3. In the conditions of Example 1, 50 are mixed g (16 wt.%) disodium salts of sulfonic acid monoesters based on the primary alcohols of C.-C. fraction, hydroxy ethylated at 6 mol of ethyl oxide ena, 50 g (16 wt.%) of sodium alkylsulfonate fraction C, 200 g (63 wt.%) of sodium tripolyphosphate and 15 g (5 wt.%) of sodium sulfate. The mixture is subjected to molding with lime IPL4I methods ... 11 example 4. According to example t, 150 g (30 wt.%) of disodium salts of sulphontic acid monospheresis are mixed based on primary alcohols of the C | p-C "fraction, hydroxyethylnyl per 6 mol of ethylene oxide, 50 g {10 wt.%) sodium alkyl sulfonate fraction C, Q-C, g, 250 g j (50 wt.%) Sodium tripolyphosphate and 50 g (10 wt.%) Sodium sulfate. 34 The mixture is molded by known methods. Example 5. Under the conditions of Example 1, 200 g (32 wt.%) Disodium salts of sulphate-mono esters of monoesters are mixed based on primary alcohols of the fraction ethoxylated with 3 moles of ethylene oxide, 50 g (8 wt.%) Of sodium alkyl sulfonate fraction C. - C, D, 350 g (55% by weight) of sodium tripolyphosphate and 35 g (5.%) Of sodium sulfate. The mixture is subjected to molding by known methods. Example 6.1. In the conditions of Example 1, 100 g (22 wt.%) Of disodium salts, sulphatic acid monoesters based on primary alcohols of the C fraction, ethoxylated on 6 mol of ethylene oxide, 25 g (6.5 wt.%) Of alkyl sulfonate are mixed. sodium fraction C. ,, 300 g (65 wt.% sodium tripolyphosphate and 25 g (6.5 wt.%) sodium sulfate. Example7. In the conditions of example 1, 150 g (31 wt.%) of sodium monoesters are mixed sulfo-succinic acid based on primary alcohols of C, Q-C fraction, ethoxylated on 6 mol of ethylene oxide, 35 g (7 wt.%) of sodium alkyl sulfonate, Cjj fraction, 250 (52 wt.%) Sodium tripolyphosphate and 50 g (10 wt.%) Sodium sulfate. Example 8. The conditions in example 1 mix 20 g (10 wt.%) Disodium salts of monoesters of sulfonic acid based on primary alcohols fraction C, g, ethoxylated on 6 mol of ethylene oxide, 10 g (3 wt.%) of sodium alkyl sulphonate of the Cad-C fraction, 150 g (75 wt.%) of sodium tripolyphosphate and 20 g (10 wt.%) of sodium sulfate. in Example 1, 120 g (40) of disodium salts of sulfo-succinic acid monoesters are mixed based on primary alcohols of fraction C, d-, oxygenated to 6 moles of oxide e Tilene, 9 g (3 wt.%) of sodium alkyl sulfonate of fraction C ", 150 g (50 wt.%) of sodium tripolyphosphate and 21 g (7 May.%) of sodium sulfate. Under the conditions of Example 1, 80 g (40% by weight) of the disodium salts of sulfo-succinic acid monoesters are mixed based on primary

511332836

the alcohols of the C. fraction, the hydroxyethylity of air in the working area, improved by 6 mol of ethylene oxide, the working conditions of workers, and 56 g (18 wt.%) of alkyl sulfonate are also the same to eliminate difficulties,

Cjg-C fractions, 80 g (40 wt.%) of sodium foam tripolyphosphate and 4 g (2 wt.%) 5 body in a liquid commercial form,

sodium sulfate. —and complications of using foam

the use of the proposed foaming agent with a minus tempeovevatel will reduce the dust-free environment.

556 50.8

Avesta

0.15

0.3

0.6 10.2 120 30.1

0.15

0.3

0.6 98 21.8

0.15

0.3

0.6 154 30

0.15

0.3

0.6

63 21

0.15

0.3

0.6

74 25

0.15

0.3

0.6

110 25.6

0.15

0.3

0.6

Liquid

Hard

4.3

3.6

.

88

0.15

27 5

0.30, 6

560

0.15 123

0.3

36

0.6 610

0.15 180

0.3

57

0.6

45 16

0.15

0.3

to

0.6

Table continuation

Non-flowing paste

Claims (1)

; DUST FOAM FORMER · 'SUPPRESSION, including sodium alkyl sulfonate, surfactant and mineral sodium salts, characterized in that, in order to increase the wetting ability and obtain a foaming agent in solid commodity form, it contains disodium salts of sulfonosuccinic monoester as a surfactant acids based on primary alcohols of fractions C { ₀ - C | g, ethoxylated with 3-6 moles of ethylene oxide, and sodium tripolyphosphate and sodium sulfate as mineral sodium salts in the following total component ratio, May 2: Disodium salts of sulfonosuccinic acid monoester based on primary alcohols of fraction C _g - Cjg, oxyethonated with 3-6 moles of ethylene oxide Sodium tripolyphosphate Sodium sulfate Sodium alkene sulfonate 16-32 50-65 4-10