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A kind of preparation method of inverse emulsion dust suppressant

A technology of reverse emulsion and dust suppressant, which is applied in the field of preparation of reverse emulsion dust suppressant, can solve problems such as water and soil pollution, dust prevention, and easy reduction of dust suppression effect, and achieve low wind erosion rate, strong anti-loss performance, Conducive to the dust-proof effect

Active Publication Date: 2017-11-17
DONGYING BAOMO ENVIRONMENT ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The method of spraying chemical dust suppressants often causes water and soil pollution because the products contain substances that are not easy to degrade and are toxic to water and soil. Even the biodegradable ecological and non-toxic chemical dust suppressants are all water-soluble substances. In case of heavy rain, its dustproof and dust suppression effect will be easily reduced

Method used

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  • A kind of preparation method of inverse emulsion dust suppressant

Examples

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Comparison scheme
Effect test

Embodiment 1

[0026] A preparation method of an inverse emulsion dust suppressant, comprising the following steps:

[0027] 1) Add 700 parts of deionized water and 50 parts of pure acrylic acid (AA) to reactor 1, and adjust the pH to 6.5 with 35% sodium hydroxide. During this period, an ice-water bath is used to control the water temperature not to exceed 20° C. to obtain a water-phase monomer solution.

[0028] 2) Add 83.5 parts of 10# white oil to reactor 2, 20.5 parts of polyoxyethylene oleate and 41.5 parts of diethylene glycol monolaurate are compounded as emulsifier (the total amount of emulsifier accounts for the total weight of solvent 6.5%), dissolved into an oil phase. The oil phase solution and the water phase solution in step 1) were mixed, then circulated and homogenized by a high-shear force homogenizing pump, emulsified for 30 minutes, and a uniform and stable monomer emulsion with an oil-water ratio of 1:5.7 was obtained.

[0029] 3) The monomer emulsion is placed in the r...

Embodiment 2

[0032] A preparation method of an inverse emulsion dust suppressant, comprising the following steps:

[0033] 1) Add 700 parts of deionized water and 50 parts of pure acrylic acid (AA) to reactor 1, and adjust the pH to 6.65 with 35% sodium hydroxide. During this period, an ice-water bath is used to control the water temperature not to exceed 20° C. to obtain a water-phase monomer solution.

[0034] 2) Add 80 parts of 260# solvent naphtha in reactor 2, 23 parts of polyoxyethylene oleate and 25 parts of diethylene glycol monolaurate are compounded as emulsifier (the total amount of emulsifier accounts for the total weight of solvent 6%), dissolved into an oil phase. Mix the oil phase solution with the water phase solution in step 1) and circulate through a high-shear force homogenizing pump to homogenize and emulsify for 30 minutes to obtain a uniform and stable monomer emulsion with an oil-water ratio of 1:6.

[0035] 3) The monomer emulsion is placed in the reaction kettle ...

Embodiment 3

[0038] A preparation method of an inverse emulsion dust suppressant, comprising the following steps:

[0039] 1) Add 700 parts of deionized water and 50 parts of pure acrylic acid (AA) to reactor 1, and adjust the pH to 7 with 35% sodium hydroxide. During this period, an ice-water bath is used to control the water temperature not to exceed 20° C. to obtain a water-phase monomer solution.

[0040]2) Add 81 parts of 280# solvent naphtha in reactor 2, 24 parts of polyoxyethylene oleate and 29 parts of diethylene glycol monolaurate are compounded as emulsifier (the total amount of emulsifier accounts for the total weight of solvent 5.5%), dissolved into an oil phase. Mix the oil phase solution with the water phase solution in step 1), and then pass through a high-shear force homogenization pump to homogenize and emulsify for 30 minutes to obtain a uniform and stable monomer emulsion with an oil-water ratio of 1:6.2.

[0041] 3) The monomer emulsion is placed in the reaction kett...

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Abstract

The invention relates to a preparation method of inverse emulsion dust suppressant. By changing the oil-water ratio and searching excellent compound emulsifying agent and feeding initiator, the inverse emulsion dust suppressant with low solid content and excellent stability is synthesized. The inverse emulsion dust suppressant belongs to a straight-chain polymer and has very good ductility; after being sprayed, emulsion drops are attracted by dust particles, the surface tension of the emulsion drops is changed, the emulsion drops are broken, an oil film, a surfactant and sodium polyacrylate are still linked after the emulsion drops are broken and are rearranged; the oleophylic ends of the oil film are linked with dust to package the dust particles, are mutually linked to form a whole and form a layer of curing film together with the dust particles so as to inhibit the rising of dust. Meanwhile, covalent bonds are formed between carboxyl in sodium polyacrylate and water molecules to retain the water molecules, so that a moisturizing function is achieved, and the rising of dust is further inhibited.

Description

technical field [0001] The invention belongs to the field of dust suppressants, and in particular relates to a preparation method of an inverse emulsion dust suppressant. Background technique [0002] The hazards of dust pollution are very prominent in many industries. For example, there is a danger of explosion in mining enterprises due to excessive dust, and excessive dust in construction sites will cause environmental pollution. The ore materials such as iron ore and coal piled up in ports and wharfs contain a large amount of particulate matter. It is easy to raise dust when the air is flowing. In most cities in my country, inhalable particulate matter, that is, suspended particles with an aerodynamic equivalent diameter less than or equal to 10 microns, has become the main pollutant, which is directly related to urban dust. Therefore, it is urgent to control the dust. At present, the control of this kind of pollution mainly adopts methods such as windbreak wall, water ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F120/06C08F2/32C08F4/40C09K3/22
Inventor 赵守敬刘皓徐坤曹卫广向前
Owner DONGYING BAOMO ENVIRONMENT ENG CO LTD
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