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Modified gelatin dust suppressant and preparation method thereof

A technology of dust suppressant and gelatin, which is applied in the field of new dust suppressant and its preparation, can solve the problems of difficult plant growth, soil pollution, soil compaction, etc., and achieve the effect of suppressing flying dust and suppressing dust

Inactive Publication Date: 2010-01-06
SHENYANG JIANZHU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, many polymer material particles are hydrophobic and difficult to be compatible with water, and their pollution is often open and random. In many cases, particle pollution control is very difficult
Moreover, due to the high cost of this type of material, its application is greatly restricted: on the other hand, it is found in specific use that due to the high water absorption rate of this type of material, the soil will be compacted, causing difficulties in plant growth; cause soil salinization
Some polymer water-absorbing materials can also cause soil pollution because they are not degradable

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0021] Example 1: For places such as parks or courtyards with few motor vehicles, and muddy roads.

[0022] A kind of dust suppressant is prepared by the following reaction conditions by the following raw material components in weight percent:

[0023] Industrial gelatin: 2%-10%;

[0024] Water: 60-99%;

[0025] Inorganic acid: 2%-10%;

[0026] Cross-linking agent: 0%-10%.

[0027] Add tap water to the constant temperature water bath in advance at room temperature, raise the temperature to 40°C, then add 0.2kg of water, 0.01kg of gelatin, 0.74kg of acid, and nitric acid into the three-necked bottle respectively, stir until completely dissolved and mixed evenly, and degrade at a constant temperature of 40°C for 8 hours , and then removed, cooled to room temperature and neutralized to neutral with sodium hydroxide. The viscosity of the prepared dust suppressant solution is about 1mp a .s, pH 7.3. Formaldehyde can also be added appropriately according to different water ret...

example 2

[0030] Example 2: For highways and streets with many motor vehicles.

[0031] A kind of dust suppressant is prepared by the following reaction conditions by the following raw material components in weight percent:

[0032] Industrial gelatin: 2%-10%;

[0033] Water: 60-99%;

[0034] Inorganic acid: 2%-10%;

[0035] Surfactant: 0%-10%;

[0036] Cross-linking agent: 0%-10%.

[0037] Take 200ml of 1mol\L hydrochloric acid solution and 10kg of gelatin just prepared. Stir until completely dissolved and mixed evenly, degrade at a constant temperature of 40°C for 8 hours, then remove, cool to room temperature and titrate with sodium hydroxide to neutralize. The viscosity of the prepared dust suppressant solution is about 1mp a .s, pH 7.2.

[0038] Because the oil content and electrostatic properties of the dust in different areas are very different from those in ordinary parks and gardens, the dust suppressant can be simply modified to meet different needs. Take the dust for ...

Embodiment 3

[0039] Implementation example 3: for urban civil engineering, stockyards, and mining projects.

[0040] A kind of dust suppressant is prepared by the following reaction conditions by the following raw material components in weight percent:

[0041] Water: 60-99%;

[0042] Inorganic acid: 2%-10%;

[0043] Sodium hydroxide: 0.01%-5%;

[0044] Emulsifier: 0-5%.

[0045] Because these places are easy to raise dust, and the exposed surface has a greater requirement for the consolidation effect of the dust suppressant, the following dust suppressant can be configured:

[0046] Take 200ml of 1mol\L nitric acid solution and 0.01kg of gelatin and stir until completely dissolved and mixed evenly, degrade at a constant temperature of 40°C for 9 hours, then remove, cool to room temperature and titrate with sodium hydroxide to neutralize. Add 0.002 kg of sorbic acid fatty acid esters as required, or biodegradable emulsifiers such as phospholipids and glycolipids, to increase the film-f...

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Abstract

A modified gelatin dust suppressant and a preparation method thereof relate to a dust suppressant and a preparation method thereof; the dust suppressant comprises the following raw materials by weight percent: 2%-10% of industrial gelatin, 60-99% of water, 2%-10% of inorganic acid, 0-10% of surfactant, 0-10% of crosslinking agent, 0.01%-5% of sodium hydroxide and 0-5% of emulsifier. The preparation method comprises the following steps: adopting inorganic acid to degrade industrial gelatin at 20-80 DEG C for 2-15h, then using sodium hydroxide to neutralize the product and obtaining the finished product. According to different dust compositions and properties in different places, the degraded gelatin is used for wetting and penetrating tests and surfactant is added to increase the wetting and penetrating effect to different dusts. The dust suppressant of the invention is applicable to road surfaces, parks, construction site, scattered stock ground, mineral fields, coal dumps, ports and other operational areas which are easy to generate dust; after being dissolved in water and sprayed out, the dust suppressant can increase the coagulation of dust and inhibit the dispersion and movement of dust particles.

Description

technical field [0001] The invention relates to a dust suppressant and a preparation method thereof, in particular to a novel dust suppressant with both water retention and consolidation and a preparation method thereof. Background technique [0002] Dust pollution is an important factor affecting the urban environment, and fine dust-respirable particulate matter has become the primary pollutant in many countries, especially in large cities. People have been working on the prevention and control technology of dust pollution. Among the existing dust control technologies, one of the most novel and effective methods is chemical dust suppression, which has been highly valued since it appeared in the 1960s. In recent decades, its scope of application has been further broadened. The promotion of chemical dust suppression methods is closely related to the rapid development of surfactants and polymer functional materials. There are many polymer materials used to improve environmen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/22
Inventor 许峰马健岩李艳花谷亚新孙小巍礼航
Owner SHENYANG JIANZHU UNIVERSITY
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