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Preparation method of chemical sand fixing agent

A sand-fixing agent and chemical technology, applied in the field of chemical sand-fixing agent preparation, can solve the problems of high labor consumption, slow construction, low efficiency, etc., and achieve the effects of reducing pollution, reducing process production time, and reducing costs.

Inactive Publication Date: 2018-01-12
NANTONG ITALMATCH CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these sand fixation methods have problems such as large manpower consumption, slow construction, high cost, and low benefit, so that they cannot be widely promoted and implemented.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A preparation method of chemical sand-fixing agent, the preparation steps are as follows:

[0017] (1) Dissolve polyvinyl alcohol powder in water, heat to 80°C, keep for 20 minutes, and prepare 10wt% polyvinyl alcohol;

[0018] (2) Dissolve 10g of polyacrylamide in 110g of warm water at 30°C, add it to the above mixture, control the titration rate, keep the temperature at 65°C, and keep stirring for 25 minutes;

[0019] (3) Dissolve 2g of nano-scale calcium carbonate solid in 90g of water, slowly add to step (2), control the titration speed, keep the temperature at 65°C, and stir for 20 minutes;

[0020] (4) Add 5g of sodium tetraborate directly into the above mixture, keep the temperature at 70°C, and stir for 20 minutes;

[0021] (5) Stop heating, continue to stir for 15 minutes, and cool down to room temperature to obtain milky white filament emulsion.

[0022] The stirring speed in steps (2) and (3) is maintained at 350 rpm, and the temperature is maintained at 65...

Embodiment 2

[0024] A preparation method of chemical sand-fixing agent, the preparation steps are as follows:

[0025] (1) Dissolve polyvinyl alcohol powder in water, heat to 100°C, keep for 30 minutes, and prepare 15wt% polyvinyl alcohol;

[0026] (2) Dissolve 20g of polyacrylamide in 120g of warm water at 45°C, add it to the above mixture, control the titration speed, keep the temperature at 80°C, and continue stirring for 30 minutes;

[0027] (3) Dissolve 4g of nano-scale calcium carbonate solid in 97g of water, slowly add to step (2), control the titration speed, keep the temperature at 80°C, and stir for 25 minutes;

[0028] (4) Add 10g of sodium tetraborate directly into the above mixture, keep the temperature at 80°C, and stir for 30 minutes;

[0029] (5) Stop heating, continue to stir for 20 minutes, and cool down to room temperature to obtain a milky white filament emulsion.

[0030] The stirring speed in steps (2) and (3) is maintained at 550 rpm, and the temperature is maintai...

Embodiment 3

[0032] A preparation method of chemical sand-fixing agent, the preparation steps are as follows:

[0033] (1) Dissolve polyvinyl alcohol powder in water, heat to 90°C, keep for 25 minutes, and prepare 13wt% polyvinyl alcohol;

[0034] (2) Dissolve 15g of polyacrylamide in 115g of warm water at 37°C, add it to the above mixture, control the titration speed, keep the temperature at 74°C, and keep stirring for 27 minutes;

[0035] (3) Dissolve 3g of nano-scale calcium carbonate solid in 94g of water, slowly add to step (2), control the titration speed, keep the temperature at 73°C, and stir for 23 minutes;

[0036] (4) Add 7g of sodium tetraborate directly into the above mixture, keep the temperature at 75°C, and stir for 25 minutes;

[0037] (5) Stop heating, continue to stir for 17 minutes, and cool down to room temperature to obtain milky white filament emulsion.

[0038] The stirring speed in steps (2) and (3) is maintained at 450 rpm, and the temperature is maintained at 7...

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PUM

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Abstract

The invention discloses a preparation method of a chemical sand fixing agent. The preparation method comprises the following steps: dissolving polyvinyl alcohol powder in water, heating to the temperature of 90 DEG C, keeping for 25min, and preparing into polyvinyl alcohol of which the concentration is 13 wt%; then dissolving 15g of polyacrylamide in 115g of warm water at the temperature of 37 DEGC, adding to a mixed solution, controlling the titration speed, keeping constant temperature at 74 DEG C, and stirring continuously for 27min; taking 3g of nanometer calcium carbonate solids to be dissolved in 94g of water, slowly adding to the step (2), controlling the titration speed, keeping constant temperature at 73 DEG C, and stirring for 23min; taking 7g of sodium tetraborate to be directly added to the mixed solution, keeping constant temperature at 75 DEG C, and stirring for 25min; stopping heating, continuously stirring for 17min, cooling to room temperature, and then obtaining milky white emulsion from which filaments can be pulled out. The preparation method of the chemical sand fixing agent disclosed by the invention has the advantages that sand grains are coated with formednet-shaped coating films, so that sand crusts are not easy to break, have toughness and water seepage, and are not destroyed while meeting water, furthermore, the process manufacturing time is shortened, the cost is lowered and environmental pollution caused by the chemical sand fixing agent is reduced.

Description

Technical field [0001] The invention belongs to the technical field of chemical material preparation, and specifically relates to a preparation method of a chemical sand-fixing agent. Background technique [0002] Since 1949, Chinese researchers have developed more than 100 desertification control technologies and prevention models through continuous exploration, represented by more mature engineering sand fixation and biological sand fixation. However, these sand fixation methods have problems such as high labor consumption, slow construction, high cost, and low efficiency, making them unable to be widely promoted and implemented. Chemical sand fixation technology and new chemical sand fixation materials have attracted increasing attention in the sand fixation market because of their low cost, convenience, speed and high efficiency. Research and experiments on chemical sand fixation occurred in my country in the 1960s, and achieved certain results. [0003] Foreign resear...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K17/40C09K105/00
Inventor 胡剑锋
Owner NANTONG ITALMATCH CHEM
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