Method of suppressing dust generation, soil stabilizing composition, and spray device including soil stabilizing composition

Patent metadata

Field	Value
Publication number	US-11624028-B2
Application number	US-201917253595-A
Country	US
Kind code	B2
Filing date	Aug 30, 2019
Priority date	Aug 31, 2018
Publication date	Apr 11, 2023
Grant date	Apr 11, 2023

Abstract

Provided are a method of suppressing dust generation, a soil stabilizer composition including a salt of lysine and citric acid; and a solvent, and a spraying device including the same. The method of suppressing dust generation, the method comprising: preparing a soil stabilizer composition comprising a salt of lysine and citric acid; and a solvent; and spraying the soil stabilizer composition on soil.

First claim

What is claimed is:

1. A method of suppressing dust generation, the method comprising:
preparing a soil stabilizer composition comprising a salt of lysine and citric acid, a solvent, and at least one of a thickener, a stabilizer, or a tackifier, wherein the salt of lysine and citric acid does not form a precipitate, and a mixed mol ratio of lysine and citric acid is from 1.5:1 to 1:3; and
spraying the soil stabilizer composition on soil.

2. The method of claim 1 , which further comprises controlling an amount of solid content in the soil stabilizer composition, based on 100 parts by weight of the soil stabilizer composition, from about 0.1 parts by weight to about 70 parts by weight.

3. The method of claim 1 , wherein the spraying of the soil stabilizer composition on soil is from 0.1 L/m 2 to 5 L/m 2 .

4. The method of claim 1 , wherein the preparing of the soil stabilizer composition comprises
preparing a mixture by mixing the lysine, the citric acid, the solvent, and at least one of a thickener, a stabilizer, or a tackifier; and
stirring the mixture at a temperature of 80° C. or less.

5. A soil stabilizer composition comprising a salt of lysine and citric acid, a solvent, and at least one of a thickener, a stabilizer, or a tackifier, wherein the salt of lysine and citric acid does not form a precipitate, and a mixed mol ratio of lysine and citric acid is from 1.5:1 to 1:3.

6. The soil stabilizer composition of claim 5 , wherein the solvent is an aqueous solvent, and the aqueous solvent optionally comprises alcohol.

7. The soil stabilizer composition of claim 5 , wherein an amount of a solid content in the soil stabilizer composition is, based on 100 parts by weight of the soil stabilizer composition, from about 0.1 parts by weight to about 70 parts by weight.

8. The soil stabilizer composition of claim 2 , wherein the viscosity of the soil stabilizer composition is from about 1.0 mPa·s to about 50000 mPa·s at a temperature of 25° C.

9. The soil stabilizer composition of claim 5 , wherein an initial tack of the soil stabilizer composition is from about 0.1 mJ to about 20 mJ at a temperature of 25° C.

10. The soil stabilizer composition of claim 5 , wherein a relative efficiency of water-holding capacity represented by Equation 4 of the soil stabilizer composition is about 1% to about 300%:
relative efficiency of water-holding capacity (%)=[1−(moisture decrease ratio of the soil after spraying of composition/moisture decrease ratio of the soil after spraying of water)]×100,  [Equation 4]

wherein the moisture decrease ratio of the soil after spraying of composition is defined by Equation 5:
moisture decrease ratio of the soil after spraying of composition=[(weight of mixed soil immediately after spraying of composition−weight of the sprayed, mixed soil after 24 hours at a temperature of 25° C.±1° C. and a relative humidity of 20%±5%)/weight of mixed soil immediately after spraying of composition]×100  [Equation 5]

and the moisture decrease ratio of the soil after spraying of water is defined by the following equation:
moisture decrease ratio of the soil after spraying of water=[(weight of mixed soil immediately after spraying of water−weight of the sprayed mixed soil after 24 hours at a temperature of 25° C.±1° C. and a relative humidity of 20%±5%)/weight of mixed soil immediately after spraying of water]×100.

11. The soil stabilizer composition of claim 5 , wherein, based on 100 parts by weight of the soil stabilizer composition, an amount of solid content of the salt of lysine and citric acid is 0.1 parts by weight or more.

12. A spraying device comprising the soil stabilizer composition of claim 5 .

Assignees

• Cj Cheiljedang Corp

Inventors

• Na Kyung Su
• Lee Eun Hye
• Yang Young Lyeol

Classifications

• C09K3/22 Primary

  for dust-laying or dust-absorbing · CPC title

• C09K17/14 Primary

  containing organic compounds only · CPC title