Composition for dust control

Patent metadata

Field	Value
Publication number	US-9353301-B2
Application number	US-201314089176-A
Country	US
Kind code	B2
Filing date	Nov 25, 2013
Priority date	Nov 25, 2013
Publication date	May 31, 2016
Grant date	May 31, 2016

Abstract

The invention is directed towards methods and compositions for preventing dusting problems in mineral supplement. The method involves treating the mineral supplement or a dust releasing material with a composition comprising polymerized organic acid.

First claim

What is claimed is:

1. A method of reducing the release of dust from a mass prone to release dust, the method comprising the step of:
contacting the mass with a composition comprising a polymerized organic acid which comprise alkoxy groups,

wherein the polymerized organic acid is a copolymer which comprises glycerol repeating units.

2. The method of claim 1 in which the polymerized organic acid is constructed from monomers selected from the list consisting of hydroxy fatty acids such as: ricinoleic acid, 12-hydroxystearic acid, and any combination thereof.

3. The method of claim 1 , the glycerol repeating units being one of: monoglycerols, diglycerols, triglycerols, and any combination thereof.

4. The method of claim 1 , the polymerized organic acid being a block copolymer comprising a first chain consisting essentially of repeating polymerized organic acid repeating units and a second chain consisting essentially of repeating glycerol units, the first chain and the second chain being linked by an ester bond.

5. The method of claim 4 in which the average number of repeating units is more than 2.

6. The method of claim 1 in which the polymerized organic acid is a block copolymer comprising a first chain consisting essentially of repeating ricinoleic acid repeating units and a second chain consisting essentially of repeating glycerol units, the first chain and the second chain being linked by an ester bond.

7. The method of claim 4 in which the first chain has an average number of repeating units of more than 100.

8. The method of claim 1 in which the alkoxy groups comprise ethoxy or propoxy groups.

9. The method of claim 1 in which the composition is applied as one or more selected from the list consisting of: foam, dispersion, emulsion, and any combination thereof.

10. The method of claim 1 in which the mass prone to release dust is an aggregation of mineral supplement, mined materials, synthesized dry materials, fertilizer, coal, wood chips, agricultural products, fruit, aggregates, fine materials, potash, phosphate, road dust, and any combination thereof.

11. The method of claim 1 in which after it has been treated, the mass prone to release dust will have a reduction in released dust that will persist indefinitely.

12. A method of reducing the release of dust from a mass prone to release dust, the method comprising the step of:
contacting the mass with a composition comprising a polymerized ricinoleic acid wherein the composition comprises glycerol repeating units and better dust control effects than a comparable amount of petroleum.

Assignees

• Ecolab Usa Inc

Inventors

• Hay Daniel N T
• Dimas Peter A

Classifications

• C05G3/20

  for preventing the fertilisers being reduced to powder; Anti-dusting additives · CPC title

• B01J2/30 Primary

  using agents to prevent the granules sticking together; Rendering particulate materials free flowing in general, e.g. making them hydrophobic · CPC title

• C09K3/22 Primary

  for dust-laying or dust-absorbing · CPC title

• C05B7/00

  Fertilisers based essentially on alkali or ammonium orthophosphates (C05B11/00 takes precedence) · CPC title

• C05G3/0088

  Chemistry & Metallurgy · mapped topic