Back to results
US 10,767,129 B2Granted
Asphalt-based dust control formulations
AssigneeHenry Company, LLC
InventorsAmba Ayambem, Daniel B. Kent, John C. Dobson
Life of this patent
Estimating the term…
Abstract
This disclosure describes formulations and methods for dust control, for example, coal topping, a term which refers to the application of liquid products to the top of coal loads, such as those in open topped coal hopper railcars as commonly used today to transport coal. Disclosed herein are asphalt-based emulsion formulations that accomplish dust control during industrial operations in which dust handling is required.
Claims20
A method for controlling dust on a surface of a bulk material, comprising:
- (I) preparing a dust control formulation (DCF) comprising a dust reduction additive (DRA) emulsion comprising:
- (i) asphalt,
- (ii) at least one first defoamer, and
- (iii) at least one emulsifier,
- wherein said at least one emulsifier is a low-fatty acid emulsifier comprising:
- (a) water,
- (b) a fatty acid solution,
- (c) a base, and
- (d) a stabilizer and
- (II) applying said dust control formulation to said surface of said bulk material in an amount effective for dust control.
7 more elements
Dependencies are inferred from the claim text.