Dust control formulations
First Claim
Patent Images
1. 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 colloidally-protected wax-based (CPWB) microstructures; and
(II) applying said dust control formulation to said surface of said bulk material in an amount effective for dust control,wherein said CPWB microstructure comprises;
(A) a wax core,wherein said wax core comprises a paraffin component and a non-paraffin component,wherein said paraffin component comprises at least one linear alkane wax defined by the general formula CnH2n+2, where n ranges from 13-80,wherein said non-paraffin component comprises at least one wax selected from the group consisting of animal-based wax, plant-based wax, mineral wax, synthetic wax, a wax containing organic acids and/or esters, anhydrides, an emulsifier containing a mixture of organic acids and/or esters, and combinations thereof; and
(B) a polymeric shell,wherein said polymeric shell comprises at least one polymer selected from poly-vinyl alcohol, polyvinyl alcohol copolymers, polyvinyl alcohol terpolymers, polyvinyl acetate, polyvinyl acetate copolymers, polyvinyl acetate terpolymers, cellulose ethers, polyethylene oxide, polyethyleneimines, polyvinylpyrrolidone, polyvinylpyrrolidone copolymers, polyethylene glycol, polyacrylamides and poly (N-isopropylamides), pullulan, sodium alginate, gelatin, starches, and combinations thereof.
0 Assignments
0 Petitions
Accused Products
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 wax-based emulsion formulations that accomplish dust control during industrial operations in which dust handling is required.
-
Citations
16 Claims
-
1. 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 colloidally-protected wax-based (CPWB) microstructures; and (II) applying said dust control formulation to said surface of said bulk material in an amount effective for dust control, wherein said CPWB microstructure comprises; (A) a wax core, wherein said wax core comprises a paraffin component and a non-paraffin component, wherein said paraffin component comprises at least one linear alkane wax defined by the general formula CnH2n+2, where n ranges from 13-80, wherein said non-paraffin component comprises at least one wax selected from the group consisting of animal-based wax, plant-based wax, mineral wax, synthetic wax, a wax containing organic acids and/or esters, anhydrides, an emulsifier containing a mixture of organic acids and/or esters, and combinations thereof; and (B) a polymeric shell, wherein said polymeric shell comprises at least one polymer selected from poly-vinyl alcohol, polyvinyl alcohol copolymers, polyvinyl alcohol terpolymers, polyvinyl acetate, polyvinyl acetate copolymers, polyvinyl acetate terpolymers, cellulose ethers, polyethylene oxide, polyethyleneimines, polyvinylpyrrolidone, polyvinylpyrrolidone copolymers, polyethylene glycol, polyacrylamides and poly (N-isopropylamides), pullulan, sodium alginate, gelatin, starches, and combinations thereof. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
-
Specification