Back to results
US 4,536,186 AGranted
Use of poly (DMDAAC) as coal fine slurry viscosity reducer
AssigneeCalgon Corporation
InventorPaul A. Rey
Life of this patent
Estimating the term…
Abstract
The instant invention is directed to a method of reducing the viscosity of an aqueous coal fine slurry which comprises adding poly (dimethyl diallyl ammonium chloride) to the slurry.
Claims2
A method of reducing the viscosity of a 40%-60% coal fine/40-60% water slurry which comprises adding 1 to 10 lbs per ton of dry coal of poly(dimethyl diallyl ammonium chloride) to the slurry, wherein said coal fine slurry has been treated so as to substantially remove clay and impurities prior to addition of said poly(dimethyl diallyl ammonium chloride).
Dependencies are inferred from the claim text.