C - Chemistry – Metallurgy – 10 – L
Patent
C - Chemistry, Metallurgy
10
L
260/1, 196/11
C10L 9/06 (2006.01) C08H 99/00 (2010.01) C08H 6/00 (2010.01) C07G 1/00 (2006.01)
Patent
CA 1330062
A B S T R A C T This invention relates to the production of a solid oxidised coal containing humic acids. Coal with a mean particle size of less than 3mm is slurried with water and then oxidised with oxygen or mixtures of oxygen and air at temperatures ranging from 100 to 300°C, at partial oxygen pressures ranging from 0,1 to 10 MPa and reaction periods ranging from 5 to 600 minutes. In the absence of catalysts, e.g. alkaline bases, the main product of oxidation is humic acids. These humic acids are not dissolved because the pH of this slurry is in the range 4 to 9. Small amounts of fulvic acids are formed and these are soluble in the water of the slurry. The coal-derived humic acids may for example find application as soil conditioners, organic fertilisers, briquette and pellet binders, drilling fluid dispersants and viscosity control agents, whilst the coal-derived fulvic acids may be utilised for the production of fuel extenders, plasticisers and petrochemicals.
571389
Fetherstonhaugh & Co.
Pfeinsmith Limited
LandOfFree
Process for the oxidation of fine coal does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for the oxidation of fine coal, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the oxidation of fine coal will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1194308