C - Chemistry – Metallurgy – 01 – F
Patent
C - Chemistry, Metallurgy
01
F
C01F 11/46 (2006.01) C01B 17/50 (2006.01) C04B 11/26 (2006.01)
Patent
CA 2158881
A continuous process is provided for producing sulphur dioxide and alpha calcium sulphate hemi-hydrate from calcium sulphite usually produced in a waste material from flue gas desulphurization consisting of treating the calcium sulphite directly to alpha calcium sulphate hemi-hydrate using a range of temperatures from 77°C to 125°C, a range of acidity of 10 percent to 35 percent sulphuric acid and a time of 5 to 120 minutes. The optimum results being achieved when the conditions utilize a temperature that is about 80°C, sulphuric acid content is about 35 percent, and time required is about 60 minutes.
Hummel Richard Line
Kirk Donald Wilfred
Robinson Murry C.
Gowling Lafleur Henderson Llp
Materials-Concepts-Research Limited
LandOfFree
Method for treating fgd waste to produce alpha plaster and... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for treating fgd waste to produce alpha plaster and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for treating fgd waste to produce alpha plaster and... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1769381