C - Chemistry – Metallurgy – 01 – D
Patent
C - Chemistry, Metallurgy
01
D
23/100
C01D 5/00 (2006.01) C01B 7/09 (2006.01) C01D 3/06 (2006.01) C02F 1/00 (2006.01) C02F 5/02 (2006.01)
Patent
CA 1129174
ABSTRACT OF THE DISCLOSURE A continuous process for the recovery of chemicals in saline water including the steps of converting the sulfates in the saline water feed to sodium sulfate; separating and recovering in the oxide forms essentially all of the magnesium and calcium from the saline water feed; then preparing a sodium chloride fortified solution by mixing the feed with recycled sodium chloride; crystallizing and re-crystallizing and then separating sodium chloride crystals, preferably in two evaporative crystallization processes; stripping bromine from the sodium chloride depleted solution; crystallizing and then separating sodium chloride and sodium sulfate crystals from each other and then from solution; recycling the separated sodium chloride to the first sodium chloride crystallization step; separating residual sulfates from the solution; crystallizing and then separating sodium chloride crystals; recycling the separated sodium chloride to the first sodium chloride crystallization step; crystallizing and then separating potassium chloride from the solution; and recycling the resulting solution to the last sodium chloride crystallization step. Substantial quantities of potable water are produced by the process. In a preferred embodiment, sodium chloride is electrolytically converted to sodium hydroxide, chlorine and hydrogen. Part of the sodium hydroxide is used in the process, the remainder is concen- trated and flaked. Part of the chlorine is liquified, the remainder is combined with a portion of the hydrogen to form hydrochloric acid. Finally, the steam boiler flue gas may be combined with sodium hydroxide to produce the sodium carbonate used in the process.
314576
Ecodyne Corporation
Meredith & Finlayson
LandOfFree
Process for recovery of chemicals from saline water 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 recovery of chemicals from saline water, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for recovery of chemicals from saline water will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-303040