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Number of patents: 1
Last date: May 08, 2001

Number	Title	Issue Date
6228335	Process for the production of sodium carbonate crystals A process for the production of soda ash by withdrawing an aqueous mining solution containing dissolved sodium carbonate and at least about 1 wt % sodium bicarbonate from an underground alkali source; stripping CO2 gas from the withdrawn aqueou...	05/08/2001