Wet calcination of alkali metal bicarbonates in hydrophobic media
Patent 4743439 Issued on May 10, 1988. Estimated Expiration Date: 
May 10, 2005. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
May 10, 2005. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2671713 3246962 3264057 3700280 3779601 Preparation of sodium carbonate anhydride Patent #: 4252781 InventorAssigneeApplicationNo. 06/571325 filed on 01/16/1984US Classes:423/421, Alkali metal containing (Li, Na, K, Rb, or Cs)23/302T, Sodium compounds423/206.2, Alkali carbonate from trona423/427By reacting a bicarbonateExaminersPrimary: Straub, Gary P.Attorney, Agent or FirmInternational ClassesC01D 7/00 (20060101)C01D 7/12 (20060101) AbstractA process for the wet calcination of sodium bicarbonate, sodium sesquicarbonate or mixtures thereof comprising forming a suspension of sodium bicarbonate, sodium sesquicarbonate or said mixture in a water-immiscible relative high boiling liquid, and heating the suspension to form sodium carbonate.Field of SearchCarbonatingUtilizing carbon dioxide as reactant Mixture contains metal chloride Alkali metal containing (Li, Na, K, Rb, or Cs) Hydrogen containing (bicarbonate) By carbonating ammoniated brine By reacting halogen containing compound By reacting halogen containing compound By reacting a bicarbonate |
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