| PATENT ASSIGNEE'S COUNTRY | Canada |
| UPDATE | 11.99 |
| PATENT ASSIGNEE | This data is not available for free |
| PATENT CLAIMS |
Method of scrubbing S compds from gas contg S oxide - Providing source of Na sulfate soln - Contacting said source with CO2 & NH3 while maintaining soln at > 32C to form ppcc of NaHCO3 - Recovering as a prodt said ppcc of NaHCO3 - Filtering as a prodt said ppcc of NaHCO3 - Treating the remaining soln of third step with sufficient NH3 to form a saturated soln of ammonium sulfate & a ppcc of Na sulfate from said soln - Recovering as a prodt said ppcc of Na sulfate - Recovering ammonium sulfate as a prodt from the remai ning soln of sixth step - Washing residual Na sulfate out of said NaHCO3 ppcc - Converting said ppcc of NaHCO3 into Na2CO3 ppcc - Introducing dry Na carbonate into a conditioning vessel for removal of S oxide compd |
| PATENT PHOTOCOPY | Available on request |
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