Purification of hydrochloric acid produced as a byproduct of...

Details Purification of hydrochloric acid produced as a byproduct of... Purification of hydrochloric acid produced as a byproduct of...

C - Chemistry, Metallurgy

01

B

C01B 7/07 (2006.01) C07C 303/16 (2006.01) C07C 303/44 (2006.01) C07C 309/04 (2006.01) C07C 309/80 (2006.01)

Patent

CA 2242722

Pour éliminer le chlorure de méthanesulfonyle entraîné par l'HCl gazeux sous-produit, on injecte dans le flux gazeux d'HCl une quantité d'eau allant de 0,01 à 20% par rapport à la masse d'HCl à traiter et on abaisse la température à une valeur inférieure ou égale à 15°C. Ce procédé permet de réduire le plus possible la teneur en CMS dans l'HCl gazeux, sans nécessiter la mise en oeuvre de température extrêmement basses ou le recours à des technologies très sophistiquées et coûteuses.

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