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US 10,562,782 B2Granted
Method for removing nitriles from hydrogen cyanide
AssigneeThe Chemours Company Fc, LLC
InventorsWilliam David Parten, Randall O. Dixon, Monique Bowford, Gary R. Maxwell, Steven Lamar Grise
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Abstract
Process for making purified hydrogen cyanide. The process includes feeding a reaction product including HCN, water, and organonitriles to a separation vessel; taking a liquid slip stream of HCN, water and organonitriles from the separation vessel; and feeding the liquid slipstream into a sidestream stripper to purge nitriles from the HCN reaction product.
Claims10
A method for making purified HCN comprising the steps of:
- feeding a reaction product comprising water, HCN, and organonitriles to a separation vessel;
- taking a liquid slipstream of the reaction product from the separation vessel and feeding the liquid slipstream into a sidestream stripper;
- providing sufficient heat to the sidestream stripper to effect the separation of the HCN from the organonitriles and water;
- purging the organonitriles from the sidestream stripper;
- returning the HCN to at least one of the separation vessel and purification equipment;
- and recovering the purified HCN.
3 more elements
Dependencies are inferred from the claim text.