E.i. Dupont De Nemours and Company

The Chemours Company Fc, LLC

Steven Lamar Grise

William David Parten

Benny E Blackwell

Luis Alberto Chu

Wayne B Ely

James David Allison

Brent Ellsworth Basham

Gary Robert Maxwell

Zeru Berhane Tekie

Monroe Davis

Randall O Dixon

Robert Joseph Flowers

Monique Bowford

Brent E Basham

Gary R Maxwell

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.

Method for removing nitriles from hydrogen cyanide

A process for the production of sodium cyanide crystals comprising;

Sodium cyanide process

The present invention provides a process for removing ammonia as an aqueous salt solution from an acid gas comprising ammonia and hydrogen sulfide. A strong acid, such as sulfuric acid, is used as a scrubbing agent to convert ammonia to an ammonium salt. Control of pH and stripping in combination with reboiler or evaporators reduces hydrogen sulfide concentration. The ammonium salt is produced as an aqueous solution, which may crystallized to form a solid product. The ammonium salt solution or solid may be used as a fertilizer.

Process for scrubbing ammonia from acid gases comprising ammonia and hydrogen sulfide

Growing community of inventors

Landenberg, PA, United States of America

Steven Lamar Grise