Solvay process(redirected from Ammonia-Soda Process)
Also found in: Thesaurus, Encyclopedia.
A process used to produce large quantities of soda ash from sodium chloride, ammonia, and carbon dioxide.
[After Ernest Solvay.]
(Chemical Engineering) an industrial process for manufacturing sodium carbonate. Carbon dioxide is passed into a solution of sodium chloride saturated with ammonia. Sodium bicarbonate is precipitated and heated to form the carbonate
[C19: named after Ernest Solvay (1838–1922), Belgian chemist who invented a process using salt, limestone, and ammonia]