Its predecessor, which treated sodium chloride with sulfuric acid to produce sodium sulfate, which was heated with limestone and coal, was pioneered by the French chemist Nicolas Leblanc in 1890, some 70 years before its development.
To have an efficient operation, it requires that the loss of ammonia be no more than one-tenth of one percent of the weight of the end product. The resultant ammonia, which is obtained along with calcium chloride, can be reused when the first step is repeated. The calcium chloride, however, is a waste product and is usually discarded. Its predecessor, which treated sodium chloride with sulfuric acid to produce sodium sulfate, which was heated with limestone and coal, was pioneered by the French chemist Nicolas Leblanc in 1890, some 70 years before its development. FTP, name this industrial process that obtains sodium chloride from treating sodium chloride with ammonia and carbon dioxide, the brainchild of a Belgian engineer.
To have an efficient operation, it requires that the loss of ammonia be no more than one-tenth of one percent of the weight of the end product.
{Solvay} process (also acceptable: ammonia-soda process)