Solvay
Solvay : (1) An important process for making sodium carbonate, invented by E. Solvay in Belgium in 1861 and still used worldwide. See: Ammonia-Soda. (2) A pulp-bleaching process using chlorine dioxide, generated by reducing sodium chlorate with methanol. In 1962, 20 paper mills in the United States were using this process. See also: Mathieson (1)