1. The soda ash industry began at the end of the 18th century. With the need of industry and the change of raw materials for soda production, the production technology of soda ash (Na2CO3) has developed rapidly, and the production equipment tends to be large-scale, mechanized and automated.
2. In 1983, the world output of soda ash was about 30Mt.
3. In the history of soda ash industry, French N. Lubran, Belgian E. Solvay, Chinese Hou Debang, etc. have made outstanding contributions.
