The total soda recovery can be raised and separate production of rock salt and soda can be achieved, which makes easy the later processing of the recovered solution.

The Mo recovery process was tested from the smelting slag of Bi reverberatory furnace by water quench leaching, and the tested process was compared with the present soda leaching process.

A new technology is presented for the recovery of ammonia and carbon dioxide from the ammonia containing wastewater in integrated soda plants.