Industrialization of soda ash and baking soda made from sodium sulfate by the Process Engineering Institute

The large-scale use of sulfuric acid and sodium alkali in the chemical and metallurgical industry has caused a large amount of waste sodium sulfate to be produced in the industrial production process, which is difficult to realize resource utilization

Soda ash made from sodium sulfate is an effective way to alleviate the storage pressure of by-product sodium sulfate, but due to problems such as high energy consumption and high impurity content of ammonium sulfate, industrial applications have not been realized

Zhang Yang, an associate researcher of Zheng Shili's research group of the Resource and Environmental Research Department of the Institute of Process Engineering, led the research team to overcome the technical problems of sodium sulfate to make soda ash and realize industrial applications

From 2018 to 2019, the technology has completed industrial trials in Huludao, Liaoning and Panzhihua, Sichuan

This technology solves the problem of using by-product sodium sulfate, can be applied to the process of making soda ash from mineral Glauber's salt, has economic benefits and application prospects, and promotes the development of green chemical industry and circular economy