Title: Producing method of sodium carbonate
Application Number: 89102196 Application Date: 1989.04.07
Publication Number: 1046142 Publication Date: 1990.10.17
Approval Pub. Date: Granted Pub. Date: 1993.05.12
International Classifi-cation: C01D7/12
Applicant(s) Name: Ma Quanliu Address:
Inventor(s) Name:
Attorney & Agent: SHU WANSHU
Abstract:
     The present invention relates to a solid phase production method of pure soda which uses the material contained sodium sulfate, such as mirabilite etc. and the solid ammonium bicarbonate as the raw materials. The said method is that after the material contained sodium sulfate is solved and the impurity is removed, the screened ammonium bicarbonate is added in, and then through solid phase reaction, separation, washing, dewatering, calcination, so that the pure soda and the by-product ammonium sulphate are prepared. The equipment investment required for the said method is a little, its process is simple, it can reduce the contamination of the environment. Its production rate is high, economic benefit is good, and the plant-building scale can be changed in, to larger or smaller therefore it is advantagesous to the application and popularization.
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