Method for producing low salt low potassium heavy mass sodium carbonate by one step process

Application Number: 00103279
Application Date: 2000.03.22
Publication Number: 1314310
Publication Date: 2001.09.26
Priority Information:
International: C01D7/12
Applicant(s) Name: Yu Zhongfu
Inventor(s) Name: Yu Zhongfu;Yu Sihao
Patent Agency Code: 00000
Patent Agent:
Abstract In a decomposition reaction furnace, sodium bicarbonate is made to decompose into heavy sodium carbonate with low salt and potassium content by using superheated steam or saturated steam as heating medium and at the conditions of 120-180 deg.c temperature, 0.1-0.6 MPa pressure and 6-16 hr reaction period. Carbon dioxide exhaused after decomposition is fed by self pressure into reaction tower to produce sodium bicarbonate. The present invention has the features of short technological process, low power consumption, low cost, high product quality and has less investment.