Title: Water dissolving exploit technology for mining glauberite
Application Number: 88105819 Application Date: 1988.12.23
Publication Number: 1043767 Publication Date: 1990.07.11
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: B01D9/00,C01D5/10,E21B43/28
Applicant(s) Name: Changsha Desigh Inst. of Chemical Address:
Inventor(s) Name: Lu Zeqing
Attorney & Agent: CHENG GUILAN
Abstract:
     This technology features that the mixed salt of glauberite is decomposed at a temp. below 17 deg.C into Na2SO4.10H2O, that is then dissolved under the condition of raising temp. to obtain a raw solution containing Na2SO4 and to further obtain the finished Na2SO4 by refining the raw solution. Compared with existing techniques, it has a greatly shortened mining period of only 20-60 days. and a Na2SO4 leaching rate of over 90%. The solution has a stable concentration and can be continuously output.
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