Title: Making Method of sodium hydroxide
Application Number: 89105500 Application Date: 1989.07.31
Publication Number: 1049139 Publication Date: 1991.02.13
Approval Pub. Date: Granted Pub. Date: 1993.12.29
International Classifi-cation: C01D1/04
Applicant(s) Name: Lanzhou Univ. Address: 730001
Inventor(s) Name: Fang Shengqiang
Attorney & Agent: ZHANG JIN
Abstract:
     A fabrication method of hydroxide of Na and K or Ba from sulfied of Na and K or Ba is published in this invention. Proper copper oxide is put into aqueous solution of sulfide of Na and K or Ba, corresponding hydroxide is generated through reaction. As compared with present technique, for this invention sodium sulfide is fabricated by Mirabilite, which is converted into sodium hydroxide.
Time: 4