Invention Grant
- Patent Title: Method for preparing dithionite
- Patent Title (中): 连二亚硫酸盐的制备方法
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Application No.: US12598457Application Date: 2008-04-25
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Publication No.: US07993622B2Publication Date: 2011-08-09
- Inventor: Risto Rahkola
- Applicant: Risto Rahkola
- Applicant Address: FI
- Assignee: Kemira OYJ
- Current Assignee: Kemira OYJ
- Current Assignee Address: FI
- Agency: Cantor Colburn LLP
- Priority: FI20075317 20070504
- International Application: PCT/FI2008/050225 WO 20080425
- International Announcement: WO2008/135631 WO 20081113
- Main IPC: C01B17/66
- IPC: C01B17/66
Abstract:
The present invention relates to a method for preparing dithionite solution with a reaction wherein sodium bisulfite is reduced with sodium borohydride solution to obtain dithionite, wherein the rise of the pH of the solution is prevented by adjusting the pH with carbon dioxide.
Public/Granted literature
- US20100181531A1 METHOD FOR PREPARING DITHIONITE Public/Granted day:2010-07-22
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