JPS57149825A - Manufacture of molded soda ash - Google Patents
Manufacture of molded soda ashInfo
- Publication number
- JPS57149825A JPS57149825A JP3682281A JP3682281A JPS57149825A JP S57149825 A JPS57149825 A JP S57149825A JP 3682281 A JP3682281 A JP 3682281A JP 3682281 A JP3682281 A JP 3682281A JP S57149825 A JPS57149825 A JP S57149825A
- Authority
- JP
- Japan
- Prior art keywords
- soda ash
- soln
- molded
- ash
- added
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Processing Of Solid Wastes (AREA)
Abstract
PURPOSE: To obtain molded soda ash with superior strength by subjecting a soda ash slurry to solid-liq. separation, drying the solid by heating, adding a prescribed percentage of a soda ash soln. to the resulting light ash, kneading them, and molding the kneaded material.
CONSTITUTION: A soda ash slurry contg. Na2CO3.H2O, NaHCO3 or Na2CO3. NaHCO3.2H2O (sodium sesquicarbonate) is dehydrated with a centrifugal separator or the like, and the dehydrated cake is dried by heating. To the resulting light ash is added 3W10wt% soda ash soln., and they are kneaded and molded to manufacture the desired molded soda ash. The soda ash soln. contains 5W35% soda ash, and it is further effective to add several% SiO2 to the soln. The molded soda ash shows high strength owing to Na2CO3.H2O in the added soda ash soln. and sodium silicate formed from the added SiO2.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3682281A JPS57149825A (en) | 1981-03-13 | 1981-03-13 | Manufacture of molded soda ash |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3682281A JPS57149825A (en) | 1981-03-13 | 1981-03-13 | Manufacture of molded soda ash |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57149825A true JPS57149825A (en) | 1982-09-16 |
Family
ID=12480441
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3682281A Pending JPS57149825A (en) | 1981-03-13 | 1981-03-13 | Manufacture of molded soda ash |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57149825A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1170256A3 (en) * | 2000-07-05 | 2003-11-26 | Henkel Kommanditgesellschaft auf Aktien | Mechanically stable soda particles |
-
1981
- 1981-03-13 JP JP3682281A patent/JPS57149825A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1170256A3 (en) * | 2000-07-05 | 2003-11-26 | Henkel Kommanditgesellschaft auf Aktien | Mechanically stable soda particles |
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