GB912532A - Improvements in the treatment of dense soda ash - Google Patents
Improvements in the treatment of dense soda ashInfo
- Publication number
- GB912532A GB912532A GB3791260A GB3791260A GB912532A GB 912532 A GB912532 A GB 912532A GB 3791260 A GB3791260 A GB 3791260A GB 3791260 A GB3791260 A GB 3791260A GB 912532 A GB912532 A GB 912532A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ash
- na2co3
- solution
- withdrawn
- dense
- 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.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D7/00—Carbonates of sodium, potassium or alkali metals in general
- C01D7/22—Purification
- C01D7/24—Crystallisation
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
In a process producing dense soda ash, where trona is dissolved in a circulating aqueous solution of Na2CO3 and NaHCO3 containing a greater concentration of carbonate than bicarbonate insoluble and organic substances are removed from the loaded solution, sodium sesquicarbonate is crystallized by cooling and filtering, and the sesquicarbonate is heated to form light ash, a portion of the filtered circulating solution is withdrawn at any point in the cycle, and reacted with the light ash to form Na2CO3.H2O, which is heated to form dense ash. The withdrawn solution, containing 17,5-38 parts Na2CO3 and 1-16 parts NaHCO3/100 parts water (temperature 15 DEG -105 DEG C.) is contacted with light ash (temperature 140 DEG -265 DEG C.) to form a 1:1 molar mixture. Heating the Na2CO3.H2O to 140 DEG -210 DEG C. gives dense ash. The withdrawn liquor may be diluted with water before contacting with light ash.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3791260A GB912532A (en) | 1960-11-04 | 1960-11-04 | Improvements in the treatment of dense soda ash |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3791260A GB912532A (en) | 1960-11-04 | 1960-11-04 | Improvements in the treatment of dense soda ash |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB912532A true GB912532A (en) | 1962-12-12 |
Family
ID=10399882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3791260A Expired GB912532A (en) | 1960-11-04 | 1960-11-04 | Improvements in the treatment of dense soda ash |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB912532A (en) |
-
1960
- 1960-11-04 GB GB3791260A patent/GB912532A/en not_active Expired
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