GB883202A - Improvements in the manfacture of sodium carbonate - Google Patents
Improvements in the manfacture of sodium carbonateInfo
- Publication number
- GB883202A GB883202A GB1481757A GB1481757A GB883202A GB 883202 A GB883202 A GB 883202A GB 1481757 A GB1481757 A GB 1481757A GB 1481757 A GB1481757 A GB 1481757A GB 883202 A GB883202 A GB 883202A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bicarbonate
- gases
- tube
- superheater
- entrained
- 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
- C01D7/12—Preparation of carbonates from bicarbonates or bicarbonate-containing product
- C01D7/123—Preparation of carbonates from bicarbonates or bicarbonate-containing product by thermal decomposition of solids in the absence of a liquid medium
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Abstract
<PICT:0883202/III/1> In the manufacture of sodium carbonate by calcination of sodium bicarbonate, particulate bicarbonate is entrained in a gas stream which includes carbon dioxide, or carbon dioxide and steam produced in the calcining operation and has been preheated to above 500 DEG C. and the gas stream containing the entrained bicarbonate is passed through a reactor in which calcination takes place. Bicarbonate crystals are fed from screen 1 through feeder 2 into calcining tube 3 at restricted throat 3a. Gas, preheated to at least 700 DEG C., passes into tube 3 from f, and picks up, and carries, the bicarbonate up the tube, and round the inverted-U 4 into cyclone separator 5. Separated soda is discharged at 11 at about 120 DEG C. and passed to packing, while the gases containing CO2 and H2O are drawn off by pump 6. Part of these gases passes through a to storage 7 and part is recycled through b, and superheater 9 to pipe f. Fuel is fed through e into combustion chamber 10 of the superheater and part of the resulting gases may be recycled through c, fan 8 and d. The steam may be removed from the CO2 gases by condensation if desired.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1481757A GB883202A (en) | 1957-05-09 | 1957-05-09 | Improvements in the manfacture of sodium carbonate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1481757A GB883202A (en) | 1957-05-09 | 1957-05-09 | Improvements in the manfacture of sodium carbonate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB883202A true GB883202A (en) | 1961-11-29 |
Family
ID=10048007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1481757A Expired GB883202A (en) | 1957-05-09 | 1957-05-09 | Improvements in the manfacture of sodium carbonate |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB883202A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3232701A (en) * | 1960-11-29 | 1966-02-01 | Basf Ag | Method of calcining sodium bicarbonate |
| US3336104A (en) * | 1963-12-13 | 1967-08-15 | Intermountain Res & Dev Corp | Continuous recycle heating process for the production of soda ash and alkali metal phosphates |
| US5609838A (en) * | 1995-06-09 | 1997-03-11 | Tg Soda Ash, Inc. | Equilibrium production of sodium carbonate from sodium bicarbonate |
| US5766270A (en) | 1996-05-21 | 1998-06-16 | Tg Soda Ash, Inc. | Solution mining of carbonate/bicarbonate deposits to produce soda ash |
| US5955043A (en) | 1996-08-29 | 1999-09-21 | Tg Soda Ash, Inc. | Production of sodium carbonate from solution mine brine |
| US5989505A (en) * | 1996-03-18 | 1999-11-23 | Solvay Minerals, Inc. | Method for recovery of alkali values from trona using air stripping |
| US6322767B1 (en) | 1996-05-21 | 2001-11-27 | Fmc Corporation | Process for making sodium carbonate decahydrate from sodium carbonate/bicarbonate liquors |
-
1957
- 1957-05-09 GB GB1481757A patent/GB883202A/en not_active Expired
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3232701A (en) * | 1960-11-29 | 1966-02-01 | Basf Ag | Method of calcining sodium bicarbonate |
| US3336104A (en) * | 1963-12-13 | 1967-08-15 | Intermountain Res & Dev Corp | Continuous recycle heating process for the production of soda ash and alkali metal phosphates |
| US5609838A (en) * | 1995-06-09 | 1997-03-11 | Tg Soda Ash, Inc. | Equilibrium production of sodium carbonate from sodium bicarbonate |
| US5989505A (en) * | 1996-03-18 | 1999-11-23 | Solvay Minerals, Inc. | Method for recovery of alkali values from trona using air stripping |
| US5766270A (en) | 1996-05-21 | 1998-06-16 | Tg Soda Ash, Inc. | Solution mining of carbonate/bicarbonate deposits to produce soda ash |
| US6251346B1 (en) | 1996-05-21 | 2001-06-26 | Tg Soda Ash, Inc. | Solution mining of carbonate/bicarbonate deposits to produce soda ash |
| US6322767B1 (en) | 1996-05-21 | 2001-11-27 | Fmc Corporation | Process for making sodium carbonate decahydrate from sodium carbonate/bicarbonate liquors |
| US5955043A (en) | 1996-08-29 | 1999-09-21 | Tg Soda Ash, Inc. | Production of sodium carbonate from solution mine brine |
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