FR2046253A5 - Sodium carbonate free from sodium - hydroxide - Google Patents
Sodium carbonate free from sodium - hydroxideInfo
- Publication number
- FR2046253A5 FR2046253A5 FR7014398A FR7014398A FR2046253A5 FR 2046253 A5 FR2046253 A5 FR 2046253A5 FR 7014398 A FR7014398 A FR 7014398A FR 7014398 A FR7014398 A FR 7014398A FR 2046253 A5 FR2046253 A5 FR 2046253A5
- Authority
- FR
- France
- Prior art keywords
- tonne
- na2co3
- naoh
- recycled
- sodium
- 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
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 title abstract 21
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 title abstract 16
- 229910000029 sodium carbonate Inorganic materials 0.000 title abstract 8
- 229940083608 sodium hydroxide Drugs 0.000 title 1
- 235000011121 sodium hydroxide Nutrition 0.000 title 1
- 235000017550 sodium carbonate Nutrition 0.000 abstract 7
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 abstract 4
- 238000009621 Solvay process Methods 0.000 abstract 2
- 238000001354 calcination Methods 0.000 abstract 2
- 235000017557 sodium bicarbonate Nutrition 0.000 abstract 2
- 229910000030 sodium bicarbonate Inorganic materials 0.000 abstract 2
- 238000000889 atomisation Methods 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Carbon And Carbon Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
free from NaOH is made from NaOH-containing sodium carbonate (A) from an atomization tower by mixing with a quantity of NaHCO3 (B) at least equimolar with the NaOH content, and calcining the mixture (C) at 180-250 degrees C. (A) is produced by the action of CO2 on atomized NaOH solution in the atomized tower. Calcination temp. may be 220 degrees C. (A) may be mixed with recycled product Na2CO3 and/or Na2CO3 from the ammonia-soda-process. Recycled Na2CO3 often contains unchanged NaHCO3 which serves to react with the NaOH in (A). 5 tonne/hr NaOH-containing Na2CO3 (A) and 25 tonne/hr (B) containing 9% wt H2O from the ammonia-soda process, and 10 tonne/hr recycled Na2CO3 are mixed and calcined, yielding 29.5 tonne/hr Na2CO3, of which 19.5 tonne/hr is discharged as finished product, 10 tonne/hr being recycled.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19691920306 DE1920306A1 (en) | 1969-04-22 | 1969-04-22 | Process for the production of sodium hydroxide-free soda |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2046253A5 true FR2046253A5 (en) | 1971-03-05 |
Family
ID=5731885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7014398A Expired FR2046253A5 (en) | 1969-04-22 | 1970-04-21 | Sodium carbonate free from sodium - hydroxide |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE746830A (en) |
| DE (1) | DE1920306A1 (en) |
| FR (1) | FR2046253A5 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020150803A1 (en) * | 2019-01-24 | 2020-07-30 | Jose Panchera Luciano | Liquid-state sodium carbonate and process for obtaining same |
-
1969
- 1969-04-22 DE DE19691920306 patent/DE1920306A1/en active Pending
-
1970
- 1970-03-04 BE BE746830D patent/BE746830A/en unknown
- 1970-04-21 FR FR7014398A patent/FR2046253A5/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020150803A1 (en) * | 2019-01-24 | 2020-07-30 | Jose Panchera Luciano | Liquid-state sodium carbonate and process for obtaining same |
Also Published As
| Publication number | Publication date |
|---|---|
| BE746830A (en) | 1970-08-17 |
| DE1920306A1 (en) | 1970-11-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |