FR2363517A1 - Procede de preparation de carbonate de sodium anhydre et carbonate de sodium anhydre obtenu par ce procede - Google Patents
Procede de preparation de carbonate de sodium anhydre et carbonate de sodium anhydre obtenu par ce procedeInfo
- Publication number
- FR2363517A1 FR2363517A1 FR7726711A FR7726711A FR2363517A1 FR 2363517 A1 FR2363517 A1 FR 2363517A1 FR 7726711 A FR7726711 A FR 7726711A FR 7726711 A FR7726711 A FR 7726711A FR 2363517 A1 FR2363517 A1 FR 2363517A1
- Authority
- FR
- France
- Prior art keywords
- sodium carbonate
- anhydrous sodium
- suspension
- preparation
- line
- 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.)
- Granted
Links
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 title abstract 8
- 238000000034 method Methods 0.000 title abstract 4
- 238000002360 preparation method Methods 0.000 title abstract 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 abstract 4
- 239000000725 suspension Substances 0.000 abstract 4
- 238000000354 decomposition reaction Methods 0.000 abstract 3
- 239000007864 aqueous solution Substances 0.000 abstract 2
- 235000017557 sodium bicarbonate Nutrition 0.000 abstract 2
- 229910000030 sodium bicarbonate Inorganic materials 0.000 abstract 2
- 229910000029 sodium carbonate Inorganic materials 0.000 abstract 2
- 235000017550 sodium carbonate Nutrition 0.000 abstract 2
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 229920006395 saturated elastomer Polymers 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
- C01D7/12—Preparation of carbonates from bicarbonates or bicarbonate-containing product
-
- 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
- C01D7/35—Varying the content of water of crystallisation or the specific gravity
- C01D7/37—Densifying sodium carbonate
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
L'invention concerne un procédé de préparation de carbonate de sodium anhydre. Ce procédé comprend la préparation d'une suspension de bicarbonate de sodium dans une solution aqueuse de carbonate de sodium et la décomposition du bicarbonate de sodium dans ladite suspension par mise en contact à contre-courant de ladite suspension en l'amenant par une conduite 14 au sommet d'une tour de décomposition 10 et en amenant de la vapeur pressurisée par une conduite 16 au fond de ladite tour de décomposition 10 à des températures supérieures à 150 degrés C, par lequel on obtient du carbonate de sodium anhydre sous la forme d'une suspension dans sa solution aqueuse saturée, par la conduite 20. Ce procédé permet de préparer des cendres de soude dense ayant une pureté élevée et une taille de particule uniforme.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10492976A JPS5330999A (en) | 1976-09-03 | 1976-09-03 | Production of anhydrous sodium carbonate |
| JP10493076A JPS5331000A (en) | 1976-09-03 | 1976-09-03 | Production of heavy sodium carbonate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2363517A1 true FR2363517A1 (fr) | 1978-03-31 |
| FR2363517B1 FR2363517B1 (fr) | 1982-04-16 |
Family
ID=26445294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7726711A Granted FR2363517A1 (fr) | 1976-09-03 | 1977-09-02 | Procede de preparation de carbonate de sodium anhydre et carbonate de sodium anhydre obtenu par ce procede |
Country Status (5)
| Country | Link |
|---|---|
| DE (1) | DE2739678C3 (fr) |
| FR (1) | FR2363517A1 (fr) |
| GB (1) | GB1563546A (fr) |
| IT (1) | IT1086510B (fr) |
| NL (1) | NL173262B (fr) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6065717A (ja) * | 1983-09-20 | 1985-04-15 | Asahi Glass Co Ltd | 無水炭酸ソ−ダの製造方法 |
| US4743439A (en) * | 1984-01-16 | 1988-05-10 | General Chemical Corporation | Wet calcination of alkali metal bicarbonates in hydrophobic media |
| CN111392753B (zh) * | 2020-03-31 | 2022-03-15 | 中国铝业股份有限公司 | 一种从深度碳分母液中析出碳酸氢钠的方法 |
| CN113620319B (zh) * | 2021-07-28 | 2023-11-21 | 杨仁春 | 一种碳酸氢钠固体湿法热解制备碳酸钠晶体的工艺 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1221616B (de) * | 1961-04-17 | 1966-07-28 | Wyandotte Chemicals Corp | Verfahren zur Herstellung von dichtem wasserfreiem Natriumcarbonat |
-
1977
- 1977-09-01 GB GB3665077A patent/GB1563546A/en not_active Expired
- 1977-09-02 FR FR7726711A patent/FR2363517A1/fr active Granted
- 1977-09-02 DE DE19772739678 patent/DE2739678C3/de not_active Expired
- 1977-09-02 NL NL7709685A patent/NL173262B/xx not_active IP Right Cessation
- 1977-09-02 IT IT2721077A patent/IT1086510B/it active
Also Published As
| Publication number | Publication date |
|---|---|
| NL7709685A (nl) | 1978-03-07 |
| NL173262B (nl) | 1983-08-01 |
| DE2739678B2 (de) | 1981-07-30 |
| FR2363517B1 (fr) | 1982-04-16 |
| GB1563546A (en) | 1980-03-26 |
| DE2739678C3 (de) | 1982-05-13 |
| IT1086510B (it) | 1985-05-28 |
| DE2739678A1 (de) | 1978-03-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |