GB1405150A - Process for the production of dense soda - Google Patents
Process for the production of dense sodaInfo
- Publication number
- GB1405150A GB1405150A GB4963572A GB4963572A GB1405150A GB 1405150 A GB1405150 A GB 1405150A GB 4963572 A GB4963572 A GB 4963572A GB 4963572 A GB4963572 A GB 4963572A GB 1405150 A GB1405150 A GB 1405150A
- Authority
- GB
- United Kingdom
- Prior art keywords
- soda
- mass
- sodium bicarbonate
- weight
- water content
- 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
- C01D7/35—Varying the content of water of crystallisation or the specific gravity
- C01D7/37—Densifying sodium carbonate
-
- 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)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
1405150 Sodium carbonate CHEMIEBAU DR A ZIEREN GmbH & CO KG 27 Oct 1972 [30 Oct 1971] 49635/72 Heading C1A Dense soda having a bulk density of from 0À9 to 1À5 g./cm.<SP>3</SP> is made by (1) compressing between rollers a mass of crude moist sodium bicarbonate precipitated from an ammonia soda process and obtained after separation from its mother liquor, the crude moist sodium bicarbonate either itself having a water content of below 12% by weight or, if it has an initial water content of 12% by weight or more, having been mixed with sufficient essentially waterfree soda to provide the mass with a water content of below 12% by weight, and the compressing being sufficient to increase the bulk density of the mass to from 1À2 to 2 g./cm.<SP>3</SP> and (2) calcining the compressed mass at a temperature of from 140‹ to 250‹ C. directly to dense soda. The water-free soda, which is mixed with the sodium bicarbonate, may be obtained from the dense soda product or it may be a middledensity or light soda. The compressed product, optionally after comminution may be screened and only that portion with a particle size of 0À5-30 mm. calcined. The remainder may be compressed again with more crude sodium bicarbonate.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19712154214 DE2154214C3 (en) | 1971-10-30 | 1971-10-30 | Process for the production of dense soda |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1405150A true GB1405150A (en) | 1975-09-03 |
Family
ID=5823856
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4963572A Expired GB1405150A (en) | 1971-10-30 | 1972-10-27 | Process for the production of dense soda |
Country Status (7)
Country | Link |
---|---|
JP (1) | JPS4851896A (en) |
BE (1) | BE790594A (en) |
DE (1) | DE2154214C3 (en) |
FR (1) | FR2157971B1 (en) |
GB (1) | GB1405150A (en) |
IT (1) | IT969873B (en) |
NL (1) | NL7214675A (en) |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR322022A (en) * | 1902-06-11 | 1903-01-24 | Hooker Ayerst Henham | Improvements made and relating to the transformation of baking soda into soda ash |
FR2073219A1 (en) * | 1969-11-27 | 1971-10-01 | Roder Carol | Dense sodium carbonate - prepared directly from crude bicarbonate |
-
0
- BE BE790594D patent/BE790594A/en not_active IP Right Cessation
-
1971
- 1971-10-30 DE DE19712154214 patent/DE2154214C3/en not_active Expired
-
1972
- 1972-10-25 IT IT3089072A patent/IT969873B/en active
- 1972-10-26 FR FR7237965A patent/FR2157971B1/fr not_active Expired
- 1972-10-27 GB GB4963572A patent/GB1405150A/en not_active Expired
- 1972-10-30 NL NL7214675A patent/NL7214675A/xx not_active Application Discontinuation
- 1972-10-30 JP JP10876472A patent/JPS4851896A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
JPS4851896A (en) | 1973-07-20 |
FR2157971A1 (en) | 1973-06-08 |
DE2154214C3 (en) | 1978-09-14 |
FR2157971B1 (en) | 1976-04-23 |
DE2154214B2 (en) | 1978-01-19 |
BE790594A (en) | 1973-02-15 |
NL7214675A (en) | 1973-05-02 |
IT969873B (en) | 1974-04-10 |
DE2154214A1 (en) | 1973-06-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |