GB339330A - Process and apparatus for the manufacture of alkali-metal carbonates and bi-carbonates and soluble magnesium salts - Google Patents
Process and apparatus for the manufacture of alkali-metal carbonates and bi-carbonates and soluble magnesium saltsInfo
- Publication number
- GB339330A GB339330A GB2360229A GB2360229A GB339330A GB 339330 A GB339330 A GB 339330A GB 2360229 A GB2360229 A GB 2360229A GB 2360229 A GB2360229 A GB 2360229A GB 339330 A GB339330 A GB 339330A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pressure
- magnesium
- potassium
- carbonate
- carbon dioxide
- 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
- 238000000034 method Methods 0.000 title abstract 8
- 229910000288 alkali metal carbonate Inorganic materials 0.000 title 1
- 150000008041 alkali metal carbonates Chemical class 0.000 title 1
- 159000000003 magnesium salts Chemical class 0.000 title 1
- 238000004519 manufacturing process Methods 0.000 title 1
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract 14
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 abstract 11
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 abstract 9
- 239000001095 magnesium carbonate Substances 0.000 abstract 9
- 235000014380 magnesium carbonate Nutrition 0.000 abstract 8
- 229910000021 magnesium carbonate Inorganic materials 0.000 abstract 8
- 239000001569 carbon dioxide Substances 0.000 abstract 7
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract 7
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical class [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 abstract 5
- 239000001103 potassium chloride Substances 0.000 abstract 5
- 235000011164 potassium chloride Nutrition 0.000 abstract 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 abstract 4
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 abstract 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 abstract 4
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 abstract 4
- 150000003839 salts Chemical class 0.000 abstract 4
- 239000000243 solution Substances 0.000 abstract 4
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 abstract 3
- 235000017557 sodium bicarbonate Nutrition 0.000 abstract 3
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 abstract 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 abstract 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 abstract 2
- 239000003513 alkali Substances 0.000 abstract 2
- 229910000019 calcium carbonate Inorganic materials 0.000 abstract 2
- 150000004649 carbonic acid derivatives Chemical class 0.000 abstract 2
- 150000003841 chloride salts Chemical class 0.000 abstract 2
- 239000007789 gas Substances 0.000 abstract 2
- 229910052749 magnesium Inorganic materials 0.000 abstract 2
- 229910001629 magnesium chloride Inorganic materials 0.000 abstract 2
- 235000011147 magnesium chloride Nutrition 0.000 abstract 2
- 235000011181 potassium carbonates Nutrition 0.000 abstract 2
- 229920006395 saturated elastomer Polymers 0.000 abstract 2
- 229910000030 sodium bicarbonate Inorganic materials 0.000 abstract 2
- 239000011780 sodium chloride Substances 0.000 abstract 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical class OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 abstract 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 239000003638 chemical reducing agent Substances 0.000 abstract 1
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 abstract 1
- 238000000354 decomposition reaction Methods 0.000 abstract 1
- 229910000514 dolomite Inorganic materials 0.000 abstract 1
- 239000010459 dolomite Substances 0.000 abstract 1
- 239000000706 filtrate Substances 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 239000011777 magnesium Substances 0.000 abstract 1
- 235000011160 magnesium carbonates Nutrition 0.000 abstract 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 abstract 1
- 239000000395 magnesium oxide Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 150000002823 nitrates Chemical class 0.000 abstract 1
- 239000011591 potassium Substances 0.000 abstract 1
- 229910052700 potassium Inorganic materials 0.000 abstract 1
- 229910000027 potassium carbonate Inorganic materials 0.000 abstract 1
- 239000002244 precipitate Substances 0.000 abstract 1
- 239000012266 salt solution Substances 0.000 abstract 1
- 159000000000 sodium salts Chemical class 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 abstract 1
- -1 sylvine Chemical class 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
- C01D7/06—Preparation via sodium or potassium magnesium carbonate
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)
Abstract
339,330. Potts, H. E., (Soc. Anon. Alealina). Aug. 1, 1928. Alkali carbonates and bicarbonates are obtained by decomposition of a double carbonate of magnesium and potassium made by reacting nascent magnesium carbonate with a solution of a potassium salt, with or without a sodium salt, saturated with carbon dioxide at a pressure at least equal to the critical pressure at the temperature employed. Dolomite or magnesite is partially converted into oxides in a furnace B1, moistened and ground in B3, and re-carbonated in B4. The carbonates are suspended in a solution of say potassium chloride, containing 150-300 grams per litre, in B5, and forced by a pump B6 into an apparatus A1 in counter-current to carbon dioxide, which comprises 30-40 per cent of the roaster gases, fed by a compressor B2 at a pressure at least equal to the critical pressure. Magnesium carbonate dissolves, the pressure of the escaping gas and liquid is utilized in motors B7, B8, and the solution is filtered free from calcium carbonate in B9, a solution which may contain 100 grams or more of anhydrous magnesium carbonate being obtained. Excess carbon dioxide is removed in an agitator A2, or pressure reducer, the temperature being maintained at 18-27‹ C., say 22‹ C., when magnesium carbonate is precipitated and reacts in its nascent condition to form the double salt KHMg(CO3)2.4H2O. This precipitates, and is filtered in the apparatus A3, stage (1), dried in carbon dioxide under pressure, stage (2) and is decomposed, for example by steam, stage (3), into magnesium and potassium carbonates. The filtrate contains magnesium chloride, excess potassium chloride and other salts which may accompany this. Potassium carbonate is dissolved out from the magnesium carbonate, which may be returned to B5, while the potassium salt may react with sodium chloride and carbon dioxide in AH to produce sodium bicarbonates and from it, carbonate. The potassium chloride may be returned to B5. If sodium chloride replaces potassium chloride, sodium bicarbonate and magnesium chloride are formed by the reaction with carbon dioxide under high pressure in A1. By employing. a mixture of chlorides such as sylvine, part of the magnesium carbonate is converted into sodium bicarbonate which remains with the calcium carbonate in B9, while on reducing the pressure, the double salt is produced as previously described. Magnesium carbonate from any source may be used in the process, and alkali sulphates or nitrates may replace the chlorides. The process may be carried out concurrently with the known process described in Specification 184/81, in which the double salt is formed by treating magnesia, or magnesium hydrate with a potassium salt solution saturated with carbon dioxide at a low pressure of 2-4 kg./cm.<2>. The solid residue of this process can be used as a source of magnesium carbonate in the high pressure process, while the mother liquors from this latter process may be used as a source of potassium chloride in the low pressure process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2360229A GB339330A (en) | 1929-08-01 | 1929-08-01 | Process and apparatus for the manufacture of alkali-metal carbonates and bi-carbonates and soluble magnesium salts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2360229A GB339330A (en) | 1929-08-01 | 1929-08-01 | Process and apparatus for the manufacture of alkali-metal carbonates and bi-carbonates and soluble magnesium salts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB339330A true GB339330A (en) | 1930-12-01 |
Family
ID=10198308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2360229A Expired GB339330A (en) | 1929-08-01 | 1929-08-01 | Process and apparatus for the manufacture of alkali-metal carbonates and bi-carbonates and soluble magnesium salts |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB339330A (en) |
-
1929
- 1929-08-01 GB GB2360229A patent/GB339330A/en not_active Expired
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