DE133500C - - Google Patents
Info
- Publication number
- DE133500C DE133500C DENDAT133500D DE133500DA DE133500C DE 133500 C DE133500 C DE 133500C DE NDAT133500 D DENDAT133500 D DE NDAT133500D DE 133500D A DE133500D A DE 133500DA DE 133500 C DE133500 C DE 133500C
- Authority
- DE
- Germany
- Prior art keywords
- alkali
- phenol
- sodium
- sulphite
- salicylic acid
- 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.)
- Active
Links
- YGSDEFSMJLZEOE-UHFFFAOYSA-N Salicylic acid Chemical compound OC(=O)C1=CC=CC=C1O YGSDEFSMJLZEOE-UHFFFAOYSA-N 0.000 claims description 10
- 239000003513 alkali Substances 0.000 claims description 6
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 5
- 229960004889 salicylic acid Drugs 0.000 claims description 5
- LSNNMFCWUKXFEE-UHFFFAOYSA-L Sulphite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 claims description 2
- SRSXLGNVWSONIS-UHFFFAOYSA-N Benzenesulfonic acid Chemical compound OS(=O)(=O)C1=CC=CC=C1 SRSXLGNVWSONIS-UHFFFAOYSA-N 0.000 claims 1
- 229940092714 benzenesulfonic acid Drugs 0.000 claims 1
- 239000003518 caustics Substances 0.000 claims 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- BVKZGUZCCUSVTD-UHFFFAOYSA-N Carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 4
- SRSXLGNVWSONIS-UHFFFAOYSA-M benzenesulfonate Chemical compound [O-]S(=O)(=O)C1=CC=CC=C1 SRSXLGNVWSONIS-UHFFFAOYSA-M 0.000 description 3
- 229940077388 benzenesulfonate Drugs 0.000 description 3
- 235000011121 sodium hydroxide Nutrition 0.000 description 3
- UIIMBOGNXHQVGW-UHFFFAOYSA-M NaHCO3 Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- GEHJYWRUCIMESM-UHFFFAOYSA-L Sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L na2so4 Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 2
- PYOZTOXFQNWBIS-UHFFFAOYSA-N phenol;sodium Chemical compound [Na].OC1=CC=CC=C1 PYOZTOXFQNWBIS-UHFFFAOYSA-N 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- ABBQHOQBGMUPJH-UHFFFAOYSA-M Sodium salicylate Chemical compound [Na+].OC1=CC=CC=C1C([O-])=O ABBQHOQBGMUPJH-UHFFFAOYSA-M 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- NESLWCLHZZISNB-UHFFFAOYSA-M sodium phenolate Chemical compound [Na+].[O-]C1=CC=CC=C1 NESLWCLHZZISNB-UHFFFAOYSA-M 0.000 description 1
- 229960004025 sodium salicylate Drugs 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 235000010265 sodium sulphite Nutrition 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/15—Preparation of carboxylic acids or their salts, halides or anhydrides by reaction of organic compounds with carbon dioxide, e.g. Kolbe-Schmitt synthesis
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
JVIl 33500 KLASSE XIq. JVIl 33500 CLASS XIq.
Bei der synthetischen Darstellung des Phenols aus benzolsulfosaurem Natron durch Verschmelzen mit Aetznatron erfolgt die Umsetzung im Wesentlichen nach folgender Gleichung:In the synthetic preparation of phenol from benzenesulfonate of soda by fusing it with caustic soda, the implementation is essentially based on the following equation:
C6 Hh SOS Na + 2NaOH =C 6 H h SO S Na + 2NaOH =
C6H6ONa + Na2 SO3 + JT2 O. C 6 H 6 ONa + Na 2 SO 3 + JT 2 O.
Es hat sich nun ergeben, dafs sich das resultirende Gemisch von Phenolnatron und Natriumsulfit ganz vorzüglich zur directen Darstellung von Salicylsäure eignet.It has now turned out that this is the case The resulting mixture of phenol soda and sodium sulphite is excellent for direct presentation of salicylic acid is suitable.
Eine in bekannter Weise ausgeführte Schmelze aus 200 kg benzolsulfosaurem Natron und 111 kg Aetznatron wird heifs auf Eisenbleche gebracht und nach dem Erkalten gepulvert.A melt made in a known manner from 200 kg of benzenesulfonate and sodium bicarbonate 111 kg of caustic soda gets hot on iron sheets brought and powdered after cooling.
Das Pulver wird unter den bekannten Bedingungen durch Ueberleiten von Kohlensäure in Natriumsalicylat übergeführt, aus welchem die Salicylsäure in üblicher Weise abgeschieden und gereinigt wird.The powder is produced under the known conditions by passing carbonic acid over it converted into sodium salicylate, from which the salicylic acid is deposited in the usual way and is cleaned.
Anstatt die Schmelze trocken zu verwenden, kann man dieselbe auch in möglichst wenig Wasser lösen, wobei ein Theil des Sulfits ungelöst bleibt, und so entfernt werden kann. Diese concentrirte Lösung von Phenolnatrium und Alkalisulfit wird dann zur Trockne verdampft und mit Kohlensäure behandelt.Instead of using the melt dry, you can use it in as little as possible Dissolve water, a part of the sulphite remaining undissolved, and thus being removed. This concentrated solution of sodium phenol and alkali sulphite is then evaporated to dryness and carbonated.
Durch diese directe Verarbeitung der aus benzolsulfosaurem Natron und Aetznatron erhaltenen Schmelze auf Salicylsäure wird ein zweifacher technischer Effect erzielt:By this direct processing of those obtained from benzenesulfonate of soda and caustic soda Melt on salicylic acid has a twofold technical effect:
1. Wird durch die Gegenwart des schwefligsauren Natrons die Oxydation und Färbung des Phenolnatriums auf ein Minimum reducirt und infolge dessen die Reinigung der Salicylsäure wesentlich erleichtert.1. The presence of sodium sulphate causes oxidation and coloration of sodium phenol is reduced to a minimum, and consequently the purification of salicylic acid much easier.
2. Wird die Abscheidung und Reinigung des Phenols umgangen, und dadurch eine wesentliche Ersparnifs an Material und Arbeit erzielt. Aufserdem wird das Aelznalron erspart, welches sonst zur Darstellung von Phenolnatrium aus Phenol verwendet wird.2. Is the separation and purification of the phenol bypassed, and thereby a made substantial savings in material and labor. In addition, the Aelznalron is spared, which is otherwise used to produce phenol sodium from phenol.
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE133500C true DE133500C (en) |
Family
ID=401698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT133500D Active DE133500C (en) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE133500C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE862751C (en) * | 1950-03-17 | 1953-01-12 | Basf Ag | Process for the preparation of salicylic acid derivatives |
| US5108502A (en) * | 1990-03-16 | 1992-04-28 | Hewlett-Packard Company | Boronic acid dyes |
-
0
- DE DENDAT133500D patent/DE133500C/de active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE862751C (en) * | 1950-03-17 | 1953-01-12 | Basf Ag | Process for the preparation of salicylic acid derivatives |
| US5108502A (en) * | 1990-03-16 | 1992-04-28 | Hewlett-Packard Company | Boronic acid dyes |
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