DE401872C - Process for the preparation of pure phosphoric acid esters of phenols - Google Patents
Process for the preparation of pure phosphoric acid esters of phenolsInfo
- Publication number
- DE401872C DE401872C DEB103833D DEB0103833D DE401872C DE 401872 C DE401872 C DE 401872C DE B103833 D DEB103833 D DE B103833D DE B0103833 D DEB0103833 D DE B0103833D DE 401872 C DE401872 C DE 401872C
- Authority
- DE
- Germany
- Prior art keywords
- phenols
- phosphoric acid
- acid esters
- preparation
- pure phosphoric
- 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
- 150000002989 phenols Chemical class 0.000 title claims description 7
- 238000000034 method Methods 0.000 title claims description 5
- 150000003014 phosphoric acid esters Chemical class 0.000 title claims description 4
- 238000002360 preparation method Methods 0.000 title claims description 3
- 239000003513 alkali Substances 0.000 claims description 5
- 239000003610 charcoal Substances 0.000 claims description 5
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims 1
- 239000012043 crude product Substances 0.000 claims 1
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 2
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- QTWJRLJHJPIABL-UHFFFAOYSA-N 2-methylphenol;3-methylphenol;4-methylphenol Chemical compound CC1=CC=C(O)C=C1.CC1=CC=CC(O)=C1.CC1=CC=CC=C1O QTWJRLJHJPIABL-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- -1 aryl phosphate Chemical compound 0.000 description 1
- 150000007514 bases Chemical class 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229930003836 cresol Natural products 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
- C07F9/02—Phosphorus compounds
- C07F9/025—Purification; Separation; Stabilisation; Desodorisation of organo-phosphorus compounds
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
- C07F9/02—Phosphorus compounds
- C07F9/06—Phosphorus compounds without P—C bonds
- C07F9/08—Esters of oxyacids of phosphorus
- C07F9/09—Esters of phosphoric acids
- C07F9/12—Esters of phosphoric acids with hydroxyaryl compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
Verfahren zur Darstellung reiner Phosphorsäureester von Phenolen. Durch Patent 396784 ist ein Verfahren zur Gewinnung reiner Phosphorsäureester von Phenolen geschützt, das in. der Behandlung der rohen, freie Phenole enthaltenden Ester mit Alkalilauge unter bestimmten Bedingungen besteht.Process for the preparation of pure phosphoric acid esters of phenols. Patent 396784 protects a process for obtaining pure phosphoric acid esters from phenols, which consists in treating the crude esters containing free phenols with alkali under certain conditions.
Es hat sich nun gezeigt, daß eine noch vollkommenere Befreiung der Triarylphos phate von riechenden Beimischungen, insbesondere eine Entfernung von Kohlenwasserstoffen und basischen Verbindungen, erreicht wird, wenn man die gemäß dem Hauptpatent erhaltenen Produkte noch mit poröser Kohle behandelt.It has now been shown that an even more complete liberation of the Triarylphos phate of odorous admixtures, in particular a removal of Hydrocarbons and basic compounds, is achieved if you use the according to the products obtained in the main patent are still treated with porous charcoal.
Weiterhin wurde gefunden, daß die poröse Kohle auch Phenole und ähnliche saure Verbindungen aufzunehmen vermag, so daß die Behandlung mit verdünnter Alkalilauge gemäß dem Verfahren des. Hauptpatents ganz oder teilweise wegfallen und allein eine Behandlung mit poröser Kohle erfolgen kann, wobei lediglich zur Entfernung der Hauptmenge saurer Verunreinigungen, insbesondere saurer Ester, zweckmäßig eine gewöhnliche Waschung mit Alkalilauge vorausgehen kann. Es können die verschiedensten porösen Kohlen, insbesondere soggenannte aktive Kohlen, verwendet werden.Furthermore, it has been found that the porous charcoal also contains phenols and the like able to absorb acidic compounds, so that the treatment with dilute alkali according to the procedure of the main patent completely or partially omitted and only one Treatment with porous charcoal can be done, only to remove the main amount acidic impurities, especially acidic esters, suitably an ordinary one Washing with alkali can precede. It can be the most varied of porous Coals, in particular so-called active coals, can be used.
Beispiel: 5oo Teile eines Arylphosphats, das noch unveränderten Ausgangsstoff, z. B. Kresol, enthält, wird mit etwa 2o bis 3o Teilen einer aktiven Kohle oder geeigneter Zersetzungskohle zweckmäßig bei höherer Temperatur einige Stunden verrührt. Nach dem Absaugen isst das Produkt farblos und völlig frei von den Ausgangsstoffen sowie von Naphthalin, Pyridin usw., die in den technischen Phenolen stets enthalten sind.Example: 500 parts of an aryl phosphate, the as yet unchanged starting material, z. B. cresol, contains about 2o to 3o parts of an active charcoal or more suitable Decomposition carbon is best stirred for a few hours at a higher temperature. To After suction, the product eats colorless and completely free of the starting materials as well of naphthalene, pyridine, etc., which are always contained in technical phenols.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEB103833D DE401872C (en) | 1922-03-04 | 1922-03-04 | Process for the preparation of pure phosphoric acid esters of phenols |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEB103833D DE401872C (en) | 1922-03-04 | 1922-03-04 | Process for the preparation of pure phosphoric acid esters of phenols |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE401872C true DE401872C (en) | 1924-09-10 |
Family
ID=6990860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEB103833D Expired DE401872C (en) | 1922-03-04 | 1922-03-04 | Process for the preparation of pure phosphoric acid esters of phenols |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE401872C (en) |
-
1922
- 1922-03-04 DE DEB103833D patent/DE401872C/en not_active Expired
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