DE2362952A1 - Reinigung von beta-naphthol - Google Patents
Reinigung von beta-naphtholInfo
- Publication number
- DE2362952A1 DE2362952A1 DE2362952A DE2362952A DE2362952A1 DE 2362952 A1 DE2362952 A1 DE 2362952A1 DE 2362952 A DE2362952 A DE 2362952A DE 2362952 A DE2362952 A DE 2362952A DE 2362952 A1 DE2362952 A1 DE 2362952A1
- Authority
- DE
- Germany
- Prior art keywords
- naphthol
- alpha
- water
- mixture
- cooling
- 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.)
- Pending
Links
- JWAZRIHNYRIHIV-UHFFFAOYSA-N 2-naphthol Chemical compound C1=CC=CC2=CC(O)=CC=C21 JWAZRIHNYRIHIV-UHFFFAOYSA-N 0.000 title claims description 78
- 229950011260 betanaphthol Drugs 0.000 title description 6
- 238000004140 cleaning Methods 0.000 title 1
- KJCVRFUGPWSIIH-UHFFFAOYSA-N 1-naphthol Chemical compound C1=CC=C2C(O)=CC=CC2=C1 KJCVRFUGPWSIIH-UHFFFAOYSA-N 0.000 claims description 54
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- 239000000203 mixture Substances 0.000 claims description 19
- 238000001816 cooling Methods 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 12
- 238000002425 crystallisation Methods 0.000 claims description 8
- 230000008025 crystallization Effects 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 7
- 238000000605 extraction Methods 0.000 claims description 6
- 238000000746 purification Methods 0.000 claims description 5
- 239000012535 impurity Substances 0.000 claims description 2
- 239000013078 crystal Substances 0.000 description 8
- 239000000047 product Substances 0.000 description 3
- 239000008346 aqueous phase Substances 0.000 description 2
- 238000004821 distillation Methods 0.000 description 2
- 239000000975 dye Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 150000004780 naphthols Chemical class 0.000 description 2
- 239000012074 organic phase Substances 0.000 description 2
- 239000012264 purified product Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- XZMCDFZZKTWFGF-UHFFFAOYSA-N Cyanamide Chemical compound NC#N XZMCDFZZKTWFGF-UHFFFAOYSA-N 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 238000003776 cleavage reaction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 230000007017 scission Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
- C07C37/68—Purification; separation; Use of additives, e.g. for stabilisation
- C07C37/70—Purification; separation; Use of additives, e.g. for stabilisation by physical treatment
- C07C37/84—Purification; separation; Use of additives, e.g. for stabilisation by physical treatment by crystallisation
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US00317463A US3848001A (en) | 1972-12-21 | 1972-12-21 | Purification of beta-naphthol by extractive crystallization |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2362952A1 true DE2362952A1 (de) | 1974-06-27 |
Family
ID=23233772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE2362952A Pending DE2362952A1 (de) | 1972-12-21 | 1973-12-18 | Reinigung von beta-naphthol |
Country Status (8)
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7534254B1 (en) | 1988-06-13 | 2009-05-19 | Warsaw Orthopedic, Inc. | Threaded frusto-conical interbody spinal fusion implants |
-
1972
- 1972-12-21 US US00317463A patent/US3848001A/en not_active Expired - Lifetime
-
1973
- 1973-11-02 CA CA184,907A patent/CA985302A/en not_active Expired
- 1973-11-09 GB GB5225473A patent/GB1393336A/en not_active Expired
- 1973-11-15 NL NL7315680A patent/NL7315680A/xx not_active Application Discontinuation
- 1973-11-26 IT IT53898/73A patent/IT1000156B/it active
- 1973-12-18 DE DE2362952A patent/DE2362952A1/de active Pending
- 1973-12-19 JP JP48141424A patent/JPS4988846A/ja active Pending
- 1973-12-20 FR FR7345762A patent/FR2211435B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2211435B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1978-11-10 |
| GB1393336A (en) | 1975-05-07 |
| FR2211435A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1974-07-19 |
| IT1000156B (it) | 1976-03-30 |
| US3848001A (en) | 1974-11-12 |
| CA985302A (en) | 1976-03-09 |
| NL7315680A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1974-06-25 |
| JPS4988846A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1974-08-24 |
| AU6230373A (en) | 1975-05-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE2440111C3 (de) | Verfahren zur Behandlung von eßbaren Glyceridölen | |
| DE69310543T2 (de) | Verfahren zum raffinieren von essbaren ölen | |
| DE69903645T2 (de) | Verfahren zur Extraktion von Lycopin | |
| DE1467535B2 (de) | Verfahren zur herstellung von speiseoel aus oelen, die in gebundener form sowohl linolsaeure als auch staerker ungesaettigte fettsaeuren enthalten | |
| DE2803590A1 (de) | Verfahren zum reinigen von natriumhexafluorosilikat | |
| DE2421903C3 (de) | Verfahren zum Regenerieren von Altöl | |
| DE3247381A1 (de) | Verbessertes verfahren zum reinigen von riboflavin | |
| DE2913007C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | ||
| DE2362952A1 (de) | Reinigung von beta-naphthol | |
| DE2047340A1 (de) | Verfahren zur Herstellung von Polymaleinsaure | |
| DE1259870B (de) | Verfahren zur Vorreinigung von rohem Phthalsaeureanhydrid | |
| DE2163742A1 (de) | Trennung von gesättigten und ungesättigten Fettsäuren | |
| DE3643848A1 (de) | Verfahren zur herstellung hochraffinierter essbarer glyceridoele mit einem anteil an ungesaettigten fettsaeuren im triglyceridverband und ihre verwendung | |
| DE706617C (de) | Verfahren zur Herstellung von Pentaerythrit | |
| DE1146868B (de) | Verfahren zum Reinigen von halogenierten Salicylsaeureaniliden | |
| DE2539027B2 (de) | Verfahren zur reinigung von diaminomaleinsaeuredinitril | |
| DE649165C (de) | Verfahren zur Herstellung von Estern der Methacrylsaeure mit einwertigen Alkoholen | |
| DE3127435A1 (de) | Verfahren zur herstellung von gereinigtem tetraacetylethylendiamin (taed) | |
| EP0529107B1 (de) | Verfahren zur Gewinnung eines Öls mit einstellbarem Carotingehalt aus Palmöl | |
| DE2807209A1 (de) | Verfahren zur herstellung von grobem aluminiumhydroxid | |
| DE945281C (de) | Verfahren zur Abtrennung von festem Paraffin aus paraffinhaltigen OElen, insbesondere fuer die Gewinnung von Paraffinkonzentraten durch Flotation | |
| DE954246C (de) | Verfahren zur Herstellung von Trichloracrylylchlorid aus Hexachlorpropen | |
| CH646069A5 (de) | Verfahren zur isolierung eines materials aus einer loesung. | |
| DE2626361C3 (de) | Verfahren zur Abtrennung von Anthracen aus Rohanthracen | |
| DE2065477B2 (de) | Verfahren zur Abtrennung von Schwefelsäure aus einem Reaktionsgemisch. Ausscheidung aus: 2014783 |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OHJ | Non-payment of the annual fee |