GB1514702A - Method of purifying alkylphenols - Google Patents
Method of purifying alkylphenolsInfo
- Publication number
- GB1514702A GB1514702A GB11313/77A GB1131377A GB1514702A GB 1514702 A GB1514702 A GB 1514702A GB 11313/77 A GB11313/77 A GB 11313/77A GB 1131377 A GB1131377 A GB 1131377A GB 1514702 A GB1514702 A GB 1514702A
- Authority
- GB
- United Kingdom
- Prior art keywords
- crystals
- washing
- alkylphenol
- alkylphenols
- rate
- 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
- 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)
- Cleaning Or Drying Semiconductors (AREA)
- Detergent Compositions (AREA)
Abstract
1514702 Purification of alkylphenols STERLITAMAX OPYTNO PROMYSH NEFTEKHIMISCHE ZAVOD and NOVOKUIBYSHEV FILIAL GIPROKAUCHUKA 17 March 1977 [17 March 1976] 11313/77 Heading C2C A method of purifying an alkylphenol from impurities contained therein, comprises effecting continuous crystallization of alkylphenol fed at a rate of from 0À12 to 0À31 hr<SP>-1</SP> and washing the resulting crystals in a layer formed by the said crystals and moving downwards at a rate of from 0À1 to 1À0 hr<SP>-1</SP>, washing being performed with a solvent inert towards alkylphenol and moving in counterflow to the crystals at a rate of from 0À09 to 0À35 hr<SP>-1</SP>, and wherein the said washing is carried out in a washing element in the form of a vertical tube in which the crystals of alkylphenols are maintained in the form of a movable bed, the dimension of the same vertical tube being such that the ratio of the height of the moving layer of the crystals to the diameter of the crystal bed is at least 3.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU762334592A SU622257A1 (en) | 1976-03-17 | 1976-03-17 | Alkylphelol purifying method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1514702A true GB1514702A (en) | 1978-06-21 |
Family
ID=20652312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB11313/77A Expired GB1514702A (en) | 1976-03-17 | 1977-03-17 | Method of purifying alkylphenols |
Country Status (16)
| Country | Link |
|---|---|
| JP (1) | JPS52131536A (en) |
| AT (1) | AT350524B (en) |
| BE (1) | BE852507A (en) |
| BR (1) | BR7701639A (en) |
| DE (1) | DE2711712A1 (en) |
| DK (1) | DK115177A (en) |
| ES (1) | ES456964A1 (en) |
| FI (1) | FI770849A (en) |
| FR (1) | FR2344516A1 (en) |
| GB (1) | GB1514702A (en) |
| IE (1) | IE44061B1 (en) |
| NL (1) | NL7702863A (en) |
| NO (1) | NO770936L (en) |
| PT (1) | PT66309B (en) |
| SE (1) | SE7702987L (en) |
| SU (1) | SU622257A1 (en) |
-
1976
- 1976-03-17 SU SU762334592A patent/SU622257A1/en active
-
1977
- 1977-03-14 AT AT172477A patent/AT350524B/en not_active IP Right Cessation
- 1977-03-16 BE BE175815A patent/BE852507A/en unknown
- 1977-03-16 IE IE577/77A patent/IE44061B1/en unknown
- 1977-03-16 FR FR7707853A patent/FR2344516A1/en active Granted
- 1977-03-16 DK DK115177A patent/DK115177A/en unknown
- 1977-03-16 PT PT66309A patent/PT66309B/en unknown
- 1977-03-16 JP JP2811477A patent/JPS52131536A/en active Pending
- 1977-03-16 SE SE7702987A patent/SE7702987L/en unknown
- 1977-03-16 NL NL7702863A patent/NL7702863A/en not_active Application Discontinuation
- 1977-03-16 NO NO770936A patent/NO770936L/en unknown
- 1977-03-17 ES ES456964A patent/ES456964A1/en not_active Expired
- 1977-03-17 FI FI770849A patent/FI770849A/fi not_active Application Discontinuation
- 1977-03-17 DE DE19772711712 patent/DE2711712A1/en active Pending
- 1977-03-17 BR BR7701639A patent/BR7701639A/en unknown
- 1977-03-17 GB GB11313/77A patent/GB1514702A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| SE7702987L (en) | 1977-09-18 |
| FR2344516A1 (en) | 1977-10-14 |
| ES456964A1 (en) | 1978-02-16 |
| PT66309B (en) | 1978-08-11 |
| DK115177A (en) | 1977-09-18 |
| BE852507A (en) | 1977-09-16 |
| FR2344516B1 (en) | 1978-12-29 |
| SU622257A1 (en) | 1979-03-15 |
| DE2711712A1 (en) | 1977-09-29 |
| NL7702863A (en) | 1977-09-20 |
| BR7701639A (en) | 1977-11-08 |
| JPS52131536A (en) | 1977-11-04 |
| PT66309A (en) | 1977-04-01 |
| IE44061B1 (en) | 1981-07-29 |
| IE44061L (en) | 1977-09-17 |
| NO770936L (en) | 1977-09-20 |
| FI770849A (en) | 1977-09-18 |
| AT350524B (en) | 1979-06-11 |
| ATA172477A (en) | 1978-11-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |