FR2252990A1 - - Google Patents
Info
- Publication number
- FR2252990A1 FR2252990A1 FR7342828A FR7342828A FR2252990A1 FR 2252990 A1 FR2252990 A1 FR 2252990A1 FR 7342828 A FR7342828 A FR 7342828A FR 7342828 A FR7342828 A FR 7342828A FR 2252990 A1 FR2252990 A1 FR 2252990A1
- Authority
- FR
- France
- Prior art keywords
- phenols
- solution
- acid
- nov
- extracting
- 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.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/26—Treatment of water, waste water, or sewage by extraction
-
- 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
- C07C37/005—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by obtaining phenols from products, waste products or side-products of processes, not directed to the production of phenols, by conversion or working-up
- C07C37/009—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by obtaining phenols from products, waste products or side-products of processes, not directed to the production of phenols, by conversion or working-up from waste water
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Removal Of Specific Substances (AREA)
- Extraction Or Liquid Replacement (AREA)
Abstract
1492606 Removing phenols from wastewater COMMISSARIAT A L'ENERGIE ATOMIQUE 29 Nov 1974 [30 Nov 1973] 51720/74 Heading C lC Phenols are removed from aqueous waste liquors containing them by (a) extracting at an acid pH with an organophosphate solvent diluted in a hydrocarbon, (b) extracting the phenols from the solvent with alkali solution, (c) precipitating phenols from the resultant phenate solution by the addition of acid and (d) separating the solution from the phenols. The acid solution from (d) is preferably recycled to a point upstream of stage (a). The specified organophosphate is tributyl phosphate diluted in n-heptane.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7342828A FR2252990B1 (en) | 1973-11-30 | 1973-11-30 | |
BE150597A BE822297A (en) | 1973-11-30 | 1974-11-18 | PHENOLIC WATER TREATMENT PROCESS |
CH1574174A CH593212A5 (en) | 1973-11-30 | 1974-11-27 | |
GB5172074A GB1492606A (en) | 1973-11-30 | 1974-11-29 | Treatment of phenolic effluents |
ES432447A ES432447A1 (en) | 1973-11-30 | 1974-11-29 | Treatment of phenolic effluents |
IT7048474A IT1024945B (en) | 1973-11-30 | 1974-11-29 | PROCEDURE FOR THE PURIFICATION OF PHENOLIC WATER |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7342828A FR2252990B1 (en) | 1973-11-30 | 1973-11-30 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2252990A1 true FR2252990A1 (en) | 1975-06-27 |
FR2252990B1 FR2252990B1 (en) | 1978-09-29 |
Family
ID=9128550
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7342828A Expired FR2252990B1 (en) | 1973-11-30 | 1973-11-30 |
Country Status (6)
Country | Link |
---|---|
BE (1) | BE822297A (en) |
CH (1) | CH593212A5 (en) |
ES (1) | ES432447A1 (en) |
FR (1) | FR2252990B1 (en) |
GB (1) | GB1492606A (en) |
IT (1) | IT1024945B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4818410B1 (en) * | 1988-01-14 | 1998-06-30 | Petrolite Corp | Method of removing water soluble organics from oil process water |
-
1973
- 1973-11-30 FR FR7342828A patent/FR2252990B1/fr not_active Expired
-
1974
- 1974-11-18 BE BE150597A patent/BE822297A/en unknown
- 1974-11-27 CH CH1574174A patent/CH593212A5/xx not_active IP Right Cessation
- 1974-11-29 GB GB5172074A patent/GB1492606A/en not_active Expired
- 1974-11-29 ES ES432447A patent/ES432447A1/en not_active Expired
- 1974-11-29 IT IT7048474A patent/IT1024945B/en active
Also Published As
Publication number | Publication date |
---|---|
GB1492606A (en) | 1977-11-23 |
FR2252990B1 (en) | 1978-09-29 |
BE822297A (en) | 1975-03-14 |
IT1024945B (en) | 1978-07-20 |
ES432447A1 (en) | 1977-04-16 |
CH593212A5 (en) | 1977-11-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |