GB960936A - Improvements in and relating to the treatment of phenolic effluents - Google Patents
Improvements in and relating to the treatment of phenolic effluentsInfo
- Publication number
- GB960936A GB960936A GB675162A GB675162A GB960936A GB 960936 A GB960936 A GB 960936A GB 675162 A GB675162 A GB 675162A GB 675162 A GB675162 A GB 675162A GB 960936 A GB960936 A GB 960936A
- Authority
- GB
- United Kingdom
- Prior art keywords
- liquor
- alcohols
- butanol
- solvent extraction
- pentanol
- 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
- 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
- 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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/36—Organic compounds containing halogen
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Extraction Or Liquid Replacement (AREA)
Abstract
Ammonium salts are obtained by the partial or complete evaporation of a liquor from a coal processing plant, the liquor having been acidified and then subjected to solvent extraction with an aliphatic, monohydric alcohol containing from four to six carbon atoms per molecule, or a mixture of such alcohols. Acids mentioned are hydrochloric, sulphuric and phosphoric, and alcohols mentioned are n-butanol, n-pentanol and n-hexanol. Srecification 804,544 is referred to.ALSO:A process for the dephenolation of an aqueous phenolic effluent liquor from coal processing plant comprises acidifying the liquor, e.g. by adding hydrochloric, sulphuric or phosphoric acid, and subjecting the acidified liquor to solvent extraction with an aliphatic, monohydric alcohol containing 4 to 6 carbon atoms per molecule, or a mixture of such alcohols. Alcohols mentioned are n-butanol, n-pentanol and n-hexanol. The amount of acid added should be at least sufficient to neutralize free ammonia present. After the solvent extraction step, which may be carried out in a counter-current extraction unit, the liquor may be heated to remove residual solvent and then either partly or completely evaporated to obtain the ammonium salt present, or the liquor may be subjected to biochemical oxidation followed by boiling with lime as described in Specification 804,544. Three specific examples are described in which n-butanol is employed in amounts of 60% to 70% by volume of the volume of the liquor.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB675162A GB960936A (en) | 1962-02-21 | 1962-02-21 | Improvements in and relating to the treatment of phenolic effluents |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB675162A GB960936A (en) | 1962-02-21 | 1962-02-21 | Improvements in and relating to the treatment of phenolic effluents |
Publications (1)
Publication Number | Publication Date |
---|---|
GB960936A true GB960936A (en) | 1964-06-17 |
Family
ID=9820117
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB675162A Expired GB960936A (en) | 1962-02-21 | 1962-02-21 | Improvements in and relating to the treatment of phenolic effluents |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB960936A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4406780A (en) * | 1981-08-18 | 1983-09-27 | Exxon Research And Engineering Co. | Separation and oxygen-alkylation of phenols from phenol-containing hydrocarbonaceous streams |
WO2007036500A1 (en) * | 2005-09-30 | 2007-04-05 | Basf Se | Method for treating aldolisation process waste waters |
CN113248066A (en) * | 2021-05-18 | 2021-08-13 | 顺毅宜昌化工有限公司 | Method for treating waste water of kungfu acid |
-
1962
- 1962-02-21 GB GB675162A patent/GB960936A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4406780A (en) * | 1981-08-18 | 1983-09-27 | Exxon Research And Engineering Co. | Separation and oxygen-alkylation of phenols from phenol-containing hydrocarbonaceous streams |
WO2007036500A1 (en) * | 2005-09-30 | 2007-04-05 | Basf Se | Method for treating aldolisation process waste waters |
EP2093198A1 (en) * | 2005-09-30 | 2009-08-26 | Basf Se | Method for treating waste water from aldolisation processes |
US7943047B2 (en) | 2005-09-30 | 2011-05-17 | Basf Se | Process for the treatment of wastewater from aldolization processes |
CN113248066A (en) * | 2021-05-18 | 2021-08-13 | 顺毅宜昌化工有限公司 | Method for treating waste water of kungfu acid |
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