GB450789A - Process for the removal of phenols from aqueous liquors - Google Patents

Process for the removal of phenols from aqueous liquors

Info

Publication number
GB450789A
GB450789A GB1801535A GB1801535A GB450789A GB 450789 A GB450789 A GB 450789A GB 1801535 A GB1801535 A GB 1801535A GB 1801535 A GB1801535 A GB 1801535A GB 450789 A GB450789 A GB 450789A
Authority
GB
United Kingdom
Prior art keywords
oils
liquors
phenols
hydrogenated
coal
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
Application number
GB1801535A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
INT HYDROGENATION PATENTS CO
International Hydrogenation Patents Co Ltd
Original Assignee
INT HYDROGENATION PATENTS CO
International Hydrogenation Patents Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by INT HYDROGENATION PATENTS CO, International Hydrogenation Patents Co Ltd filed Critical INT HYDROGENATION PATENTS CO
Priority to GB1801535A priority Critical patent/GB450789A/en
Publication of GB450789A publication Critical patent/GB450789A/en
Expired legal-status Critical Current

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
    • C07C37/005—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

Abstract

Phenols are removed or recovered from aqueous liquors containing them by subjecting said liquors to extraction with hydrogenated oils, such liquors being treated as do not form a homogeneous solution in the hydrogenated oils, and separating the two layers formed. The phenols may be recovered from the solution in the oils in known manner, e.g. by washing out with alkali lye or by distillation, after which the hydrogenated oil may be used again. Suitable hydrogenated oils are those obtainable by hydrogenation of tar oils, e.g. those produced by carbonization of bituminous coals, or of acid oils, such as are obtained in the dry distillation of the resins formed in the refining of crude benzol by means of sulphuric acid. The process is applicable to the treatment of waste liquors containing phenols of any origin, e.g. from coke plants, coal tar distillation plants or brown coal low temperature distillation plants, and particularly to the treatment of aqueous waste liquors obtained in the destructive hydrogenation of coal and like distillable carbonaceous materials. In an example, waste water from the destructive hydrogenation of coal is stirred with an equal quantity of hydrogenated wash oil boiling at 220--350 DEG C., and the upper layer is extracted with aqueous sodium hydroxide to obtain sodium phenolate.
GB1801535A 1935-06-24 1935-06-24 Process for the removal of phenols from aqueous liquors Expired GB450789A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1801535A GB450789A (en) 1935-06-24 1935-06-24 Process for the removal of phenols from aqueous liquors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1801535A GB450789A (en) 1935-06-24 1935-06-24 Process for the removal of phenols from aqueous liquors

Publications (1)

Publication Number Publication Date
GB450789A true GB450789A (en) 1936-07-24

Family

ID=10105165

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1801535A Expired GB450789A (en) 1935-06-24 1935-06-24 Process for the removal of phenols from aqueous liquors

Country Status (1)

Country Link
GB (1) GB450789A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2937139A (en) * 1956-03-13 1960-05-17 Gulf Oil Corp Purification of hydrocarbons by extraction with phenolic materials
US2999808A (en) * 1957-12-26 1961-09-12 Universal Oil Prod Co Waste water treatment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2937139A (en) * 1956-03-13 1960-05-17 Gulf Oil Corp Purification of hydrocarbons by extraction with phenolic materials
US2999808A (en) * 1957-12-26 1961-09-12 Universal Oil Prod Co Waste water treatment

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