GB822992A - Separating phenol from aqueous liquors by solvent extraction - Google Patents

Separating phenol from aqueous liquors by solvent extraction

Info

Publication number
GB822992A
GB822992A GB24754/57A GB2475457A GB822992A GB 822992 A GB822992 A GB 822992A GB 24754/57 A GB24754/57 A GB 24754/57A GB 2475457 A GB2475457 A GB 2475457A GB 822992 A GB822992 A GB 822992A
Authority
GB
United Kingdom
Prior art keywords
phenol
aqueous
cumene
phenate
solvent extraction
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
GB24754/57A
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.)
Ineos Phenol GmbH
Original Assignee
Phenolchemie GmbH and Co KG
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 Phenolchemie GmbH and Co KG filed Critical Phenolchemie GmbH and Co KG
Publication of GB822992A publication Critical patent/GB822992A/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
    • C07C37/68—Purification; separation; Use of additives, e.g. for stabilisation
    • C07C37/70—Purification; separation; Use of additives, e.g. for stabilisation by physical treatment
    • C07C37/72—Purification; separation; Use of additives, e.g. for stabilisation by physical treatment by liquid-liquid treatment

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Phenol is separated from the aqueous liquor by extraction with cumene, and the phenol is then separated from the solvent using an aqueous solution which contains more than 50% alkali phenate and a small percentage, e.g. 0.2% to 5%, of free alkali. The cumene and the aqueous phenate solution can be mixed in a tower filled with Raschig rings; but it is preferable to effect the mixing in a gear pump or in a centrifugal pump. In an example, a liquor from a technical process having a phenol content of 3.4% and a pH of 3.6 is extracted with cumene. An aqueous solution containing 53.4% of sodium phenate and 1.6% of sodium hydroxide is then used to separate the phenol from the solvent, and gives an extraction yield of 99.8%.
GB24754/57A 1956-08-06 1957-08-06 Separating phenol from aqueous liquors by solvent extraction Expired GB822992A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE822992X 1956-08-06

Publications (1)

Publication Number Publication Date
GB822992A true GB822992A (en) 1959-11-04

Family

ID=6744916

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24754/57A Expired GB822992A (en) 1956-08-06 1957-08-06 Separating phenol from aqueous liquors by solvent extraction

Country Status (1)

Country Link
GB (1) GB822992A (en)

Similar Documents

Publication Publication Date Title
GB727498A (en) The manufacture of organic hydroperoxides
GB822992A (en) Separating phenol from aqueous liquors by solvent extraction
SU575032A3 (en) Method of separating polyelectrolyte ligninosulfoacids
GB855401A (en) Improvements in or relating to the bittering of beer
GB1441778A (en) Process for removing impurities from a mixture produced by the molecular oxygen oxidation of diisopropylbenzene to its dihydroperoxide
GB928636A (en) Extraction of ribonucleic acid from yeast
GB942027A (en) Improvements in preparation of alkali metal hydrosulfites
GB861792A (en) New substituted phenol
GB1073856A (en) Production of sodium acrylate
GB783454A (en) Improvements in or relating to process of extracting sodium vanillinate
GB590907A (en) Improved process of manufacturing tanning extract from concentrated sulphite cellulose waste liquor
GB649286A (en) Manufacture of phenol
GB438434A (en) Improvements in the manufacture of cellulose
GB1377675A (en) Method of extraction of l-dopa from plant material
GB866365A (en) Trimethylolethane
GB485805A (en) Improved concentrated casein solutions having an acid reaction
GB605635A (en) Improvements in or relating to process for recovery of phenols
GB457315A (en) A process for the recovery of beryllium compounds from beryllium-containing minerals
GB1295235A (en)
GB572690A (en) Improvements relating to the removal of carbon disulphide from hydrocarbon liquids
GB953830A (en) A process for the resolution of racemic homocysteic acids
GB632079A (en) Improvement in the extraction of alumina from raw calcium aluminates
GB559893A (en) Process for the manufacture of pure, crystalline calcium-?-pantothenate
ES384210A1 (en) Procedure for direct preparation of oximes. (Machine-translation by Google Translate, not legally binding)
GB923156A (en) Improvements in or relating to the production of ethyl linoleate from poppy seed oil