GB517618A - Improvements in the recovery of phenols from oils and waste aqueous liquors - Google Patents

Improvements in the recovery of phenols from oils and waste aqueous liquors

Info

Publication number
GB517618A
GB517618A GB2236138A GB2236138A GB517618A GB 517618 A GB517618 A GB 517618A GB 2236138 A GB2236138 A GB 2236138A GB 2236138 A GB2236138 A GB 2236138A GB 517618 A GB517618 A GB 517618A
Authority
GB
United Kingdom
Prior art keywords
phenols
extract
oils
waste aqueous
water
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
GB2236138A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB2236138A priority Critical patent/GB517618A/en
Publication of GB517618A publication Critical patent/GB517618A/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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

517,618. Phenol recovery. JOHNSON, G. W. (I.G. Farbenindustrie Akt.-Ges.). July 27,1938, No. 22361. [Class 2 (iii)] Phenols are removed from oils and waste aqueous liquors by first extracting the oil at elevated temperature and pressure with a waste aqueous liquor containing phenols, separating the extract by cooling into water and water containing phenols and finally treating the latter with known, extraction or adsorption agents for phenols, e.g., tricresyl phosphate, benzene or active carbon. Thus, oils obtained from the distillation of coal' or tar, coking, low temperature carbonization, destructive hydrogenation or solvent extraction are mixed in the ratio of 1:¢ to 1:5 with the waste aqueous liquors to be freed from phenols and heated to 200-280‹ C. at 30-80 atmospheres ; the aqueous extract is first separated at the prevailing pressure and then cooled to give two layers of which one consists mainly of phenols and the other of water containing 10-15 grams of phenols per litre, from which the .phenols are extracted in known manner with organic solvents or adsorbents. The layer formation is assisted by the addition of readily boiling hydrocarbons before or after the cooling. A part of the water separating from the extract may be freed from phenols as described, and the remainder returned in circulation to the extraction vessel. Examples are given.
GB2236138A 1938-07-27 1938-07-27 Improvements in the recovery of phenols from oils and waste aqueous liquors Expired GB517618A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2236138A GB517618A (en) 1938-07-27 1938-07-27 Improvements in the recovery of phenols from oils and waste aqueous liquors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2236138A GB517618A (en) 1938-07-27 1938-07-27 Improvements in the recovery of phenols from oils and waste aqueous liquors

Publications (1)

Publication Number Publication Date
GB517618A true GB517618A (en) 1940-02-05

Family

ID=10178137

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2236138A Expired GB517618A (en) 1938-07-27 1938-07-27 Improvements in the recovery of phenols from oils and waste aqueous liquors

Country Status (1)

Country Link
GB (1) GB517618A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2888491A (en) * 1956-10-03 1959-05-26 Metallgesellschaft Ag Separation of phenols from their mixtures with neutral oils
US3261872A (en) * 1960-12-02 1966-07-19 Still Fa Carl Process for extracting acid substances such as phenols, thiophenols and/or their homologs from nonaqueous mixtures containing them
WO2005005359A1 (en) * 2003-06-20 2005-01-20 Sunoco, Inc. (R & M) Method for recovery of phenol from aqueous streams

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2888491A (en) * 1956-10-03 1959-05-26 Metallgesellschaft Ag Separation of phenols from their mixtures with neutral oils
US3261872A (en) * 1960-12-02 1966-07-19 Still Fa Carl Process for extracting acid substances such as phenols, thiophenols and/or their homologs from nonaqueous mixtures containing them
WO2005005359A1 (en) * 2003-06-20 2005-01-20 Sunoco, Inc. (R & M) Method for recovery of phenol from aqueous streams

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