GB908079A - Extraction of phenols from neutral hydrocarbon oils - Google Patents

Extraction of phenols from neutral hydrocarbon oils

Info

Publication number
GB908079A
GB908079A GB42263/58A GB4226358A GB908079A GB 908079 A GB908079 A GB 908079A GB 42263/58 A GB42263/58 A GB 42263/58A GB 4226358 A GB4226358 A GB 4226358A GB 908079 A GB908079 A GB 908079A
Authority
GB
United Kingdom
Prior art keywords
extractant
phenols
mixture
solution
oils
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
GB42263/58A
Inventor
Georg Kowalski
Helmut Fritzsche
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.)
KARL FRIEDRICH STILL
Original Assignee
KARL FRIEDRICH STILL
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 KARL FRIEDRICH STILL filed Critical KARL FRIEDRICH STILL
Publication of GB908079A publication Critical patent/GB908079A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10C—WORKING-UP PITCH, ASPHALT, BITUMEN, TAR; PYROLIGNEOUS ACID
    • C10C1/00—Working-up tar
    • C10C1/18—Working-up tar by extraction with selective solvents
    • 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
    • C07C37/007—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 the tar industry
    • 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

Abstract

Phenols are extracted from tars, tar oils and other hydrocarbon oils by means of an amide, e.g. urea or acetamide, thiourea or guanidine. Addition compounds are formed between the phenols and the extractant. The extractant is advantageously employed in aqueous solution. The extraction is improved by the addition of paraffic or naphthenic hydrocarbons. In an example, a mixture of tar oil (containing 40% of phenol) and Fischer-Tropsch kogasin, which mixture had a boiling-range of 180 DEG -230 DEG C., was shaken for 5 seconds at 32 DEG C., with a solution containing 90 grms. of urea per 100 c.c. of water. The mixture was then allowed to separate into two layers; and the raffinate was extracted, at 20 DEG C., with fresh urea solution. The raffinate was then free from phenol; and the extract contained no hydrocarbon or other impurities. The addition compounds may be decomposed by heat into free phenols and recovered extractant. The extractant solution may be purified by treating it with a solid of large surface area, e.g. activated carbon, bleaching - earth, ion-exchangers, silica gel and pumice; and a suitable apparatus for this purpose is described wherein active carbon is carried along in a stream of the solution. In another embodiment of the process, the extractant is first used to extract aliphatics from a mixture of hydrocarbons boiling below 200 DEG C., and the extractant-aliphatic hydrocarbon addition compound is then used to extract phenols from higher-boiling oils. The aliphatics remain in the dephenolated oil, and may be recovered therefrom by rectification.
GB42263/58A 1958-07-25 1958-12-31 Extraction of phenols from neutral hydrocarbon oils Expired GB908079A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1218676X 1958-07-25

Publications (1)

Publication Number Publication Date
GB908079A true GB908079A (en) 1962-10-17

Family

ID=7733781

Family Applications (1)

Application Number Title Priority Date Filing Date
GB42263/58A Expired GB908079A (en) 1958-07-25 1958-12-31 Extraction of phenols from neutral hydrocarbon oils

Country Status (2)

Country Link
FR (1) FR1218676A (en)
GB (1) GB908079A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4418221A (en) * 1981-03-19 1983-11-29 Koei Chemical Co., Ltd. Process for treating aqueous solutions containing phenols
EP0097048A2 (en) * 1982-06-14 1983-12-28 E.I. Du Pont De Nemours And Company Production of optically anisotropic pitches
CN102585870A (en) * 2012-02-15 2012-07-18 中国矿业大学 Method for quickly separating chain hydrocarbon and phenols from medium and low temperature tar
CN104324519A (en) * 2014-11-04 2015-02-04 中国科学院过程工程研究所 Method for directly separating phenols from coal pyrolytic oil

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111547913A (en) * 2019-12-16 2020-08-18 昆山美淼环保科技有限公司 Method for recovering phenol from phenol-containing wastewater

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4418221A (en) * 1981-03-19 1983-11-29 Koei Chemical Co., Ltd. Process for treating aqueous solutions containing phenols
EP0097048A2 (en) * 1982-06-14 1983-12-28 E.I. Du Pont De Nemours And Company Production of optically anisotropic pitches
EP0097048A3 (en) * 1982-06-14 1984-02-22 Exxon Research And Engineering Company Production of optically anisotropic pitches
CN102585870A (en) * 2012-02-15 2012-07-18 中国矿业大学 Method for quickly separating chain hydrocarbon and phenols from medium and low temperature tar
CN102585870B (en) * 2012-02-15 2013-10-30 中国矿业大学 Method for quickly separating chain hydrocarbon and phenols from medium and low temperature tar
CN104324519A (en) * 2014-11-04 2015-02-04 中国科学院过程工程研究所 Method for directly separating phenols from coal pyrolytic oil

Also Published As

Publication number Publication date
FR1218676A (en) 1960-05-12

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