GB1158260A - Method of Separating Benzene from Mixtures Additionally Containing Paraffinic and Naphthenic Hydrocarbons. - Google Patents

Method of Separating Benzene from Mixtures Additionally Containing Paraffinic and Naphthenic Hydrocarbons.

Info

Publication number
GB1158260A
GB1158260A GB5801266A GB5801266A GB1158260A GB 1158260 A GB1158260 A GB 1158260A GB 5801266 A GB5801266 A GB 5801266A GB 5801266 A GB5801266 A GB 5801266A GB 1158260 A GB1158260 A GB 1158260A
Authority
GB
United Kingdom
Prior art keywords
benzene
extractor
phase
paraffinic
hydrocarbons
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
GB5801266A
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.)
Societa Italiana Resine SpA SIR
Original Assignee
Societa Italiana Resine SpA SIR
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 Societa Italiana Resine SpA SIR filed Critical Societa Italiana Resine SpA SIR
Publication of GB1158260A publication Critical patent/GB1158260A/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
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G21/00—Refining of hydrocarbon oils, in the absence of hydrogen, by extraction with selective solvents
    • C10G21/06—Refining of hydrocarbon oils, in the absence of hydrogen, by extraction with selective solvents characterised by the solvent used
    • C10G21/12—Organic compounds only
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C7/00—Purification; Separation; Use of additives
    • C07C7/005—Processes comprising at least two steps in series
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C7/00—Purification; Separation; Use of additives
    • C07C7/10—Purification; Separation; Use of additives by extraction, i.e. purification or separation of liquid hydrocarbons with the aid of liquids
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G21/00—Refining of hydrocarbon oils, in the absence of hydrogen, by extraction with selective solvents

Abstract

1,158,260. Benzene; paraffinic hydrocarbons. SOC. ITALIANA RESINE S.p.A. 28 Dec., 1966 [31 Dec., 1965], No. 58012/66. Heading C5E. Benzene is separated from a mixture of liquid hydrocarbons additionally containing paraffinic and naphthenic hydrocarbons by introducing the mixture into a multi-stage extractor at an elevated temperature countercurrent to an organic solvent, drawing from the extractor an aromatic-rich liquid extract and a non-aromatic-rich liquid raffinate, cooling the extract to a temperature lower by at least 50‹ C. than the temperature in the extractor and separating it into a bottom phase and atop phase in a decanter, recycling the bottom phase (mainly solvent) to the extractor, azeotropically distilling the top phase (mainly benzene) with acetone, and recovering benzene from the distillation residue. Suitable solvents are diethylene glycol, dipropylene glycol, and sulpholane, and preferably contain 2-15% water as an anti-solvent. The top (benzene) phase from the decanter may be partially recycled to the extractor bottom. The acetone/paraffinic azeotrope may be water-washed to recover the acetone, which may be re-used. Benzene recovery from the azeotropic distillation residue is by rectification. In an example, nitration grade benzene is recovered from a hydrogenated reforming petrol cut, the paraffinic hydrocarbons also being recovered.
GB5801266A 1965-12-31 1966-12-28 Method of Separating Benzene from Mixtures Additionally Containing Paraffinic and Naphthenic Hydrocarbons. Expired GB1158260A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2923665 1965-12-31

Publications (1)

Publication Number Publication Date
GB1158260A true GB1158260A (en) 1969-07-16

Family

ID=11226596

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5801266A Expired GB1158260A (en) 1965-12-31 1966-12-28 Method of Separating Benzene from Mixtures Additionally Containing Paraffinic and Naphthenic Hydrocarbons.

Country Status (2)

Country Link
FR (1) FR1510251A (en)
GB (1) GB1158260A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2477568A1 (en) * 1980-03-07 1981-09-11 Texaco Development Corp SOLVENT REFINING PROCESS OF KEROSENE LUBRICATING OIL

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2477568A1 (en) * 1980-03-07 1981-09-11 Texaco Development Corp SOLVENT REFINING PROCESS OF KEROSENE LUBRICATING OIL

Also Published As

Publication number Publication date
FR1510251A (en) 1968-01-19

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Legal Events

Date Code Title Description
PS Patent sealed
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PCNP Patent ceased through non-payment of renewal fee