GB1384948A - Method of recovering pure aromatics from mixtures thereof with non- aromatics - Google Patents

Method of recovering pure aromatics from mixtures thereof with non- aromatics

Info

Publication number
GB1384948A
GB1384948A GB1944272A GB1944272A GB1384948A GB 1384948 A GB1384948 A GB 1384948A GB 1944272 A GB1944272 A GB 1944272A GB 1944272 A GB1944272 A GB 1944272A GB 1384948 A GB1384948 A GB 1384948A
Authority
GB
United Kingdom
Prior art keywords
aromatic hydrocarbons
aromatics
solvent
distillation
subjecting
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
GB1944272A
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.)
GEA Group AG
Original Assignee
Metallgesellschaft AG
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 Metallgesellschaft AG filed Critical Metallgesellschaft AG
Publication of GB1384948A publication Critical patent/GB1384948A/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
    • 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
    • C07C7/04—Purification; Separation; Use of additives by distillation
    • C07C7/05—Purification; Separation; Use of additives by distillation with the aid of auxiliary compounds
    • C07C7/08—Purification; Separation; Use of additives by distillation with the aid of auxiliary compounds by extractive distillation
    • 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
    • C10G7/00—Distillation of hydrocarbon oils
    • C10G7/08—Azeotropic or extractive distillation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)

Abstract

1384948 Purifying aromatic hydrocarbons METALLGESELLSCHAFT AG 26 April 1972 [7 May 1971] 19442/72 Heading C5E Pure aromatic hydrocarbons are recovered from mixture with non-aromatic hydrocarbons by (a) subjecting the mixture to a preliminary distillation, under reflux, and in the presence of a single anhydrous selective solvent which has a boiling point above the boiling range of the aromatic hydrocarbons, to provide a solventcontaining bottoms fraction having an enriched aromatics content and (b) subjecting this fraction to solvent extraction and/or extractive distillation with a selective solvent having a boiling point above the boiling range of the aromatic hydrocarbons. The solvent used in (a) may be tapped from recirculating solvent used in (b). An example describes the recovery of pure xylene from a crude mixture containing C 7 -C 9 aliphatic and toluene impurities using N-methylpyrrolidone as selective solvent in the preliminary distillation (a) and the extractive distillation (b).
GB1944272A 1971-05-07 1972-04-26 Method of recovering pure aromatics from mixtures thereof with non- aromatics Expired GB1384948A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712122770 DE2122770C3 (en) 1971-05-07 1971-05-07 Process for obtaining pure aromatic hydrocarbons from their mixtures with non-aromatic hydrocarbons

Publications (1)

Publication Number Publication Date
GB1384948A true GB1384948A (en) 1975-02-26

Family

ID=5807243

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1944272A Expired GB1384948A (en) 1971-05-07 1972-04-26 Method of recovering pure aromatics from mixtures thereof with non- aromatics

Country Status (5)

Country Link
BE (1) BE782970A (en)
DE (1) DE2122770C3 (en)
FR (1) FR2137556B1 (en)
GB (1) GB1384948A (en)
NL (1) NL173845C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106220468A (en) * 2016-07-25 2016-12-14 江阴市五洋化工有限公司 The method of the integrated continuous preparation series alkyls solvent naphtha of side line rectification and equipment thereof

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2263344C2 (en) * 1972-12-23 1983-12-01 Metallgesellschaft Ag, 6000 Frankfurt Process for the production of pure aromatics from hydrocarbon mixtures by extractive distillation
DE2833195C2 (en) * 1978-07-28 1980-10-02 Basf Ag, 6700 Ludwigshafen Process for the production of butadiene from

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1468315A1 (en) * 1964-03-28 1968-11-28 Metallgesellschaft Ag Process for the production of pure aromatics from aromatic hydrocarbon mixtures
DE1543107C3 (en) * 1965-03-18 1974-03-21 Heinrich Koppers Gmbh, 4300 Essen Process for the separation of pure aromatics from mixtures of aromatics with non-aromatics with the aid of extractive distillation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106220468A (en) * 2016-07-25 2016-12-14 江阴市五洋化工有限公司 The method of the integrated continuous preparation series alkyls solvent naphtha of side line rectification and equipment thereof
CN106220468B (en) * 2016-07-25 2018-10-16 江阴市五洋化工有限公司 The integrated continuous method and its equipment for preparing serial alkyls solvent naphtha of side line rectifying

Also Published As

Publication number Publication date
NL173845C (en) 1984-03-16
NL7204679A (en) 1972-11-09
FR2137556B1 (en) 1976-08-06
BE782970A (en) 1972-09-01
DE2122770B2 (en) 1978-04-06
FR2137556A1 (en) 1972-12-29
DE2122770C3 (en) 1984-01-26
DE2122770A1 (en) 1972-11-23

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee