GB904993A - Process for the separation of naphthalene and its derivatives from benzene and its derivatives - Google Patents

Process for the separation of naphthalene and its derivatives from benzene and its derivatives

Info

Publication number
GB904993A
GB904993A GB1067961A GB1067961A GB904993A GB 904993 A GB904993 A GB 904993A GB 1067961 A GB1067961 A GB 1067961A GB 1067961 A GB1067961 A GB 1067961A GB 904993 A GB904993 A GB 904993A
Authority
GB
United Kingdom
Prior art keywords
feed
sulpholane
naphthalenes
boiling
extract
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
GB1067961A
Inventor
Michael Nicholas Papadopoulus
Carl Hosea Deal Jr
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.)
Shell Internationale Research Maatschappij BV
Original Assignee
Shell Internationale Research Maatschappij BV
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 Shell Internationale Research Maatschappij BV filed Critical Shell Internationale Research Maatschappij BV
Publication of GB904993A publication Critical patent/GB904993A/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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General 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

Naphthalenes of differing carbon number are separated from alkyl benzenes of comparable carbon number by liquid-liquid extraction with a sulpholane type solvent to obtain an extract enriched in naphthalenes and a raffinate enriched in benzenes. The difference in carbon number between the highest and lowest hydrocarbons in the feed is preferably from 5-8; suitable feeds are obtained from coker gas oil and cycle gas oil from a catalytic cracking. The sulpholane solvent may contain alkyl substituents or polar groups containing oxygen, nitrogen, sulphur or halogen, e.g. those described in Specification 625,505. The specific gravity of the sulpholane is preferably at least 0.2 above or below that of the feed and is used in a weight ratio to feed of 0.2-2.0. In a preferred embodiment a feed e.g. boiling from 160-315 DEG C. also containing saturated hydrocarbons is distilled to obtain a fraction boiling below the naphthalene-containing feed, e.g. 160-205 DEG C., having a higher saturate content than the total feed, and a side stream, e.g. boiling from 195-235 DEG C. which is subjected to extraction, and the lower boiling fraction is used as a countersolvent in the extraction, being introduced at the end where the extract is removed. The naphthalenes are preferably recovered from the extract by a further extraction with a non-polar solvent immiscible with the sulpholane and boiling below the naphthalenes, e.g. a C1-10 paraffin, which is used in a weight ratio to extract of 0.2-2.0 and separated from the naphthalene by distillation.
GB1067961A 1961-03-27 1961-03-23 Process for the separation of naphthalene and its derivatives from benzene and its derivatives Expired GB904993A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES73177A DE1149478B (en) 1961-03-27 1961-03-27 Process for the separation of condensed diaromatic from monoaromatic hydrocarbons by means of a selective solvent

Publications (1)

Publication Number Publication Date
GB904993A true GB904993A (en) 1962-09-05

Family

ID=7503717

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1067961A Expired GB904993A (en) 1961-03-27 1961-03-23 Process for the separation of naphthalene and its derivatives from benzene and its derivatives

Country Status (2)

Country Link
DE (1) DE1149478B (en)
GB (1) GB904993A (en)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL64177C (en) * 1943-02-08
DE865171C (en) * 1948-06-08 1953-01-29 Anglo Iranian Oil Co Ltd Process for the selective extraction and extractive distillation of hydrocarbon mixtures
FR991592A (en) * 1949-08-03 1951-10-08 Anglo Iranian Oil Co Ltd Process for the separation of organic compounds, in particular hydrocarbons
US2831039A (en) * 1955-04-04 1958-04-15 Standard Oil Co Solvent extraction

Also Published As

Publication number Publication date
DE1149478B (en) 1963-05-30

Similar Documents

Publication Publication Date Title
GB1410773A (en) Hydrocarbon separation process
GB948180A (en) Process for the separation of an organic mixture containing hydrocarbons by means of extractive distillation
US2846485A (en) Production of high purity cyclohexane concentrate
GB947257A (en) Process for the separation of an organic mixture containing hydrocarbons by means ofextractive distillation
GB904993A (en) Process for the separation of naphthalene and its derivatives from benzene and its derivatives
US3725257A (en) Process of separating aromatic hydrocarbons from hydrocarbon mixtures
US2344406A (en) Refining of mineral oils
GB1308735A (en) Method of extracting aromatic hydrocarbons
US3005032A (en) Solvent extraction of naphthalenic from non-naphthalenic aromatic hydrocarbons using dimethyl sulfoxide
GB1283180A (en) A method of obtaining high-purity aromatics from hydrocarbon mixtures which in addition to said aromatics contain non-aromatics
US3038016A (en) Isoprene separation
ES381946A1 (en) Process for the extraction of aromatic hydrocarbons
US3558480A (en) Light and heavy reflux streams in solvent extraction of aromatics
GB1164372A (en) Method of Separating Aromatic Hydrocarbons from Mixtures Containing Them.
US3560374A (en) Aromatic extraction process
GB1286891A (en) Recovery of aromatic hydrocarbons from hydrocarbon mixtures by selective extraction and/or extractive distillation
US2999892A (en) Solvent extraction process
US3291727A (en) Solvent separation of monocyclic aromatic, dicyclic aromatic and non-aromatic hydrocarbons
GB1502323A (en) Process for the separation of aromatic hydrocarbons from a mixed hydrocarbon feedstock
US3132093A (en) Furfural solvent separation of aromatics from liquid mixtures
GB1391870A (en) Process for the production of highpurity aromatics by liquid- liquid extraction and or extractive distillation from hydrocarbon mixtures
US3579539A (en) Dual solvent separation of 4-hydroxy-benzothiophene from 4-oxo-4,5,6,7-tetrahydrobenzothiophene
GB1432690A (en) Process for separating high purity aromatic hydrocarbons from mixtures containing them
US3017346A (en) Solvent extraction process using dimethyl hydrogen phosphite
GB1274380A (en) Process for the separation of hydrocarbon mixtures by extractive distillation