GB1049748A - Preparation of naphthalene and certain dimethylnaphthalenes - Google Patents

Preparation of naphthalene and certain dimethylnaphthalenes

Info

Publication number
GB1049748A
GB1049748A GB3290863A GB3290863A GB1049748A GB 1049748 A GB1049748 A GB 1049748A GB 3290863 A GB3290863 A GB 3290863A GB 3290863 A GB3290863 A GB 3290863A GB 1049748 A GB1049748 A GB 1049748A
Authority
GB
United Kingdom
Prior art keywords
dmn
filtrate
dimethylnaphthalenes
naphthalene
fraction
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
GB3290863A
Inventor
Joseph Gerald Allen
Earl Winton Malmberg
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.)
Sunoco Inc
Original Assignee
Sun Oil Co
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 Sun Oil Co filed Critical Sun Oil Co
Priority to GB3290863A priority Critical patent/GB1049748A/en
Publication of GB1049748A publication Critical patent/GB1049748A/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
    • C10G65/00—Treatment of hydrocarbon oils by two or more hydrotreatment processes only
    • C10G65/02—Treatment of hydrocarbon oils by two or more hydrotreatment processes only plural serial stages only
    • C10G65/12—Treatment of hydrocarbon oils by two or more hydrotreatment processes only plural serial stages only including cracking steps and other hydrotreatment steps
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C15/00—Cyclic hydrocarbons containing only six-membered aromatic rings as cyclic parts
    • C07C15/20—Polycyclic condensed hydrocarbons
    • C07C15/24—Polycyclic condensed hydrocarbons containing two rings
    • 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
    • C10G2400/00—Products obtained by processes covered by groups C10G9/00 - C10G69/14
    • C10G2400/30—Aromatics

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

2,3-, 2,6- and 2,7-dimethylnaphthalenes (DMN) are obtained from a hydrodesulphurized gas oil aromatic concentrate containing aromatics boiling in the range 500-520 DEG F. are obtained by (1) distilling to obtain fractions boiling in the ranges (a) 500-509 DEG F., (b) 509-513 DEG F. and (c) 513-520 DEG F.; (2) cooling fraction (a) to crystallize 2,6- and 2,7-DMN and separating the filtrate; (3) cooling fraction (c) to crystallize 2,3-DMN and separating the filtrate and (4) isomerizing fraction (b) and the filtrates from (2) and (3) and recycling the product to step (1). Preferably, to avoid build-up of 1,2-DMN which is not isomerized, part of the filtrate from step (3) is bled off and may be dealkylated together with 400-500 DEG F., boiling material from the gas oil to obtain naphthalene. The crystals from step (2) may be partially melted leaving crystallized 2,6-DMN and a filtrate containing 2,7-DMN which may be further crystallized and partially melted.
GB3290863A 1963-08-20 1963-08-20 Preparation of naphthalene and certain dimethylnaphthalenes Expired GB1049748A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3290863A GB1049748A (en) 1963-08-20 1963-08-20 Preparation of naphthalene and certain dimethylnaphthalenes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3290863A GB1049748A (en) 1963-08-20 1963-08-20 Preparation of naphthalene and certain dimethylnaphthalenes

Publications (1)

Publication Number Publication Date
GB1049748A true GB1049748A (en) 1966-11-30

Family

ID=10345805

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3290863A Expired GB1049748A (en) 1963-08-20 1963-08-20 Preparation of naphthalene and certain dimethylnaphthalenes

Country Status (1)

Country Link
GB (1) GB1049748A (en)

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