GB983473A - Purification of high melting dimethyl naphthalene - Google Patents

Purification of high melting dimethyl naphthalene

Info

Publication number
GB983473A
GB983473A GB3426863A GB3426863A GB983473A GB 983473 A GB983473 A GB 983473A GB 3426863 A GB3426863 A GB 3426863A GB 3426863 A GB3426863 A GB 3426863A GB 983473 A GB983473 A GB 983473A
Authority
GB
United Kingdom
Prior art keywords
crystals
solvent
dissolving
separating
alcohol
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
GB3426863A
Inventor
William Martin Robinson
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 GB3426863A priority Critical patent/GB983473A/en
Publication of GB983473A publication Critical patent/GB983473A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C7/00—Purification; Separation; Use of additives
    • C07C7/14—Purification; Separation; Use of additives by crystallisation; Purification or separation of the crystals

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

A dimethylnaphthalene (DMN) mixture melting in the range 100-110.5 DEG C. is obtained from an aromatic hydrocarbon mixture containing DMN by dissolving in a solvent capable of dissolving at least 1 g. of aromatic hydrocarbon boiling in the range 495-510 DEG F. per 10 ml. of solvent at 25 DEG C., crystallizing at at 0 DEG to - 60 DEG C., separating the crystals, warming to 5-50 DEG C. and separating the melt from the crystals which are recovered as product. Preferably the crystals are recrystallized from the same or a similar solvent at 0 DEG to - 60 DEG C. and the crystals may again be partially melted at room temperature. Crystals may be washed at any stage with solvent. Suitable solvents are aliphatic hydrocarbons, e.g. propane, isobutane, n-pentane, n-hexane, heptanes or mixtures thereof with alcohols, e.g. methyl, ethyl, isopropyl, n-butyl, amyl alcohols containing 0-75% by volume of alcohol. A ketone, e.g. acetone or methyl isobutyl ketone may be used with or instead of the alcohol.
GB3426863A 1963-08-29 1963-08-29 Purification of high melting dimethyl naphthalene Expired GB983473A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3426863A GB983473A (en) 1963-08-29 1963-08-29 Purification of high melting dimethyl naphthalene

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3426863A GB983473A (en) 1963-08-29 1963-08-29 Purification of high melting dimethyl naphthalene

Publications (1)

Publication Number Publication Date
GB983473A true GB983473A (en) 1965-02-17

Family

ID=10363525

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3426863A Expired GB983473A (en) 1963-08-29 1963-08-29 Purification of high melting dimethyl naphthalene

Country Status (1)

Country Link
GB (1) GB983473A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1852409A1 (en) * 2006-05-01 2007-11-07 Hyosung Corporation Method for separating and purifying 2,6-dimethylnaphthalene

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1852409A1 (en) * 2006-05-01 2007-11-07 Hyosung Corporation Method for separating and purifying 2,6-dimethylnaphthalene

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