DE69708481D1 - Verfahren zur Herstellung von sehr reinen 2,6-Dimethylnaphthalin - Google Patents

Verfahren zur Herstellung von sehr reinen 2,6-Dimethylnaphthalin

Info

Publication number
DE69708481D1
DE69708481D1 DE69708481T DE69708481T DE69708481D1 DE 69708481 D1 DE69708481 D1 DE 69708481D1 DE 69708481 T DE69708481 T DE 69708481T DE 69708481 T DE69708481 T DE 69708481T DE 69708481 D1 DE69708481 D1 DE 69708481D1
Authority
DE
Germany
Prior art keywords
dimethylnaphthalene
pure
production
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 - Lifetime
Application number
DE69708481T
Other languages
English (en)
Other versions
DE69708481T2 (de
Inventor
Makoto Takagawa
Ryusuke Sigematsu
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.)
Mitsubishi Gas Chemical Co Inc
Original Assignee
Mitsubishi Gas Chemical Co Inc
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 Mitsubishi Gas Chemical Co Inc filed Critical Mitsubishi Gas Chemical Co Inc
Application granted granted Critical
Publication of DE69708481D1 publication Critical patent/DE69708481D1/de
Publication of DE69708481T2 publication Critical patent/DE69708481T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C5/00—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
    • C07C5/22—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by isomerisation
    • C07C5/27—Rearrangement of carbon atoms in the hydrocarbon skeleton
    • C07C5/2729—Changing the branching point of an open chain or the point of substitution on a ring
    • C07C5/2732—Catalytic processes
    • C07C5/2737—Catalytic processes with crystalline alumino-silicates, e.g. molecular sieves
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/16—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation
    • C07C51/21—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen
    • C07C51/255—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of compounds containing six-membered aromatic rings without ring-splitting
    • C07C51/265—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of compounds containing six-membered aromatic rings without ring-splitting having alkyl side chains which are oxidised to carboxyl groups
    • 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
    • C07C2529/00—Catalysts comprising molecular sieves
    • C07C2529/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites, pillared clays
    • C07C2529/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • C07C2529/18—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the mordenite type
DE69708481T 1996-03-15 1997-01-29 Verfahren zur Herstellung von sehr reinen 2,6-Dimethylnaphthalin Expired - Lifetime DE69708481T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5974096 1996-03-15

Publications (2)

Publication Number Publication Date
DE69708481D1 true DE69708481D1 (de) 2002-01-10
DE69708481T2 DE69708481T2 (de) 2002-05-08

Family

ID=13121931

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69708481T Expired - Lifetime DE69708481T2 (de) 1996-03-15 1997-01-29 Verfahren zur Herstellung von sehr reinen 2,6-Dimethylnaphthalin

Country Status (5)

Country Link
US (1) US6072098A (de)
EP (1) EP0795529B1 (de)
KR (1) KR100469925B1 (de)
DE (1) DE69708481T2 (de)
ID (1) ID16207A (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI224128B (en) * 1998-12-28 2004-11-21 Hitachi Chemical Co Ltd Materials for polishing liquid for metal, polishing liquid for metal, method for preparation thereof and polishing method using the same
KR100316139B1 (ko) * 1999-01-15 2001-12-20 박호군 고순도의 2,6-디메틸나프탈렌의 분리 방법
KR100463076B1 (ko) * 2002-03-18 2004-12-23 한국화학연구원 2,6-디메틸나프탈렌의 분리정제방법
KR100621823B1 (ko) * 2004-07-21 2006-09-14 재단법인서울대학교산학협력재단 2,6-디알킬테트랄린의 제조 방법
US7576253B2 (en) * 2004-12-24 2009-08-18 Mitsubishi Gas Chemical Company, Inc. Method of separating dimethylnaphthalene isomers
KR100721442B1 (ko) * 2006-06-23 2007-05-23 주식회사 효성 이성화 반응 및 결정화 공정을 포함하는2,6-디메틸나프탈렌의 분리 및 정제 방법
CN112010727A (zh) * 2020-08-31 2020-12-01 辽宁科技大学 一种用于制备2,6-二甲基萘的装置及方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3173960A (en) * 1962-11-29 1965-03-16 Sun Oil Co Purification of high melting dimethyl naphthalenes
US3590091A (en) * 1968-08-16 1971-06-29 Sun Oil Co Crystallization and purification of 2,6-dmn
US3649708A (en) * 1969-10-16 1972-03-14 Republic Steel Corp Purification of naphthalene
US3888938A (en) * 1973-05-26 1975-06-10 Teijin Ltd Process for obtaining 2,6-dimethylnaphthalene-rich or 2,7-dimethylnaphthalene-rich product
JPS5724331B2 (de) * 1973-05-31 1982-05-24
JPS50108247A (de) * 1974-02-08 1975-08-26
DE3531559A1 (de) * 1985-09-04 1987-03-05 Ruetgerswerke Ag Verfahren zur gewinnung von 2,6-dialkylisomeren des naphthalins aus dem isomerengemisch derselben
JP2885260B2 (ja) * 1993-04-01 1999-04-19 三菱瓦斯化学株式会社 ジメチルナフタレンの異性化方法
US5510563A (en) * 1993-12-29 1996-04-23 Amoco Corporation Crystallizaiton of 2,6-dimethylnaphthalene
US5948949A (en) * 1996-02-28 1999-09-07 Mitsubishi Gas Chemical Company, Inc. Process for producing 2,6-dimethylnaphthalene

Also Published As

Publication number Publication date
EP0795529B1 (de) 2001-11-28
US6072098A (en) 2000-06-06
KR970065489A (ko) 1997-10-13
DE69708481T2 (de) 2002-05-08
EP0795529A1 (de) 1997-09-17
ID16207A (id) 1997-09-11
KR100469925B1 (ko) 2005-04-28

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