DE3761819D1 - Verfahren zur herstellung von 2,5-dichlorotoluol. - Google Patents

Verfahren zur herstellung von 2,5-dichlorotoluol.

Info

Publication number
DE3761819D1
DE3761819D1 DE8787306931T DE3761819T DE3761819D1 DE 3761819 D1 DE3761819 D1 DE 3761819D1 DE 8787306931 T DE8787306931 T DE 8787306931T DE 3761819 T DE3761819 T DE 3761819T DE 3761819 D1 DE3761819 D1 DE 3761819D1
Authority
DE
Germany
Prior art keywords
dichlorotoluol
producing
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 - Fee Related
Application number
DE8787306931T
Other languages
English (en)
Inventor
Masashi Ohtsuru
Toshio Hozumi
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.)
Kureha Corp
Original Assignee
Kureha Corp
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 Kureha Corp filed Critical Kureha Corp
Application granted granted Critical
Publication of DE3761819D1 publication Critical patent/DE3761819D1/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C25/00—Compounds containing at least one halogen atom bound to a six-membered aromatic ring
    • C07C25/02—Monocyclic aromatic halogenated hydrocarbons
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00—Preparation of halogenated hydrocarbons
    • C07C17/093—Preparation of halogenated hydrocarbons by replacement by halogens
    • C07C17/10—Preparation of halogenated hydrocarbons by replacement by halogens of hydrogen atoms
    • C07C17/12—Preparation of halogenated hydrocarbons by replacement by halogens of hydrogen atoms in the ring of aromatic compounds
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00—Preparation of halogenated hydrocarbons
    • C07C17/361—Preparation of halogenated hydrocarbons by reactions involving a decrease in the number of carbon atoms
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/582—Recycling of unreacted starting or intermediate materials

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Catalysts (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
DE8787306931T 1986-08-05 1987-08-05 Verfahren zur herstellung von 2,5-dichlorotoluol. Expired - Fee Related DE3761819D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61183644A JPS6339828A (ja) 1986-08-05 1986-08-05 ２，５−ジクロロトルエンの製造方法

Publications (1)

Publication Number Publication Date
DE3761819D1 true DE3761819D1 (de) 1990-04-12

Family

ID=16139397

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8787306931T Expired - Fee Related DE3761819D1 (de) 1986-08-05 1987-08-05 Verfahren zur herstellung von 2,5-dichlorotoluol.

Country Status (4)

Country Link
US (1) US4822928A (de)
EP (1) EP0257866B1 (de)
JP (1) JPS6339828A (de)
DE (1) DE3761819D1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03135929A (ja) * 1989-10-23 1991-06-10 Kureha Chem Ind Co Ltd ２，５‐ジクロルトルエン及び２，６‐ジクロルトルエンを並行的に製造する方法
US5030777A (en) * 1989-10-31 1991-07-09 Standard Chlorine Of Delaware, Inc. Synthesis of 3,5-dichloroalkylbenzene and recovery of 1,3-dichlorobenzene
JPH08337543A (ja) * 1995-06-13 1996-12-24 Kureha Chem Ind Co Ltd ２，６−ジクロロ−３，５−ジ（第２級もしくは、第３級アルキル）トルエンの製造方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4010214A (en) * 1975-02-04 1977-03-01 Hooker Chemicals & Plastics Corporation Process for the preparation of 2,5-dichloro-p-xylene
DE2523104C3 (de) * 1975-05-24 1978-08-24 Bayer Ag, 5090 Leverkusen Verfahren zur Herstellung von 2,5-Dichlortoluol
SU529147A1 (ru) * 1975-07-18 1976-09-25 Предприятие П/Я Г-4684 Способ получени хлорированных 3,5-ди-трет-бутилтолуолов
US4031146A (en) * 1976-03-22 1977-06-21 Tenneco Chemicals, Inc. Process for the production of 2,5-dichlorotoluene
US4059642A (en) * 1976-07-22 1977-11-22 The Dow Chemical Company Preferential alkylation or acylation of meta-disubstituted benzenes
JPS5585683A (en) * 1978-12-22 1980-06-27 Kureha Chem Ind Co Ltd Preparation of p-chlorotoluene
US4329524A (en) * 1979-06-22 1982-05-11 The Dow Chemical Company Separation of 3,5-dichlorocumene from a mixture of 3,5-dichlorocumene and 2,4-dichlorocumene
JPS6136234A (ja) * 1984-07-30 1986-02-20 Nitto Chem Ind Co Ltd ジクロルトルエンの製造方法
JPS61268637A (ja) * 1985-05-23 1986-11-28 Kureha Chem Ind Co Ltd ジクロロベンゼン異性体混合物からパラ体を分離する方法

Also Published As

Publication number Publication date
US4822928A (en) 1989-04-18
EP0257866B1 (de) 1990-03-07
JPH0420413B2 (de) 1992-04-02
EP0257866A1 (de) 1988-03-02
JPS6339828A (ja) 1988-02-20

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee