CA927843A - Process for the continuous separation of isomer mixtures of the nitro-, chloro-, and nitrochloro-benzene and -toluene series - Google Patents

Process for the continuous separation of isomer mixtures of the nitro-, chloro-, and nitrochloro-benzene and -toluene series

Info

Publication number
CA927843A
CA927843A CA098680A CA98680A CA927843A CA 927843 A CA927843 A CA 927843A CA 098680 A CA098680 A CA 098680A CA 98680 A CA98680 A CA 98680A CA 927843 A CA927843 A CA 927843A
Authority
CA
Canada
Prior art keywords
nitrochloro
nitro
chloro
benzene
isomer mixtures
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
CA098680A
Other versions
CA98680S (en
Inventor
Herbst Horst
Bandel Wolfgang
Spies Julius
Schalles Horst
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.)
Hoechst AG
Original Assignee
Farbwerke Hoechst AG
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 Farbwerke Hoechst AG filed Critical Farbwerke Hoechst AG
Application granted granted Critical
Publication of CA927843A publication Critical patent/CA927843A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C201/00—Preparation of esters of nitric or nitrous acid or of compounds containing nitro or nitroso groups bound to a carbon skeleton
    • C07C201/06—Preparation of nitro compounds
    • C07C201/16—Separation; Purification; Stabilisation; Use of additives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D36/00—Filter circuits or combinations of filters with other separating devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D36/00—Filter circuits or combinations of filters with other separating devices
    • B01D36/02—Combinations of filters of different kinds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D9/00—Crystallisation
    • B01D9/0004—Crystallisation cooling by heat exchange
    • B01D9/0013—Crystallisation cooling by heat exchange by indirect heat exchange
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D9/00—Crystallisation
    • B01D9/0036—Crystallisation on to a bed of product crystals; Seeding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D9/00—Crystallisation
    • B01D9/0059—General arrangements of crystallisation plant, e.g. flow sheets
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C205/00—Compounds containing nitro groups bound to a carbon skeleton
    • C07C205/07—Compounds containing nitro groups bound to a carbon skeleton the carbon skeleton being further substituted by halogen atoms
    • C07C205/11—Compounds containing nitro groups bound to a carbon skeleton the carbon skeleton being further substituted by halogen atoms having nitro groups bound to carbon atoms of six-membered aromatic rings
    • C07C205/12—Compounds containing nitro groups bound to a carbon skeleton the carbon skeleton being further substituted by halogen atoms having nitro groups bound to carbon atoms of six-membered aromatic rings the six-membered aromatic ring or a condensed ring system containing that ring being substituted by halogen atoms

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
CA098680A 1969-11-21 1970-11-20 Process for the continuous separation of isomer mixtures of the nitro-, chloro-, and nitrochloro-benzene and -toluene series Expired CA927843A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691958461 DE1958461C3 (en) 1969-11-21 1969-11-21 Process for the continuous separation of o- / p-nitrochlorobenzene from an isomer mixture of o- / p- / m-nitrochlorobenzene

Publications (1)

Publication Number Publication Date
CA927843A true CA927843A (en) 1973-06-05

Family

ID=5751679

Family Applications (1)

Application Number Title Priority Date Filing Date
CA098680A Expired CA927843A (en) 1969-11-21 1970-11-20 Process for the continuous separation of isomer mixtures of the nitro-, chloro-, and nitrochloro-benzene and -toluene series

Country Status (11)

Country Link
AT (1) AT305977B (en)
BE (1) BE759151A (en)
CA (1) CA927843A (en)
CH (1) CH545118A (en)
CS (1) CS174806B2 (en)
DE (1) DE1958461C3 (en)
FR (1) FR2069748A5 (en)
GB (1) GB1322020A (en)
IL (1) IL35703A (en)
NL (1) NL7016765A (en)
SE (1) SE387328B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2672816B1 (en) * 1991-02-18 1994-09-23 Inst Tech Vigne Vin INSTALLATION FOR THE CONTINUOUS SEPARATION BY CRYSTALLIZATION AND BY FILTRATION OF A LITTLE SOLUBLE SALT DISSOLVED IN A LIQUID SOLUTION.
DE4330731A1 (en) * 1993-09-10 1995-03-16 Bayer Ag Process for the isolation of m-dichlorobenzene from dichlorobenzene isomer mixtures
IT1302120B1 (en) * 1998-07-29 2000-07-31 Univ Roma PROCEDURE FOR PURIFICATION OF MEDIANTEDRY-SWEATING SOLID CHEMICAL PRODUCTS
CN101906043B (en) * 2010-08-19 2013-06-12 江苏隆昌化工有限公司 Production process for purifying high-purity 2,5-dichloronitrobenzene by solvent washing method

Also Published As

Publication number Publication date
AT305977B (en) 1973-03-26
NL7016765A (en) 1971-05-25
SU383278A3 (en) 1973-05-25
DE1958461C3 (en) 1973-07-12
IL35703A (en) 1975-02-10
BE759151A (en) 1971-05-19
FR2069748A5 (en) 1971-09-03
CH545118A (en) 1973-12-15
DE1958461B2 (en) 1972-12-14
IL35703A0 (en) 1971-01-28
DE1958461A1 (en) 1971-07-29
GB1322020A (en) 1973-07-04
CS174806B2 (en) 1977-04-29
SE387328B (en) 1976-09-06

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