BE759151A - PROCESS FOR THE CONTINUOUS SEPARATION OF MIXTURES OF ISOMERS OF THE NITRO, CHLORO AND NITROCHLOROBENZENES AND TOLUENES SERIES - Google Patents

PROCESS FOR THE CONTINUOUS SEPARATION OF MIXTURES OF ISOMERS OF THE NITRO, CHLORO AND NITROCHLOROBENZENES AND TOLUENES SERIES

Info

Publication number
BE759151A
BE759151A BE759151DA BE759151A BE 759151 A BE759151 A BE 759151A BE 759151D A BE759151D A BE 759151DA BE 759151 A BE759151 A BE 759151A
Authority
BE
Belgium
Prior art keywords
nitrochlorobenzenes
toluenes
isomers
nitro
chloro
Prior art date
Application number
Other languages
French (fr)
Original Assignee
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.)
Publication date
Publication of BE759151A publication Critical patent/BE759151A/en

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)
BE759151D 1969-11-21 PROCESS FOR THE CONTINUOUS SEPARATION OF MIXTURES OF ISOMERS OF THE NITRO, CHLORO AND NITROCHLOROBENZENES AND TOLUENES SERIES BE759151A (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
BE759151A true BE759151A (en) 1971-05-19

Family

ID=5751679

Family Applications (1)

Application Number Title Priority Date Filing Date
BE759151D BE759151A (en) 1969-11-21 PROCESS FOR THE CONTINUOUS SEPARATION OF MIXTURES OF ISOMERS OF THE NITRO, CHLORO AND NITROCHLOROBENZENES AND TOLUENES 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 (5)

* 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
CN115819245B (en) * 2022-11-16 2025-06-17 湖北东方化工有限公司 A coupling process method for mononitrotoluene distillation and melt crystallization

Also Published As

Publication number Publication date
DE1958461C3 (en) 1973-07-12
SE387328B (en) 1976-09-06
FR2069748A5 (en) 1971-09-03
IL35703A (en) 1975-02-10
NL7016765A (en) 1971-05-25
GB1322020A (en) 1973-07-04
SU383278A3 (en) 1973-05-25
CH545118A (en) 1973-12-15
DE1958461A1 (en) 1971-07-29
AT305977B (en) 1973-03-26
CS174806B2 (en) 1977-04-29
CA927843A (en) 1973-06-05
IL35703A0 (en) 1971-01-28
DE1958461B2 (en) 1972-12-14

Similar Documents

Publication Publication Date Title
FR2322917A1 (en) IMPROVED FLAVORING PROCESS
BE792789A (en) PROCESS FOR THE PREPARATION OF 1,2,3-TRICHLOROPROPENE
BE757476A (en) OXIDESHYDROGENATION PROCESS
BE816936A (en) PROCESS FOR THE PREPARATION OF CYANURYL CHLORIDE AND PRODUCT OBTAINED
RO65658A (en) PROCESS FOR THE PREPARATION OF N- (METHOXYMETHYLFURYLMETHYL-6,7-BENZOMORPHANS AND MORPHINANES
BE754702A (en) PROCESS FOR DISSOCIATION OF MIXTURES OF HYDROCARBONS, AND PRODUCTS OBTAINED
BE756725A (en) PROCESS FOR THE PREPARATION OF 3,3,3-TRIFLUOROPROPYLMETHYLPOLYSILOXANES
RO63743A (en) PROCESS FOR THE SEPARATION OF DICHLOROETHYLENE FROM CHLORINATED HYDROCARBON MIXTURES
RO64269A (en) PROCESS FOR THE PREPARATION OF IZOXAZOLE- (5,4-D) -PIRYMIDINES
BE759151A (en) PROCESS FOR THE CONTINUOUS SEPARATION OF MIXTURES OF ISOMERS OF THE NITRO, CHLORO AND NITROCHLOROBENZENES AND TOLUENES SERIES
BE760140A (en) CONTINUOUS CRYSTALLIZATION PROCESS
BE745439A (en) PROCESS FOR THE PRODUCTION OF 1,3-CYCLOHEXYLENE DIISOCYANATES
BE755395A (en) BUTADIENE CHLORINATION PROCESS
BE753621A (en) IMPROVED PROCESS FOR THE PRODUCTION OF ETHYLENE COPOLYMERS
BE759855A (en) AROMATIC HYDROCARBONS ALCOYLATION PROCESS
CH522366A (en) Food flavoring process
BE779006A (en) SEPARATION PROCESS
BE786986A (en) 2-CHLORO-BUTADIENE-1,3 PREPARATION PROCESS
BE764794Q (en) PROCESS FOR THE PRODUCTION OF 2,6-DICHLORO-3-NITROPYRIDINE
RO63721A (en) PROCESS FOR THE PREPARATION OF VINYL CHLORIDE FROM 1,2-DICHLORETANE
CH552657A (en) DINITROANTHRAQUINON SEPARATION PROCESS.
BE755029A (en) PROCESS FOR THE PREPARATION OF 1,3-DIACETOXY-2-METHYLENE-PROPANE
BE747440A (en) MIXTURE PURIFICATION PROCESS
BE746642A (en) PROCESS FOR THE PREPARATION OF 2-METHYLENE-1,3 DIACETOXYPROPANE
BE760506A (en) HALOGENOETHANES CHLORINATION PROCESS,

Legal Events

Date Code Title Description
RE20 Patent expired

Owner name: FARBWERKE HOECHST A.G. VORMALS MEISTER LUCIUS & B

Effective date: 19901119