BE759151A - Procede de separation en continu de melanges d'isomeres des series des nitro, chloro et nitrochlorobenzenes et toluenes - Google Patents

Procede de separation en continu de melanges d'isomeres des series des nitro, chloro et nitrochlorobenzenes et toluenes

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
English (en)
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/fr

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 Procede de separation en continu de melanges d'isomeres des series des nitro, chloro et nitrochlorobenzenes et toluenes BE759151A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19691958461 DE1958461C3 (de) 1969-11-21 1969-11-21 Verfahren zur kontinuierlichen Trennung von o-/p-Nitrochlorbenzol aus einem Isomerengemisch von o-/p-/m-Nitrochlorbenzol

Publications (1)

Publication Number Publication Date
BE759151A true BE759151A (fr) 1971-05-19

Family

ID=5751679

Family Applications (1)

Application Number Title Priority Date Filing Date
BE759151D BE759151A (fr) 1969-11-21 Procede de separation en continu de melanges d'isomeres des series des nitro, chloro et nitrochlorobenzenes et toluenes

Country Status (11)

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

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2672816B1 (fr) * 1991-02-18 1994-09-23 Inst Tech Vigne Vin Installation pour la separation en continu par cristallisation et par filtration d'un sel peu soluble dissout dans une solution liquide.
DE4330731A1 (de) * 1993-09-10 1995-03-16 Bayer Ag Verfahren zur Isolierung von m-Dichlorbenzol aus Dichlorbenzol-Isomerengemischen
IT1302120B1 (it) * 1998-07-29 2000-07-31 Univ Roma Procedimento per la purificazione di prodotti chimici solidi mediantedry-sweating
CN101906043B (zh) * 2010-08-19 2013-06-12 江苏隆昌化工有限公司 一种溶剂洗涤法提纯高纯度2,5-二氯硝基苯的生产工艺

Also Published As

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

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Legal Events

Date Code Title Description
RE20 Patent expired

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

Effective date: 19901119