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 toluenesInfo
- 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
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)
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 (xx) |
BE (1) | BE759151A (xx) |
CA (1) | CA927843A (xx) |
CH (1) | CH545118A (xx) |
CS (1) | CS174806B2 (xx) |
DE (1) | DE1958461C3 (xx) |
FR (1) | FR2069748A5 (xx) |
GB (1) | GB1322020A (xx) |
IL (1) | IL35703A (xx) |
NL (1) | NL7016765A (xx) |
SE (1) | SE387328B (xx) |
Families Citing this family (4)
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 |
-
0
- BE BE759151D patent/BE759151A/xx not_active IP Right Cessation
-
1969
- 1969-11-21 DE DE19691958461 patent/DE1958461C3/de not_active Expired
-
1970
- 1970-11-16 NL NL7016765A patent/NL7016765A/xx not_active Application Discontinuation
- 1970-11-18 CH CH1705970A patent/CH545118A/de not_active IP Right Cessation
- 1970-11-19 CS CS7821A patent/CS174806B2/cs unknown
- 1970-11-19 AT AT1042870A patent/AT305977B/de active
- 1970-11-19 GB GB5506370A patent/GB1322020A/en not_active Expired
- 1970-11-20 CA CA098680A patent/CA927843A/en not_active Expired
- 1970-11-20 SE SE7015715A patent/SE387328B/xx unknown
- 1970-11-20 FR FR7041703A patent/FR2069748A5/fr not_active Expired
- 1970-11-22 IL IL35703A patent/IL35703A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
AT305977B (de) | 1973-03-26 |
NL7016765A (xx) | 1971-05-25 |
SU383278A3 (xx) | 1973-05-25 |
DE1958461C3 (de) | 1973-07-12 |
IL35703A (en) | 1975-02-10 |
FR2069748A5 (xx) | 1971-09-03 |
CH545118A (de) | 1973-12-15 |
DE1958461B2 (de) | 1972-12-14 |
IL35703A0 (en) | 1971-01-28 |
DE1958461A1 (de) | 1971-07-29 |
GB1322020A (en) | 1973-07-04 |
CS174806B2 (xx) | 1977-04-29 |
CA927843A (en) | 1973-06-05 |
SE387328B (sv) | 1976-09-06 |
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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 |