FR2383148A2 - Procede de purification de benzene et de toluene par distillation azeotropique-extractive - Google Patents
Procede de purification de benzene et de toluene par distillation azeotropique-extractiveInfo
- Publication number
- FR2383148A2 FR2383148A2 FR7707242A FR7707242A FR2383148A2 FR 2383148 A2 FR2383148 A2 FR 2383148A2 FR 7707242 A FR7707242 A FR 7707242A FR 7707242 A FR7707242 A FR 7707242A FR 2383148 A2 FR2383148 A2 FR 2383148A2
- Authority
- FR
- France
- Prior art keywords
- azeotropic
- benzene
- extractive distillation
- purification process
- toluene
- 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.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C7/00—Purification; Separation; Use of additives
- C07C7/04—Purification; Separation; Use of additives by distillation
- C07C7/05—Purification; Separation; Use of additives by distillation with the aid of auxiliary compounds
- C07C7/08—Purification; Separation; Use of additives by distillation with the aid of auxiliary compounds by extractive distillation
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Water Supply & Treatment (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Le procédé concerne une modification apportée au procédé de distillation azéotropique-extractive décrit dans le brevet principal. La modification consiste à injecter de l'eau liquide au lieu d'eau vapeur dans la zone de la colonne de distillation comprise entre le point d'injection de solvant et la tête de colonne qui se trouve vaporisée par échange thermique au contact des vapeurs ascendants. Le procédé est applicable à la purification de benzène et de toluène au moyen d'amides aliphatiques alcoyles.
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7707242A FR2383148A2 (fr) | 1977-03-08 | 1977-03-08 | Procede de purification de benzene et de toluene par distillation azeotropique-extractive |
BE1008735A BE864467A (fr) | 1977-03-08 | 1978-03-02 | Procede de purification de benzene et de toluene par distillation azotropique-extractive |
DD78203994A DD133937A1 (de) | 1977-03-08 | 1978-03-06 | Verfahren zur reinigung von benzol und toluol durch azeotrope extraktivdestillation |
NL7802444A NL7802444A (nl) | 1977-03-08 | 1978-03-06 | Werkwijze voor de zuivering van benzeen en tolu- een door extractieve azeotrope -destillatie. |
IT20931/78A IT1094190B (it) | 1977-03-08 | 1978-03-07 | Procedimento di purificazione di benzene e di toluene per distillazione azeotropico-estrattiva |
JP2714178A JPS53112820A (en) | 1977-03-08 | 1978-03-08 | Purifying method of benzene and toluene with extracting distillation |
DE19782809985 DE2809985A1 (de) | 1977-03-08 | 1978-03-08 | Verfahren zur reinigung von benzol und toluol durch azeotrop-extraktive destillation |
GB9193/78A GB1556003A (en) | 1977-03-08 | 1978-03-08 | Separating benzene and or toluene from mixtures containing saturated hydrocarbons |
CA000298511A CA1118706A (fr) | 1977-03-08 | 1978-03-08 | Procede de purification de benzene et de toluene par distillation azetropique extractive |
US05/884,512 US4168209A (en) | 1977-03-08 | 1978-03-08 | Process for purifying benzene and toluene by extractive azeotropic distillation |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7707242A FR2383148A2 (fr) | 1977-03-08 | 1977-03-08 | Procede de purification de benzene et de toluene par distillation azeotropique-extractive |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2383148A2 true FR2383148A2 (fr) | 1978-10-06 |
FR2383148B2 FR2383148B2 (fr) | 1980-01-11 |
Family
ID=9187945
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7707242A Granted FR2383148A2 (fr) | 1977-03-08 | 1977-03-08 | Procede de purification de benzene et de toluene par distillation azeotropique-extractive |
Country Status (3)
Country | Link |
---|---|
US (1) | US4168209A (fr) |
BE (1) | BE864467A (fr) |
FR (1) | FR2383148A2 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2499063A1 (fr) * | 1981-02-05 | 1982-08-06 | Du Pont | Separation du benzene et du cyclohexane |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4358346A (en) * | 1981-05-06 | 1982-11-09 | The Foxboro Company | Control of alcohol distillation |
DE4109632A1 (de) * | 1991-03-23 | 1992-09-24 | Krupp Koppers Gmbh | Verfahren zur abtrennung von aromaten durch extraktivdestillation |
US6033529A (en) * | 1999-08-06 | 2000-03-07 | Berg; Lloyd | Separation of mesitylene from 4-ethyl toluene by azeotropic distillation |
DE10038320C1 (de) * | 2000-08-05 | 2001-08-23 | Krupp Uhde Gmbh | Verfahren und Vorrichtung zur Entfernung von sauren und/oder basischen Bestandteilen aus Kohlenwasserstoffen |
DE10038318C1 (de) * | 2000-08-05 | 2001-09-06 | Krupp Uhde Gmbh | Verfahren und Vorrichtung zur Erzeugung von Reinstaromaten |
FR2875508B1 (fr) * | 2004-09-22 | 2006-11-03 | Inst Francais Du Petrole | Procede ameliore d'isomerisation d'une coupe c7 avec coproduction d'une coupe riche en molecules aromatiques |
US8608912B2 (en) * | 2010-09-29 | 2013-12-17 | Uop Llc | Methods and extraction units employing vapor draw compositional analysis |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2022809A (en) * | 1931-08-18 | 1935-12-03 | Method fob fractionation control | |
US2684326A (en) * | 1949-05-11 | 1954-07-20 | Universal Oil Prod Co | Fractionation control |
US2742411A (en) * | 1951-09-13 | 1956-04-17 | Exxon Research Engineering Co | Recovery of furfural in extractive distillation purification of cyclic hydrocarbons |
FR2176488B1 (fr) * | 1972-03-20 | 1975-03-21 | Inst Francais Du Petrole |
-
1977
- 1977-03-08 FR FR7707242A patent/FR2383148A2/fr active Granted
-
1978
- 1978-03-02 BE BE1008735A patent/BE864467A/fr not_active IP Right Cessation
- 1978-03-08 US US05/884,512 patent/US4168209A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2499063A1 (fr) * | 1981-02-05 | 1982-08-06 | Du Pont | Separation du benzene et du cyclohexane |
Also Published As
Publication number | Publication date |
---|---|
BE864467A (fr) | 1978-09-04 |
US4168209A (en) | 1979-09-18 |
FR2383148B2 (fr) | 1980-01-11 |
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