EP0656875A1 - Procede de fabrication de chlorure vinylique - Google Patents
Procede de fabrication de chlorure vinyliqueInfo
- Publication number
- EP0656875A1 EP0656875A1 EP93919143A EP93919143A EP0656875A1 EP 0656875 A1 EP0656875 A1 EP 0656875A1 EP 93919143 A EP93919143 A EP 93919143A EP 93919143 A EP93919143 A EP 93919143A EP 0656875 A1 EP0656875 A1 EP 0656875A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- edc
- vinyl chloride
- benzotrichloride
- producing vinyl
- wash
- 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.)
- Withdrawn
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C17/00—Preparation of halogenated hydrocarbons
- C07C17/25—Preparation of halogenated hydrocarbons by splitting-off hydrogen halides from halogenated hydrocarbons
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C21/00—Acyclic unsaturated compounds containing halogen atoms
- C07C21/02—Acyclic unsaturated compounds containing halogen atoms containing carbon-to-carbon double bonds
- C07C21/04—Chloro-alkenes
- C07C21/06—Vinyl chloride
Definitions
- US Pat. No. 4,851,597 discloses the thermal cleavage of 1,2-dichloroethane (EDC) to vinyl chloride (VC) in the presence of trichloroacetyl chloride or a compound having 3 carbon atoms, at least 6 chlorine atoms, 0 or 1 oxygen atom and, bound to this carbon atom to carry out 0 or 1 hydrogen atom.
- EDC 1,2-dichloroethane
- VC vinyl chloride
- the invention therefore relates to the use of benzotrichloride as an additive in the thermal cracking of EDC to VC.
- the implementation can be carried out according to the information provided by the
- the thermal splitting is expediently carried out at 300 to 600 ° C., under normal pressure or increased pressure up to about 50 bar (5 MPa). Pressures of 10 to 40 bar (1 to 4 MPa) are preferred. Even relatively small amounts of benzotrichloride generate significantly higher sales of VC. For example, 250 ppm benzotrichloride increases the VC yield from about 52% (feed EDC without additive) to about 76%. Higher additions result in a further, but not so strong increase in the yield.
- benzotrichloride can be added to the pre-cleaned EDC (feed EDC).
- An apparatus consisting of a storage vessel for EDC, a metering pump, connected to one filled with glass balls
- Evaporator tube which in turn is connected to a quartz tube, which has an inner diameter of 18 mm and can be heated to a length of 500 mm.
- the outlet of the quartz tube is connected to three series-connected wash bottles and a gas collection bottle.
- the first wash bottle seen from the end of the quartz tube is provided with a cooling jacket (water cooling) and is used for condensation of the unreacted EDC.
- the second and third wash bottles contain distilled water to collect the hydrogen chloride formed during the EDC cleavage.
- VC + by-products finally flow through a gas collection bottle for sampling.
- the evaporator tube is heated to 220 ° C. and the quartz tube to 490 ° C. (measured on the inner wall of the tube at the end of the heating zone).
- the storage vessel is filled with EDC, to which the desired amount of initiator has been added. 90 g per hour EDC run into the heated evaporator tube via the metering pump and are evaporated there. The vapors are released through the quartz tube
- the sales values are mean values from at least two determinations.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Silicon Compounds (AREA)
Abstract
L'adjonction de chlorure de benzényle permet d'obtenir un meilleur rendement en chlorure vinylique lors de la dissociation thermique de 1,2-dichloréthane.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4228593A DE4228593A1 (de) | 1992-08-27 | 1992-08-27 | Verfahren zur Herstellung von Vinylchlorid |
DE4228593 | 1992-08-27 | ||
PCT/EP1993/002260 WO1994005609A1 (fr) | 1992-08-27 | 1993-08-23 | Procede de fabrication de chlorure vinylique |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0656875A1 true EP0656875A1 (fr) | 1995-06-14 |
Family
ID=6466616
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP93919143A Withdrawn EP0656875A1 (fr) | 1992-08-27 | 1993-08-23 | Procede de fabrication de chlorure vinylique |
Country Status (13)
Country | Link |
---|---|
US (1) | US5210345A (fr) |
EP (1) | EP0656875A1 (fr) |
JP (1) | JPH08500600A (fr) |
KR (1) | KR950702951A (fr) |
CN (1) | CN1088904A (fr) |
CA (1) | CA2143305A1 (fr) |
DE (1) | DE4228593A1 (fr) |
FI (1) | FI950868A0 (fr) |
MX (1) | MX9305211A (fr) |
RU (1) | RU95106778A (fr) |
TW (1) | TW212169B (fr) |
WO (1) | WO1994005609A1 (fr) |
ZA (1) | ZA936263B (fr) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4228593A1 (de) * | 1992-08-27 | 1994-03-03 | Hoechst Ag | Verfahren zur Herstellung von Vinylchlorid |
AU765289B2 (en) * | 1999-10-08 | 2003-09-11 | Honeywell International, Inc. | Separation of halogenated compounds |
FR2830859B1 (fr) * | 2001-10-17 | 2004-06-18 | Atofina | Procede d'obtention de chlorure de vinyle polymerisable a partir d'un produit brut issu de la pyrolyse du 1,2-dichloroethane |
KR100843605B1 (ko) * | 2006-01-27 | 2008-07-03 | 주식회사 엘지화학 | 천연가스중의 에탄을 이용한 비닐클로라이드 단량체의 합성방법 |
DE102008049262B4 (de) | 2008-09-26 | 2016-03-17 | Thyssenkrupp Industrial Solutions Ag | Verfahren und Vorrichtung zur Herstellung von ethylenisch ungesättigten halogenierten Kohlenwasserstoffen |
DE102008049260B4 (de) | 2008-09-26 | 2016-03-10 | Thyssenkrupp Industrial Solutions Ag | Verfahren und Vorrichtung zur Herstellung von ethylenisch ungesättigten halogenierten Kohlenwasserstoffen |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3328691A1 (de) * | 1983-08-09 | 1985-02-21 | Hoechst Ag, 6230 Frankfurt | Verfahren zur thermischen spaltung von 1,2-dichlorethan |
US4584420A (en) * | 1984-06-25 | 1986-04-22 | Ppg Industries, Inc. | Method for producing vinyl chloride |
DE4228593A1 (de) * | 1992-08-27 | 1994-03-03 | Hoechst Ag | Verfahren zur Herstellung von Vinylchlorid |
-
1992
- 1992-08-27 DE DE4228593A patent/DE4228593A1/de not_active Withdrawn
- 1992-10-09 US US07/959,040 patent/US5210345A/en not_active Expired - Fee Related
- 1992-10-13 TW TW081108118A patent/TW212169B/zh active
-
1993
- 1993-08-23 CA CA002143305A patent/CA2143305A1/fr not_active Abandoned
- 1993-08-23 KR KR1019950700706A patent/KR950702951A/ko not_active Application Discontinuation
- 1993-08-23 JP JP6506818A patent/JPH08500600A/ja active Pending
- 1993-08-23 RU RU95106778/04A patent/RU95106778A/ru unknown
- 1993-08-23 WO PCT/EP1993/002260 patent/WO1994005609A1/fr not_active Application Discontinuation
- 1993-08-23 EP EP93919143A patent/EP0656875A1/fr not_active Withdrawn
- 1993-08-26 ZA ZA936263A patent/ZA936263B/xx unknown
- 1993-08-26 CN CN93116788A patent/CN1088904A/zh active Pending
- 1993-08-27 MX MX9305211A patent/MX9305211A/es not_active Application Discontinuation
-
1995
- 1995-02-24 FI FI950868A patent/FI950868A0/fi not_active Application Discontinuation
Non-Patent Citations (1)
Title |
---|
See references of WO9405609A1 * |
Also Published As
Publication number | Publication date |
---|---|
JPH08500600A (ja) | 1996-01-23 |
KR950702951A (ko) | 1995-08-23 |
FI950868A (fi) | 1995-02-24 |
US5210345A (en) | 1993-05-11 |
TW212169B (en) | 1993-09-01 |
DE4228593A1 (de) | 1994-03-03 |
MX9305211A (es) | 1994-05-31 |
WO1994005609A1 (fr) | 1994-03-17 |
CN1088904A (zh) | 1994-07-06 |
ZA936263B (en) | 1995-01-17 |
CA2143305A1 (fr) | 1994-03-17 |
RU95106778A (ru) | 1996-12-20 |
FI950868A0 (fi) | 1995-02-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 19950327 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): BE DE FR GB IT NL SE |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
17Q | First examination report despatched |
Effective date: 19960709 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN |
|
18W | Application withdrawn |
Withdrawal date: 19960819 |