EP2943455A1 - Procédé de récupération de chaleur dans des installations de production de chlorure de vinyle monomère ou dans des installations de production combinée de dichloroéthane/chlorure de vinyle, et dispositif adapté pour cela - Google Patents

Procédé de récupération de chaleur dans des installations de production de chlorure de vinyle monomère ou dans des installations de production combinée de dichloroéthane/chlorure de vinyle, et dispositif adapté pour cela

Info

Publication number
EP2943455A1
EP2943455A1 EP13817887.6A EP13817887A EP2943455A1 EP 2943455 A1 EP2943455 A1 EP 2943455A1 EP 13817887 A EP13817887 A EP 13817887A EP 2943455 A1 EP2943455 A1 EP 2943455A1
Authority
EP
European Patent Office
Prior art keywords
dichloroethane
column
vinyl chloride
plant
downstream
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.)
Ceased
Application number
EP13817887.6A
Other languages
German (de)
English (en)
Inventor
Manuel Braun
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ThyssenKrupp Industrial Solutions AG
Westlake Vinnolit GmbH and Co KG
Original Assignee
Vinnolit GmbH and Co KG
ThyssenKrupp Industrial Solutions 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.)
Filing date
Publication date
Application filed by Vinnolit GmbH and Co KG, ThyssenKrupp Industrial Solutions AG filed Critical Vinnolit GmbH and Co KG
Publication of EP2943455A1 publication Critical patent/EP2943455A1/fr
Ceased legal-status Critical Current

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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/24—Stationary reactors without moving elements inside
    • B01J19/245—Stationary reactors without moving elements inside placed in series
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B7/00—Halogens; Halogen acids
    • C01B7/01—Chlorine; Hydrogen chloride
    • C01B7/07—Purification ; Separation
    • C01B7/0706—Purification ; Separation of hydrogen chloride
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00—Preparation of halogenated hydrocarbons
    • C07C17/38—Separation; Purification; Stabilisation; Use of additives
    • C07C17/383—Separation; Purification; Stabilisation; Use of additives by distillation
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00—Preparation of halogenated hydrocarbons
    • C07C17/38—Separation; Purification; Stabilisation; Use of additives
    • C07C17/395—Separation; Purification; Stabilisation; Use of additives by treatment giving rise to a chemical modification of at least one compound
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C19/00—Acyclic saturated compounds containing halogen atoms
    • C07C19/01—Acyclic saturated compounds containing halogen atoms containing chlorine
    • C07C19/043—Chloroethanes
    • C07C19/045—Dichloroethanes
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/007—Energy recuperation; Heat pumps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00002—Chemical plants
    • B01J2219/00027—Process aspects
    • B01J2219/0004—Processes in series
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00049—Controlling or regulating processes
    • B01J2219/00051—Controlling the temperature
    • B01J2219/00074—Controlling the temperature by indirect heating or cooling employing heat exchange fluids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/24—Stationary reactors without moving elements inside
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/10—Process efficiency
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Definitions

  • the invention relates to a method and an apparatus for the production of
  • VCM Vinyl chloride
  • the invention aims at heating the HCI column in the VCM plant or in a plant composite for the production of DCE and VCM.
  • the invention is directed to a process for the production of VCM, which is usually obtained by thermal decomposition of DCE, and from which ultimately polyvinyl chloride (hereinafter "PVC") is produced.
  • PVC polyvinyl chloride
  • Reaction of DCE to VCM produces hydrogen chloride (hereinafter “HCl”).
  • DCE is therefore preferably prepared from ethylene and chlorine in such a way that with regard to the hydrogen chloride produced and consumed in the reactions a balanced balance
  • the DCE used is usually vaporized in the first step, then in a second step the vapor formed is pyrolytically cleaved at a relatively high temperature, further in a third step from the hot produced in the second step Cleavage gas separated the entrained solids and then the purified
  • the main products of the cleavage of the DCE carried out in the second process step are HCl and VCM
  • Byproducts include soot, chlorinated and unsaturated hydrocarbons and benzene. To limit the formation of these unwanted by-products, the temperature of the cleavage is maintained at a level that results in incomplete reaction of the DCE. Therefore, that contains in the second
  • the hot cracking gas generated by pyrolysis falls at pyrolysis temperature. It is conditioned so that it adopts a shape suitable for the actual substance separation. For this purpose it is quenched in a so-called quench column, wherein also in
  • Cleavage gas contained solids are washed out.
  • the solids are withdrawn at the bottom of the quench column.
  • the largest part of the gaseous mixture of DCE, VCM and HCl (quenching or quenching head vapor called) is withdrawn at the top of the quench column and fed to further workup.
  • Heat exchangers are used economically.
  • a plant complex for the production of vinyl chloride (hereinafter referred to as "VCM complex") consists essentially of: - a plant for the production of DCE from ethene and chlorine ("direct chlorination", optional part of the installation);
  • Condensation of the mechanically compressed vapor obtained DCE is then used as a feed DCE in the thermal fission, after passing through the flue gases the slit furnace was further preheated.
  • the vapors of the quench column downstream of the cracking furnace are used to preheat the feed DCE. From DE 31 47 310 A1 a process for the recovery of heat in the VCM production by cleavage of DCE is known. This heat is recovered from generated during VCM production fission gases and for heating
  • the DCE cleavage takes place under pressure and the cleavage gases are quenched by direct cooling.
  • the thermal energy obtained is used to operate distillation columns connected downstream of the quench column.
  • DE 29 13 004 A describes a process for the recovery of pyrolysis in the production of vinyl chloride by incomplete thermal cleavage of 1, 2 dichloroethane.
  • water vapor is generated in a heat exchanger and this water vapor is then used to heat columns.
  • DE 35 19 161 A1 discloses a process for the purification of 1, 2-dichloroethane is disclosed.
  • a distillation column is operated under elevated pressure and the heat content of the top stream is used to heat other heat sinks.
  • the resulting dichloroethane is so warm that it is used to heat 1, 2 dichloroethane-containing product streams.
  • plant concepts have been introduced that operate the DCE column in the so-called "pressure distillation" mode, with the result that the feed DCE obtained in this process for thermal cracking to VCM significantly increases compared to previous processes has increased temperature.
  • the object of the present invention is to provide a method for
  • the present invention relates to a process for the preparation of vinyl chloride by thermal cleavage of 1, 2-dichloroethane in a vinyl chloride plant, in which a 1, 2-dichloroethane pyrolysis is provided in the feed-1, 2-dichloroethane is thermally cleaved , the cracking gas generated therein is cooled in a downstream quench column and the hydrogen chloride contained in the cracking gas is separated in a downstream HCI column, the vinyl chloride plant is preceded by a 1, 2-dichloroethane system, which is a distillative purification of, 2- Dichloroethane, in which at least one high-boiling column is provided, wherein higher than 1, 2-dichloro-boiling substances are separated, wherein the high boiler column is operated under pressure, preferably under pressure in the range of 2.7 to 5.3 bara.
  • the inventive method is characterized in that at least a portion of the vapors from the quench column for the recovery of thermal energy is used
  • the high boiler column is particularly preferably operated at head temperatures between 120-150 ° C, and at least a portion of the overhead stream of the high boiler column is used for the production of thermal energy used in heat sinks of a unit for the preparation and purification of 1, 2-dichloroethane and / or in heat sinks of a downstream unit for the production and purification of
  • the thermal energy obtained from the top stream of the quench column is not used to heat the feed 1, 2-dichloroethane for the 1, 2-dichloroethane pyrolysis.
  • this thermal energy is used to heat the HCl column, preferably at least 50%, particularly preferably at least 70% of the thermal energy originating from vapors from the quench column and the remainder from low-pressure steam.
  • the invention also relates to an apparatus for producing vinyl chloride by thermal decomposition of 1,2-dichloroethane in a vinyl chloride plant comprising the elements:
  • Purification of 1, 2-dichloroethane which comprises a distillative purification of 1, 2 dichloroethane, and in the F) at least one high boiler column is provided, wherein higher than 1, 2 dichloroethane boiling substances are separated, wherein the
  • High boiler column is designed so that it can be operated under pressure.
  • At least one heat exchanger is provided, which is heated with vapors from the high boiler column, and in which the thermal energy obtained for heating heat sinks in the 1, 2-dichloroethane system and / or heat sinks in the vinyl chloride Plant and / or heat sinks in a vinyl chloride plant downstream
  • Polyvinyl chloride unit is used.
  • Suitable and preferred heat sinks in a plant complex for DCE / VCM / PVC production are:
  • VCM PVC residue remover
  • Example One or more heat exchangers were switched between gap quench and HCI column, in which the vapors from the quench column were cooled and the recovered heat content was used to heat the HCl column.
  • Heating of the HCI column takes place according to the following scenario:
  • the feed DCE for the gap quench was from a DCE plant with a high boiler column which was operated under pressure.
  • the head temperatures were between 120 and 150 ° C.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

L'invention concerne un procédé de production de chlorure de vinyle par craquage thermique de 1,2-dichloroéthane dans une installation de production de chlorure de vinyle équipée d'une unité de pyrolyse de 1,2-dichloroéthane dans laquelle la charge de 1,2-dichloroéthane est soumise à un craquage thermique. Le gaz de craquage ainsi obtenu est refroidi dans une colonne de refroidissement en aval et le gaz chlorhydrique contenu dans le gaz de craquage est séparé dans une colonne de HCl en aval. Une installation de production de 1,2-dichloroéthane disposée en amont de l'installation de production de chlorure de vinyle comprend un étage de purification du 1,2-dichloroéthane par distillation équipé d'au moins une colonne de séparation des composés dont le point d'ébullition est supérieur à celui du 1,2-dichloroéthane, la colonne de séparation des composés à haut point d'ébullition fonctionnant sous une surpression. Le procédé est caractérisé en ce qu'une partie au moins des vapeurs issues de la colonne de refroidissement est utilisée pour récupérer de l'énergie thermique qui est employée pour chauffer la colonne de HCl.
EP13817887.6A 2013-01-10 2013-12-20 Procédé de récupération de chaleur dans des installations de production de chlorure de vinyle monomère ou dans des installations de production combinée de dichloroéthane/chlorure de vinyle, et dispositif adapté pour cela Ceased EP2943455A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013000325.3A DE102013000325A1 (de) 2013-01-10 2013-01-10 Verfahren zur Wärmerückgewinnung in Vinylchlorid-Monomeranlagen oder im Anlagenverbund Dichlorethan / Vinylchlorid und dafür geeignete Vorrichtung
PCT/EP2013/003878 WO2014108159A1 (fr) 2013-01-10 2013-12-20 Procédé de récupération de chaleur dans des installations de production de chlorure de vinyle monomère ou dans des installations de production combinée de dichloroéthane/chlorure de vinyle, et dispositif adapté pour cela

Publications (1)

Publication Number Publication Date
EP2943455A1 true EP2943455A1 (fr) 2015-11-18

Family

ID=49918663

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13817887.6A Ceased EP2943455A1 (fr) 2013-01-10 2013-12-20 Procédé de récupération de chaleur dans des installations de production de chlorure de vinyle monomère ou dans des installations de production combinée de dichloroéthane/chlorure de vinyle, et dispositif adapté pour cela

Country Status (7)

Country Link
US (1) US9334209B2 (fr)
EP (1) EP2943455A1 (fr)
CN (1) CN104918905A (fr)
DE (1) DE102013000325A1 (fr)
MX (1) MX2015008900A (fr)
RU (1) RU2645342C2 (fr)
WO (1) WO2014108159A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102236922B1 (ko) 2017-09-27 2021-04-07 주식회사 엘지화학 염화비닐계 중합체, 이의 제조방법 및 이를 포함하는 내장재
DE102019206154A1 (de) 2019-04-30 2020-11-05 Thyssenkrupp Ag Verfahren und Anlage zur Herstellung von Vinylchlorid aus 1,2-Dichlorethan
DE102019206155A1 (de) * 2019-04-30 2020-11-05 Thyssenkrupp Ag Verfahren und Anlage zur Herstellung von Vinylchlorid aus 1,2-Dichlorethan
KR20210034418A (ko) 2019-09-20 2021-03-30 주식회사 엘지화학 염화비닐계 중합체의 제조방법
DE102022208894A1 (de) 2022-08-29 2024-02-29 Thyssenkrupp Ag Verfahren und Anlage zur Herstellung von Vinylchlorid aus 1,2-Dichlorethan
LU102998B1 (de) 2022-08-29 2024-02-29 Thyssenkrupp Ind Solutions Ag Verfahren und Anlage zur Herstellung von Vinylchlorid aus 1,2-Dichlorethan
WO2024046801A1 (fr) 2022-08-29 2024-03-07 Thyssenkrupp Industrial Solutions Ag Procédé et installation de production de chlorure de vinyle à partir de 1,2-dichloroéthane

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2913004A1 (de) * 1979-03-31 1980-10-16 Hoechst Ag Verfahren zur rueckgewinnung von pyrolyseenergie bei der herstellung von vinylchlorid durch unvollstaendige thermische spaltung von 1,2-dichloraethan
DE3147310A1 (de) 1981-11-28 1983-06-01 Basf Ag, 6700 Ludwigshafen Verfahren zur rueckgewinnung von waerme bei der herstellung von vinylchlorid durch spaltung von 1,2-dichlorethan
DE3440685A1 (de) 1984-11-07 1986-05-07 Wacker-Chemie GmbH, 8000 München Verfahren zur herstellung von vinylchlorid durch thermische spaltung von gereinigtem 1,2-dichlorethan
DE3441080A1 (de) * 1984-11-09 1986-05-15 Wacker-Chemie GmbH, 8000 München Verfahren zur aufarbeitung des pyrolyse-produkts aus der 1.2-dichlorethan-spaltung unter waermerueckgewinnung
DE3519161A1 (de) * 1985-05-29 1986-12-04 Hoechst Ag, 6230 Frankfurt Verfahren zur reinigung von 1,2-dichlorethan
RU2153486C2 (ru) * 1998-02-16 2000-07-27 Стерлитамакское закрытое акционерное общество "Каустик" Способ выделения тонкодисперсных твердых, смолистых и высококипящих побочных продуктов из реакционных газов пиролиза дихлорэтана в производстве винилхлорида
RU2179965C1 (ru) * 2000-08-04 2002-02-27 ГУП НИИ "Синтез" с КБ Способ получения винилхлорида
TWI327995B (en) 2003-04-11 2010-08-01 Vinnolit Gmbh & Co Kg Vorrichtung und verfahren zur herstellung von vinylchlorid durch thermische spaltung von 1,2-dichlorethan

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
None *
See also references of WO2014108159A1 *

Also Published As

Publication number Publication date
RU2645342C2 (ru) 2018-02-21
RU2015126502A (ru) 2017-02-15
US9334209B2 (en) 2016-05-10
DE102013000325A1 (de) 2014-07-10
CN104918905A (zh) 2015-09-16
WO2014108159A1 (fr) 2014-07-17
MX2015008900A (es) 2016-04-25
US20150353452A1 (en) 2015-12-10

Similar Documents

Publication Publication Date Title
WO2014108159A1 (fr) Procédé de récupération de chaleur dans des installations de production de chlorure de vinyle monomère ou dans des installations de production combinée de dichloroéthane/chlorure de vinyle, et dispositif adapté pour cela
DE2449013A1 (de) Verfahren zur herstellung von malonsaeuredinitril
EP0307673B1 (fr) Procédé pour l'obtention de tétrafluoroéthylène pur
EP0180925A2 (fr) Procédé pour la préparation de chlorure de vinyle par dissociation thermique de 1,2-dichloroéthane purifié
DE2313037C3 (de) Verfahren zur Herstellung von Vinylchlorid durch thermische Spaltung von 1,2-Dichloräthan
EP0180995B2 (fr) Procédé pour le retraitement du produit de pyrolyse de la scission de 1,2-dichloroéthane avec récupération de chaleur
EP0075742B1 (fr) Procédé pour la préparation de 1,2-dichloroéthane
EP0203478B1 (fr) Procédé pour l'épuration de dichloro-1,2 éthane
EP1899287B1 (fr) Procede et dispositif pour utiliser la chaleur developpee par la reaction lors de la production de 1,2-dichlorethane
EP0021381B1 (fr) Procédé pour la récupération de l'energie de pyrolyse dans la préparation de chlorure de vinyle par craquage thermique du dichloroéthane
EP2788307B1 (fr) Procédé de récupération de chaleur dans des installations de chlorure de vinyle monomère ou dans un ensemble d'installations de chlorure de vinyle/chlorure de polyvinyle, et dispositif approprié correspondant
EP1214279B1 (fr) Procede permettant d'utiliser la chaleur produite lors de la fabrication du 1,2-dichlorethane
DE102011120479A1 (de) Verfahren zur Wärmerückgewinnung in Vinylchlorid-Monomeranlagen oder im Anlagenverbund Vinylchlorid / Polyvinylchlorid und dafür geeignete Vorrichtung
DE102012007339A1 (de) Verfahren zur Wärmerückgewinnung in Vinylchlorid-Monomeranlagen oder im Anlagenverbund Vinylchlorid / Polyvinylchlorid und dafür geeignete Vorrichtung
EP0180998B1 (fr) Procédé de prétraitement de 1,2-dichloroéthane destiné à la pyrolyse
DE3225732A1 (de) Verfahren zur herstellung und reinigung von 1,2-dichlorethan
DE1806988A1 (de) Verfahren zur Chlorierung von Kohlenwasserstoffen
DE19718003C2 (de) Verfahren zur Aufarbeitung der Spaltprodukte aus der thermischen Spaltung von 1,2-Dichlorethan
DE3140892C2 (fr)
DE1493801C (de) Kontinuierliches Verfahren zur Her Stellung von Phenol durch Chlorierung von Benzol und Hydrolyse des Chlorbenzols
DD265617A5 (de) Verfahren und vorrichtung zur herstellung on inylchlorid durch thermische spaltung von 1,2-dichlorethan
WO2016016200A1 (fr) Procédé et dispositif pour la synthèse de 1,2-dichloroéthane
DE1096344B (de) Verfahren zur Gewinnung von Monovinylacetylen hoher Reinheit
DE1493801B (de) Kontinuierliches Verfahren zur Her stellung von Phenol durch Chlorierung von Benzol und Hydrolyse des Chlorbenzols

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: 20150810

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAX Request for extension of the european patent (deleted)
17Q First examination report despatched

Effective date: 20170915

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: THYSSENKRUPP INDUSTRIAL SOLUTIONS AG

Owner name: VINNOLIT GMBH & CO. KG

REG Reference to a national code

Ref country code: DE

Ref legal event code: R003

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED

18R Application refused

Effective date: 20190912