RU96115265A - METHOD AND DEVICE FOR CLEANING VINYL CHLORIDE - Google Patents

METHOD AND DEVICE FOR CLEANING VINYL CHLORIDE

Info

Publication number
RU96115265A
RU96115265A RU96115265/04A RU96115265A RU96115265A RU 96115265 A RU96115265 A RU 96115265A RU 96115265/04 A RU96115265/04 A RU 96115265/04A RU 96115265 A RU96115265 A RU 96115265A RU 96115265 A RU96115265 A RU 96115265A
Authority
RU
Russia
Prior art keywords
vinyl chloride
water
distillation
zone
stage
Prior art date
Application number
RU96115265/04A
Other languages
Russian (ru)
Other versions
RU2136651C1 (en
Inventor
Шварцмайер Петер
Каммерхофер Петер
Штегер Манфред
Калливода Хельмут
Мильке Ингольф
Original Assignee
Хехст АГ
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
Priority claimed from DE4342042A external-priority patent/DE4342042A1/en
Application filed by Хехст АГ filed Critical Хехст АГ
Publication of RU96115265A publication Critical patent/RU96115265A/en
Application granted granted Critical
Publication of RU2136651C1 publication Critical patent/RU2136651C1/en

Links

Claims (7)

1. Способ получения винилхлорида, отличающийся тем, что из реакционной смеси, образующейся при неполном термическом разложении 1,2-дихлорэтана при повышенном давлении и температурах от ок. 450 до 650oC в отсутствии катализаторов, на первой стадии дистилляции отгоняют хлористый водород и на второй стадии дистилляции отгоняют винилхлорид, причем отбираемый в головной части второй стадии дистилляции и ожиженный винилхлорид частично возвращают на вторую стадию дистилляции в виде флегмы и оставшуюся часть отбираемого и ожиженного винилхлорида подводят к головной части зоны обезгаживания, в которой выпаривают часть винилхлорида вместе со всем количеством увлеченного хлористого водорода и воды, и после удаления значительного количества воды возвращают в первую дистилляционную колонну, в то время как из нижней части зоны обезгаживания отбирают чистый винилхлорид.1. A method of producing vinyl chloride, characterized in that from the reaction mixture formed by incomplete thermal decomposition of 1,2-dichloroethane at elevated pressure and temperatures from approx. 450 to 650 o C in the absence of catalysts, in the first stage of distillation, hydrogen chloride is distilled off and in the second stage of distillation vinyl chloride is distilled off; vinyl chloride is fed to the head of the degassing zone, in which part of the vinyl chloride is evaporated together with the entire amount of entrained hydrogen chloride and water, and after removal of significant lichestva water is returned to the first distillation column, whereas the bottom of the degassing zone of pure vinyl chloride is taken. 2. Способ по п. 1, отличающийся тем, что удаляют воду с применением осушающего средства. 2. The method according to p. 1, characterized in that the water is removed using a drying agent. 3. Способ по п. 2, отличающийся тем, что применяют осушающее средство, которое адсорбируют воду. 3. The method according to p. 2, characterized in that the use of a drying agent that adsorb water. 4. Способ по п. 3, отличающийся тем, что в качестве осушающего средства применяют молекулярное сито или силикагель. 4. The method according to p. 3, characterized in that the molecular sieve or silica gel is used as a drying agent. 5. Устройство для получения винилхлорида, содержащее зону разложения (1), первую стадию дистилляции (2) для отделения хлористого водорода, вторую зону дистилляции (3) для отгонки винилхлорида от высококипящих компонентов и третью стадию дистилляции (4) для отделения хлористого водорода и воды от винилхлорида, отличающееся тем, что оно содержит узел (5) (зона сушки), через который возвращают на первую стадию дистилляции (2) отделенный на третьей стадии дистилляции (4) хлористый водород и воду с винилхлоридом и в котором удаляют значительное количество воды. 5. A device for producing vinyl chloride containing a decomposition zone (1), a first distillation step (2) for separating hydrogen chloride, a second distillation zone (3) for distilling vinyl chloride from high boiling components, and a third distillation step (4) for separating hydrogen chloride and water from vinyl chloride, characterized in that it contains a node (5) (drying zone) through which hydrogen chloride and water with vinyl chloride separated in the third stage of distillation (4) are returned to the first distillation stage (2) and in which a significant amount of it is removed TVO water. 6. Устройство по п. 5, отличающееся тем, что осушитель загружен средством, которое физически адсорбирует воду. 6. The device according to p. 5, characterized in that the desiccant is loaded with a means that physically adsorbs water. 7. Устройство по п. 5 или 6, отличающееся тем, что оно содержит параллельно подключенные осушители. 7. The device according to p. 5 or 6, characterized in that it contains parallel connected dehumidifiers.
RU96115265A 1993-12-09 1994-12-06 Vinyl chloride production process and installation RU2136651C1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4342042A DE4342042A1 (en) 1993-12-09 1993-12-09 Process and apparatus for cleaning vinyl chloride
DEP4342042.7 1993-12-09
PCT/EP1994/004050 WO1995015935A1 (en) 1993-12-09 1994-12-06 Process and device for cleaning vinyl chloride

Publications (2)

Publication Number Publication Date
RU96115265A true RU96115265A (en) 1998-10-20
RU2136651C1 RU2136651C1 (en) 1999-09-10

Family

ID=6504603

Family Applications (1)

Application Number Title Priority Date Filing Date
RU96115265A RU2136651C1 (en) 1993-12-09 1994-12-06 Vinyl chloride production process and installation

Country Status (23)

Country Link
US (1) US5507920A (en)
EP (1) EP0733031B1 (en)
JP (1) JPH09506362A (en)
KR (1) KR100336932B1 (en)
CN (1) CN1046496C (en)
AU (1) AU1109895A (en)
BG (1) BG62484B1 (en)
CZ (1) CZ289769B6 (en)
DE (2) DE4342042A1 (en)
ES (1) ES2116711T3 (en)
HU (1) HU219385B (en)
IL (1) IL111907A (en)
MY (1) MY116481A (en)
NO (1) NO305550B1 (en)
PL (1) PL177175B1 (en)
RO (1) RO117313B1 (en)
RU (1) RU2136651C1 (en)
SA (1) SA94150394B1 (en)
SG (1) SG64916A1 (en)
TW (1) TW316894B (en)
UA (1) UA40639C2 (en)
WO (1) WO1995015935A1 (en)
ZA (1) ZA949784B (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW442449B (en) 1996-07-04 2001-06-23 Hoechst Ag Process for preparing 1,2-dichloroethane by direct chlorination
DE10084509T1 (en) * 1999-04-23 2002-07-25 Dow Chemical Co Water removal when cleaning vinyl chloride
FR2830859B1 (en) * 2001-10-17 2004-06-18 Atofina PROCESS FOR OBTAINING POLYMERIZABLE VINYL CHLORIDE FROM A CRUDE PRODUCT FROM THE PYROLYSIS OF 1,2-DICHLOROETHANE
DE10219723B4 (en) 2002-05-02 2005-06-09 Uhde Gmbh Process for the preparation of unsaturated halogen-containing hydrocarbons and device suitable therefor
DE10319811A1 (en) 2003-04-30 2004-11-18 Uhde Gmbh Device for coupling electromagnetic radiation into a reactor and reactor containing this device
US8637698B2 (en) * 2010-11-19 2014-01-28 Celanese International Corporation Production of acetic acid with an increased production rate
CN102675034B (en) * 2012-05-10 2014-05-14 江苏省计量科学研究院 System and method for purifying vinyl chloride monomer
CN103694079B (en) * 2013-09-27 2015-04-15 新疆天业（集团）有限公司 Method for refining and purifying vinyl chloride monomer
CN105481640B (en) * 2015-12-17 2019-03-08 青岛科技大学 A kind of VCM rectification technique of the low loss of low energy consumption
TWI832422B (en) * 2022-09-14 2024-02-11 臺灣塑膠工業股份有限公司 System and method for producing vinyl chloride

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1242594B (en) * 1965-09-11 1967-06-22 Knapsack Ag Process for the production of vinyl chloride by incomplete thermal cleavage of 1,2-dichloroethane
DE1910854C3 (en) * 1969-03-04 1978-08-31 Hoechst Ag, 6000 Frankfurt Process for the production of vinyl chloride
US3761361A (en) * 1970-12-07 1973-09-25 Ethyl Corp Production and purification of vinyl chloride
US3963584A (en) * 1974-08-16 1976-06-15 The Lummus Company Recovery of 1,2-dichloroethane from vinyl chloride production effluent
DE3024156C2 (en) * 1980-06-27 1983-03-03 Hoechst Ag, 6000 Frankfurt Process for the production of vinyl chloride
US4642400A (en) * 1985-09-23 1987-02-10 The B. F. Goodrich Company Process for finishing vinyl chloride monomer
GB8601081D0 (en) * 1986-01-17 1986-02-19 Distillers Co Carbon Dioxide Removing water from ethanol

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