RU2004118462A - METHOD FOR PRODUCING HEXAFLUOROBUTADIENE AND 1,2-Dichlorohexafluorocyclobutane - Google Patents

METHOD FOR PRODUCING HEXAFLUOROBUTADIENE AND 1,2-Dichlorohexafluorocyclobutane Download PDF

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Publication number
RU2004118462A
RU2004118462A RU2004118462/04A RU2004118462A RU2004118462A RU 2004118462 A RU2004118462 A RU 2004118462A RU 2004118462/04 A RU2004118462/04 A RU 2004118462/04A RU 2004118462 A RU2004118462 A RU 2004118462A RU 2004118462 A RU2004118462 A RU 2004118462A
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RU
Russia
Prior art keywords
dichlorohexafluorocyclobutane
temperature
hexafluorobutadiene
producing
dichlorohexafluorobutene
Prior art date
Application number
RU2004118462/04A
Other languages
Russian (ru)
Other versions
RU2264376C1 (en
Inventor
Андрей Сергеевич Кузнецов (RU)
Андрей Сергеевич Кузнецов
Светлана Ивановна Озол (RU)
Светлана Ивановна Озол
Дмитрий Николаевич Рудовский (RU)
Дмитрий Николаевич Рудовский
Original Assignee
Закрытое акционерное общество АСТОР ЭЛЕКТРОНИКС (RU)
Закрытое акционерное общество АСТОР ЭЛЕКТРОНИКС
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Application filed by Закрытое акционерное общество АСТОР ЭЛЕКТРОНИКС (RU), Закрытое акционерное общество АСТОР ЭЛЕКТРОНИКС filed Critical Закрытое акционерное общество АСТОР ЭЛЕКТРОНИКС (RU)
Priority to RU2004118462/04A priority Critical patent/RU2264376C1/en
Priority to TW093130515A priority patent/TWI289548B/en
Priority to KR1020040087082A priority patent/KR101145407B1/en
Application granted granted Critical
Publication of RU2264376C1 publication Critical patent/RU2264376C1/en
Publication of RU2004118462A publication Critical patent/RU2004118462A/en

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    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00—Preparation of halogenated hydrocarbons
    • C07C17/361—Preparation of halogenated hydrocarbons by reactions involving a decrease in the number of carbon atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00—Preparation of halogenated hydrocarbons
    • C07C17/23—Preparation of halogenated hydrocarbons by dehalogenation
    • 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
    • C07C17/392—Separation; Purification; Stabilisation; Use of additives by crystallisation; Purification or separation of the crystals
    • 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
    • C07C17/42—Use of additives, e.g. for stabilisation
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C19/00—Acyclic saturated compounds containing halogen atoms
    • C07C19/08—Acyclic saturated compounds containing halogen atoms containing fluorine
    • C07C19/10—Acyclic saturated compounds containing halogen atoms containing fluorine and chlorine
    • 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
    • C07C21/18—Acyclic unsaturated compounds containing halogen atoms containing carbon-to-carbon double bonds containing fluorine
    • 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
    • C07C21/19—Halogenated dienes
    • C07C21/20—Halogenated butadienes

Claims (2)

1. Способ получения гексафторбутадиена и 1,2-дихлоргексафторциклобутана, включающий пиролиз хлортрифторэтилена с последующим дехлорированием выделенного 1,2-дихлоргексафторбутена-3 в присутствии цинка в растворителе, отличающийся тем, что исходный хлортрифтоэтилен пиролизуют при температуре от 505 до 600°С в течение 0,5-15 с, затем полученный пиролизат конденсируют при температуре от 0 до -10°С, конденсат ректифицируют с выделением фракции, кипящей при 59,0-59,5°С и содержащей 1,2-дихлоргексафторциклобутан, а фракцию, кипящую при 63,5-64°С и содержащую 1,2-дихлоргексафторбутен-З, подвергают дехлорированию в полярном растворителе при температуре от 37 до 50°С.1. The method of producing hexafluorobutadiene and 1,2-dichlorohexafluorocyclobutane, including the pyrolysis of chlorotrifluoroethylene followed by dechlorination of the isolated 1,2-dichlorohexafluorobutene-3 in the presence of zinc in a solvent, characterized in that the starting chlorotrifluoroethylene is pyrolyzed at a temperature of from 505 to 600 ° C. , 5-15 s, then the resulting pyrolyzate is condensed at a temperature of 0 to -10 ° C, the condensate is rectified to isolate a fraction boiling at 59.0-59.5 ° C and containing 1,2-dichlorohexafluorocyclobutane, and a fraction boiling at 63.5-64 ° C and containing 1 , 2-dichlorohexafluorobutene-3, is subjected to dechlorination in a polar solvent at a temperature of from 37 to 50 ° C. 2. Способ по п.1, отличающийся тем, что продукты, не сконденсированные на стадии конденсации пиролизата, возвращают на пиролиз.2. The method according to claim 1, characterized in that the products are not condensed at the stage of condensation of the pyrolyzate, returned to the pyrolysis.
RU2004118462/04A 2004-06-15 2004-06-15 Method for preparing hexafluorobutadiene and 1,2-dichlorohexafluorocyclobutane RU2264376C1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
RU2004118462/04A RU2264376C1 (en) 2004-06-15 2004-06-15 Method for preparing hexafluorobutadiene and 1,2-dichlorohexafluorocyclobutane
TW093130515A TWI289548B (en) 2004-06-15 2004-10-08 Process for production of hexafluorobutadiene and 1,2-dichlorohexafluorocyclobutane
KR1020040087082A KR101145407B1 (en) 2004-06-15 2004-10-29 Process for production of hexafluorobutadiene and 1,2-dichlorohexafluorocyclobutane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2004118462/04A RU2264376C1 (en) 2004-06-15 2004-06-15 Method for preparing hexafluorobutadiene and 1,2-dichlorohexafluorocyclobutane

Publications (2)

Publication Number Publication Date
RU2264376C1 RU2264376C1 (en) 2005-11-20
RU2004118462A true RU2004118462A (en) 2006-01-10

Family

ID=35867169

Family Applications (1)

Application Number Title Priority Date Filing Date
RU2004118462/04A RU2264376C1 (en) 2004-06-15 2004-06-15 Method for preparing hexafluorobutadiene and 1,2-dichlorohexafluorocyclobutane

Country Status (3)

Country Link
KR (1) KR101145407B1 (en)
RU (1) RU2264376C1 (en)
TW (1) TWI289548B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109651074A (en) * 2018-11-20 2019-04-19 西安近代化学研究所 A kind of preparation method of 1,2,3,4- tetrachloro-hexafluoro butane

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2240426B1 (en) 2008-01-08 2016-05-25 Solvay Specialty Polymers Italy S.p.A. Process for the synthesis of perfluorobutadiene
CN104496748A (en) * 2014-12-29 2015-04-08 上海三爱富新材料股份有限公司 Method for preparing 3,4-dichlorohexafluoro-1-butene
CN114539021B (en) * 2022-02-24 2024-02-02 福建省建阳金石氟业有限公司 Production process of hexafluorobutadiene
CN115259993B (en) * 2022-07-19 2023-04-07 福建省杭氟电子材料有限公司 Preparation method of hexafluorobutadiene

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2404374A (en) * 1943-04-23 1946-07-23 Du Pont Polyfluorinated cycloparaffins and process for producing them
JP3500617B2 (en) * 1993-08-27 2004-02-23 ダイキン工業株式会社 Method for producing hexafluorocyclobutane

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109651074A (en) * 2018-11-20 2019-04-19 西安近代化学研究所 A kind of preparation method of 1,2,3,4- tetrachloro-hexafluoro butane

Also Published As

Publication number Publication date
KR20050119075A (en) 2005-12-20
KR101145407B1 (en) 2012-05-15
RU2264376C1 (en) 2005-11-20
TW200540140A (en) 2005-12-16
TWI289548B (en) 2007-11-11

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Legal Events

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MM4A The patent is invalid due to non-payment of fees

Effective date: 20080616

NF4A Reinstatement of patent

Effective date: 20091210

MM4A The patent is invalid due to non-payment of fees

Effective date: 20120616