KR900003058A - Separation method of HF through phase separation and distillation - Google Patents

Separation method of HF through phase separation and distillation Download PDF

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Publication number
KR900003058A
KR900003058A KR1019890010997A KR890010997A KR900003058A KR 900003058 A KR900003058 A KR 900003058A KR 1019890010997 A KR1019890010997 A KR 1019890010997A KR 890010997 A KR890010997 A KR 890010997A KR 900003058 A KR900003058 A KR 900003058A
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South Korea
Prior art keywords
mpa
separation zone
distillation column
organic phase
recovering
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Application number
KR1019890010997A
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Korean (ko)
Inventor
어니스트 맨저 리오
노트 말리카르주나 라오 벨리유르
티이 락웰 리차드
앤드류 시스크 마이클
제임즈 워어워즈 에드윈
윈터링엄 로이
Original Assignee
이 아이 듀우판 디 네모아 앤드 캄파니
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.)
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Priority claimed from US07/226,736 external-priority patent/US4911792A/en
Application filed by 이 아이 듀우판 디 네모아 앤드 캄파니 filed Critical 이 아이 듀우판 디 네모아 앤드 캄파니
Publication of KR900003058A publication Critical patent/KR900003058A/en

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    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B7/00Halogens; Halogen acids
    • C01B7/19Fluorine; Hydrogen fluoride

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

Abstract

내용 없음No content

Description

상 분리와 증류를 통한 HF의 분리방법Separation method of HF through phase separation and distillation

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제 1도는 본 발명의 공정을 나타내는 한 실시양태의 개략적인 흐름도이다.1 is a schematic flowchart of an embodiment representing the process of the present invention.

제 2도는 본 발명의 두번째 실시양태의 개략도이다.2 is a schematic diagram of a second embodiment of the present invention.

Claims (6)

불화수소, 2,2-디클로로-1,1,1-트리플루오로에탄, 및/또는 2-클로로-1,1,1,2-테트라플루오로에탄으로 구성된 혼합물을 분리 지역내에서 약 0.1㎫ 내지 약 3.55㎫의 압력과 약 -80℃ 내지 약 40℃의 온도에서, 상기 혼합물을 축합시키고, 그럼으로써 15몰% 이하의 HF로 구성된 유기상을 분리 지역내에서 하층으로서 형성시키고, 최소한 93몰%의 HF로 구성된 유기상을 분리지역내에서 상층으로서 형성시켜, 상기한 혼합물을 분리하는 방법.A mixture consisting of hydrogen fluoride, 2,2-dichloro-1,1,1-trifluoroethane, and / or 2-chloro-1,1,1,2-tetrafluoroethane was about 0.1 MPa in the separation zone. At a pressure of from about 3.55 MPa and a temperature of from about -80 ° C to about 40 ° C, the mixture is condensed, whereby an organic phase consisting of up to 15 mole percent HF is formed as a lower layer in the separation zone, at least 93 mole percent Forming an organic phase composed of HF as an upper layer in a separation zone, thereby separating the mixture. 제1항에 있어서, 온도가 약 -40℃ 내지 약 0℃이고 압력이 약 0.1㎫ 내지 약 1.83㎫인 방법.The method of claim 1 wherein the temperature is from about −40 ° C. to about 0 ° C. and the pressure is from about 0.1 MPa to about 1.83 MPa. 제1항에 있어서, (a) 분리지역의 상부로부터 산 상을 제거하고 (b) (a)에서 생긴 산 상을, 약 -4℃ 내지 약 133℃의 온도와 약 0.10㎫ 내지 3.55㎫의 압력에서 증류 컬럼까지 공급하여 산 상으로부터 HF성분을 분리하고 (c) 증류 컬럼의 저부로부터 (b)의 HF성분을 회수하는 단계가 포함된 방법.The process of claim 1 wherein (a) the acid phase is removed from the top of the separation zone and (b) the acid phase resulting from (a) is subjected to a temperature of about −4 ° C. to about 133 ° C. and a pressure of about 0.10 MPa to 3.55 MPa. Separating the HF component from the acid phase by feeding it to a distillation column at (c) and recovering the HF component of (b) from the bottom of the distillation column. 제3항에 있어서, (d) 증류 컬럼의 상부로부터 HF로 구성되는 증류액을 회수하고 (e) (d)의 증류액을 분리지역으로 재순환시키는 단계가 포함된 방법.4. The process of claim 3 comprising the steps of: (d) recovering the distillate consisting of HF from the top of the distillation column and (e) recycling the distillate of (d) to the separation zone. 제1항에 있어서, (a) 분리지역의 저부로부터 유기상을 제거하고 (b) (a)에서 생긴 유기상을, 약 -15℃ 내지 약 120℃의 온도와 약 0.10㎫ 내지 약 3.55㎫의 압력에서, 증류 컬럼으로 공급하여 유기상으로부터 HF성분을 분리하고, (c) 증류 컬럼의 저부로부터 (b)의 유기상을 회수하는 단계가 포함된 방법.The process of claim 1 wherein (a) removing the organic phase from the bottom of the separation zone and (b) forming the organic phase in (a) at a temperature of from about -15 ° C to about 120 ° C and a pressure of about 0.10 MPa to about 3.55 MPa. And separating the HF component from the organic phase by feeding it to a distillation column and recovering the organic phase of (b) from the bottom of the distillation column. 제5항에 있어서, (d) 증류 컬럼의 상부에 생긴 HF로 구성된 증류액을 회수하고 (e) (d)의 증류액을 분리지역으로 재순환시키는 단계가 포함된 방법.6. The process of claim 5 comprising the steps of: (d) recovering the distillate consisting of HF formed on top of the distillation column and (e) recycling the distillate of (d) to the separation zone. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019890010997A 1988-08-01 1989-07-31 Separation method of HF through phase separation and distillation KR900003058A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/226,736 US4911792A (en) 1988-08-01 1988-08-01 Process for the separation of HF via phase separation and distillation
US88-226,736 1988-08-01

Publications (1)

Publication Number Publication Date
KR900003058A true KR900003058A (en) 1990-03-23

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KR (1) KR900003058A (en)
CN (1) CN1019008B (en)
AR (1) AR245089A1 (en)
AT (1) ATE86958T1 (en)
BR (1) BR8903820A (en)
DE (1) DE68905398T2 (en)
ZA (1) ZA895864B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1044568C (en) * 1994-02-17 1999-08-11 天津大学 Distillation method for thermal sensitive material with simultaneous prodn. of light and heavy impurities
US7329786B2 (en) * 2001-09-28 2008-02-12 Great Lakes Chemical Corporation Processes for producing CF3CFHCF3
CN100383053C (en) * 2004-08-11 2008-04-23 巨化集团公司 Method for recovering and making antimony oxide from antimony pentachloride solution
MX2020001859A (en) * 2011-09-15 2021-12-14 Daikin Ind Ltd Method for purifying chlorinated hydrocarbon.
CN108975274B (en) * 2018-10-17 2019-12-27 杨松 Preparation electronic level hydrogen fluoride oxidation reaction unit

Also Published As

Publication number Publication date
CN1019008B (en) 1992-11-11
AR245089A1 (en) 1993-12-30
DE68905398T2 (en) 1993-09-09
ZA895864B (en) 1991-04-24
DE68905398D1 (en) 1993-04-22
BR8903820A (en) 1990-03-20
CN1040358A (en) 1990-03-14
ATE86958T1 (en) 1993-04-15

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