KR960008642B1 - High purification of 1,1,1,2-tetra-fluoromethane - Google Patents

High purification of 1,1,1,2-tetra-fluoromethane Download PDF

Info

Publication number
KR960008642B1
KR960008642B1 KR93026521A KR930026521A KR960008642B1 KR 960008642 B1 KR960008642 B1 KR 960008642B1 KR 93026521 A KR93026521 A KR 93026521A KR 930026521 A KR930026521 A KR 930026521A KR 960008642 B1 KR960008642 B1 KR 960008642B1
Authority
KR
South Korea
Prior art keywords
fluoromethane
tetra
hfc
high purification
drying
Prior art date
Application number
KR93026521A
Other languages
Korean (ko)
Other versions
KR950017883A (en
Inventor
Young-Soo Kwon
Byung-Sung Ahn
Hong-Kon Kim
Sang-Deuk Lee
Moon-Jo Jung
Original Assignee
Korea Inst Sci & Tech
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 Korea Inst Sci & Tech filed Critical Korea Inst Sci & Tech
Priority to KR93026521A priority Critical patent/KR960008642B1/en
Publication of KR950017883A publication Critical patent/KR950017883A/en
Application granted granted Critical
Publication of KR960008642B1 publication Critical patent/KR960008642B1/en

Links

Classifications

    • 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
    • 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

Landscapes

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

Abstract

The fine purification method for 1,1,1,2-tetrafluoroethane(HFC-134a) consists of the steps of; (a) separating the top flux of the distillation tower for HFC-134a; (b) neutralizing and drying; (c) removing hydrogen fluorine(HF); (d) removing water from the bottom flux of the distillation tower by drying. The HFC-134a contains no more than 100 ppm of HF and water respectively.
KR93026521A 1993-12-04 1993-12-04 High purification of 1,1,1,2-tetra-fluoromethane KR960008642B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR93026521A KR960008642B1 (en) 1993-12-04 1993-12-04 High purification of 1,1,1,2-tetra-fluoromethane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR93026521A KR960008642B1 (en) 1993-12-04 1993-12-04 High purification of 1,1,1,2-tetra-fluoromethane

Publications (2)

Publication Number Publication Date
KR950017883A KR950017883A (en) 1995-07-20
KR960008642B1 true KR960008642B1 (en) 1996-06-28

Family

ID=19369954

Family Applications (1)

Application Number Title Priority Date Filing Date
KR93026521A KR960008642B1 (en) 1993-12-04 1993-12-04 High purification of 1,1,1,2-tetra-fluoromethane

Country Status (1)

Country Link
KR (1) KR960008642B1 (en)

Also Published As

Publication number Publication date
KR950017883A (en) 1995-07-20

Similar Documents

Publication Publication Date Title
CA2241131A1 (en) A manufacturing method for 1,1,1,3,3-pentafluoropropane
MY127300A (en) Process of removing contaminants from an olefin stream using extractive distillation
ZA919228B (en) Continuous method for removing oil vapor from feed gases containing water vapor
CA2243499A1 (en) Azeotrope comprising pentafluoropropane and hydrogen fluoride and method for separating and purifying pentafluoropropane
ES8304908A1 (en) Continuous process for the gaseous phase preparation in controlled proportions of trichlorotrifluoroethane, dichlorotetrafluoroethane and monochloropentafluorethane.
IL105142A0 (en) Method of improving the selectivity of carbon membranes by chemical carbon vapor deposition
AU1380192A (en) Method of treating gas based on electrolytic fluorine, which may contain uranium compounds
EP0416127A4 (en) Process for efficiently recovering adsorbable gas from gas which contains adsorbable gas at low concentration
MY135415A (en) Low pressure separation of dimethyl ether from an olefin stream
MY136739A (en) Process for removing mercury from liquid hydrocarbon
TW264460B (en)
DE69829066D1 (en) PROCESS FOR CLEANING ALKANOLAMINES
KR960008642B1 (en) High purification of 1,1,1,2-tetra-fluoromethane
CA2150872A1 (en) Method for removing acidic and salt impurities from the condensed phase from the reaction effluent in a process for dimethyl carbonate synthesis
ZA965076B (en) Process and apparatus for treatment of a gas containing hydrogen sulphide, comprising a step for the elimination of sulphur crystallised by cooling.
AU5330590A (en) Process for the continuous recovery of hydrogen fluoride gas
ATE175436T1 (en) METHOD FOR CLEANING COMPRESSED GASES
TW328081B (en) A separation process of pivalic acid
SG43281A1 (en) Process for removing olefinic impurities from fluorinated c3-c6-hydrocarbons
GB2252308B (en) Process for removing acid gases from gaseous mixtures
MY129086A (en) High pressure separation of dimethyl ether from an olefin stream
PL298139A1 (en) Method of obtaining diacetyl rheine
JPS5215166A (en) Fluorin-containing waste water treating method
ES8307659A1 (en) Process for the purification of hydrochloric acids.
FR2655872B1 (en) PROCESS FOR SEPARATING ISOMERS FROM A CROWN ETHER, PARTICULARLY FOR RECOVERING THE PURE CIS-SYN-CIS ISOMER OF DICYCLOHEXYL 18 - CROWN 6 - DCH18C6.

Legal Events

Date Code Title Description
A201 Request for examination
G160 Decision to publish patent application
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20030407

Year of fee payment: 8

LAPS Lapse due to unpaid annual fee